[stable] Backport constantinople changes (#9723 )

* ethash: implement EIP-1234 (#9187) * Implement EIP-1052 (EXTCODEHASH) and fix several issues in state account cache (#9234) * Implement EIP-1052 and fix several issues related to account cache * Fix jsontests * Merge two matches together * Avoid making unnecessary Arc<Vec> * Address grumbles * Comply EIP-86 with the new definition (#9140) * Comply EIP-86 with the new CREATE2 opcode * Fix rpc compile * Fix interpreter CREATE/CREATE2 stack pop difference * Add unreachable! to fix compile * Fix instruction_info * Fix gas check due to new stack item * Add new tests in executive * Fix have_create2 comment * Remove all unused references of eip86_transition and block_number * Implement KIP4: create2 for wasm (#9277) * Basic implementation for kip4 * Add KIP-4 config flags * typo: docs fix * Fix args offset * Add tests for create2 * tests: evm * Update wasm-tests and fix all gas costs * Update wasm-tests * Update wasm-tests and fix gas costs * `gasleft` extern implemented for WASM runtime (kip-6) (#9357) * Wasm gasleft extern added * wasm_gasleft_activation_transition -> kip4_transition * use kip-6 switch * gasleft_panic -> gasleft_fail rename * call_msg_gasleft test added and gas_left agustments because this https://github.com/paritytech/wasm-tests/pull/52 * change .. to _ * fix comment for the have_gasleft param * update tests (0edbf860ff) * Add EIP-1014 transition config flag (#9268) * Add EIP-1014 transition config flag * Remove EIP-86 configs * Change CREATE2 opcode index to 0xf5 * Move salt to the last item in the stack * Change sendersaltandaddress scheme to comply with current EIP-1014 * Fix json configs * Fix create2 test * Fix deprecated comments * EIP 1283: Net gas metering for SSTORE without dirty maps (#9319) * Implement last_checkpoint_storage_at * Add reverted_storage_at for externalities * sstore_clears_count -> sstore_clears_refund * Implement eip1283 for evm * Add eip1283Transition params * evm: fix tests * jsontests: fix test * Return checkpoint index when creating * Comply with spec Version II * Fix docs * Fix jsontests feature compile * Address grumbles * Fix no-checkpoint-entry case * Remove unnecessary expect * Add test for State::checkpoint_storage_at * Add executive level test for eip1283 * Hard-code transaction_checkpoint_index to 0 * Fix jsontests * Add tests for checkpoint discard/revert * Require checkpoint to be empty for kill_account and commit * Get code coverage * Use saturating_add/saturating_sub * Fix issues in insert_cache * Clear the state again * Fix original_storage_at * Early return for empty RLP trie storage * Update comments * Fix borrow_mut issue * Simplify checkpoint_storage_at if branches * Better commenting for gas handling code * Address naming grumbles * More tests * Fix an issue in overwrite_with * Add another test * Fix comment * Remove unnecessary bracket * Move orig to inner if * Remove test coverage for this PR * Add tests for executive original value * Add warn! for an unreachable cause * Update state tests execution model (#9440) * Update & fix JSON state tests. * Update tests to be able to run ethtest at 021fe3d410773024cd5f0387e62db6e6ec800f32. - Touch user in state - Adjust transaction tests to new json format * Switch to same commit for submodule ethereum/test as geth (next includes constantinople changes). Added test `json_tests::trie::generic::TrieTests_trieanyorder` and a few difficulty tests. * Remove trietestnextprev as it would require to parse differently and implement it. * Support new (shitty) format of transaction tests. * Ignore junk in ethereum/tests repo. * Ignore incorrect test. * Update to a later commit * Move block number to a constant. * Fix ZK2 test - touched account should also be cleared. * Fix conflict resolution * Fix checkpointing when creating contract failed (#9514) * In create memory calculation is the same for create2 because the additional parameter was popped before. (#9522) * Enable all Constantinople hard fork changes in constantinople_test.json (#9505) * Enable all Constantinople hard fork changes in constantinople_test.json * Address grumbles * Remove EIP-210 activation * 8m -> 5m * Temporarily add back eip210 transition so we can get test passed * Add eip210_test and remove eip210 transition from const_test * Add constantinople conf to EvmTestClient. (#9570) * Add constantinople conf to EvmTestClient. * Skip some test to update submodule etheureum/tests submodule to latest. * Put skipping 'under issue' test behind a feature. * Change blockReward for const-test to pass ethereum/tests * Update tests to new constantinple definition (change of reward at block 5). Switch 'reference' to string, that way we can include issues from others repo (more flexible)Update tests to new constantinple definition (change of reward at block 5). Switch 'reference' to string, that way we can include issues from others repo (more flexible). * Fix modexp and bn128_mul gas prices in chain config * Changes `run_test_path` method to append its directory results (without that it stop testing at the first file failure). Add some missing tests. Add skip for those (block create2 is one hundred percent false but on hive we can see that geth and aleth got similar issue for this item). * retab current.json * Update reference to parity issue for failing tests. * Hardfork the testnets (#9562) * ethcore: propose hardfork block number 4230000 for ropsten * ethcore: propose hardfork block number 9000000 for kovan * ethcore: enable kip-4 and kip-6 on kovan * etcore: bump kovan hardfork to block 9.2M * ethcore: fix ropsten constantinople block number to 4.2M * ethcore: disable difficulty_test_ropsten until ethereum/tests are updated upstream * Don't hash the init_code of CREATE. (#9688) * Implement CREATE2 gas changes and fix some potential overflowing (#9694) * Implement CREATE2 gas changes and fix some potential overflowing * Ignore create2 state tests * Split CREATE and CREATE2 in gasometer * Generalize rounding (x + 31) / 32 to to_word_size * ethcore: delay ropsten hardfork (#9704) * Add hardcoded headers (#9730) * add foundation hardcoded header #6486017 * add ropsten hardcoded headers #4202497 * add kovan hardcoded headers #9023489 * gitlab ci: releasable_branches: change variables condition to schedule (#9729) * HF in POA Core (2018-10-22) (#9724) https://github.com/poanetwork/poa-chain-spec/pull/87
Backports for stable 2.0.7 (#9648 )
2018-10-10 18:55:52 +02:00 · 2018-10-10 17:33:03 +02:00 · 2018-09-21 16:28:04 +02:00 · 2018-09-21 14:38:44 +02:00 · 2018-09-19 20:28:36 +02:00 · 2018-09-19 10:07:35 +02:00
152 changed files with 4008 additions and 2037 deletions
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,242 +1,181 @@
 stages:
  - test
-  - push-release
  - build
-  - docs
+  - publish
+  - optional
+
+image:                             parity/rust:gitlab-ci
+
 variables:
-  RUST_BACKTRACE: "1"
-  RUSTFLAGS: ""
-  CARGOFLAGS: ""
-  CI_SERVER_NAME: "GitLab CI"
+  CI_SERVER_NAME:                  "GitLab CI"
+  CARGO_HOME:                      "${CI_PROJECT_DIR}/.cargo"
+  BUILD_TARGET:                    ubuntu
+  BUILD_ARCH:                      amd64
+  CARGO_TARGET:                    x86_64-unknown-linux-gnu
+
 cache:
-  key: "$CI_BUILD_STAGE-$CI_BUILD_REF_NAME"
+  key:                             "${CI_JOB_NAME}"
  paths:
-    - target/
-  untracked: true
-linux-amd64:
-  stage: build
-  image: parity/rust:gitlab-ci
-  only:
+    - ./target
+    - ./.cargo
+
+.releaseable_branches:             # list of git refs for building GitLab artifacts (think "pre-release binaries")
+  only:                            &releaseable_branches
+    - stable
    - beta
    - tags
-    - stable
-    - triggers
+    - schedules
+
+.collect_artifacts:                &collect_artifacts
+  artifacts:
+    name:                          "${CI_JOB_NAME}_${CI_COMMIT_REF_NAME}"
+    when:                          on_success
+    expire_in:                     1 mos
+    paths:
+    - artifacts/
+
+.determine_version:                &determine_version
+  - VERSION="$(sed -r -n '1,/^version/s/^version = "([^"]+)".*$/\1/p' Cargo.toml)"
+  - DATE_STR="$(date +%Y%m%d)"
+  - ID_SHORT="$(echo ${CI_COMMIT_SHA} | cut -c 1-7)"
+  - test "${CI_COMMIT_REF_NAME}" = "nightly" && VERSION="${VERSION}-${ID_SHORT}-${DATE_STR}"
+  - export VERSION
+  - echo "Version = ${VERSION}"
+
+test-linux:
+  stage:                           test
+  variables:
+    RUN_TESTS:                     cargo
  script:
-    - rustup default stable
-    # ARGUMENTS: 1. BUILD_PLATFORM (target for binaries) 2. PLATFORM (target for cargo) 3. ARC (architecture) 4. & 5. CC & CXX flags 6. binary identifier
-    - scripts/gitlab-build.sh x86_64-unknown-linux-gnu x86_64-unknown-linux-gnu amd64 gcc g++ linux
+    - scripts/gitlab/test-all.sh stable
  tags:
    - rust-stable
-  artifacts:
-    paths:
-    - parity.zip
-    name: "stable-x86_64-unknown-linux-gnu_parity"
-linux-i686:
-  stage: build
-  image: parity/rust-i686:gitlab-ci
-  only:
-    - beta
-    - tags
-    - stable
-    - triggers
+
+build-linux:
+  stage:                           build
+  only:                            *releaseable_branches
+  variables:
+    CARGO_TARGET:                  x86_64-unknown-linux-gnu
  script:
-    - scripts/gitlab-build.sh i686-unknown-linux-gnu i686-unknown-linux-gnu i386 gcc g++ linux
-  tags:
-    - rust-i686
-  artifacts:
-    paths:
-      - parity.zip
-    name: "i686-unknown-linux-gnu"
-  allow_failure: true
-linux-armv7:
-  stage: build
-  image: parity/rust-armv7:gitlab-ci
-  only:
-    - beta
-    - tags
-    - stable
-    - triggers
-  script:
-    - scripts/gitlab-build.sh armv7-unknown-linux-gnueabihf armv7-unknown-linux-gnueabihf armhf arm-linux-gnueabihf-gcc arm-linux-gnueabihf-g++ linux
-  tags:
-    - rust-arm
-  artifacts:
-    paths:
-    - parity.zip
-    name: "armv7_unknown_linux_gnueabihf_parity"
-  allow_failure: true
-linux-armhf:
-  stage: build
-  image: parity/rust-arm:gitlab-ci
-  only:
-    - beta
-    - tags
-    - stable
-    - triggers
-  script:
-    - scripts/gitlab-build.sh arm-unknown-linux-gnueabihf arm-unknown-linux-gnueabihf armhf arm-linux-gnueabihf-gcc arm-linux-gnueabihf-g++ linux
-  tags:
-    - rust-arm
-  artifacts:
-    paths:
-    - parity.zip
-    name: "arm-unknown-linux-gnueabihf_parity"
-  allow_failure: true
-linux-aarch64:
-  stage: build
-  image: parity/rust-arm64:gitlab-ci
-  only:
-    - beta
-    - tags
-    - stable
-    - triggers
-  script:
-    - scripts/gitlab-build.sh aarch64-unknown-linux-gnu aarch64-unknown-linux-gnu arm64 aarch64-linux-gnu-gcc aarch64-linux-gnu-g++ linux
-  tags:
-    - rust-arm
-  artifacts:
-    paths:
-    - parity.zip
-    name: "aarch64-unknown-linux-gnu_parity"
-linux-snap:
-  stage: build
-  image: parity/snapcraft:gitlab-ci
-  only:
-    - stable
-    - beta
-    - tags
-    - triggers
-  script:
-    - scripts/gitlab-build.sh x86_64-unknown-snap-gnu x86_64-unknown-linux-gnu amd64 gcc g++ snap
+    - scripts/gitlab/build-unix.sh
+  <<:                              *collect_artifacts
  tags:
    - rust-stable
-  artifacts:
-    paths:
-    - parity.zip
-    name: "stable-x86_64-unknown-snap-gnu_parity"
-darwin:
-  stage: build
-  only:
-    - beta
-    - tags
-    - stable
-    - triggers
+
+build-darwin:
+  stage:                           build
+  only:                            *releaseable_branches
+  variables:
+    CARGO_TARGET:                  x86_64-apple-darwin
+    CC:                            gcc
+    CXX:                           g++
  script:
-    - scripts/gitlab-build.sh x86_64-apple-darwin x86_64-apple-darwin macos gcc g++ macos
+    - scripts/gitlab/build-unix.sh
  tags:
-    - osx
-  artifacts:
-    paths:
-    - parity.zip
-    name: "x86_64-apple-darwin_parity"
-windows:
-  cache:
-    key: "%CI_BUILD_STAGE%-%CI_BUILD_REF_NAME%"
-    untracked: true
-  stage: build
-  only:
-    - beta
-    - tags
-    - stable
-    - triggers
+    - rust-osx
+  <<:                              *collect_artifacts
+
+build-windows:
+  stage:                           build
+  only:                            *releaseable_branches
+  variables:
+    CARGO_TARGET:                  x86_64-pc-windows-msvc
  script:
-    - sh scripts/gitlab-build.sh x86_64-pc-windows-msvc x86_64-pc-windows-msvc amd64 "" "" windows
+    - sh scripts/gitlab/build-windows.sh
  tags:
   - rust-windows
-  artifacts:
-    paths:
-    - parity.zip
-    name: "x86_64-pc-windows-msvc_parity"
-android-armv7:
-  stage: build
-  image: parity/parity-android:latest
-  only:
-    - beta
-    - tags
-    - stable
-    - triggers
-  script:
-    - cargo build --target=armv7-linux-androideabi
+  <<:                              *collect_artifacts
+
+publish-docker:
+  stage:                           publish
+  only:                            *releaseable_branches
+  cache: {}
+  dependencies:
+    - build-linux
  tags:
-    - rust-arm
-  allow_failure: true
-  artifacts:
-    paths:
-    - parity.zip
-    name: "armv7-linux-androideabi_parity"
-docker-build:
-  stage: build
+    - shell
+  script:
+    - scripts/gitlab/publish-docker.sh parity
+
+publish-awss3:
+  stage:                           publish
+  only:                            *releaseable_branches
+  cache: {}
+  dependencies:
+    - build-linux
+    - build-darwin
+    - build-windows
+  before_script:                   *determine_version
+  script:
+    - scripts/gitlab/publish-awss3.sh
+  tags:
+    - shell
+
+docs-jsonrpc:
+  stage:                            optional
  only:
    - tags
-    - master
-    - beta
-    - stable
-    - triggers
-  before_script:
-    - docker info
+  except:
+    - nightly
+  cache: {}
  script:
-    - if [ "$CI_BUILD_REF_NAME" == "master" ]; then DOCKER_TAG="latest"; else DOCKER_TAG=$CI_BUILD_REF_NAME; fi
-    - echo "Tag:" $DOCKER_TAG
-    - docker login -u $Docker_Hub_User_Parity -p $Docker_Hub_Pass_Parity
-    - scripts/docker-build.sh $DOCKER_TAG
-    - docker logout
+    - scripts/gitlab/docs-jsonrpc.sh
  tags:
-    - docker
-test-coverage:
-  stage: test
-  only:
-    - master
+    - shell
+
+cargo-audit:
+  stage:                           optional
  script:
-    - scripts/gitlab-test.sh test-coverage
-  tags:
-    - kcov
-  allow_failure: true
-test-rust-stable:
-  stage: test
-  image: parity/rust:gitlab-ci
-  script:
-    - scripts/gitlab-test.sh stable
+    - scripts/gitlab/cargo-audit.sh
  tags:
    - rust-stable
-test-rust-beta:
-  stage: test
-  only:
-    - triggers
-    - master
-  image: parity/rust:gitlab-ci
+
+test-android:
+  stage:                           optional
+  image:                           parity/rust-android:gitlab-ci
+  variables:
+    CARGO_TARGET:                  armv7-linux-androideabi
  script:
-    - scripts/gitlab-test.sh beta
+    - scripts/gitlab/test-all.sh stable
+  tags:
+    - rust-arm
+
+test-darwin:
+  stage:                           optional
+  variables:
+    CARGO_TARGET:                  x86_64-apple-darwin
+    CC:                            gcc
+    CXX:                           g++
+    RUN_TESTS:                     cargo
+  script:
+    - scripts/gitlab/test-all.sh stable
+  tags:
+    - rust-osx
+
+test-windows:
+  stage:                           optional
+  variables:
+    CARGO_TARGET:                  x86_64-pc-windows-msvc
+    RUN_TESTS:                     cargo
+  script:
+    - sh scripts/gitlab/test-all.sh stable
+  tags:
+   - rust-windows
+
+test-beta:
+  stage:                           optional
+  variables:
+    RUN_TESTS:                     cargo
+  script:
+    - scripts/gitlab/test-all.sh beta
  tags:
    - rust-beta
-  allow_failure: true
-test-rust-nightly:
-  stage: test
-  only:
-    - triggers
-    - master
-  image: parity/rust:gitlab-ci
+
+test-nightly:
+  stage:                           optional
+  variables:
+    RUN_TESTS:                     all
  script:
-    - scripts/gitlab-test.sh nightly
+    - scripts/gitlab/test-all.sh nightly
  tags:
-    - rust
    - rust-nightly
-  allow_failure: true
-json-rpc-docs:
-  stage: docs
-  only:
-    - tags
-  image: parity/rust:gitlab-ci
-  script:
-    - scripts/gitlab-rpc-docs.sh
-  tags:
-    - docs
-push-release:
-  stage: push-release
-  only:
-    - tags
-    - triggers
-  image: parity/rust:gitlab-ci
-  script:
-    - scripts/gitlab-push-release.sh
-  tags:
-    - curl
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -271,6 +271,15 @@ dependencies = [
 "crossbeam-utils 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

+[[package]]
+name = "crossbeam-deque"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "crossbeam-epoch 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-utils 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "crossbeam-epoch"
 version = "0.3.1"
@@ -298,6 +307,19 @@ dependencies = [
 "scopeguard 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

+[[package]]
+name = "crossbeam-epoch"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "arrayvec 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-utils 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memoffset 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "scopeguard 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "crossbeam-utils"
 version = "0.2.2"
@@ -314,6 +336,11 @@ dependencies = [
 "cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

+[[package]]
+name = "crossbeam-utils"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "crunchy"
 version = "0.1.6"
@@ -472,7 +499,7 @@ dependencies = [
 "either 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "keccak-hash 0.1.2 (git+https://github.com/paritytech/parity-common)",
- "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "memmap 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "parking_lot 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "primal 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -576,7 +603,7 @@ version = "1.12.0"
 name = "ethcore-io"
 version = "1.12.0"
 dependencies = [
- "crossbeam 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-deque 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "fnv 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
 "mio 0.6.14 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1062,7 +1089,7 @@ dependencies = [
 "futures 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
 "hyper 0.11.24 (registry+https://github.com/rust-lang/crates.io-index)",
 "hyper-rustls 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "tokio-core 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
 "tokio-timer 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "url 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1091,7 +1118,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"

 [[package]]
 name = "fs-swap"
-version = "0.2.3"
+version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1227,7 +1254,7 @@ dependencies = [
 "httparse 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
 "iovec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "language-tags 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "mime 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
 "percent-encoding 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "relay 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1488,7 +1515,7 @@ source = "git+https://github.com/paritytech/parity-common#0045887fecd2fec39e56c9
 dependencies = [
 "elastic-array 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "fs-swap 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fs-swap 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
 "interleaved-ordered 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "kvdb 0.1.0 (git+https://github.com/paritytech/parity-common)",
 "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1585,12 +1612,12 @@ name = "log"
 version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
 name = "log"
-version = "0.4.1"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1705,7 +1732,7 @@ dependencies = [
 "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "lazycell 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "miow 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "net2 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)",
 "slab 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1717,7 +1744,7 @@ name = "mio-named-pipes"
 version = "0.1.5"
 source = "git+https://github.com/alexcrichton/mio-named-pipes#6ad80e67fe7993423b281bc13d307785ade05d37"
 dependencies = [
- "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "mio 0.6.14 (registry+https://github.com/rust-lang/crates.io-index)",
 "miow 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1930,7 +1957,7 @@ source = "git+https://github.com/paritytech/parity-common#0045887fecd2fec39e56c9
 name = "parity-clib"
 version = "1.12.0"
 dependencies = [
- "parity-ethereum 2.0.3",
+ "parity-ethereum 2.0.7",
 ]

 [[package]]
@@ -1947,7 +1974,7 @@ dependencies = [

 [[package]]
 name = "parity-ethereum"
-version = "2.0.3"
+version = "2.0.7"
 dependencies = [
 "ansi_term 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "atty 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1996,7 +2023,7 @@ dependencies = [
 "parity-rpc 1.12.0",
 "parity-rpc-client 1.4.0",
 "parity-updater 1.12.0",
- "parity-version 2.0.3",
+ "parity-version 2.0.7",
 "parity-whisper 0.1.0",
 "parking_lot 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "path 0.1.1 (git+https://github.com/paritytech/parity-common)",
@@ -2135,7 +2162,7 @@ dependencies = [
 "parity-crypto 0.1.0 (git+https://github.com/paritytech/parity-common)",
 "parity-reactor 0.1.0",
 "parity-updater 1.12.0",
- "parity-version 2.0.3",
+ "parity-version 2.0.7",
 "parking_lot 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "patricia-trie 0.2.1 (git+https://github.com/paritytech/parity-common)",
 "plain_hasher 0.1.0 (git+https://github.com/paritytech/parity-common)",
@@ -2180,7 +2207,7 @@ source = "git+https://github.com/nikvolf/parity-tokio-ipc#2af3e5b6b746552d818106
 dependencies = [
 "bytes 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
 "futures 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "mio-named-pipes 0.1.5 (git+https://github.com/alexcrichton/mio-named-pipes)",
 "miow 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "rand 0.3.20 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2206,7 +2233,7 @@ dependencies = [
 "matches 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
 "parity-bytes 0.1.0 (git+https://github.com/paritytech/parity-common)",
 "parity-hash-fetch 1.12.0",
- "parity-version 2.0.3",
+ "parity-version 2.0.7",
 "parking_lot 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "path 0.1.1 (git+https://github.com/paritytech/parity-common)",
 "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2217,7 +2244,7 @@ dependencies = [

 [[package]]
 name = "parity-version"
-version = "2.0.3"
+version = "2.0.7"
 dependencies = [
 "parity-bytes 0.1.0 (git+https://github.com/paritytech/parity-common)",
 "rlp 0.2.1 (git+https://github.com/paritytech/parity-common)",
@@ -2494,7 +2521,7 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "byteorder 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "parity-wasm 0.31.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

@@ -3092,7 +3119,7 @@ dependencies = [
 "bytes 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
 "futures 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
 "iovec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "mio 0.6.14 (registry+https://github.com/rust-lang/crates.io-index)",
 "scoped-tls 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "tokio 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3117,7 +3144,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "bytes 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
 "futures 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
@@ -3155,7 +3182,7 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "futures 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "mio 0.6.14 (registry+https://github.com/rust-lang/crates.io-index)",
 "slab 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "tokio-executor 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3212,7 +3239,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "crossbeam-deque 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "futures 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "num_cpus 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "tokio-executor 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3243,7 +3270,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "bytes 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
 "futures 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "mio 0.6.14 (registry+https://github.com/rust-lang/crates.io-index)",
 "tokio-io 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
 "tokio-reactor 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3645,10 +3672,13 @@ dependencies = [
 "checksum crossbeam 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "24ce9782d4d5c53674646a6a4c1863a21a8fc0cb649b3c94dfc16e45071dea19"
 "checksum crossbeam-deque 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f739f8c5363aca78cfb059edf753d8f0d36908c348f3d8d1503f03d8b75d9cf3"
 "checksum crossbeam-deque 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c1bdc73742c36f7f35ebcda81dbb33a7e0d33757d03a06d9ddca762712ec5ea2"
+"checksum crossbeam-deque 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3486aefc4c0487b9cb52372c97df0a48b8c249514af1ee99703bf70d2f2ceda1"
 "checksum crossbeam-epoch 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "927121f5407de9956180ff5e936fe3cf4324279280001cd56b669d28ee7e9150"
 "checksum crossbeam-epoch 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "9b4e2817eb773f770dcb294127c011e22771899c21d18fce7dd739c0b9832e81"
+"checksum crossbeam-epoch 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "30fecfcac6abfef8771151f8be4abc9e4edc112c2bcb233314cafde2680536e9"
 "checksum crossbeam-utils 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "2760899e32a1d58d5abb31129f8fae5de75220bc2176e77ff7c627ae45c918d9"
 "checksum crossbeam-utils 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "d636a8b3bcc1b409d7ffd3facef8f21dcb4009626adbd0c5e6c4305c07253c7b"
+"checksum crossbeam-utils 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "677d453a17e8bd2b913fa38e8b9cf04bcdbb5be790aa294f2389661d72036015"
 "checksum crunchy 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "a2f4a431c5c9f662e1200b7c7f02c34e91361150e382089a8f2dec3ba680cbda"
 "checksum crunchy 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c240f247c278fa08a6d4820a6a222bfc6e0d999e51ba67be94f44c905b2161f2"
 "checksum ct-logs 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "61cd11fb222fecf889f4531855c614548e92e8bd2eb178e35296885df5ee9a7c"
@@ -3674,7 +3704,7 @@ dependencies = [
 "checksum fixed-hash 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b18d6fd718fb4396e7a9c93ac59ba7143501467ca7a143c145b5555a571d5576"
 "checksum fixedbitset 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "86d4de0081402f5e88cdac65c8dcdcc73118c1a7a465e2a05f0da05843a8ea33"
 "checksum fnv 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "6cc484842f1e2884faf56f529f960cc12ad8c71ce96cc7abba0a067c98fee344"
-"checksum fs-swap 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "67f816b2a5f8a6628764a4323d1a8d9ad5303266c4e4e4486ba680f477ba7e62"
+"checksum fs-swap 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)" = "921d332c89b3b61a826de38c61ee5b6e02c56806cade1b0e5d81bd71f57a71bb"
 "checksum fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "2e9763c69ebaae630ba35f74888db465e49e259ba1bc0eda7d06f4a067615d82"
 "checksum fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "3dcaa9ae7725d12cdb85b3ad99a434db70b468c09ded17e012d86b5c1010f7a7"
 "checksum futures 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)" = "1a70b146671de62ec8c8ed572219ca5d594d9b06c0b364d5e67b722fc559b48c"
@@ -3725,7 +3755,7 @@ dependencies = [
 "checksum local-encoding 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e1ceb20f39ff7ae42f3ff9795f3986b1daad821caaa1e1732a0944103a5a1a66"
 "checksum lock_api 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "949826a5ccf18c1b3a7c3d57692778d21768b79e46eb9dd07bfc4c2160036c54"
 "checksum log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "e19e8d5c34a3e0e2223db8e060f9e8264aeeb5c5fc64a4ee9965c062211c024b"
-"checksum log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "89f010e843f2b1a31dbd316b3b8d443758bc634bed37aabade59c686d644e0a2"
+"checksum log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)" = "d4fcce5fa49cc693c312001daf1d13411c4a5283796bac1084299ea3e567113f"
 "checksum lru-cache 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4d06ff7ff06f729ce5f4e227876cb88d10bc59cd4ae1e09fbb2bde15c850dc21"
 "checksum matches 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "100aabe6b8ff4e4a7e32c1c13523379802df0772b82466207ac25b013f193376"
 "checksum memchr 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "796fba70e76612589ed2ce7f45282f5af869e0fdd7cc6199fa1aa1f1d591ba9d"
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,7 +2,7 @@
 description = "Parity Ethereum client"
 name = "parity-ethereum"
 # NOTE Make sure to update util/version/Cargo.toml as well
-version = "2.0.3"
+version = "2.0.7"
 license = "GPL-3.0"
 authors = ["Parity Technologies <admin@parity.io>"]

@@ -89,6 +89,7 @@ daemonize = { git = "https://github.com/paritytech/daemonize" }
 [features]
 miner-debug = ["ethcore/miner-debug"]
 json-tests = ["ethcore/json-tests"]
+ci-skip-issue = ["ethcore/ci-skip-issue"]
 test-heavy = ["ethcore/test-heavy"]
 evm-debug = ["ethcore/evm-debug"]
 evm-debug-tests = ["ethcore/evm-debug-tests"]
--- a/README.md
+++ b/README.md
@@ -1,111 +1,75 @@
-# Parity - fast, light, and robust Ethereum client
+![Parity Ethereum](docs/logo-parity-ethereum.svg)

-## [» Download the latest release «](https://github.com/paritytech/parity/releases/latest)
+## The fastest and most advanced Ethereum client.

-[![build status](https://gitlab.parity.io/parity/parity/badges/master/build.svg)](https://gitlab.parity.io/parity/parity/commits/master)
-[![codecov](https://codecov.io/gh/paritytech/parity/branch/master/graph/badge.svg)](https://codecov.io/gh/paritytech/parity)
-[![Snap Status](https://build.snapcraft.io/badge/paritytech/parity.svg)](https://build.snapcraft.io/user/paritytech/parity)
-[![GPLv3](https://img.shields.io/badge/license-GPL%20v3-green.svg)](https://www.gnu.org/licenses/gpl-3.0.en.html)
+<p align="center"><strong><a href="https://github.com/paritytech/parity-ethereum/releases/latest">» Download the latest release «</a></strong></p>

+<p align="center"><a href="https://gitlab.parity.io/parity/parity-ethereum/commits/master" target="_blank"><img src="https://gitlab.parity.io/parity/parity-ethereum/badges/master/build.svg" /></a>
+<a href="https://www.gnu.org/licenses/gpl-3.0.en.html" target="_blank"><img src="https://img.shields.io/badge/license-GPL%20v3-green.svg" /></a></p>

-### Join the chat!
+**Built for mission-critical use**: Miners, service providers, and exchanges need fast synchronisation and maximum uptime. Parity Ethereum provides the core infrastructure essential for speedy and reliable services.

-Get in touch with us on Gitter:
-[![Gitter: Parity](https://img.shields.io/badge/gitter-parity-4AB495.svg)](https://gitter.im/paritytech/parity)
-[![Gitter: Parity.js](https://img.shields.io/badge/gitter-parity.js-4AB495.svg)](https://gitter.im/paritytech/parity.js)
-[![Gitter: Parity/Miners](https://img.shields.io/badge/gitter-parity/miners-4AB495.svg)](https://gitter.im/paritytech/parity/miners)
-[![Gitter: Parity-PoA](https://img.shields.io/badge/gitter-parity--poa-4AB495.svg)](https://gitter.im/paritytech/parity-poa)
+- Clean, modular codebase for easy customisation
+- Advanced CLI-based client
+- Minimal memory and storage footprint
+- Synchronise in hours, not days with Warp Sync
+- Modular for light integration into your service or product

-Or join our community on Matrix:
-[![Riot: +Parity](https://img.shields.io/badge/riot-%2Bparity%3Amatrix.parity.io-orange.svg)](https://riot.im/app/#/group/+parity:matrix.parity.io)
+## Technical Overview

-Official website: https://parity.io | Be sure to check out [our wiki](https://wiki.parity.io) for more information.
+Parity Ethereum's goal is to be the fastest, lightest, and most secure Ethereum client. We are developing Parity Ethereum using the sophisticated and cutting-edge **Rust programming language**. Parity Ethereum is licensed under the GPLv3 and can be used for all your Ethereum needs.

----
+By default, Parity Ethereum runs a JSON-RPC HTTP server on port `:8545` and a Web-Sockets server on port `:8546`. This is fully configurable and supports a number of APIs.

-## About Parity
+If you run into problems while using Parity Ethereum, check out the [wiki for documentation](https://wiki.parity.io/), feel free to [file an issue in this repository](https://github.com/paritytech/parity-ethereum/issues/new), or hop on our [Gitter](https://gitter.im/paritytech/parity) or [Riot](https://riot.im/app/#/group/+parity:matrix.parity.io) chat room to ask a question. We are glad to help! **For security-critical issues**, please refer to the security policy outlined in [SECURITY.md](SECURITY.md).

-Parity's goal is to be the fastest, lightest, and most secure Ethereum client. We are developing Parity using the sophisticated and cutting-edge Rust programming language. Parity is licensed under the GPLv3, and can be used for all your Ethereum needs.
+Parity Ethereum's current beta-release is 2.1. You can download it at [the releases page](https://github.com/paritytech/parity-ethereum/releases) or follow the instructions below to build from source. Please, mind the [CHANGELOG.md](CHANGELOG.md) for a list of all changes between different versions.

-From Parity Ethereum client version 1.10.0, the User Interface (UI) is accessible in a separate application called Parity UI. To keep using the UI in the browser (deprecated), [follow these steps](https://wiki.parity.io/FAQ-Basic-Operations,-Configuration,-and-Synchronization#the-parity-ui-application-isnt-working-the-way-i-want).
+## Build Dependencies

-By default, Parity will also run a JSONRPC server on `127.0.0.1:8545` and a websockets server on `127.0.0.1:8546`. This is fully configurable and supports a number of APIs.
+Parity Ethereum requires **Rust version 1.29.x** to build.

-If you run into an issue while using Parity, feel free to file one in this repository or hop on our [Gitter](https://gitter.im/paritytech/parity) or [Riot](https://riot.im/app/#/group/+parity:matrix.parity.io) chat room to ask a question. We are glad to help! **For security-critical issues**, please refer to the security policy outlined in [SECURITY.MD](SECURITY.md).
-
-Parity's current beta-release is 1.11. You can download it at https://github.com/paritytech/parity/releases or follow the instructions below to build from source.
-
----
-
-## Build dependencies
-
-**Parity requires Rust version 1.26.0 to build**
-
-We recommend installing Rust through [rustup](https://www.rustup.rs/). If you don't already have rustup, you can install it like this:
+We recommend installing Rust through [rustup](https://www.rustup.rs/). If you don't already have `rustup`, you can install it like this:

 - Linux:
-	```bash
-	$ curl https://sh.rustup.rs -sSf | sh
-	```
-
-	Parity also requires `gcc`, `g++`, `libssl-dev`/`openssl`, `libudev-dev`, `pkg-config`, `file` and `make` packages to be installed.
-
- OSX:
-	```bash
-	$ curl https://sh.rustup.rs -sSf | sh
-	```
-
-	`clang` is required. It comes with Xcode command line tools or can be installed with homebrew.
-
- Windows
-  Make sure you have Visual Studio 2015 with C++ support installed. Next, download and run the rustup installer from
-	https://static.rust-lang.org/rustup/dist/x86_64-pc-windows-msvc/rustup-init.exe, start "VS2015 x64 Native Tools Command Prompt", and use the following command to install and set up the msvc toolchain:
  ```bash
-	$ rustup default stable-x86_64-pc-windows-msvc
+  $ curl https://sh.rustup.rs -sSf | sh
  ```

-Once you have rustup installed, then you need to install:
+  Parity Ethereum also requires `gcc`, `g++`, `libudev-dev`, `pkg-config`, `file`, `make`, and `cmake` packages to be installed.
+
+- OSX:
+  ```bash
+  $ curl https://sh.rustup.rs -sSf | sh
+  ```
+
+  `clang` is required. It comes with Xcode command line tools or can be installed with homebrew.
+
+- Windows
+  Make sure you have Visual Studio 2015 with C++ support installed. Next, download and run the `rustup` installer from
+  https://static.rust-lang.org/rustup/dist/x86_64-pc-windows-msvc/rustup-init.exe, start "VS2015 x64 Native Tools Command Prompt", and use the following command to install and set up the `msvc` toolchain:
+  ```bash
+  $ rustup default stable-x86_64-pc-windows-msvc
+  ```
+
+Once you have `rustup` installed, then you need to install:
 * [Perl](https://www.perl.org)
-* [Yasm](http://yasm.tortall.net)
+* [Yasm](https://yasm.tortall.net)

-Make sure that these binaries are in your `PATH`. After that you should be able to build parity from source.
+Make sure that these binaries are in your `PATH`. After that, you should be able to build Parity Ethereum from source.

----
-
-## Install from the snap store
-
-In any of the [supported Linux distros](https://snapcraft.io/docs/core/install):
+## Build from Source Code

 ```bash
-sudo snap install parity
-```
-
-Or, if you want to contribute testing the upcoming release:
-
-```bash
-sudo snap install parity --beta
-```
-
-And to test the latest code landed into the master branch:
-
-```bash
-sudo snap install parity --edge
-```
-
----
-
-## Build from source
-
-```bash
-# download Parity code
-$ git clone https://github.com/paritytech/parity
-$ cd parity
+# download Parity Ethereum code
+$ git clone https://github.com/paritytech/parity-ethereum
+$ cd parity-ethereum

 # build in release mode
-$ cargo build --release
+$ cargo build --release --features final
 ```

-This will produce an executable in the `./target/release` subdirectory.
+This produces an executable in the `./target/release` subdirectory.

 Note: if cargo fails to parse manifest try:

@@ -119,7 +83,7 @@ Note, when compiling a crate and you receive errors, it's in most cases your out
 $ cargo clean
 ```

-This will always compile the latest nightly builds. If you want to build stable or beta, do a
+This always compiles the latest nightly builds. If you want to build stable or beta, do a

 ```bash
 $ git checkout stable
@@ -131,11 +95,7 @@ or
 $ git checkout beta
 ```

-first.
-
----
-
-## Simple one-line installer for Mac and Ubuntu
+## Simple One-Line Installer for Mac and Linux

 ```bash
 bash <(curl https://get.parity.io -L)
@@ -147,22 +107,49 @@ The one-line installer always defaults to the latest beta release. To install a
 bash <(curl https://get.parity.io -L) -r stable
 ```

-## Start Parity
+## Start Parity Ethereum

 ### Manually

-To start Parity manually, just run
+To start Parity Ethereum manually, just run

 ```bash
 $ ./target/release/parity
 ```

-and Parity will begin syncing the Ethereum blockchain.
+so Parity Ethereum begins syncing the Ethereum blockchain.

-### Using systemd service file
+### Using `systemd` service file

-To start Parity as a regular user using systemd init:
+To start Parity Ethereum as a regular user using `systemd` init:

 1. Copy `./scripts/parity.service` to your
-systemd user directory (usually `~/.config/systemd/user`).
-2. To configure Parity, write a `/etc/parity/config.toml` config file, see [Configuring Parity](https://paritytech.github.io/wiki/Configuring-Parity) for details.
+`systemd` user directory (usually `~/.config/systemd/user`).
+2. To configure Parity Ethereum, write a `/etc/parity/config.toml` config file, see [Configuring Parity Ethereum](https://paritytech.github.io/wiki/Configuring-Parity) for details.
+
+## Parity Ethereum toolchain
+
+In addition to the Parity Ethereum client, there are additional tools in this repository available:
+
+- [evmbin](https://github.com/paritytech/parity-ethereum/blob/master/evmbin/) - EVM implementation for Parity Ethereum.
+- [ethabi](https://github.com/paritytech/ethabi) - Parity Ethereum function calls encoding.
+- [ethstore](https://github.com/paritytech/parity-ethereum/blob/master/ethstore/) - Parity Ethereum key management.
+- [ethkey](https://github.com/paritytech/parity-ethereum/blob/master/ethkey/) - Parity Ethereum keys generator.
+- [whisper](https://github.com/paritytech/parity-ethereum/blob/master/whisper/) - Implementation of Whisper-v2 PoC.
+
+## Join the chat!
+
+Questions? Get in touch with us on Gitter:
+[![Gitter: Parity](https://img.shields.io/badge/gitter-parity-4AB495.svg)](https://gitter.im/paritytech/parity)
+[![Gitter: Parity.js](https://img.shields.io/badge/gitter-parity.js-4AB495.svg)](https://gitter.im/paritytech/parity.js)
+[![Gitter: Parity/Miners](https://img.shields.io/badge/gitter-parity/miners-4AB495.svg)](https://gitter.im/paritytech/parity/miners)
+[![Gitter: Parity-PoA](https://img.shields.io/badge/gitter-parity--poa-4AB495.svg)](https://gitter.im/paritytech/parity-poa)
+
+Alternatively, join our community on Matrix:
+[![Riot: +Parity](https://img.shields.io/badge/riot-%2Bparity%3Amatrix.parity.io-orange.svg)](https://riot.im/app/#/group/+parity:matrix.parity.io)
+
+## Documentation
+
+Official website: https://parity.io
+
+Be sure to [check out our wiki](https://wiki.parity.io) for more information.
--- a/docker/README.md
+++ b/docker/README.md
@@ -1,3 +0,0 @@
-Usage
-
-```docker build -f docker/ubuntu/Dockerfile --tag ethcore/parity:branch_or_tag_name .```
--- a/docker/alpine/Dockerfile
+++ b/docker/alpine/Dockerfile
@@ -1,29 +0,0 @@
-FROM alpine:edge
-
-WORKDIR /build
-
-# install tools and dependencies
-RUN apk add --no-cache gcc musl-dev pkgconfig g++ make curl \
-						eudev-dev rust cargo git file binutils \
-						libusb-dev linux-headers perl cmake
-
-# show backtraces
-ENV RUST_BACKTRACE 1
-
-# show tools
-RUN rustc -vV && \
-cargo -V && \
-gcc -v &&\
-g++ -v
-
-# build parity
-ADD . /build/parity
-RUN cd parity && \
-	cargo build --release --verbose && \
-	ls /build/parity/target/release/parity && \
-	strip /build/parity/target/release/parity
-
-RUN file /build/parity/target/release/parity
-
-EXPOSE 8080 8545 8180
-ENTRYPOINT ["/build/parity/target/release/parity"]
--- a/docker/android/Dockerfile
+++ b/docker/android/Dockerfile
@@ -1,61 +0,0 @@
-FROM ubuntu:xenial
-LABEL maintainer="Parity Technologies <devops@parity.io>"
-
-RUN apt-get update && \
-    apt-get install -yq sudo curl file build-essential wget git g++ cmake pkg-config bison flex \
-                        unzip lib32stdc++6 lib32z1 python autotools-dev automake autoconf libtool \
-                        gperf xsltproc docbook-xsl
-
-# Rust & Cargo
-RUN curl https://sh.rustup.rs -sSf | sh -s -- -y
-ENV PATH /root/.cargo/bin:$PATH
-RUN rustup toolchain install stable
-RUN rustup target add --toolchain stable arm-linux-androideabi
-RUN rustup target add --toolchain stable armv7-linux-androideabi
-
-# Android NDK and toolchain
-RUN cd /usr/local && \
-    wget -q https://dl.google.com/android/repository/android-ndk-r16b-linux-x86_64.zip && \
-    unzip -q android-ndk-r16b-linux-x86_64.zip && \
-    rm android-ndk-r16b-linux-x86_64.zip
-ENV NDK_HOME /usr/local/android-ndk-r16b
-RUN /usr/local/android-ndk-r16b/build/tools/make-standalone-toolchain.sh \
-    --arch=arm --install-dir=/opt/ndk-standalone --stl=libc++ --platform=android-26
-ENV PATH $PATH:/opt/ndk-standalone/bin
-
-# Compiling libudev for Android
-# This is the most hacky part of the process, as we need to apply a patch and pass specific
-# options that the compiler environment doesn't define.
-RUN cd /root && \
-    git clone https://github.com/gentoo/eudev.git
-ADD libudev.patch /root
-RUN cd /root/eudev && \
-    git checkout 83d918449f22720d84a341a05e24b6d109e6d3ae && \
-    ./autogen.sh && \
-    ./configure --disable-introspection --disable-programs --disable-hwdb \
-                --host=arm-linux-androideabi --prefix=/opt/ndk-standalone/sysroot/usr/ \
-                --enable-shared=false CC=arm-linux-androideabi-clang \
-                CFLAGS="-D LINE_MAX=2048 -D RLIMIT_NLIMITS=15 -D IPTOS_LOWCOST=2 -std=gnu99" \
-                CXX=arm-linux-androideabi-clang++ && \
-    git apply - < /root/libudev.patch && \
-    make && \
-    make install
-RUN rm -rf /root/eudev
-RUN rm /root/libudev.patch
-
-# Rust-related configuration
-ADD cargo-config.toml /root/.cargo/config
-ENV ARM_LINUX_ANDROIDEABI_OPENSSL_DIR /opt/ndk-standalone/sysroot/usr
-ENV ARMV7_LINUX_ANDROIDEABI_OPENSSL_DIR /opt/ndk-standalone/sysroot/usr
-ENV CC_arm_linux_androideabi arm-linux-androideabi-clang
-ENV CC_armv7_linux_androideabi arm-linux-androideabi-clang
-ENV CXX_arm_linux_androideabi arm-linux-androideabi-clang++
-ENV CXX_armv7_linux_androideabi arm-linux-androideabi-clang++
-ENV AR_arm_linux_androideabi arm-linux-androideabi-ar
-ENV AR_armv7_linux_androideabi arm-linux-androideabi-ar
-ENV CFLAGS_arm_linux_androideabi -std=gnu11 -fPIC -D OS_ANDROID
-ENV CFLAGS_armv7_linux_androideabi -std=gnu11 -fPIC -D OS_ANDROID
-ENV CXXFLAGS_arm_linux_androideabi -std=gnu++11 -fPIC -fexceptions -frtti -static-libstdc++ -D OS_ANDROID
-ENV CXXFLAGS_armv7_linux_androideabi -std=gnu++11 -fPIC -fexceptions -frtti -static-libstdc++ -D OS_ANDROID
-ENV CXXSTDLIB_arm_linux_androideabi ""
-ENV CXXSTDLIB_armv7_linux_androideabi ""
--- a/docker/android/cargo-config.toml
+++ b/docker/android/cargo-config.toml
@@ -1,9 +0,0 @@
-[target.armv7-linux-androideabi]
-linker = "arm-linux-androideabi-clang"
-ar = "arm-linux-androideabi-ar"
-rustflags = ["-C", "link-arg=-lc++_static", "-C", "link-arg=-lc++abi", "-C", "link-arg=-landroid_support"]
-
-[target.arm-linux-androideabi]
-linker = "arm-linux-androideabi-clang"
-ar = "arm-linux-androideabi-ar"
-rustflags = ["-C", "link-arg=-lc++_static", "-C", "link-arg=-lc++abi", "-C", "link-arg=-landroid_support"]
--- a/docker/android/libudev.patch
+++ b/docker/android/libudev.patch
@@ -1,216 +0,0 @@
-diff --git a/src/collect/collect.c b/src/collect/collect.c
-index 2cf1f00..b24f26b 100644
--- a/src/collect/collect.c
-+++ b/src/collect/collect.c
-@@ -84,7 +84,7 @@ static void usage(void)
-                "  invoked for each ID in <idlist>) collect returns 0, the\n"
-                "  number of missing IDs otherwise.\n"
-                "  On error a negative number is returned.\n\n"
-               , program_invocation_short_name);
-+               , "parity");
- }
- 
- /*
-diff --git a/src/scsi_id/scsi_id.c b/src/scsi_id/scsi_id.c
-index 8b76d87..7bf3948 100644
--- a/src/scsi_id/scsi_id.c
-+++ b/src/scsi_id/scsi_id.c
-@@ -321,7 +321,7 @@ static void help(void) {
-                "  -u --replace-whitespace          Replace all whitespace by underscores\n"
-                "  -v --verbose                     Verbose logging\n"
-                "  -x --export                      Print values as environment keys\n"
-               , program_invocation_short_name);
-+               , "parity");
- 
- }
- 
-diff --git a/src/shared/hashmap.h b/src/shared/hashmap.h
-index a03ee58..a7c2005 100644
--- a/src/shared/hashmap.h
-+++ b/src/shared/hashmap.h
-@@ -98,10 +98,7 @@ extern const struct hash_ops uint64_hash_ops;
- #if SIZEOF_DEV_T != 8
- unsigned long devt_hash_func(const void *p, const uint8_t hash_key[HASH_KEY_SIZE]) _pure_;
- int devt_compare_func(const void *a, const void *b) _pure_;
-extern const struct hash_ops devt_hash_ops = {
-        .hash = devt_hash_func,
-        .compare = devt_compare_func
-};
-+extern const struct hash_ops devt_hash_ops;
- #else
- #define devt_hash_func uint64_hash_func
- #define devt_compare_func uint64_compare_func
-diff --git a/src/shared/log.c b/src/shared/log.c
-index 4a40996..1496984 100644
--- a/src/shared/log.c
-+++ b/src/shared/log.c
-@@ -335,7 +335,7 @@ static int write_to_syslog(
- 
-         IOVEC_SET_STRING(iovec[0], header_priority);
-         IOVEC_SET_STRING(iovec[1], header_time);
-        IOVEC_SET_STRING(iovec[2], program_invocation_short_name);
-+        IOVEC_SET_STRING(iovec[2], "parity");
-         IOVEC_SET_STRING(iovec[3], header_pid);
-         IOVEC_SET_STRING(iovec[4], buffer);
- 
-@@ -383,7 +383,7 @@ static int write_to_kmsg(
-         char_array_0(header_pid);
- 
-         IOVEC_SET_STRING(iovec[0], header_priority);
-        IOVEC_SET_STRING(iovec[1], program_invocation_short_name);
-+        IOVEC_SET_STRING(iovec[1], "parity");
-         IOVEC_SET_STRING(iovec[2], header_pid);
-         IOVEC_SET_STRING(iovec[3], buffer);
-         IOVEC_SET_STRING(iovec[4], "\n");
-diff --git a/src/udev/udevadm-control.c b/src/udev/udevadm-control.c
-index 6af7163..3271e56 100644
--- a/src/udev/udevadm-control.c
-+++ b/src/udev/udevadm-control.c
-@@ -41,7 +41,7 @@ static void print_help(void) {
-                "  -p --property=KEY=VALUE  Set a global property for all events\n"
-                "  -m --children-max=N      Maximum number of children\n"
-                "     --timeout=SECONDS     Maximum time to block for a reply\n"
-               , program_invocation_short_name);
-+               , "parity");
- }
- 
- static int adm_control(struct udev *udev, int argc, char *argv[]) {
-diff --git a/src/udev/udevadm-info.c b/src/udev/udevadm-info.c
-index 0aec976..a31ac02 100644
--- a/src/udev/udevadm-info.c
-+++ b/src/udev/udevadm-info.c
-@@ -279,7 +279,7 @@ static void help(void) {
-                "  -P --export-prefix          Export the key name with a prefix\n"
-                "  -e --export-db              Export the content of the udev database\n"
-                "  -c --cleanup-db             Clean up the udev database\n"
-               , program_invocation_short_name);
-+               , "parity");
- }
- 
- static int uinfo(struct udev *udev, int argc, char *argv[]) {
-diff --git a/src/udev/udevadm-monitor.c b/src/udev/udevadm-monitor.c
-index 15ded09..b58dd08 100644
--- a/src/udev/udevadm-monitor.c
-+++ b/src/udev/udevadm-monitor.c
-@@ -73,7 +73,7 @@ static void help(void) {
-                "  -u --udev                                Print udev events\n"
-                "  -s --subsystem-match=SUBSYSTEM[/DEVTYPE] Filter events by subsystem\n"
-                "  -t --tag-match=TAG                       Filter events by tag\n"
-               , program_invocation_short_name);
-+               , "parity");
- }
- 
- static int adm_monitor(struct udev *udev, int argc, char *argv[]) {
-diff --git a/src/udev/udevadm-settle.c b/src/udev/udevadm-settle.c
-index 33597bc..b36a504 100644
--- a/src/udev/udevadm-settle.c
-+++ b/src/udev/udevadm-settle.c
-@@ -43,7 +43,7 @@ static void help(void) {
-                "     --version              Show package version\n"
-                "  -t --timeout=SECONDS      Maximum time to wait for events\n"
-                "  -E --exit-if-exists=FILE  Stop waiting if file exists\n"
-               , program_invocation_short_name);
-+               , "parity");
- }
- 
- static int adm_settle(struct udev *udev, int argc, char *argv[]) {
-diff --git a/src/udev/udevadm-test-builtin.c b/src/udev/udevadm-test-builtin.c
-index baaeca9..50ed812 100644
--- a/src/udev/udevadm-test-builtin.c
-+++ b/src/udev/udevadm-test-builtin.c
-@@ -39,7 +39,7 @@ static void help(struct udev *udev) {
-                "  -h --help     Print this message\n"
-                "     --version  Print version of the program\n\n"
-                "Commands:\n"
-               , program_invocation_short_name);
-+               , "parity");
- 
-         udev_builtin_list(udev);
- }
-diff --git a/src/udev/udevadm-test.c b/src/udev/udevadm-test.c
-index 47fd924..a855412 100644
--- a/src/udev/udevadm-test.c
-+++ b/src/udev/udevadm-test.c
-@@ -39,7 +39,7 @@ static void help(void) {
-                "     --version                         Show package version\n"
-                "  -a --action=ACTION                   Set action string\n"
-                "  -N --resolve-names=early|late|never  When to resolve names\n"
-               , program_invocation_short_name);
-+               , "parity");
- }
- 
- static int adm_test(struct udev *udev, int argc, char *argv[]) {
-diff --git a/src/udev/udevadm-trigger.c b/src/udev/udevadm-trigger.c
-index 4dc756a..67787d3 100644
--- a/src/udev/udevadm-trigger.c
-+++ b/src/udev/udevadm-trigger.c
-@@ -92,7 +92,7 @@ static void help(void) {
-                "  -y --sysname-match=NAME           Trigger devices with this /sys path\n"
-                "     --name-match=NAME              Trigger devices with this /dev name\n"
-                "  -b --parent-match=NAME            Trigger devices with that parent device\n"
-               , program_invocation_short_name);
-+               , "parity");
- }
- 
- static int adm_trigger(struct udev *udev, int argc, char *argv[]) {
-diff --git a/src/udev/udevadm.c b/src/udev/udevadm.c
-index 3e57cf6..b03dfaa 100644
--- a/src/udev/udevadm.c
-+++ b/src/udev/udevadm.c
-@@ -62,7 +62,7 @@ static int adm_help(struct udev *udev, int argc, char *argv[]) {
-         printf("%s [--help] [--version] [--debug] COMMAND [COMMAND OPTIONS]\n\n"
-                "Send control commands or test the device manager.\n\n"
-                "Commands:\n"
-               , program_invocation_short_name);
-+               , "parity");
- 
-         for (i = 0; i < ELEMENTSOF(udevadm_cmds); i++)
-                 if (udevadm_cmds[i]->help != NULL)
-@@ -128,7 +128,7 @@ int main(int argc, char *argv[]) {
-                                 goto out;
-                         }
- 
-        fprintf(stderr, "%s: missing or unknown command\n", program_invocation_short_name);
-+        fprintf(stderr, "%s: missing or unknown command\n", "parity");
-         rc = 2;
- out:
-         mac_selinux_finish();
-diff --git a/src/udev/udevd.c b/src/udev/udevd.c
-index cf826c6..4eec0af 100644
--- a/src/udev/udevd.c
-+++ b/src/udev/udevd.c
-@@ -1041,7 +1041,7 @@ static void help(void) {
-                "  -t --event-timeout=SECONDS  Seconds to wait before terminating an event\n"
-                "  -N --resolve-names=early|late|never\n"
-                "                              When to resolve users and groups\n"
-               , program_invocation_short_name);
-+               , "parity");
- }
- 
- static int parse_argv(int argc, char *argv[]) {
-diff --git a/src/v4l_id/v4l_id.c b/src/v4l_id/v4l_id.c
-index 1dce0d5..f65badf 100644
--- a/src/v4l_id/v4l_id.c
-+++ b/src/v4l_id/v4l_id.c
-@@ -49,7 +49,7 @@ int main(int argc, char *argv[]) {
-                         printf("%s [-h,--help] <device file>\n\n"
-                                "Video4Linux device identification.\n\n"
-                                "  -h  Print this message\n"
-                               , program_invocation_short_name);
-+                               , "parity");
-                         return 0;
-                 case '?':
-                         return -EINVAL;
-diff --git a/src/shared/path-util.c b/src/shared/path-util.c
-index 0744563..7151356 100644
--- a/src/shared/path-util.c
-+++ b/src/shared/path-util.c
-@@ -109,7 +109,7 @@ char *path_make_absolute_cwd(const char *p) {
-         if (path_is_absolute(p))
-                 return strdup(p);
- 
-        cwd = get_current_dir_name();
-+        cwd = getcwd(malloc(128), 128);
-         if (!cwd)
-                 return NULL;
- 
--- a/docker/centos/Dockerfile
+++ b/docker/centos/Dockerfile
@@ -1,36 +0,0 @@
-FROM centos:latest
-WORKDIR /build
-
-# install tools and dependencies
-RUN yum -y update&& \
-    yum install -y git make gcc-c++ gcc file binutils cmake
-
-# install rustup
-RUN curl -sSf https://static.rust-lang.org/rustup.sh -o rustup.sh &&\
-ls&&\
- sh rustup.sh --disable-sudo
-
-# show backtraces
-ENV RUST_BACKTRACE 1
-
-# set compiler
-ENV CXX g++
-ENV CC gcc
-
-# show tools
-RUN rustc -vV && \
-cargo -V && \
-gcc -v &&\
-g++ -v
-
-# build parity
-ADD . /build/parity
-RUN cd parity&&\
-    cargo build --release --verbose && \
-	ls /build/parity/target/release/parity &&	\
-	strip /build/parity/target/release/parity
-
-RUN file /build/parity/target/release/parity
-
-EXPOSE 8080 8545 8180
-ENTRYPOINT ["/build/parity/target/release/parity"]
--- a/docker/hub/Dockerfile
+++ b/docker/hub/Dockerfile
@@ -1,65 +0,0 @@
-FROM ubuntu:xenial
-MAINTAINER Parity Technologies <devops@parity.io>
-WORKDIR /build
-#ENV for build TAG
-ARG BUILD_TAG
-ENV BUILD_TAG ${BUILD_TAG:-master}
-RUN echo "Build tag:" $BUILD_TAG
-# install tools and dependencies
-RUN apt-get update && \
-        apt-get install -y --force-yes --no-install-recommends \
-        # make
-        build-essential \
-        # add-apt-repository
-        software-properties-common \
-        make \
-        cmake \
-        curl \
-        wget \
-        git \
-        g++ \
-        gcc \
-        libc6 \
-        libc6-dev \
-        binutils \
-        file \
-        libudev-dev \
-        pkg-config \
-        dpkg-dev \
-        libudev-dev &&\
-# install rustup
- curl https://sh.rustup.rs -sSf | sh -s -- -y && \
-# rustup directory
- PATH=/root/.cargo/bin:$PATH && \
-# show backtraces
- RUST_BACKTRACE=1 && \
-# build parity
-cd /build&&git clone https://github.com/paritytech/parity-ethereum && \
-        cd parity-ethereum && \
-	git pull&& \
-	git checkout $BUILD_TAG && \
-        cargo build --verbose --release --features final && \
-        strip /build/parity-ethereum/target/release/parity && \
- file /build/parity-ethereum/target/release/parity&&mkdir -p /parity&& cp /build/parity-ethereum/target/release/parity /parity&&\
-#cleanup Docker image
- rm -rf /root/.cargo&&rm -rf /root/.multirust&&rm -rf /root/.rustup&&rm -rf /build&&\
- apt-get purge -y  \
-        # make
-        build-essential \
-        # add-apt-repository
-        software-properties-common \
-        make \
-        cmake \
-        curl \
-        wget \
-        git \
-        g++ \
-        gcc \
-        binutils \
-        file \
-        pkg-config \
-        dpkg-dev &&\
- rm -rf /var/lib/apt/lists/*
-# setup ENTRYPOINT
-EXPOSE 8080 8545 8180
-ENTRYPOINT ["/parity/parity"]
--- a/docker/ubuntu/Dockerfile
+++ b/docker/ubuntu/Dockerfile
@@ -1,42 +0,0 @@
-FROM ubuntu:14.04
-WORKDIR /build
-
-# install tools and dependencies
-RUN apt-get update && \
-        apt-get install -y \
-        g++ \
-        build-essential \
-        cmake \
-        curl \
-        git \
-        file \
-        binutils \
-        pkg-config \
-        libudev-dev
-
-# install rustup
-RUN curl https://sh.rustup.rs -sSf | sh -s -- -y
-
-# rustup directory
-ENV PATH /root/.cargo/bin:$PATH
-
-# show backtraces
-ENV RUST_BACKTRACE 1
-
-# show tools
-RUN rustc -vV && \
-cargo -V && \
-gcc -v &&\
-g++ -v
-
-# build parity
-ADD . /build/parity
-RUN cd parity && \
-        cargo build --release --verbose && \
-        ls /build/parity/target/release/parity && \
-        strip /build/parity/target/release/parity
-
-RUN file /build/parity/target/release/parity
-
-EXPOSE 8080 8545 8180
-ENTRYPOINT ["/build/parity/target/release/parity"]
--- a/ethcore/Cargo.toml
+++ b/ethcore/Cargo.toml
@@ -102,6 +102,8 @@ evm-debug-tests = ["evm-debug", "evm/evm-debug-tests"]
 slow-blocks = []
 # Run JSON consensus tests.
 json-tests = ["ethcore-transaction/json-tests", "test-helpers", "tempdir"]
+# Skip JSON consensus tests with pending issues.
+ci-skip-issue = []
 # Run memory/cpu heavy tests.
 test-heavy = []
 # Compile benches
--- a/ethcore/evm/src/evm.rs
+++ b/ethcore/evm/src/evm.rs
@@ -57,7 +57,7 @@ impl Finalize for Result<GasLeft> {

 /// Cost calculation type. For low-gas usage we calculate costs using usize instead of U256
 pub trait CostType: Sized + From<usize> + Copy
-	+ ops::Mul<Output=Self> + ops::Div<Output=Self> + ops::Add<Output=Self> +ops::Sub<Output=Self>
+	+ ops::Mul<Output=Self> + ops::Div<Output=Self> + ops::Add<Output=Self> + ops::Sub<Output=Self>
 	+ ops::Shr<usize, Output=Self> + ops::Shl<usize, Output=Self>
 	+ cmp::Ord + fmt::Debug {
 	/// Converts this cost into `U256`
--- a/ethcore/evm/src/instructions.rs
+++ b/ethcore/evm/src/instructions.rs
@@ -134,6 +134,8 @@ enum_with_from_u8! {
 		RETURNDATASIZE = 0x3d,
 		#[doc = "copy return data buffer to memory"]
 		RETURNDATACOPY = 0x3e,
+		#[doc = "return the keccak256 hash of contract code"]
+		EXTCODEHASH = 0x3f,

 		#[doc = "get hash of most recent complete block"]
 		BLOCKHASH = 0x40,
@@ -326,7 +328,7 @@ enum_with_from_u8! {
 		#[doc = "like CALLCODE but keeps caller's value and sender"]
 		DELEGATECALL = 0xf4,
 		#[doc = "create a new account and set creation address to sha3(sender + sha3(init code)) % 2**160"]
-		CREATE2 = 0xfb,
+		CREATE2 = 0xf5,
 		#[doc = "stop execution and revert state changes. Return output data."]
 		REVERT = 0xfd,
 		#[doc = "like CALL but it does not take value, nor modify the state"]
@@ -492,6 +494,7 @@ lazy_static! {
 		arr[CALLDATALOAD as usize] = Some(InstructionInfo::new("CALLDATALOAD", 1, 1, GasPriceTier::VeryLow));
 		arr[CALLDATASIZE as usize] = Some(InstructionInfo::new("CALLDATASIZE", 0, 1, GasPriceTier::Base));
 		arr[CALLDATACOPY as usize] = Some(InstructionInfo::new("CALLDATACOPY", 3, 0, GasPriceTier::VeryLow));
+		arr[EXTCODEHASH as usize] = Some(InstructionInfo::new("EXTCODEHASH", 1, 1, GasPriceTier::Special));
 		arr[CODESIZE as usize] = Some(InstructionInfo::new("CODESIZE", 0, 1, GasPriceTier::Base));
 		arr[CODECOPY as usize] = Some(InstructionInfo::new("CODECOPY", 3, 0, GasPriceTier::VeryLow));
 		arr[GASPRICE as usize] = Some(InstructionInfo::new("GASPRICE", 0, 1, GasPriceTier::Base));
@@ -591,7 +594,7 @@ lazy_static! {
 		arr[DELEGATECALL as usize] = Some(InstructionInfo::new("DELEGATECALL", 6, 1, GasPriceTier::Special));
 		arr[STATICCALL as usize] = Some(InstructionInfo::new("STATICCALL", 6, 1, GasPriceTier::Special));
 		arr[SUICIDE as usize] = Some(InstructionInfo::new("SUICIDE", 1, 0, GasPriceTier::Special));
-		arr[CREATE2 as usize] = Some(InstructionInfo::new("CREATE2", 3, 1, GasPriceTier::Special));
+		arr[CREATE2 as usize] = Some(InstructionInfo::new("CREATE2", 4, 1, GasPriceTier::Special));
 		arr[REVERT as usize] = Some(InstructionInfo::new("REVERT", 2, 0, GasPriceTier::Zero));
 		arr
 	};
--- a/ethcore/evm/src/interpreter/gasometer.rs
+++ b/ethcore/evm/src/interpreter/gasometer.rs
@@ -125,12 +125,17 @@ impl<Gas: evm::CostType> Gasometer<Gas> {
 				let newval = stack.peek(1);
 				let val = U256::from(&*ext.storage_at(&address)?);

-				let gas = if val.is_zero() && !newval.is_zero() {
-					schedule.sstore_set_gas
+				let gas = if schedule.eip1283 {
+					let orig = U256::from(&*ext.initial_storage_at(&address)?);
+					calculate_eip1283_sstore_gas(schedule, &orig, &val, &newval)
 				} else {
-					// Refund for below case is added when actually executing sstore
-					// !is_zero(&val) && is_zero(newval)
-					schedule.sstore_reset_gas
+					if val.is_zero() && !newval.is_zero() {
+						schedule.sstore_set_gas
+					} else {
+						// Refund for below case is added when actually executing sstore
+						// !is_zero(&val) && is_zero(newval)
+						schedule.sstore_reset_gas
+					}
 				};
 				Request::Gas(Gas::from(gas))
 			},
@@ -143,6 +148,9 @@ impl<Gas: evm::CostType> Gasometer<Gas> {
 			instructions::EXTCODESIZE => {
 				Request::Gas(Gas::from(schedule.extcodesize_gas))
 			},
+			instructions::EXTCODEHASH => {
+				Request::Gas(Gas::from(schedule.extcodehash_gas))
+			},
 			instructions::SUICIDE => {
 				let mut gas = Gas::from(schedule.suicide_gas);

@@ -168,9 +176,8 @@ impl<Gas: evm::CostType> Gasometer<Gas> {
 				Request::GasMem(default_gas, mem_needed(stack.peek(0), stack.peek(1))?)
 			},
 			instructions::SHA3 => {
-				let w = overflowing!(add_gas_usize(Gas::from_u256(*stack.peek(1))?, 31));
-				let words = w >> 5;
-				let gas = Gas::from(schedule.sha3_gas) + (Gas::from(schedule.sha3_word_gas) * words);
+				let words = overflowing!(to_word_size(Gas::from_u256(*stack.peek(1))?));
+				let gas = overflowing!(Gas::from(schedule.sha3_gas).overflow_add(overflowing!(Gas::from(schedule.sha3_word_gas).overflow_mul(words))));
 				Request::GasMem(gas, mem_needed(stack.peek(0), stack.peek(1))?)
 			},
 			instructions::CALLDATACOPY | instructions::CODECOPY | instructions::RETURNDATACOPY => {
@@ -223,9 +230,24 @@ impl<Gas: evm::CostType> Gasometer<Gas> {

 				Request::GasMemProvide(gas, mem, Some(requested))
 			},
-			instructions::CREATE | instructions::CREATE2 => {
+			instructions::CREATE => {
+				let start = stack.peek(1);
+				let len = stack.peek(2);
+
 				let gas = Gas::from(schedule.create_gas);
-				let mem = mem_needed(stack.peek(1), stack.peek(2))?;
+				let mem = mem_needed(start, len)?;
+
+				Request::GasMemProvide(gas, mem, None)
+			},
+			instructions::CREATE2 => {
+				let start = stack.peek(1);
+				let len = stack.peek(2);
+
+				let base = Gas::from(schedule.create_gas);
+				let word = overflowing!(to_word_size(Gas::from_u256(*len)?));
+				let word_gas = overflowing!(Gas::from(schedule.sha3_word_gas).overflow_mul(word));
+				let gas = overflowing!(base.overflow_add(word_gas));
+				let mem = mem_needed(start, len)?;

 				Request::GasMemProvide(gas, mem, None)
 			},
@@ -275,8 +297,8 @@ impl<Gas: evm::CostType> Gasometer<Gas> {
 			},
 			Request::GasMemCopy(gas, mem_size, copy) => {
 				let (mem_gas_cost, new_mem_gas, new_mem_size) = self.mem_gas_cost(schedule, current_mem_size, &mem_size)?;
-				let copy = overflowing!(add_gas_usize(copy, 31)) >> 5;
-				let copy_gas = Gas::from(schedule.copy_gas) * copy;
+				let copy = overflowing!(to_word_size(copy));
+				let copy_gas = overflowing!(Gas::from(schedule.copy_gas).overflow_mul(copy));
 				let gas = overflowing!(gas.overflow_add(copy_gas));
 				let gas = overflowing!(gas.overflow_add(mem_gas_cost));

@@ -303,7 +325,7 @@ impl<Gas: evm::CostType> Gasometer<Gas> {
 		};

 		let current_mem_size = Gas::from(current_mem_size);
-		let req_mem_size_rounded = (overflowing!(mem_size.overflow_add(Gas::from(31 as usize))) >> 5) << 5;
+		let req_mem_size_rounded = overflowing!(to_word_size(*mem_size)) << 5;

 		let (mem_gas_cost, new_mem_gas) = if req_mem_size_rounded > current_mem_size {
 			let new_mem_gas = gas_for_mem(req_mem_size_rounded)?;
@@ -335,6 +357,99 @@ fn add_gas_usize<Gas: evm::CostType>(value: Gas, num: usize) -> (Gas, bool) {
 	value.overflow_add(Gas::from(num))
 }

+#[inline]
+fn to_word_size<Gas: evm::CostType>(value: Gas) -> (Gas, bool) {
+	let (gas, overflow) = add_gas_usize(value, 31);
+	if overflow {
+		return (gas, overflow);
+	}
+
+	(gas >> 5, false)
+}
+
+#[inline]
+fn calculate_eip1283_sstore_gas<Gas: evm::CostType>(schedule: &Schedule, original: &U256, current: &U256, new: &U256) -> Gas {
+	Gas::from(
+		if current == new {
+			// 1. If current value equals new value (this is a no-op), 200 gas is deducted.
+			schedule.sload_gas
+		} else {
+			// 2. If current value does not equal new value
+			if original == current {
+				// 2.1. If original value equals current value (this storage slot has not been changed by the current execution context)
+				if original.is_zero() {
+					// 2.1.1. If original value is 0, 20000 gas is deducted.
+					schedule.sstore_set_gas
+				} else {
+					// 2.1.2. Otherwise, 5000 gas is deducted.
+					schedule.sstore_reset_gas
+
+					// 2.1.2.1. If new value is 0, add 15000 gas to refund counter.
+				}
+			} else {
+				// 2.2. If original value does not equal current value (this storage slot is dirty), 200 gas is deducted. Apply both of the following clauses.
+				schedule.sload_gas
+
+				// 2.2.1. If original value is not 0
+				// 2.2.1.1. If current value is 0 (also means that new value is not 0), remove 15000 gas from refund counter. We can prove that refund counter will never go below 0.
+				// 2.2.1.2. If new value is 0 (also means that current value is not 0), add 15000 gas to refund counter.
+
+				// 2.2.2. If original value equals new value (this storage slot is reset)
+				// 2.2.2.1. If original value is 0, add 19800 gas to refund counter.
+				// 2.2.2.2. Otherwise, add 4800 gas to refund counter.
+			}
+		}
+	)
+}
+
+pub fn handle_eip1283_sstore_clears_refund(ext: &mut vm::Ext, original: &U256, current: &U256, new: &U256) {
+	let sstore_clears_schedule = U256::from(ext.schedule().sstore_refund_gas);
+
+	if current == new {
+		// 1. If current value equals new value (this is a no-op), 200 gas is deducted.
+	} else {
+		// 2. If current value does not equal new value
+		if original == current {
+			// 2.1. If original value equals current value (this storage slot has not been changed by the current execution context)
+			if original.is_zero() {
+				// 2.1.1. If original value is 0, 20000 gas is deducted.
+			} else {
+				// 2.1.2. Otherwise, 5000 gas is deducted.
+				if new.is_zero() {
+					// 2.1.2.1. If new value is 0, add 15000 gas to refund counter.
+					ext.add_sstore_refund(sstore_clears_schedule);
+				}
+			}
+		} else {
+			// 2.2. If original value does not equal current value (this storage slot is dirty), 200 gas is deducted. Apply both of the following clauses.
+
+			if !original.is_zero() {
+				// 2.2.1. If original value is not 0
+				if current.is_zero() {
+					// 2.2.1.1. If current value is 0 (also means that new value is not 0), remove 15000 gas from refund counter. We can prove that refund counter will never go below 0.
+					ext.sub_sstore_refund(sstore_clears_schedule);
+				} else if new.is_zero() {
+					// 2.2.1.2. If new value is 0 (also means that current value is not 0), add 15000 gas to refund counter.
+					ext.add_sstore_refund(sstore_clears_schedule);
+				}
+			}
+
+			if original == new {
+				// 2.2.2. If original value equals new value (this storage slot is reset)
+				if original.is_zero() {
+					// 2.2.2.1. If original value is 0, add 19800 gas to refund counter.
+					let refund = U256::from(ext.schedule().sstore_set_gas - ext.schedule().sload_gas);
+					ext.add_sstore_refund(refund);
+				} else {
+					// 2.2.2.2. Otherwise, add 4800 gas to refund counter.
+					let refund = U256::from(ext.schedule().sstore_reset_gas - ext.schedule().sload_gas);
+					ext.add_sstore_refund(refund);
+				}
+			}
+		}
+	}
+}
+
 #[test]
 fn test_mem_gas_cost() {
 	// given
--- a/ethcore/evm/src/interpreter/mod.rs
+++ b/ethcore/evm/src/interpreter/mod.rs
@@ -186,8 +186,7 @@ impl<Cost: CostType> vm::Vm for Interpreter<Cost> {
 			match result {
 				InstructionResult::JumpToPosition(position) => {
 					if valid_jump_destinations.is_none() {
-						let code_hash = params.code_hash.clone().unwrap_or_else(|| keccak(code.as_ref()));
-						valid_jump_destinations = Some(self.cache.jump_destinations(&code_hash, code));
+						valid_jump_destinations = Some(self.cache.jump_destinations(&params.code_hash, code));
 					}
 					let jump_destinations = valid_jump_destinations.as_ref().expect("jump_destinations are initialized on first jump; qed");
 					let pos = self.verify_jump(position, jump_destinations)?;
@@ -230,8 +229,9 @@ impl<Cost: CostType> Interpreter<Cost> {
 			(instruction == instructions::STATICCALL && !schedule.have_static_call) ||
 			((instruction == instructions::RETURNDATACOPY || instruction == instructions::RETURNDATASIZE) && !schedule.have_return_data) ||
 			(instruction == instructions::REVERT && !schedule.have_revert) ||
-			((instruction == instructions::SHL || instruction == instructions::SHR || instruction == instructions::SAR) && !schedule.have_bitwise_shifting) {
-
+			((instruction == instructions::SHL || instruction == instructions::SHR || instruction == instructions::SAR) && !schedule.have_bitwise_shifting) ||
+			(instruction == instructions::EXTCODEHASH && !schedule.have_extcodehash)
+		{
 			return Err(vm::Error::BadInstruction {
 				instruction: instruction as u8
 			});
@@ -318,6 +318,11 @@ impl<Cost: CostType> Interpreter<Cost> {
 				let endowment = stack.pop_back();
 				let init_off = stack.pop_back();
 				let init_size = stack.pop_back();
+				let address_scheme = match instruction {
+					instructions::CREATE => CreateContractAddress::FromSenderAndNonce,
+					instructions::CREATE2 => CreateContractAddress::FromSenderSaltAndCodeHash(stack.pop_back().into()),
+					_ => unreachable!("instruction can only be CREATE/CREATE2 checked above; qed"),
+				};

 				let create_gas = provided.expect("`provided` comes through Self::exec from `Gasometer::get_gas_cost_mem`; `gas_gas_mem_cost` guarantees `Some` when instruction is `CALL`/`CALLCODE`/`DELEGATECALL`/`CREATE`; this is `CREATE`; qed");

@@ -335,7 +340,6 @@ impl<Cost: CostType> Interpreter<Cost> {
 				}

 				let contract_code = self.mem.read_slice(init_off, init_size);
-				let address_scheme = if instruction == instructions::CREATE { CreateContractAddress::FromSenderAndNonce } else { CreateContractAddress::FromSenderAndCodeHash };

 				let create_result = ext.create(&create_gas.as_u256(), &endowment, contract_code, address_scheme);
 				return match create_result {
@@ -510,8 +514,14 @@ impl<Cost: CostType> Interpreter<Cost> {

 				let current_val = U256::from(&*ext.storage_at(&address)?);
 				// Increase refund for clear
-				if !self.is_zero(&current_val) && self.is_zero(&val) {
-					ext.inc_sstore_clears();
+				if ext.schedule().eip1283 {
+					let original_val = U256::from(&*ext.initial_storage_at(&address)?);
+					gasometer::handle_eip1283_sstore_clears_refund(ext, &original_val, &current_val, &val);
+				} else {
+					if !current_val.is_zero() && val.is_zero() {
+						let sstore_clears_schedule = U256::from(ext.schedule().sstore_refund_gas);
+						ext.add_sstore_refund(sstore_clears_schedule);
+					}
 				}
 				ext.set_storage(address, H256::from(&val))?;
 			},
@@ -568,9 +578,14 @@ impl<Cost: CostType> Interpreter<Cost> {
 			},
 			instructions::EXTCODESIZE => {
 				let address = u256_to_address(&stack.pop_back());
-				let len = ext.extcodesize(&address)?;
+				let len = ext.extcodesize(&address)?.unwrap_or(0);
 				stack.push(U256::from(len));
 			},
+			instructions::EXTCODEHASH => {
+				let address = u256_to_address(&stack.pop_back());
+				let hash = ext.extcodehash(&address)?.unwrap_or_else(H256::zero);
+				stack.push(U256::from(hash));
+			},
 			instructions::CALLDATACOPY => {
 				Self::copy_data_to_memory(&mut self.mem, stack, params.data.as_ref().map_or_else(|| &[] as &[u8], |d| &*d as &[u8]));
 			},
@@ -591,7 +606,11 @@ impl<Cost: CostType> Interpreter<Cost> {
 			instructions::EXTCODECOPY => {
 				let address = u256_to_address(&stack.pop_back());
 				let code = ext.extcode(&address)?;
-				Self::copy_data_to_memory(&mut self.mem, stack, &code);
+				Self::copy_data_to_memory(
+					&mut self.mem,
+					stack,
+					code.as_ref().map(|c| &(*c)[..]).unwrap_or(&[])
+				);
 			},
 			instructions::GASPRICE => {
 				stack.push(params.gas_price.clone());
--- a/ethcore/evm/src/interpreter/shared_cache.rs
+++ b/ethcore/evm/src/interpreter/shared_cache.rs
@@ -50,17 +50,22 @@ impl SharedCache {
 	}

 	/// Get jump destinations bitmap for a contract.
-	pub fn jump_destinations(&self, code_hash: &H256, code: &[u8]) -> Arc<BitSet> {
-		if code_hash == &KECCAK_EMPTY {
-			return Self::find_jump_destinations(code);
-		}
+	pub fn jump_destinations(&self, code_hash: &Option<H256>, code: &[u8]) -> Arc<BitSet> {
+		if let Some(ref code_hash) = code_hash {
+			if code_hash == &KECCAK_EMPTY {
+				return Self::find_jump_destinations(code);
+			}

-		if let Some(d) = self.jump_destinations.lock().get_mut(code_hash) {
-			return d.0.clone();
+			if let Some(d) = self.jump_destinations.lock().get_mut(code_hash) {
+				return d.0.clone();
+			}
 		}

 		let d = Self::find_jump_destinations(code);
-		self.jump_destinations.lock().insert(code_hash.clone(), Bits(d.clone()));
+
+		if let Some(ref code_hash) = code_hash {
+			self.jump_destinations.lock().insert(*code_hash, Bits(d.clone()));
+		}

 		d
 	}
--- a/ethcore/evm/src/tests.rs
+++ b/ethcore/evm/src/tests.rs
@@ -716,7 +716,7 @@ fn test_jumps(factory: super::Factory) {
 		test_finalize(vm.exec(params, &mut ext)).unwrap()
 	};

-	assert_eq!(ext.sstore_clears, 1);
+	assert_eq!(ext.sstore_clears, U256::from(ext.schedule.sstore_refund_gas));
 	assert_store(&ext, 0, "0000000000000000000000000000000000000000000000000000000000000000"); // 5!
 	assert_store(&ext, 1, "0000000000000000000000000000000000000000000000000000000000000078"); // 5!
 	assert_eq!(gas_left, U256::from(54_117));
@@ -746,6 +746,7 @@ fn test_calls(factory: super::Factory) {

 	assert_set_contains(&ext.calls, &FakeCall {
 		call_type: FakeCallType::Call,
+		create_scheme: None,
 		gas: U256::from(2556),
 		sender_address: Some(address.clone()),
 		receive_address: Some(code_address.clone()),
@@ -755,6 +756,7 @@ fn test_calls(factory: super::Factory) {
 	});
 	assert_set_contains(&ext.calls, &FakeCall {
 		call_type: FakeCallType::Call,
+		create_scheme: None,
 		gas: U256::from(2556),
 		sender_address: Some(address.clone()),
 		receive_address: Some(address.clone()),
--- a/ethcore/light/src/client/mod.rs
+++ b/ethcore/light/src/client/mod.rs
@@ -127,9 +127,6 @@ pub trait LightChainClient: Send + Sync {
 	/// Get the `i`th CHT root.
 	fn cht_root(&self, i: usize) -> Option<H256>;

-	/// Get the EIP-86 transition block number.
-	fn eip86_transition(&self) -> BlockNumber;
-
 	/// Get a report of import activity since the last call.
 	fn report(&self) -> ClientReport;
 }
@@ -585,10 +582,6 @@ impl<T: ChainDataFetcher> LightChainClient for Client<T> {
 		Client::cht_root(self, i)
 	}

-	fn eip86_transition(&self) -> BlockNumber {
-		self.engine().params().eip86_transition
-	}
-
 	fn report(&self) -> ClientReport {
 		Client::report(self)
 	}
--- a/ethcore/res/ethereum/byzantium_test.json
+++ b/ethcore/res/ethereum/byzantium_test.json
@@ -6,10 +6,10 @@
 				"minimumDifficulty": "0x020000",
 				"difficultyBoundDivisor": "0x0800",
 				"durationLimit": "0x0d",
-				"blockReward": "0x4563918244F40000",
+				"blockReward": "0x29A2241AF62C0000",
 				"homesteadTransition": "0x0",
-				"eip649Reward": "0x29A2241AF62C0000",
 				"eip100bTransition": "0x0",
+				"eip649Reward": "0x29A2241AF62C0000",
 				"eip649Transition": "0x0"
 			}
 		}
--- a/ethcore/res/ethereum/classic.json
+++ b/ethcore/res/ethereum/classic.json
@@ -31,8 +31,7 @@
 		"eip161abcTransition": "0x7fffffffffffffff",
 		"eip161dTransition": "0x7fffffffffffffff",
 		"eip155Transition": 3000000,
-		"eip98Transition": "0x7fffffffffffff",
-		"eip86Transition": "0x7fffffffffffff"
+		"eip98Transition": "0x7fffffffffffff"
 	},
 	"genesis": {
 		"seal": {
--- a/ethcore/res/ethereum/constantinople_test.json
+++ b/ethcore/res/ethereum/constantinople_test.json
@@ -1,16 +1,18 @@
 {
-	"name": "Byzantium (Test)",
+	"name": "Constantinople (test)",
 	"engine": {
 		"Ethash": {
 			"params": {
 				"minimumDifficulty": "0x020000",
 				"difficultyBoundDivisor": "0x0800",
 				"durationLimit": "0x0d",
-				"blockReward": "0x4563918244F40000",
+				"blockReward": "0x29A2241AF62C0000",
 				"homesteadTransition": "0x0",
-				"eip649Reward": "0x29A2241AF62C0000",
 				"eip100bTransition": "0x0",
-				"eip649Transition": "0x0"
+				"eip649Transition": "0x5",
+				"eip649Reward": "0x1BC16D674EC80000",
+				"eip1234Transition": "0x5",
+				"eip1234Reward": "0x1BC16D674EC80000"
 			}
 		}
 	},
@@ -29,11 +31,14 @@
 		"eip161abcTransition": "0x0",
 		"eip161dTransition": "0x0",
 		"eip140Transition": "0x0",
-		"eip210Transition": "0x0",
 		"eip211Transition": "0x0",
 		"eip214Transition": "0x0",
 		"eip155Transition": "0x0",
-		"eip658Transition": "0x0"
+		"eip658Transition": "0x0",
+		"eip145Transition": "0x0",
+		"eip1014Transition": "0x0",
+		"eip1052Transition": "0x0",
+		"eip1283Transition": "0x0"
 	},
 	"genesis": {
 		"seal": {
@@ -54,9 +59,9 @@
 		"0000000000000000000000000000000000000002": { "balance": "1", "builtin": { "name": "sha256", "pricing": { "linear": { "base": 60, "word": 12 } } } },
 		"0000000000000000000000000000000000000003": { "balance": "1", "builtin": { "name": "ripemd160", "pricing": { "linear": { "base": 600, "word": 120 } } } },
 		"0000000000000000000000000000000000000004": { "balance": "1", "builtin": { "name": "identity", "pricing": { "linear": { "base": 15, "word": 3 } } } },
-		"0000000000000000000000000000000000000005": { "builtin": { "name": "modexp", "activate_at": "0x00", "pricing": { "modexp": { "divisor": 100 } } } },
+		"0000000000000000000000000000000000000005": { "builtin": { "name": "modexp", "activate_at": "0x00", "pricing": { "modexp": { "divisor": 20 } } } },
 		"0000000000000000000000000000000000000006": { "builtin": { "name": "alt_bn128_add", "activate_at": "0x00", "pricing": { "linear": { "base": 500, "word": 0 } } } },
-		"0000000000000000000000000000000000000007": { "builtin": { "name": "alt_bn128_mul", "activate_at": "0x00", "pricing": { "linear": { "base": 2000, "word": 0 } } } },
+		"0000000000000000000000000000000000000007": { "builtin": { "name": "alt_bn128_mul", "activate_at": "0x00", "pricing": { "linear": { "base": 40000, "word": 0 } } } },
 		"0000000000000000000000000000000000000008": { "builtin": { "name": "alt_bn128_pairing", "activate_at": "0x00", "pricing": { "alt_bn128_pairing": { "base": 100000, "pair": 80000 } } } }
 	}
 }
--- a/ethcore/res/ethereum/easthub.json
+++ b/ethcore/res/ethereum/easthub.json
@@ -27,8 +27,7 @@
 		"eip155Transition": "0x0",
 		"eip161abcTransition": "0x7fffffffffffffff",
 		"eip161dTransition": "0x7fffffffffffffff",
-		"eip98Transition": "0x7fffffffffffff",
-		"eip86Transition": "0x7fffffffffffff"
+		"eip98Transition": "0x7fffffffffffff"
 	},
 	"genesis": {
 		"seal": {
--- a/ethcore/res/ethereum/eip150_test.json
+++ b/ethcore/res/ethereum/eip150_test.json
@@ -23,7 +23,6 @@
 		"eip161abcTransition": "0x7fffffffffffffff",
 		"eip161dTransition": "0x7fffffffffffffff",
 		"eip98Transition": "0x7fffffffffffffff",
-		"eip86Transition": "0x7fffffffffffffff",
 		"eip155Transition": "0x7fffffffffffffff",
 		"maxCodeSize": 24576,
 		"maxCodeSizeTransition": "0x7fffffffffffffff"
--- a/ethcore/res/ethereum/eip161_test.json
+++ b/ethcore/res/ethereum/eip161_test.json
@@ -23,8 +23,7 @@
 		"eip161abcTransition": "0x0",
 		"eip161dTransition": "0x0",
 		"eip98Transition": "0x7fffffffffffffff",
-		"eip86Transition": "0x7fffffffffffffff",
-		"eip155Transition": "0x7fffffffffffffff",
+		"eip155Transition": "0x0",
 		"maxCodeSize": 24576,
 		"maxCodeSizeTransition": "0x0"
 	},
--- a/ethcore/res/ethereum/eip210_test.json
+++ b/ethcore/res/ethereum/eip210_test.json
@@ -0,0 +1,54 @@
+{
+	"name": "EIP210 (test)",
+	"engine": {
+		"Ethash": {
+			"params": {
+				"minimumDifficulty": "0x020000",
+				"difficultyBoundDivisor": "0x0800",
+				"durationLimit": "0x0d",
+				"blockReward": "0x4563918244F40000",
+				"homesteadTransition": "0x0"
+			}
+		}
+	},
+	"params": {
+		"gasLimitBoundDivisor": "0x0400",
+		"registrar" : "0xc6d9d2cd449a754c494264e1809c50e34d64562b",
+		"accountStartNonce": "0x00",
+		"maximumExtraDataSize": "0x20",
+		"minGasLimit": "0x1388",
+		"networkID" : "0x1",
+		"maxCodeSize": 24576,
+		"maxCodeSizeTransition": "0x0",
+		"eip98Transition": "0xffffffffffffffff",
+		"eip150Transition": "0x0",
+		"eip160Transition": "0x0",
+		"eip161abcTransition": "0x0",
+		"eip161dTransition": "0x0",
+		"eip210Transition": "0x0"
+	},
+	"genesis": {
+		"seal": {
+			"ethereum": {
+				"nonce": "0x0000000000000042",
+				"mixHash": "0x0000000000000000000000000000000000000000000000000000000000000000"
+			}
+		},
+		"difficulty": "0x400000000",
+		"author": "0x0000000000000000000000000000000000000000",
+		"timestamp": "0x00",
+		"parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
+		"extraData": "0x11bbe8db4e347b4e8c937c1c8370e4b5ed33adb3db69cbdb7a38e1e50b1b82fa",
+		"gasLimit": "0x1388"
+	},
+	"accounts": {
+		"0000000000000000000000000000000000000001": { "balance": "1", "builtin": { "name": "ecrecover", "pricing": { "linear": { "base": 3000, "word": 0 } } } },
+		"0000000000000000000000000000000000000002": { "balance": "1", "builtin": { "name": "sha256", "pricing": { "linear": { "base": 60, "word": 12 } } } },
+		"0000000000000000000000000000000000000003": { "balance": "1", "builtin": { "name": "ripemd160", "pricing": { "linear": { "base": 600, "word": 120 } } } },
+		"0000000000000000000000000000000000000004": { "balance": "1", "builtin": { "name": "identity", "pricing": { "linear": { "base": 15, "word": 3 } } } },
+		"0000000000000000000000000000000000000005": { "builtin": { "name": "modexp", "activate_at": "0x00", "pricing": { "modexp": { "divisor": 100 } } } },
+		"0000000000000000000000000000000000000006": { "builtin": { "name": "alt_bn128_add", "activate_at": "0x00", "pricing": { "linear": { "base": 500, "word": 0 } } } },
+		"0000000000000000000000000000000000000007": { "builtin": { "name": "alt_bn128_mul", "activate_at": "0x00", "pricing": { "linear": { "base": 2000, "word": 0 } } } },
+		"0000000000000000000000000000000000000008": { "builtin": { "name": "alt_bn128_pairing", "activate_at": "0x00", "pricing": { "alt_bn128_pairing": { "base": 100000, "pair": 80000 } } } }
+	}
+}
--- a/ethcore/res/ethereum/ellaism.json
+++ b/ethcore/res/ethereum/ellaism.json
@@ -29,7 +29,6 @@
 		"eip161dTransition": "0x7fffffffffffffff",
 		"eip155Transition": "0x0",
 		"eip98Transition": "0x7fffffffffffff",
-		"eip86Transition": "0x7fffffffffffff",
 		"wasmActivationTransition": 2000000,
 		"eip140Transition": 2000000,
 		"eip211Transition": 2000000,
--- a/ethcore/res/ethereum/expanse.json
+++ b/ethcore/res/ethereum/expanse.json
@@ -38,7 +38,6 @@
 		"eip161abcTransition": "0x927C0",
 		"eip161dTransition": "0x927C0",
 		"eip98Transition": "0x7fffffffffffff",
-		"eip86Transition": "0x7fffffffffffff",
 		"eip155Transition": "0x927C0",
 		"eip140Transition": "0xC3500",
 		"eip211Transition": "0xC3500",
--- a/ethcore/res/ethereum/foundation.json
+++ b/ethcore/res/ethereum/foundation.json
@@ -150,7 +150,6 @@
 		"eip161dTransition": 2675000,
 		"eip155Transition": 2675000,
 		"eip98Transition": "0x7fffffffffffff",
-		"eip86Transition": "0x7fffffffffffff",
 		"maxCodeSize": 24576,
 		"maxCodeSizeTransition": 2675000,
 		"eip140Transition": 4370000,
@@ -174,8 +173,8 @@
 		"stateRoot": "0xd7f8974fb5ac78d9ac099b9ad5018bedc2ce0a72dad1827a1709da30580f0544"
 	},
 	"hardcodedSync": 	{
-    "header": "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",
-		"totalDifficulty": "6255555800944520547241",
+		"header": "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",
+		"totalDifficulty": "7128515864594819065361",
 		"CHTs": [
 			"0x0eb474b7721727204978e92e27d31cddff56471911e424a4c8271c35f9c982cc",
 			"0xe10e94515fb5ffb7ffa9bf50db4a959b3f50c2ff75e0b8bd5f5e038749e52a11",
@@ -3213,7 +3212,137 @@
 			"0xf344c0cf6516f0fa6617e48076726aefbdaaf5a31f67ad8199bc3f6e426bf904",
 			"0x3f3d2d33f36ba9009e9a72f3f5bbcb5df5392a19fc7afc8d37823aaf52b03477",
 			"0x346a89411f090d559ff90e670bf0a385b1b09f117fc9ffa18b09d3b6d5d8e45c",
-			"0x5bc5689e2b4572b8ceea472cc7827e22cbfd018920beebf5c5b25f65f5cd5357"
+			"0x5bc5689e2b4572b8ceea472cc7827e22cbfd018920beebf5c5b25f65f5cd5357",
+			"0xda418efcaa0076f77e4d2f0c57fc32fa67179a5631d9df52d56497113d0e87af",
+			"0x5a8050832e835202695129f6f384652827e61ea5f1be7ff300183201d8bd6b4d",
+			"0xd9f444c382da42c310bd2f05955187163ae7b224e5efd44ab95af332e197d374",
+			"0x9ef2c5bad361117eedbc2adcb72a2ef5eba4caf3a99a0cbb2a65a94d185e48ae",
+			"0x7e3e089bc46b00a4174d90003379c382ab5bd84d092b9c4db3189d2bdc24f00b",
+			"0x94f50fb12eed909d251fe69adb1a1f214776cb029d487360b55c3a2abb663d7e",
+			"0xd3e1f4244dea40d0741255db2dae72103e263390e0ccfdefcbb2da59ecc5ec9f",
+			"0x6808bf0cb7d4b677527de762b6db8ddf74a1b272349f34f44505912bd95d62f3",
+			"0xbf7672ac474b5b849bc086ff8455216f015c8fc7660436dee153522ef6991c04",
+			"0xe79d27a369cdd5455ddbc6bd9158cd1870aa895b3c3971d07f1555b95ed02ac3",
+			"0xfa9e20a36c11b0dfbf7e9c62872a6423f5460dfd18e447481461a41176678262",
+			"0xaafb6c407910341bedc82c0f260cdef75ce5653f644b93a465cb990247a32986",
+			"0x5058e655e0c179e6c20f48fbd08c2f34f9341f6c07972ff40f55bfabbc783b12",
+			"0x28d2e7c852de8602a764ff693b6881af18ddadd67fc7eff481f48ac20ebf32f6",
+			"0xf82e09e7916f61b5cfdc3dcf193bf9d535f2b33f93a06c90fbdc78b3aac6b7ef",
+			"0x626f3cca9e1a9e5e123e34485c8697c758ffc32213a727665065dd6abd2babe5",
+			"0xb7f1c07f673d903daa61dec649eb12286a7a0568ee36ecfb1023ec41427c8dd0",
+			"0x8d1d42bfe88dbe4c621cf68d380dc57e7768121a815546bb4aab29b7486da9ee",
+			"0x79835acd7266bce85978f481aa3c58f3bab9106d72892df8579e472dc95c6899",
+			"0x0911c9c804bbe9be0aebab6c92f5b71a893f72a9d0cd35a51b0e8cd19ab0c02a",
+			"0x7fd2eff10936d8d12fd9a1c6d27e77cbec4e48253465eb7e65876134ff60c8ec",
+			"0xc739ad4255415e2831c6996673f3d02dc79f6e6d6822f7dee23bff5b94833c3a",
+			"0x2559faafbae0852fe5a1c924f0e4f6ccdf4fd22f483148b3672a3e7b3692b669",
+			"0xca37f0aa3d375dbddc0b426c9564fe68f10b0a4cbbf1ab87f97b27b44878f2fb",
+			"0x00ba40205d1bd46ad5b5e73cd5b1f3418bd892586d5a4647ac9a6d158f15bd93",
+			"0xfa6d25c829299535e6b80af81a2416d10ed6903117e73c656b979a5f5abe3ee0",
+			"0xfd82d8944315cfb228a8fa416c18ff82cbd8869c3babbd3389dca6dd66797785",
+			"0xd8834cc29788cb40ec901725419df8c031a13e190756a6352696de870eaf4671",
+			"0xdf6843a52bf55e0f4404e7bdf144bb17d5c47a72ef9482e712090ac9730a7f52",
+			"0x4c2c562f835966c72985f7cca89a3b1a7b0d4cb04623dc96e337daa35a2f5925",
+			"0x49d2afd87e83a04059dbf3ef4e2598b8d0c495ab1cf91ed3004e16a608e910c2",
+			"0x5be64774739c001c239efae1ce9f2a5706cc6e3054ddf24b03c09358f2f4852f",
+			"0x678f789dc8c409653b36f4d2015338165d3bc6a73f2a77ebfe438676b8412d7a",
+			"0xf87c8fbf02d8e84cf72680e6b9a8b8be39fbae9f1eb1047c536d77535494a301",
+			"0xe2428b952d2c6d60d4925f56b3d8227cd6bc608da2c1b20264befd8b1ad89454",
+			"0x561a95eb50c663462bb8af3aab336bd745b0571746b10fefa791bc11be777763",
+			"0x6945f40e3499d2769ceecf499c701015d93fddb607720b18dbbd5a6a2aa46639",
+			"0x9c35b0367a2b82270d64f11c5299336b21b9f454077dcf7af3b2e434677a31b6",
+			"0x454dc6bb2443509381e478f1836cb36808e2ecd1a9944072056c292b710072f4",
+			"0x0c80566f34a46477592560a883a9c01fa393f7a2c9dbb28a54e46a5c017e8596",
+			"0xeff6a1255090509eccfdea2e591516886c91191f1f02eaae4808ac95009086fc",
+			"0x37cf60888e5ec75841e7f0533feef7200185a1c9f3253073216d83923c864829",
+			"0xb169ebb9e418809a96529835bc293782e4fc6310dba450afe3e95a7abdf7cc01",
+			"0xa3c8d5c71ce0477a247f56bfe95272ea07f0b7f10a8526b6e3ff9a8de8faa9ab",
+			"0x2bf18db4ee84bafbbabaf05d1d4d383c0d5fc91be6ae902334496996eb3a8e48",
+			"0x6c116f0d5809a2c28351a737ef3dbd1808685e1fd656e37df6b6e524aa82c918",
+			"0x21e2c8e019c687fdb360c9bdd4e3a5133488cd2e0365aee3b823120734aa6f27",
+			"0x20c9a1db9de894ab4f576265da25f391b32c0805c3da76fbfdd0aaf300f88a39",
+			"0x23ef1f43af87be7396449fc1f89d9766c59e8adf2660812293c65a27482ddb8e",
+			"0x04a82d3a4a5e7f2507688ecdcdc300d7fb97aa8be92a671d7d42c0b60fa4532b",
+			"0x99e204c42afd6d4040faad384517d99bd0e077b03310d32223234d2251d6a07c",
+			"0xe342c0c4295665b9e25773fc9998e18c460e723d0a14efdb59c19b27b9c7011b",
+			"0xb654b1b8ede0d54a605cda54b4635d2b3c2bb8efd01ebd416e52cc87b590d4f3",
+			"0x5daabc41eeb6de98336411a03ec0323995e81549941cf32b7e15c765d1b7b39e",
+			"0x5103fc7f0fc6df43fb081b580bb01476f2b1cbde73e4d0f9d1fa6d8427fae789",
+			"0xe2ecf5daba51d2f7b22106033fc43f956bd1db0c5ad02bd941bd3d2b96ca21c5",
+			"0xf152bce5c6d1efb7e22cde72d6b8ca37f556ffb686a13770c5fab46e04837c92",
+			"0x306007d8091caa5baaa78643307f5abf9a5f03996fc072a9016ba6b487b2017c",
+			"0xf57308d0c02c6b8e2416c070554c7e29911fa84ef4cf2d934e2322ca262e987c",
+			"0xb234fe7433d7fd71fe0c6dfc834e4bcbf84a261b95760a6c4eb67d222b9ff392",
+			"0x753059f3405f60da3aa7cd1aa0cbcfa4d5ef4f2a6ed34b853b2c5ab2181fd383",
+			"0x096c6630e821816d9f4bd83fbe0ccfd223282f34aae5a49f969ba30b98c324c3",
+			"0xd3eec9dedb057fbc839c474fc99cb54d89f3f47d896e06e758c98f1cd194b61f",
+			"0x0d44cb2a83b9a3fa18daac280cf08b46cc637d705488fd9400cd7300475d0a1c",
+			"0x2e37a3036db99c4cb1c135f5ca6b527fa13b2e80ee421805b7be5d8b16983602",
+			"0x381e0ca505308b7d3a083e60b0f9cb44c89f84942430ec9e4c5571796ab6a8eb",
+			"0x90b04d35906c6f5a59c266c3bce7c2b63cea1486f714e272592ef9ecab25b0ee",
+			"0x9cbea70e760f2ee97537d058d57f395886a2c3a6e769ccd3433b797b8716517b",
+			"0x4e2167846e8d6f0f6495b5f1443f59bea143b63f242e40186fc6429434d1136e",
+			"0xcaa0512739d000bb9783fceb46d0427098886e2b7f2e1140855f1a91f843d5b3",
+			"0xc14df4e379e84591f618e60b5953aa6764146c7822aa1f0e3c2287e20753985a",
+			"0xf4443154c04fd378b2c3812fee84b774b37d6e12778674403fb5c995379df866",
+			"0x1a501c2733cc138fb6ff3716899e08dbcd4d75edc18af8972e8a749e45eaf67a",
+			"0xfc8cb80bb0d0fb490f29aae3067641eef72e9225c558e7e299e0796a2086969d",
+			"0x2b7895550febf03070485c02d521e7ddd80b94b7fe33a60b7d7ea3545b13e7dd",
+			"0xfc4137c3cccd45050b5770a40b2f38c43c62b70b07d17bb6d762b405f3d753dc",
+			"0x86ed22bbbb9fc6600112b91601af4fff56d0ecbe9b3099f91d4477cab8e300f5",
+			"0x2273a60405ffb04bd024d880c79010f18d58e3c8ca0dc82795a0125364679fa6",
+			"0x00dfbfe7be3bb2116d9a603a01ac428c0088a2c1477810cd5d3be0d1bd86beab",
+			"0x7acfb03315585c79e2a47dbe847d24cab0785791f6af7f179fea4f9d6ecb0e0f",
+			"0xbf6a2e20ee1da5eec12b792bbaec2531e20766ba54bac423011c1057215851db",
+			"0xb5e94d1e3ba7363d1d79fb62dedd0b6c26b0485052dd64a7093d41ad2d41b890",
+			"0x9b0cc26f08708814960de8f280ac26d8ed5089a19bcbd2d765059306da22c196",
+			"0x22d8af121d3e395d3cb4f6ee43c06e6292f1b5ffda672d2e40dba69a2885f5ac",
+			"0x04bc174272a57189d76aa17de0f76806e8481f4903575ed8c4df12b042637e0e",
+			"0x06ebd2b6ec4b80280969a92726df5f9cb12d4288b60af617b7040876116656d3",
+			"0x0e9430513e63b5173271c89b1c91af0b4818d5d14a3034e1228c56c94186a109",
+			"0x8dc5422ba98d9e58112b052a00d4b82b1db32e22dd7ff2d845619899bd47f277",
+			"0xde513d40bdbb1e4956b468cece598d77134626a900066b92fb2ecd6fcb5f81c2",
+			"0x90746299ec75af1eb444ad14ac666ee444aa020fac3fb57796516d8772ec8f45",
+			"0xaa91c30c62b24f943ee1eec7586b682289541c0355c2726e44424da8686ca24d",
+			"0x76eb68baae9fb7ed126097f93842dcadfe6e7188d61549d9c0922a9b3ef8e80a",
+			"0x5aa5b4045e7fe71559a6e93f4a89b135eaef38b9a7f3a84e383ab1ff902ceca9",
+			"0x504b78f8fc3646e9722e96a5e97d99f2560d4fa3337fa5faf1cc8c8a05f3520d",
+			"0xffd7a5d7c3b21e8144f7678a9ddc039cf85eb32b09000a600c9f12aa7d6083ed",
+			"0xcbb4010000e96ff0b50b9627dae032bd50782ccbd51af8af7cfcd6cd184675f7",
+			"0xb96fabbdd02371bf4a6a0dc00e3874cf43d47246e27163c910c141b6759a4249",
+			"0x7358419f4e994ff296a37f2e88b238b3de6ba73062073c9467dec52a2df64422",
+			"0xca90be9f190a1fd0548becfa719a6e4763e92de0e4da4283a33b5f7d2886b425",
+			"0xa629364f7d6329b008d9c6a0262327bcc12953aa515cdb7b8817e7fe1d746d46",
+			"0xc5167bd8cac1ea6d14f305c9d4fe075e1875d96353e5236473b6daca5ae9b4fe",
+			"0xaf4ce2490e9504172a4393cf14e691e947c86a0ec7b53416384a5832b213d6c5",
+			"0xbfa4853ef2eecc5d99a90e1abfef37ca10c1f823c1d0ad59a1bb19339861241f",
+			"0xbb5a6584cdc7e4d06ec5fc1514233cc42970f6c332c3a9590978dc9908e58c0a",
+			"0xe69d7a0766db411e504f09a8f39f0583b2869016bbe95f21dba432bbe8b88442",
+			"0x89cf4caaaf200881779f5fa6da8ae91ff1c962045dd0622b5ca65c830d3a9d4f",
+			"0x82d66c631f4c4167e5301d896dbdfe24d8245b1de041fc85eaeb6e35117ed9a0",
+			"0x957907bc93879681d8682a188622f9bf2c7d2595dbe3e2e34bb01711cc4124d1",
+			"0xccb3a3380550586696abd3ac267e85c7516b2b682b3c48f66aca94d57500f3b3",
+			"0xaf56d4650406e70748dc860a7879d8d522599081f8e7011056c976b860703e43",
+			"0x5d96ac1d2dff8a054d880a44f5d45a1bd18aba29085fcd633b0608351ff1876c",
+			"0xe051736dad8b9f93a8f1c13031c2b63249925e152685a2e7ec188ee089861b20",
+			"0x0db8987339e1fae41af5f08e6fa15da5fd80de3431b54e82cf8edbdc792f870e",
+			"0xcc99097678110af2be8dc07da8d642dce928b7d9e2728fe6fef1fe2eaa81a72a",
+			"0x2428c1f94ca57c7913b011a68281eee9ee4855e4ed2c97e34a370e649b21acb1",
+			"0x501ee9580c89b1f67c5b3b69ae5fd1f83852a2f9330f53565bcd04d8a7c0b776",
+			"0x16ae47cfa19e8046f93a579fa2557b17aeca7892fc7a82b6d539930c8b7c95c9",
+			"0xda62590043ca70c1cdfc7969cdfa853bddbcef0ef62aabb9f372805322511014",
+			"0x481b4aeaaa60504c94dcfea966840b381db85183c34cd25b4857300b5c189003",
+			"0x035dcc47f8670a9f648bcb0232e42fd4876243a7a3bf737b88d723ba187929a7",
+			"0xebe9bf09e3577865aeb341a06f67bb6e607f10b04ed9f9d733492a9d0e9ceb1a",
+			"0xad5d85b58af6aef7f81bd6b2407c6e4884ec82b2ae2aeaa24e379a3d35902375",
+			"0x0f0dd63d7c6c284659283825624140b31a3adaf7cdbb2255faca443e52ebfe84",
+			"0x40079be1c9394e95b4823895ed380d79333ca2085aed2abd0d766f84d21b7b42",
+			"0x7cc40ed01b436ce225a3f9c5c2bc7f6f81aee40bb83a54bca2fe899b15f3e2b6",
+			"0x1b6356e1a83ca5b0eefda1fd62fa959b118d2a19a6a90f182a53414b3fc7f9f0",
+			"0xae4a71712cc96a5b30b45e3b92c339c2e975e4ed683f4d1fcadcdc121ff7c6bf",
+			"0x226f6d8c71ec32c5eaab6b01c0fc1d00ae95e60b383d09560e90549b79eb1447",
+			"0xf3dec779841c9384df93bcefbba8700a292b570b29d286a7c9c5a442b4788a20",
+			"0x63ef48e80efa45383857adcb0f31076393260cbad058d1938345ad13faae50b4"
 		]
 	},
 	"nodes": [
--- a/ethcore/res/ethereum/frontier_like_test.json
+++ b/ethcore/res/ethereum/frontier_like_test.json
@@ -143,7 +143,6 @@
 		"eip161abcTransition": "0x7fffffffffffffff",
 		"eip161dTransition": "0x7fffffffffffffff",
 		"eip98Transition": "0x7fffffffffffff",
-		"eip86Transition": "0x7fffffffffffff",
 		"eip155Transition": "0x7fffffffffffffff"
 	},
 	"genesis": {
--- a/ethcore/res/ethereum/frontier_test.json
+++ b/ethcore/res/ethereum/frontier_test.json
@@ -23,7 +23,6 @@
 		"eip161abcTransition": "0x7fffffffffffffff",
 		"eip161dTransition": "0x7fffffffffffffff",
 		"eip98Transition": "0x7fffffffffffff",
-		"eip86Transition": "0x7fffffffffffff",
 		"eip155Transition": "0x7fffffffffffffff"
 	},
 	"genesis": {
--- a/ethcore/res/ethereum/homestead_test.json
+++ b/ethcore/res/ethereum/homestead_test.json
@@ -19,7 +19,6 @@
 		"minGasLimit": "0x1388",
 		"networkID" : "0x1",
 		"eip98Transition": "0x7fffffffffffff",
-		"eip86Transition": "0x7fffffffffffff",
 		"eip155Transition": "0x7fffffffffffffff",
 		"eip150Transition": "0x7fffffffffffffff",
 		"eip160Transition": "0x7fffffffffffffff",
--- a/ethcore/res/ethereum/kovan.json
+++ b/ethcore/res/ethereum/kovan.json
@@ -43,7 +43,13 @@
 		"eip211Transition": 5067000,
 		"eip214Transition": 5067000,
 		"eip658Transition": 5067000,
-		"wasmActivationTransition": 6600000
+		"wasmActivationTransition": 6600000,
+		"eip145Transition": 9200000,
+		"eip1014Transition": 9200000,
+		"eip1052Transition": 9200000,
+		"eip1283Transition": 9200000,
+		"kip4Transition": 9200000,
+		"kip6Transition": 9200000
 	},
 	"genesis": {
 		"seal": {
@@ -56,8 +62,8 @@
 		"gasLimit": "0x5B8D80"
 	},
 	"hardcodedSync": {
-		"header": "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",
-		"totalDifficulty": "2845866505151538604560067685603735513869853136",
+		"header": "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",
+		"totalDifficulty": "3020091077015059097853315484608800838133866777",
 		"CHTs": [
 			"0xdb9557458495268ddd69409fc1f66631ed5ff9bf6c479be6eabe5d83a460acac",
 			"0xd413800c22172be6e0b7a36348c90098955991f119ddad32c5b928e8db4deb02",
@@ -4214,7 +4220,257 @@
 			"0x3ef50c81169af169c100f58f3afcb8e2f926d957b2adbaca8787be5d4e8d7233",
 			"0x8783eaeb56ca2d7fec84e0e272b77271fdfd6c14452a2e1dd83de770c5d99a1a",
 			"0x861024460895378ba100c5d0c05e62bb6cac8b21ae529ab5cab39eb6c6cabd90",
-			"0x1c741ed9eda60e5ac585e2f48f06fb988367c2c40a0d8111bb04b260fe44ec6b"
+			"0x1c741ed9eda60e5ac585e2f48f06fb988367c2c40a0d8111bb04b260fe44ec6b",
+			"0x6051d77e0596a911bce132c4bc12be2ae5cf29d113dd52a41b3bc166861149ce",
+			"0x92c049df5ddb238644015d4e039e169614ed1d926de070952f2407912906cb4b",
+			"0xa897567fc1ee9437f2876deb3de2b11b8fc00aa07340564031573f0351ec556d",
+			"0x3e54a8e15218db168960d28369003cdb1a76f8db19384e9e2696ae66a6693d6e",
+			"0xc5db7ade97cf28f8b61f2c63a0773201ba64f37dadc19c03943b6772aa7a1a50",
+			"0xda784d1bf64b7efd06558b90cd2436f3e61dc0f7a8370ff92516ed062f461091",
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+			"0xcc89a8be2ff74a7bb9e967cfea3cac067aa84cc455a2fdd5449577b52a2b4ff3",
+			"0xbd23a3e6d3198d81d798c2851c36b954fa6f359bc8fc6e04a0b757e3d0ba053a",
+			"0x74640f825b9d9f95be69763845aaa0269d3a6ed5aaec88bfd9b5c4139ba7ef41",
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+			"0xbe48c727fb6a32242229eaa09146c76522dcf6bed6d1c6fc1bebf86b5e4ccdb4",
+			"0x8487b971e383272df82cd812a0bf3a2026b85bc3897b4ce9ce48afa00849fe00",
+			"0x60d18b465172f59c0d71594b5273a90cb41db24a5d4c9fc37020f9d8c467a4a2",
+			"0xab4e36d9f17c748c87d89c23b667e3f4e3265e77b62dbd9c92659026f8a53d12"
 		]
 	},
 	"accounts": {
--- a/ethcore/res/ethereum/mcip3_test.json
+++ b/ethcore/res/ethereum/mcip3_test.json
@@ -33,7 +33,6 @@
 		"eip160Transition":"0x7fffffffffffff",
 		"eip161abcTransition":"0x7fffffffffffff",
 		"eip161dTransition":"0x7fffffffffffff",
-		"eip86Transition":"0x7fffffffffffff",
 		"eip98Transition":"0x7fffffffffffff",
 		"eip140Transition":"0x7fffffffffffff",
 		"eip155Transition":"0x7fffffffffffff",
--- a/ethcore/res/ethereum/mcip6_byz.json
+++ b/ethcore/res/ethereum/mcip6_byz.json
@@ -33,7 +33,6 @@
 		"eip160Transition":"0x7fffffffffffff",
 		"eip161abcTransition":"0x7fffffffffffff",
 		"eip161dTransition":"0x7fffffffffffff",
-		"eip86Transition":"0x7fffffffffffff",
 		"eip98Transition":"0x7fffffffffffff",
 		"eip140Transition":"0x2a",
 		"eip155Transition":"0x2a",
--- a/ethcore/res/ethereum/morden.json
+++ b/ethcore/res/ethereum/morden.json
@@ -31,8 +31,7 @@
 		"eip161abcTransition": "0x7fffffffffffffff",
 		"eip161dTransition": "0x7fffffffffffffff",
 		"eip155Transition": 1915000,
-		"eip98Transition": "0x7fffffffffffff",
-		"eip86Transition": "0x7fffffffffffff"
+		"eip98Transition": "0x7fffffffffffff"
 	},
 	"genesis": {
 		"seal": {
--- a/ethcore/res/ethereum/musicoin.json
+++ b/ethcore/res/ethereum/musicoin.json
@@ -33,7 +33,6 @@
 		"eip160Transition":"0x21e88e",
 		"eip161abcTransition":"0x21e88e",
 		"eip161dTransition":"0x21e88e",
-		"eip86Transition":"0x7fffffffffffff",
 		"eip98Transition":"0x7fffffffffffff",
 		"eip140Transition":"0x21e88e",
 		"eip155Transition":"0x21e88e",
--- a/ethcore/res/ethereum/olympic.json
+++ b/ethcore/res/ethereum/olympic.json
@@ -23,7 +23,6 @@
 		"eip161abcTransition": "0x7fffffffffffffff",
 		"eip161dTransition": "0x7fffffffffffffff",
 		"eip98Transition": "0x7fffffffffffff",
-		"eip86Transition": "0x7fffffffffffff",
 		"eip155Transition": "0x7fffffffffffffff"
 	},
 	"genesis": {
--- a/ethcore/res/ethereum/poacore.json
+++ b/ethcore/res/ethereum/poacore.json
@@ -15,9 +15,14 @@
 						},
 						"772000": {
 							"safeContract": "0x83451c8bc04d4ee9745ccc58edfab88037bc48cc"
+						},
+						"5329160": {
+							"safeContract": "0xa105Db0e6671C7B5f4f350ff1Af6460E6C696e71"
 						}
 					}
-				}
+				},
+				"blockRewardContractAddress": "0x4d0153D434384128D17243409e02fca1B3EE21D6",
+				"blockRewardContractTransition": 5761140
 			}
 		}
 	},
--- a/ethcore/res/ethereum/poasokol.json
+++ b/ethcore/res/ethereum/poasokol.json
@@ -18,9 +18,14 @@
 						},
 						"509355": {
 							"safeContract": "0x03048F666359CFD3C74a1A5b9a97848BF71d5038"
+						},
+						"4622420": {
+							"safeContract": "0x4c6a159659CCcb033F4b2e2Be0C16ACC62b89DDB"
 						}
 					}
-				}
+				},
+				"blockRewardContractAddress": "0x3145197AD50D7083D0222DE4fCCf67d9BD05C30D",
+				"blockRewardContractTransition": 4639000
 			}
 		}
 	},
--- a/ethcore/res/ethereum/ropsten.json
+++ b/ethcore/res/ethereum/ropsten.json
@@ -9,9 +9,11 @@
 				"durationLimit": "0x0d",
 				"blockReward": "0x4563918244F40000",
 				"homesteadTransition": 0,
-				"eip649Reward": "0x29A2241AF62C0000",
 				"eip100bTransition": 1700000,
-				"eip649Transition": 1700000
+				"eip649Transition": 1700000,
+				"eip649Reward": "0x29A2241AF62C0000",
+				"eip1234Transition": 4230000,
+				"eip1234Reward": "0x1BC16D674EC80000"
 			}
 		}
 	},
@@ -32,11 +34,14 @@
 		"eip161dTransition": 10,
 		"eip155Transition": 10,
 		"eip98Transition": "0x7fffffffffffff",
-		"eip86Transition": "0x7fffffffffffff",
 		"eip140Transition": 1700000,
 		"eip211Transition": 1700000,
 		"eip214Transition": 1700000,
-		"eip658Transition": 1700000
+		"eip658Transition": 1700000,
+		"eip145Transition": 4230000,
+		"eip1014Transition": 4230000,
+		"eip1052Transition": 4230000,
+		"eip1283Transition": 4230000
 	},
 	"genesis": {
 		"seal": {
@@ -53,8 +58,8 @@
 		"gasLimit": "0x1000000"
 	},
 	"hardcodedSync":{
-		"header": "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",
-		"totalDifficulty": "9811143388018700",
+		"header": "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",
+		"totalDifficulty": "12027449412394243",
 		"CHTs": [
 			"0x614648fc0a459451850bdfe353a932b5ff824e1b568478394f78b3ed5427e37a",
 			"0x1eae561c582dbb7f4e041998e084e165d0332c915d3a6da367638a8d24f3fafc",
@@ -1968,7 +1973,146 @@
 			"0xb652952de1bf9e1174e5f6a37b069b437792672a37a9e0159c4f36b6e64306b4",
 			"0xb72dd6cb5df1b00dbbd84e097e2da79af2ce60559697ab4c93b0a8b85b2ee406",
 			"0xb96fd4a94ac30c10f757691f7f06f25a4900fe424f4eb7ccf322e2f95249b914",
-			"0x99fd442599036f161ccef1ae8088c5ef694c1819f5b76d9d2fa8f979935f69f8"
+			"0x99fd442599036f161ccef1ae8088c5ef694c1819f5b76d9d2fa8f979935f69f8",
+			"0x3e53574f6ae31a45ef928f9c37bea6c61e6d728a5ade9851567d3167f5ca3314",
+			"0xd7e3d08c5b71a7ad8338e8b51ec54cb11ad4d643d129a371af07376f8c47c1d4",
+			"0x1033c8aed4ec46377f75cc9a6b3297e1da0a7d1e74df20bae9fdf6d037afdc28",
+			"0x924d621544f3301f9e212fbb95872fce9eb4a4172a11693674de733bfc2b0018",
+			"0x7f61884149ea4def1444a70c022da1c23f31ecc51bb175905b492236a57c7fde",
+			"0x40c50785bc0665ab4eb3cec95405e17510c571570a5859ead804530dbcbd1387",
+			"0xf806491cf778f4796c0f73428e6eaf237da8488af99e9b61d72c56fa03e7051c",
+			"0x7a9670842dcb12c66f11e357a84849cee227ea5a7351e7c6c9370e9ef2560129",
+			"0x1c974da4e1073157c10deac8b256c8ced77a030e0500b2b8a90b6ca1d32ab4fa",
+			"0x97ebcc81ba9c1e04865ee4617daa967dec39f65501be21fbbe929db869d57dd8",
+			"0xa36e4506065d8b9c662697b18ffe50ed2f6ccfe6d07a065bdad048778cc53668",
+			"0xb9d5566eb0d40bbb03114d333d1d1dc85b0e780ec63229f3b93b2c84af5f9509",
+			"0xcd16693573724880c3c83834d516be65c35a861b76b43878e28aa7fcbc961361",
+			"0x4f60ecd7811acc087fc4557fdfaa1a0b522fe30da1cbae5e7740eec3cff04c00",
+			"0x9e58573b152bf5008e0ea3fc0d64573211916521a62fb08ba0f1b44c5da12e7d",
+			"0x2c6693cfd7e5bf9a3d8cef9e186b3da25d07af983564ced6238f9191b020f105",
+			"0x8cc6149caeafef85ec7b2456f33530459c52b30a5365a2a0022b1c308357f7b4",
+			"0x6f66863bd9909f687523128569cd0894c4cf41e2eddd5cd9c20d30c446b1711b",
+			"0x402317752053e7b6d7e2d5512d6397112d80ace0873f5f9d32c023a402ec03b3",
+			"0x2fcd50a79495057908bd34875e3531e6298488f0d06d043fb6fb0b140895d379",
+			"0x533ba9669dcee2c6e35713c7eca3bca168a326a36b0e39fcde76cbd35ab3d99d",
+			"0xdc2e86503e8066bc5fac91fe63544e33568a3c744967b9360458101c3d9df096",
+			"0xf994b38ba312d8bfb00d428b13a088738d93965b525eae81b45b9be344f99fd2",
+			"0x0721f3f772958d6a58dba638453b8d004e0c76dc8b4cf6d595b712edddcf002f",
+			"0x3c650c2c7ebbe7879a15882c3157552e8ae1adebea8f0c65a2dda272cc4ed838",
+			"0x649fe38e87546703245a7adf5925e8c7a07942750e14d39553a56ca3fcbd8c65",
+			"0xad204bf42d2a444faa864df8e9d023483a6b6daaa8001e00bb5373a45ed064a3",
+			"0x2c5cdc73d8ddef2e5c0d47358ac180043e7e246e590a7e8ad2b0a3f9b4e9375d",
+			"0xf38f6c364bbbbe626e849ca9bb9324c54cf0ba8dfc0b2741a3ff87ce7734adbc",
+			"0x317efc1cea774849d6219d31c8464a15956da4f3810bf15d4353443f79d98e75",
+			"0xb6796dccdf4d3cab16b5ec9567237cb988ee94131f3262c2a581180b775e76de",
+			"0x1fde3fdf2303d080d400c43345a424f50f6551a6a06ad50c6e277d49e8034df3",
+			"0x4d7bc44a3b56f5e69fd3e5e8c0cd8f5f839a775c4ee381b4b1d0a36656cf91cc",
+			"0x6051b60fdced0c51aa6a1cab2418c8f21c5d174109d514a4c6de758b2056611b",
+			"0x3c2f7be830078af3c2c6d1557b3da74d1d5bbfd8094f98886a959aa71ce70b15",
+			"0x8f296b90a0ece0a3dbec19a801072497c5840f9c0491062cd402db00c2b69f2a",
+			"0x6c14c4697f8291dbdfdbfea5522798e3f8b17204f80d8370e6d379e6ee659e77",
+			"0x4e98f63afaa50f8a30b0d352eb5fcb5403c635cf54b41545aa8b48465d23fb1d",
+			"0xad3059433e981ff12cd0d7dbc11a8d92a65cb39c6e936e9c7db5934d45806492",
+			"0x1cbb21f28ad2d191d6850c97487e5a733306f2f6ba370723fd5ed37cf6c880a0",
+			"0x82a0010a1b20d383bff0e5d7ba3751bc0d9161a4817554432558c5c2825babb3",
+			"0x33e54e93443e87c003d582dc51d0b9981ddcaeac4df0993877739651cbf52a58",
+			"0x1de8bc150f4142cd45b5d0784e5952abd8de7cba9654af959498c0fd0bcac404",
+			"0x3ee852f48a1a930d671e53c9c8d8c3c38353ee1737c093960c3f841e6c682e94",
+			"0xa9c6e05ec91e2a2f2f003419063fe033e37e5353c6e233706e29c08693e35eb8",
+			"0x649f7328064c55c03249d527dadaedcdbb4cb0e939d94c866844192d99469e05",
+			"0x3a407d00efcd5fe7bb765347b1a3f231b744349269b3aeb44099f4bdd068eb9e",
+			"0xa1a20af2f7e61082810ce7e7afe6118bc0ad95e9641e6129027f46af28048107",
+			"0x0d68fc5e58cacb2d16d99a0e9e612d674754ea51cbee2c68a21f4b0aa926688c",
+			"0x9b3e58144c014343271c9dc90daa8d2f642954b3eda223d64bbb0ac41380e512",
+			"0xd3de08b676d4f06bbf4322ed4340caab76e6ab7144c97af91c2bc9c749e65b38",
+			"0x21d626c9c38087aac6262b64f09398be6e4cbf246100d8c2416cab57e9ac1b68",
+			"0x563a450e35f40279f5946641a823f596ef3ad22a45b8ec280128546aeb0faf14",
+			"0xadd9c7128e14e670c7d21d6dfa5c09a11dfd237e90709b087e3329d3cd89b5fd",
+			"0x258cc0f845d8e7438a707f590f55203c6c51302cef4cfbf788b1c7054688da14",
+			"0x4309676aa14fa8244e0a089c7013b89c9adf57fa952295b8ddb23fc6545c9870",
+			"0x5db769765dfb41aefc0f40f06f3d005b30ce1f14f04f653e0c5500f651cd61cb",
+			"0xbef131c9f19572b05d295d7122fd1a09fe4a8afd4e20c5a0f3cd2785b7eb9882",
+			"0x3f235228ea537332a041ec75cc6cb5663edaa1c2ed1c1700273af73a5d49bf1c",
+			"0xc081811bb077c6ebe224b560eb6b81f3f813b26789cb06d96110071ffc25fcb4",
+			"0x912444c19a5e458b79c89969ed5336f2873267baf2fe729b6f218b74d269b797",
+			"0x5846fc726eb9627e9d070041b92d76191c4b32e315d33ad18121b8acd01634fd",
+			"0xc899f45494660034d343670856c13a32b230d047434a4d54a772132ddfe3e182",
+			"0x11a699c18b04e8cdcd96a43b7465f7bd81f8f64d7ebe79dcaf9201cc897f2746",
+			"0x8e09b134dc8a1735c060175e9688fd001974bf2e3baa5a8e88dc4c87365e0e07",
+			"0xa086797ebca0a1d446a9289b7eda920b926e1b595c288a9dea31ad225e6de86f",
+			"0x0cc04369b6036dff78a9856a5173bb2dde380359a8dbe0126e06d6e763a01c36",
+			"0x4b5efcac86e03d1f67774769b8bcc5d131c181cd4fa297eaa6cea5ec0cdfaa6f",
+			"0x47272a21a07ad5e14e3f97b237dab7e33344da4db5b2d31bc7cd0cc2d2c9f1db",
+			"0x9540755fd321d125b73cb6f1884c2f0b2a821d29362194f5029a5e7ba2d3ed44",
+			"0x229b88922fe52a78090673775f264cd665fe222002d6add2ed29b7ffd98de717",
+			"0x8fa2d755d5cc0efb01d9fd6f5ae1f7864404ae111d8ba17e23686ea9b6566336",
+			"0x33a8f2e0775fd19b1302b985bd6c29d4ab5fc63060bcf3df2c3685ab1b19ce67",
+			"0xf6d6bebb541ef9b84d779c62adb76774bb38a8eba3823e74e0790dc7401bebbc",
+			"0xa1f421108d49ed23996e55012613fc05e0f86e00f17251b1ff1e0824d35befc7",
+			"0x2cc572ed83dc6c604bb455ab050c550184a923f4b13815f06d10ef19dffb3c7a",
+			"0x28220e7d1a9583d68656f03ef4d6fa3e249c71d1b42698f87ba1fc582493e194",
+			"0xe8aa37b3214abb1bc167fdb6f10119a4019541f31c76b3b3f8c363bb138bd09e",
+			"0x825189c2c836dda454b457a03ff83d422bf78df1f368434768690fa7f51c57e0",
+			"0x5dad65d275e69478c81ecaec5b872660205735d9649ac020f65f5ea6ae972dda",
+			"0x84a1184d8f94fab280e0593479179348f9184d6fe5a2b2ea9697894c42574473",
+			"0xbef5a05bc7e1fb94465570144499672d95f31fa241b4c510011f6677e2bf72fb",
+			"0xd08235ebe6d79a8549bcd3d2414cd8afd2a3e2ca22ced226c60aacad1361ff89",
+			"0xbab5204ad45ec52860023e7474579e7c95397f3c4ac01db7e446e92c19dceef0",
+			"0x6c81acf2ff161d423a904c457166ff454ef41571d01e73d56bf9ab892790248d",
+			"0xaf4a603b808e3ddece42e3e123ea02defb9f8ef2546a95c5a617b6ecdb89c306",
+			"0xeecdbda25b04eb764e322d9a1e5eefad399c9ced8c77b1e4ecfbefcc90bb403d",
+			"0x9463f4677a2039ca372b61b16d5bcb7c043b26af04aea4d3f0dcdec7bd222070",
+			"0x27bfd92799b4cf9699d2bfcb158f6727bb986fc0dee780fc1052366ebc4e6364",
+			"0x63c3faa1a8fc0d531261cd241b1299d4fc13629abb4cd357eeb130505fbddf94",
+			"0x9a4535b07ff68862f3396b14b88fa07cff7abdd5744775aeeec6868606eb4712",
+			"0xae59e7c3e0a1df32f6e027da2983d3c55b4ba4d99e85329361561bd7f13ac629",
+			"0xcc5dc26b9be8fd8432537d967afe12fc668949e4fcf72d97a40f9214975fa57a",
+			"0x8f11634c83c7a43be8b98335ba617a64c6379f5f92664055c5e1620791134ddb",
+			"0x14ce2a69d844e6a46aa244c5aca9fb74c127f2151c7c16f4611ca030df365d8b",
+			"0xb06f220566a5e62570b9e9e49a8b9d5663501ba145b12260fbf9d4a18a4b19e3",
+			"0x6274f3cf553c45e6ba7ef644d75bf208e08a8c6325e336aefd35dda9cca3c4d2",
+			"0xd0d685497c2f2b923d0b9f1590a748da8c684a915a470db58c3105c83d8304e7",
+			"0xf37fab515f96e655f182f0b6e6aa3602f2cd74773329094772151e8c33d1f9a4",
+			"0xf6efd731481e8553f1d18b5735166499e787009b484b0dfbe4d35e7930f0d837",
+			"0xc96132b510863e553e08c54e98b5e9c0067f26e421980a6a3bfd4f07480c4396",
+			"0xdca9d8182c573871b6d6a184cb9819256398080bcb7fd765e6c69cd972a28d8d",
+			"0xd632ca6f5d45646726ecd2977ffea5c71a867890633f571b359657c0d096f840",
+			"0xfe3884dbca6bd3b0087466b04e6a5857ad59d7a25021e1d994d059d20005185b",
+			"0x7f40eb6fb94b05bb43873a98e9d4eb5f7ac90fb8913240bc0909c6be42922b30",
+			"0x5113a0808666815cfc52b8ed63c649d96f35c365def36ae623f536241b163c3f",
+			"0x8e6dbacfb5c593d7d7c2650d3d0115c3702cbb55f73011823a202e69ca33cc70",
+			"0x8f069ac7caa48bce09fe93f4aaef6784d8a6f7a3a09edb82c7512ec18acc3ab9",
+			"0xa5525e51fd789c59d3b208efffe09abca47cfd6981d36ab44084b86706c69888",
+			"0xcb4a7e60d5e8b9d22887ef1e8ce339cfcea0ae1fcbfa9adb766ad05d84182de7",
+			"0x0a14f23f9066ebdb67df31e66f6b8ab1c089025c0ba56ea56d15f73749f47cb7",
+			"0x0963e3eba12e41d21af7625b8dc487b637b1789a6ac05fb23062e0166942df68",
+			"0xcb7ec271b2f42cae0027d22b688b19b9288f2b5d9c43bc5b1ea23b35f5542828",
+			"0x9b97e6f4b2eeee29ecccf9584dc020c8caa3cae51c82f5b58d279eaf0c6ab4e3",
+			"0xad7f1963ce9993e6172c2ae90c6e1d4d3d3c52e14284fcc1b1e9a56776afb97e",
+			"0x52ef2ad7bc2921742dcbac9772f13d5c31be938eb1ad6aceb2fa8a163389cefa",
+			"0x369ead6d900e64ae0b5028df8574e59b67c61dca418c87ce6461eb4c8535fd30",
+			"0x7e1a18f6199f05f21f9eb5463e9ffd87637d2fd24a23047fe095895c533cb6a5",
+			"0xe1b8813a95e511aaec9b358d515e624fbc20e551c56328f843ae90b3c895d3a2",
+			"0xc2ea59f3d1e7bbe115390a4c210142fe9f9dcb1959764450f5b5292ad90e0fcf",
+			"0x97d235c3f18e6819c08dab4efe66d0f11f0d06f8ffc9686e3f28400e057e6f4a",
+			"0xea64f817770252b77b08ca2f579b440ec02e833fc88af7c9c96a8e1e07b2cb2c",
+			"0x185f5fd1f7001b533dc01783c83b7ab0828a4e2f188cc4e26768c515b4c421f6",
+			"0x0c9de9844e856a1e4340bf54dcaf9dc66b489304765b5c3c6ca20284f5a0dca6",
+			"0x4dd1d52da1d260d1f0f63bafc4c816b30cea8ec3434e7d4b63a0eff86997254c",
+			"0x0b3eb94aa246f7c8c871535ae2d3abe5c1b951e76b77510140ef52d5ea2457ee",
+			"0x27102708eea5d715799642f213049d8ac9abc3b12c76d147ce443dab28af96d8",
+			"0x81fb3c4e8dc6c658af2901b7aebf7467b9ae045dd0f58fe8d77f8770ac517fb6",
+			"0xf68dba4eee635d7494bae6fb9f0c44e739b3121d4bc6f6f21b495a716af3cf52",
+			"0xcf87b723dc473d313bf9ddfa233056036c5658777e831796f1f56647cd040c8d",
+			"0x49927c2100039ac496d9c16dd12f0a05c9441b8616c69c726fd2e79ae65e130c",
+			"0x088195c7251f6b9fa2105e77df5620211b8ca783a77f1a98de6752fc442c26c7",
+			"0x604de480bcb88e908b90451c4142b99b9cbb479167473befca7bea9b4ca427a3",
+			"0x642fdaf6bc1abbf261a9480fcf9bb48cf03fb80bdd434c6ab63401856c74fa39",
+			"0xe6b596393fce7a3023a316ac34a1fac18e18779ca5983791866f857f257592e1",
+			"0x40384a52564fae5df8c3e41827cdf584e38f3f555a54ca749b7b516619071d85",
+			"0xe52f7c17a4106594563ae7b724e5613e87d8442177f39a36b946b0e335be0e5b",
+			"0x7726202a7c255a9d7be47af6f3b44c1e379cda61237866554396fb6ec043482c",
+			"0x665da353f296cde80e3cbcb9c7f93b107d5676e5cd694b0bd33334d74789beb9"
 		]
 	},
 	"nodes": [
--- a/ethcore/res/ethereum/social.json
+++ b/ethcore/res/ethereum/social.json
@@ -27,8 +27,7 @@
 		"eip161abcTransition": "0x7fffffffffffffff",
 		"eip161dTransition": "0x7fffffffffffffff",
 		"eip155Transition": "0x0",
-		"eip98Transition": "0x7fffffffffffff",
-		"eip86Transition": "0x7fffffffffffff"
+		"eip98Transition": "0x7fffffffffffff"
 	},
 	"genesis": {
 		"seal": {
--- a/ethcore/res/ethereum/tests
+++ b/ethcore/res/ethereum/tests
--- a/ethcore/res/ethereum/tests-issues/currents.json
+++ b/ethcore/res/ethereum/tests-issues/currents.json
@@ -0,0 +1,468 @@
+{ "block":
+	[
+		{
+			"reference": "9590",
+			"failing": "stCreateTest",
+			"subtests": [
+				"CreateOOGafterInitCodeReturndata2_d0g1v0_Constantinople"
+			]
+		},
+		{
+			"reference": "9590",
+			"failing": "stCreate2",
+			"subtests": [
+				"RevertDepthCreateAddressCollision_d0g1v0_Constantinople",
+				"RevertDepthCreateAddressCollision_d1g1v1_Constantinople",
+				"CREATE2_Suicide_d5g0v0_Constantinople",
+				"CREATE2_Suicide_d7g0v0_Constantinople",
+				"create2collisionSelfdestructedOOG_d2g0v0_Byzantium",
+				"create2collisionSelfdestructedOOG_d2g0v0_Constantinople",
+				"create2collisionNonce_d1g0v0_Byzantium",
+				"create2collisionNonce_d1g0v0_Constantinople",
+				"CreateMessageRevertedOOGInInit_d0g1v0_Constantinople",
+				"create2callPrecompiles_d3g0v0_Constantinople",
+				"create2collisionCode_d1g0v0_Byzantium",
+				"create2collisionCode_d1g0v0_Constantinople",
+				"create2collisionStorage_d0g0v0_Byzantium",
+				"create2collisionStorage_d0g0v0_Constantinople",
+				"create2callPrecompiles_d4g0v0_Constantinople",
+				"create2collisionSelfdestructedRevert_d0g0v0_Byzantium",
+				"create2collisionSelfdestructedRevert_d0g0v0_Constantinople",
+				"CreateMessageReverted_d0g1v0_Constantinople",
+				"RevertOpcodeCreate_d0g1v0_Constantinople",
+				"CREATE2_Suicide_d11g0v0_Constantinople",
+				"create2checkFieldsInInitcode_d5g0v0_Constantinople",
+				"create2collisionSelfdestructedOOG_d1g0v0_Byzantium",
+				"create2collisionSelfdestructedOOG_d1g0v0_Constantinople",
+				"returndatacopy_following_create_d1g0v0_Constantinople",
+				"RevertDepthCreate2OOG_d1g1v1_Constantinople",
+				"create2collisionSelfdestructed_d2g0v0_Byzantium",
+				"create2collisionSelfdestructed_d2g0v0_Constantinople",
+				"create2callPrecompiles_d2g0v0_Constantinople",
+				"create2InitCodes_d2g0v0_Constantinople",
+				"create2collisionNonce_d2g0v0_Byzantium",
+				"create2collisionNonce_d2g0v0_Constantinople",
+				"create2collisionCode_d0g0v0_Byzantium",
+				"create2collisionCode_d0g0v0_Constantinople",
+				"CREATE2_Bounds_d0g0v0_Constantinople",
+				"RevertDepthCreate2OOG_d0g0v0_Constantinople",
+				"CREATE2_Suicide_d1g0v0_Constantinople",
+				"CREATE2_Bounds3_d0g1v0_Constantinople",
+				"create2collisionStorage_d2g0v0_Byzantium",
+				"create2collisionStorage_d2g0v0_Constantinople",
+				"RevertDepthCreateAddressCollision_d0g0v1_Constantinople",
+				"create2callPrecompiles_d5g0v0_Constantinople",
+				"create2collisionCode2_d0g0v0_Byzantium",
+				"create2collisionCode2_d0g0v0_Constantinople",
+				"create2noCash_d0g0v0_Byzantium",
+				"create2noCash_d0g0v0_Constantinople",
+				"create2checkFieldsInInitcode_d7g0v0_Constantinople",
+				"create2SmartInitCode_d1g0v0_Constantinople",
+				"create2InitCodes_d6g0v0_Constantinople",
+				"create2noCash_d1g0v0_Byzantium",
+				"create2noCash_d1g0v0_Constantinople",
+				"CREATE2_ContractSuicideDuringInit_ThenStoreThenReturn_d0g0v0_Constantinople",
+				"RevertOpcodeInCreateReturns_d0g0v0_Constantinople",
+				"create2collisionStorage_d1g0v0_Byzantium",
+				"create2collisionStorage_d1g0v0_Constantinople",
+				"create2checkFieldsInInitcode_d3g0v0_Constantinople",
+				"create2collisionBalance_d0g0v0_Byzantium",
+				"create2collisionBalance_d0g0v0_Constantinople",
+				"create2collisionSelfdestructed2_d0g0v0_Constantinople",
+				"create2InitCodes_d3g0v0_Constantinople",
+				"create2collisionCode2_d1g0v0_Byzantium",
+				"create2collisionCode2_d1g0v0_Constantinople",
+				"create2checkFieldsInInitcode_d1g0v0_Constantinople",
+				"create2collisionBalance_d1g0v0_Byzantium",
+				"create2collisionBalance_d1g0v0_Constantinople",
+				"CREATE2_Bounds3_d0g2v0_Constantinople",
+				"create2callPrecompiles_d6g0v0_Constantinople",
+				"Create2Recursive_d0g0v0_Constantinople",
+				"create2collisionSelfdestructedOOG_d0g0v0_Byzantium",
+				"create2collisionSelfdestructedOOG_d0g0v0_Constantinople",
+				"CREATE2_Suicide_d3g0v0_Constantinople",
+				"returndatacopy_following_create_d0g0v0_Constantinople",
+				"create2InitCodes_d8g0v0_Constantinople",
+				"RevertDepthCreate2OOG_d0g0v1_Constantinople",
+				"create2checkFieldsInInitcode_d2g0v0_Constantinople",
+				"RevertDepthCreate2OOG_d1g0v1_Constantinople",
+				"Create2OnDepth1024_d0g0v0_Constantinople",
+				"create2collisionSelfdestructed2_d1g0v0_Constantinople",
+				"create2collisionSelfdestructedRevert_d2g0v0_Byzantium",
+				"create2collisionSelfdestructedRevert_d2g0v0_Constantinople",
+				"create2callPrecompiles_d0g0v0_Constantinople",
+				"RevertDepthCreateAddressCollision_d0g1v1_Constantinople",
+				"create2collisionSelfdestructed_d1g0v0_Byzantium",
+				"create2collisionSelfdestructed_d1g0v0_Constantinople",
+				"call_outsize_then_create2_successful_then_returndatasize_d0g0v0_Byzantium",
+				"call_outsize_then_create2_successful_then_returndatasize_d0g0v0_Constantinople",
+				"Create2OOGafterInitCodeRevert_d0g0v0_Constantinople",
+				"Create2OOGafterInitCodeReturndata3_d0g0v0_Constantinople",
+				"Create2OOGafterInitCodeReturndataSize_d0g0v0_Constantinople",
+				"create2InitCodes_d7g0v0_Constantinople",
+				"CREATE2_Suicide_d10g0v0_Constantinople",
+				"RevertDepthCreate2OOG_d0g1v0_Constantinople",
+				"create2InitCodes_d5g0v0_Constantinople",
+				"create2collisionSelfdestructedRevert_d1g0v0_Byzantium",
+				"create2collisionSelfdestructedRevert_d1g0v0_Constantinople",
+				"RevertDepthCreate2OOG_d1g1v0_Constantinople",
+				"create2collisionSelfdestructed_d0g0v0_Byzantium",
+				"create2collisionSelfdestructed_d0g0v0_Constantinople",
+				"create2noCash_d2g0v0_Byzantium",
+				"create2noCash_d2g0v0_Constantinople",
+				"CREATE2_Bounds3_d0g0v0_Constantinople",
+				"create2collisionNonce_d0g0v0_Byzantium",
+				"create2collisionNonce_d0g0v0_Constantinople",
+				"CREATE2_Suicide_d2g0v0_Constantinople",
+				"Create2OOGafterInitCode_d0g0v0_Constantinople",
+				"call_then_create2_successful_then_returndatasize_d0g0v0_Byzantium",
+				"call_then_create2_successful_then_returndatasize_d0g0v0_Constantinople",
+				"create2collisionBalance_d2g0v0_Byzantium",
+				"create2collisionBalance_d2g0v0_Constantinople",
+				"create2checkFieldsInInitcode_d6g0v0_Constantinople",
+				"RevertDepthCreate2OOG_d0g1v1_Constantinople",
+				"returndatacopy_afterFailing_create_d0g0v0_Constantinople",
+				"returndatacopy_following_revert_in_create_d0g0v0_Constantinople",
+				"CREATE2_Suicide_d9g0v0_Constantinople",
+				"create2callPrecompiles_d7g0v0_Constantinople",
+				"RevertDepthCreateAddressCollision_d1g0v1_Constantinople",
+				"create2InitCodes_d1g0v0_Constantinople",
+				"CREATE2_Bounds_d0g1v0_Constantinople",
+				"Create2OOGafterInitCodeReturndata_d0g0v0_Constantinople",
+				"create2checkFieldsInInitcode_d4g0v0_Constantinople",
+				"CreateMessageRevertedOOGInInit_d0g0v0_Constantinople",
+				"RevertDepthCreateAddressCollision_d1g1v0_Constantinople",
+				"returndatacopy_following_successful_create_d0g0v0_Constantinople",
+				"create2checkFieldsInInitcode_d0g0v0_Constantinople",
+				"CreateMessageReverted_d0g0v0_Constantinople",
+				"create2SmartInitCode_d0g0v0_Constantinople",
+				"CREATE2_Bounds2_d0g0v0_Constantinople",
+				"returndatasize_following_successful_create_d0g0v0_Constantinople",
+				"CREATE2_Bounds2_d0g1v0_Constantinople",
+				"returndatacopy_0_0_following_successful_create_d0g0v0_Constantinople",
+				"RevertDepthCreateAddressCollision_d0g0v0_Constantinople",
+				"CREATE2_Suicide_d0g0v0_Constantinople",
+				"create2InitCodes_d0g0v0_Constantinople",
+				"Create2OnDepth1023_d0g0v0_Constantinople",
+				"create2InitCodes_d4g0v0_Constantinople",
+				"Create2OOGafterInitCodeReturndata2_d0g0v0_Constantinople",
+				"create2collisionBalance_d3g0v0_Byzantium",
+				"create2collisionBalance_d3g0v0_Constantinople",
+				"CREATE2_Suicide_d4g0v0_Constantinople",
+				"Create2OOGafterInitCode_d0g1v0_Constantinople",
+				"RevertDepthCreateAddressCollision_d1g0v0_Constantinople",
+				"Create2OOGafterInitCodeRevert2_d0g0v0_Constantinople",
+				"Create2OOGafterInitCodeReturndata_d0g1v0_Constantinople",
+				"Create2Recursive_d0g1v0_Constantinople",
+				"create2collisionCode_d2g0v0_Byzantium",
+				"create2collisionCode_d2g0v0_Constantinople",
+				"CREATE2_Suicide_d6g0v0_Constantinople",
+				"CREATE2_Suicide_d8g0v0_Constantinople",
+				"RevertOpcodeCreate_d0g0v0_Constantinople",
+				"Create2OOGafterInitCodeReturndata2_d0g1v0_Constantinople",
+				"create2callPrecompiles_d1g0v0_Constantinople",
+				"RevertInCreateInInit_d0g0v0_Constantinople",
+				"RevertDepthCreate2OOG_d1g0v0_Constantinople"
+			]
+		},
+		{
+			"reference": "9590",
+			"failing": "bcStateTest",
+			"subtests": [
+				"suicideStorageCheck_Byzantium",
+				"suicideStorageCheck_Constantinople",
+				"suicideStorageCheckVCreate2_Byzantium",
+				"suicideStorageCheckVCreate2_Constantinople",
+				"create2collisionwithSelfdestructSameBlock_Constantinople",
+				"blockhashNonConstArg_Constantinople",
+				"suicideThenCheckBalance_Constantinople",
+				"suicideThenCheckBalance_Homestead",
+				"suicideStorageCheckVCreate_Byzantium",
+				"suicideStorageCheckVCreate_Constantinople"
+			]
+		},
+		{
+			"reference": "9590",
+			"failing": "stEIP158Specific",
+			"subtests": [
+				"callToEmptyThenCallError_d0g0v0_Byzantium",
+				"callToEmptyThenCallError_d0g0v0_Constantinople",
+				"callToEmptyThenCallError_d0g0v0_EIP158"
+			]
+		},
+		{
+			"reference": "9590",
+			"failing": "stPreCompiledContracts",
+			"subtests": [
+				"identity_to_smaller_d0g0v0_Constantinople",
+				"identity_to_bigger_d0g0v0_Constantinople"
+			]
+		},
+		{
+			"reference": "9590",
+			"failing": "stReturnDataTest",
+			"subtests": [
+				"modexp_modsize0_returndatasize_d0g1v0_Constantinople",
+				"modexp_modsize0_returndatasize_d0g2v0_Constantinople",
+				"modexp_modsize0_returndatasize_d0g3v0_Constantinople"
+			]
+		},
+		{
+			"reference": "9590",
+			"failing": "stSpecialTest",
+			"subtests": [
+				"push32withoutByte_d0g0v0_Constantinople"
+			]
+		}
+
+	],
+	"state":
+	[
+		{
+			"reference": "9590",
+			"failing": "stCreateTest",
+			"subtests": {
+				"CreateOOGafterInitCodeReturndata2": {
+					"subnumbers": ["2"],
+					"chain": "Constantinople (test)"
+				}
+			}
+		},
+		{
+			"reference": "9590",
+			"failing": "stCreate2Test",
+			"subtests": {
+				"RevertInCreateInInit": {
+					"subnumbers": ["1"],
+					"chain": "Constantinople (test)"
+				}
+			}
+		},
+		{
+			"reference": "9590",
+			"failing": "stEIP150Specific",
+			"subtests": {
+				"NewGasPriceForCodes": {
+					"subnumbers": ["1"],
+					"chain": "Constantinople (test)"
+				}
+			}
+		},
+		{
+			"reference": "9590",
+			"failing": "stInitCodeTest",
+			"subtests": {
+				"OutOfGasContractCreation": {
+					"subnumbers": ["4"],
+					"chain": "Constantinople (test)"
+				}
+			}
+		},
+		{
+			"reference": "9590",
+			"failing": "stPreCompiledContracts",
+			"subtests": {
+				"modexp": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				}
+			}
+		},
+		{
+			"reference": "9590",
+			"failing": "stRevertTest",
+			"subtests": {
+				"LoopCallsDepthThenRevert3": {
+					"subnumbers": ["1"],
+					"chain": "Constantinople (test)"
+				},
+				"RevertOpcodeCreate": {
+					"subnumbers": ["1"],
+					"chain": "Constantinople (test)"
+				},
+				"RevertSubCallStorageOOG2": {
+					"subnumbers": ["1","3"],
+					"chain": "Constantinople (test)"
+				},
+				"RevertDepthCreateOOG": {
+					"subnumbers": ["3","4"],
+					"chain": "Constantinople (test)"
+				},
+				"RevertOpcodeMultipleSubCalls": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"RevertOpcodeDirectCall": {
+					"subnumbers": ["1","2"],
+					"chain": "Constantinople (test)"
+				},
+				"LoopCallsDepthThenRevert2": {
+					"subnumbers": ["1"],
+					"chain": "Constantinople (test)"
+				},
+				"RevertDepth2": {
+					"subnumbers": ["1"],
+					"chain": "Constantinople (test)"
+				},
+				"RevertRemoteSubCallStorageOOG2": {
+					"subnumbers": ["1","2"],
+					"chain": "Constantinople (test)"
+				},
+				"RevertDepthCreateAddressCollision": {
+					"subnumbers": ["3","4"],
+					"chain": "Constantinople (test)"
+				}
+			}
+		},
+		{
+			"reference": "9590",
+			"failing": "stStaticCall",
+			"subtests": {
+				"static_RevertDepth2": {
+					"subnumbers": ["1","3"],
+					"chain": "Constantinople (test)"
+				},
+				"static_CheckOpcodes4": {
+					"subnumbers": ["3"],
+					"chain": "Constantinople (test)"
+				},
+				"static_CheckOpcodes3": {
+					"subnumbers": ["5","6","7","8"],
+					"chain": "Constantinople (test)"
+				},
+				"static_callBasic": {
+					"subnumbers": ["1","2"],
+					"chain": "Constantinople (test)"
+				},
+				"static_CheckOpcodes2": {
+					"subnumbers": ["5","6","7","8"],
+					"chain": "Constantinople (test)"
+				},
+				"static_callCreate": {
+					"subnumbers": ["2"],
+					"chain": "Constantinople (test)"
+				}
+			}
+		},
+		{
+			"reference": "https://github.com/ethereum/tests/issues/512",
+			"failing": "stZeroKnowledge",
+			"subtests": {
+				"pointAddTrunc": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"pointAdd": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"pointMulAdd": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"pointMulAdd2": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				}
+			}
+		},
+		{
+			"reference": "9590",
+			"failing": "stCreate2Test",
+			"subtests": {
+				"call_then_create2_successful_then_returndatasize": {
+					"subnumbers": ["1"],
+					"chain": "Constantinople (test)"
+				},
+				"returndatacopy_afterFailing_create": {
+					"subnumbers": ["1"],
+					"chain": "Constantinople (test)"
+				},
+				"create2checkFieldsInInitcode": {
+					"subnumbers": ["1","2","3","5","6","7"],
+					"chain": "Constantinople (test)"
+				},
+				"Create2Recursive": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"create2collisionBalance": {
+					"subnumbers": ["2","3"],
+					"chain": "Constantinople (test)"
+				},
+				"create2InitCodes": {
+					"subnumbers": ["1","5","6","7","8","9"],
+					"chain": "Constantinople (test)"
+				},
+				"Create2OOGafterInitCode": {
+					"subnumbers": ["2"],
+					"chain": "Constantinople (test)"
+				},
+				"CreateMessageRevertedOOGInInit": {
+					"subnumbers": ["2"],
+					"chain": "Constantinople (test)"
+				},
+				"returndatacopy_following_revert_in_create": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"create2collisionSelfdestructed": {
+					"subnumbers": ["2"],
+					"chain": "Constantinople (test)"
+				},
+				"returndatacopy_0_0_following_successful_create": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"Create2OnDepth1023": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"Create2OOGafterInitCodeReturndata2": {
+					"subnumbers": ["2"],
+					"chain": "Constantinople (test)"
+				},
+				"RevertOpcodeInCreateReturns": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"CREATE2_ContractSuicideDuringInit_ThenStoreThenReturn": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"returndatasize_following_successful_create": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"call_outsize_then_create2_successful_then_returndatasize": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"CreateMessageReverted": {
+					"subnumbers": ["2"],
+					"chain": "Constantinople (test)"
+				},
+				"CREATE2_Suicide": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"Create2OOGafterInitCodeRevert": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"Create2OnDepth1024": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				},
+				"create2collisionStorage": {
+					"subnumbers": ["2","3"],
+					"chain": "Constantinople (test)"
+				},
+				"create2callPrecompiles": {
+					"subnumbers": ["*"],
+					"chain": "Constantinople (test)"
+				}
+			}
+		}
+	]
+}
--- a/ethcore/res/instant_seal.json
+++ b/ethcore/res/instant_seal.json
@@ -16,7 +16,6 @@
 		"eip161dTransition": "0x0",
 		"eip155Transition": "0x0",
 		"eip98Transition": "0x7fffffffffffff",
-		"eip86Transition": "0x7fffffffffffff",
 		"maxCodeSize": 24576,
 		"maxCodeSizeTransition": "0x0",
 		"eip140Transition": "0x0",
--- a/ethcore/res/null.json
+++ b/ethcore/res/null.json
@@ -11,7 +11,6 @@
 		"maximumExtraDataSize": "0x20",
 		"minGasLimit": "0x1388",
 		"networkID" : "0x2",
-		"eip86Transition": "0x7fffffffffffff",
 		"eip140Transition": "0x0",
 		"eip211Transition": "0x0",
 		"eip214Transition": "0x0",
--- a/ethcore/res/wasm-tests
+++ b/ethcore/res/wasm-tests
--- a/ethcore/src/blockchain/blockchain.rs
+++ b/ethcore/src/blockchain/blockchain.rs
@@ -35,6 +35,7 @@ use encoded;
 use engines::epoch::{Transition as EpochTransition, PendingTransition as PendingEpochTransition};
 use engines::ForkChoice;
 use ethereum_types::{H256, Bloom, BloomRef, U256};
+use error::Error as EthcoreError;
 use header::*;
 use heapsize::HeapSizeOf;
 use itertools::Itertools;
@@ -60,6 +61,21 @@ pub trait BlockChainDB: Send + Sync {

 	/// Trace blooms database.
 	fn trace_blooms(&self) -> &blooms_db::Database;
+
+	/// Restore the DB from the given path
+	fn restore(&self, new_db: &str) -> Result<(), EthcoreError> {
+		// First, close the Blooms databases
+		self.blooms().close()?;
+		self.trace_blooms().close()?;
+
+		// Restore the key_value DB
+		self.key_value().restore(new_db)?;
+
+		// Re-open the Blooms databases
+		self.blooms().reopen()?;
+		self.trace_blooms().reopen()?;
+		Ok(())
+	}
 }

 /// Generic database handler. This trait contains one function `open`. When called, it opens database with a
--- a/ethcore/src/client/client.rs
+++ b/ethcore/src/client/client.rs
@@ -1296,9 +1296,7 @@ impl snapshot::DatabaseRestore for Client {
 		let mut tracedb = self.tracedb.write();
 		self.importer.miner.clear();
 		let db = self.db.write();
-		db.key_value().restore(new_db)?;
-		db.blooms().reopen()?;
-		db.trace_blooms().reopen()?;
+		db.restore(new_db)?;

 		let cache_size = state_db.cache_size();
 		*state_db = StateDB::new(journaldb::new(db.key_value().clone(), self.pruning, ::db::COL_STATE), cache_size);
@@ -1351,7 +1349,7 @@ impl BlockInfo for Client {
 	}

 	fn code_hash(&self, address: &Address, id: BlockId) -> Option<H256> {
-		self.state_at(id).and_then(|s| s.code_hash(address).ok())
+		self.state_at(id).and_then(|s| s.code_hash(address).unwrap_or(None))
 	}
 }

@@ -2022,10 +2020,6 @@ impl BlockChainClient for Client {
 	fn registrar_address(&self) -> Option<Address> {
 		self.registrar_address.clone()
 	}
-
-	fn eip86_transition(&self) -> u64 {
-		self.engine().params().eip86_transition
-	}
 }

 impl IoClient for Client {
@@ -2317,14 +2311,13 @@ impl ProvingBlockChainClient for Client {
 		env_info.gas_limit = transaction.gas.clone();
 		let mut jdb = self.state_db.read().journal_db().boxed_clone();

-		state::prove_transaction(
+		state::prove_transaction_virtual(
 			jdb.as_hashdb_mut(),
 			header.state_root().clone(),
 			&transaction,
 			self.engine.machine(),
 			&env_info,
 			self.factories.clone(),
-			false,
 		)
 	}

--- a/ethcore/src/client/evm_test_client.rs
+++ b/ethcore/src/client/evm_test_client.rs
@@ -60,7 +60,7 @@ impl fmt::Display for EvmTestError {
 }

 use ethereum;
-use ethjson::state::test::ForkSpec;
+use ethjson::spec::ForkSpec;

 /// Simplified, single-block EVM test client.
 pub struct EvmTestClient<'a> {
@@ -69,12 +69,12 @@ pub struct EvmTestClient<'a> {
 }

 impl<'a> fmt::Debug for EvmTestClient<'a> {
-    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
-        fmt.debug_struct("EvmTestClient")
-            .field("state", &self.state)
-            .field("spec", &self.spec.name)
-            .finish()
-    }
+	fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
+		fmt.debug_struct("EvmTestClient")
+			.field("state", &self.state)
+			.field("spec", &self.spec.name)
+			.finish()
+	}
 }

 impl<'a> EvmTestClient<'a> {
@@ -86,9 +86,9 @@ impl<'a> EvmTestClient<'a> {
 			ForkSpec::EIP150 => Some(ethereum::new_eip150_test()),
 			ForkSpec::EIP158 => Some(ethereum::new_eip161_test()),
 			ForkSpec::Byzantium => Some(ethereum::new_byzantium_test()),
+			ForkSpec::Constantinople => Some(ethereum::new_constantinople_test()),
 			ForkSpec::EIP158ToByzantiumAt5 => Some(ethereum::new_transition_test()),
 			ForkSpec::FrontierToHomesteadAt5 | ForkSpec::HomesteadToDaoAt5 | ForkSpec::HomesteadToEIP150At5 => None,
-			_ => None,
 		}
 	}

@@ -205,7 +205,7 @@ impl<'a> EvmTestClient<'a> {
 	) -> TransactResult<T::Output, V::Output> {
 		let initial_gas = transaction.gas;
 		// Verify transaction
-		let is_ok = transaction.verify_basic(true, None, env_info.number >= self.spec.engine.params().eip86_transition);
+		let is_ok = transaction.verify_basic(true, None, false);
 		if let Err(error) = is_ok {
 			return TransactResult::Err {
 				state_root: *self.state.root(),
@@ -217,9 +217,27 @@ impl<'a> EvmTestClient<'a> {
 		let result = self.state.apply_with_tracing(&env_info, self.spec.engine.machine(), &transaction, tracer, vm_tracer);
 		let scheme = self.spec.engine.machine().create_address_scheme(env_info.number);

+		// Touch the coinbase at the end of the test to simulate
+		// miner reward.
+		// Details: https://github.com/paritytech/parity-ethereum/issues/9431
+		let schedule = self.spec.engine.machine().schedule(env_info.number);
+		self.state.add_balance(&env_info.author, &0.into(), if schedule.no_empty {
+			state::CleanupMode::NoEmpty
+		} else {
+			state::CleanupMode::ForceCreate
+		}).ok();
+		// Touching also means that we should remove the account if it's within eip161
+		// conditions.
+		self.state.kill_garbage(
+			&vec![env_info.author].into_iter().collect(),
+			schedule.kill_empty,
+			&None,
+			false
+		).ok();
+		self.state.commit().ok();
+
 		match result {
 			Ok(result) => {
-				self.state.commit().ok();
 				TransactResult::Ok {
 					state_root: *self.state.root(),
 					gas_left: initial_gas - result.receipt.gas_used,
--- a/ethcore/src/client/test_client.rs
+++ b/ethcore/src/client/test_client.rs
@@ -845,8 +845,6 @@ impl BlockChainClient for TestBlockChainClient {
 	}

 	fn registrar_address(&self) -> Option<Address> { None }
-
-	fn eip86_transition(&self) -> u64 { u64::max_value() }
 }

 impl IoClient for TestBlockChainClient {
--- a/ethcore/src/client/traits.rs
+++ b/ethcore/src/client/traits.rs
@@ -377,9 +377,6 @@ pub trait BlockChainClient : Sync + Send + AccountData + BlockChain + CallContra

 	/// Get the address of the registry itself.
 	fn registrar_address(&self) -> Option<Address>;
-
-	/// Get the EIP-86 transition block number.
-	fn eip86_transition(&self) -> u64;
 }

 /// Provides `reopen_block` method
--- a/ethcore/src/engines/authority_round/mod.rs
+++ b/ethcore/src/engines/authority_round/mod.rs
@@ -984,8 +984,10 @@ impl Engine<EthereumMachine> for AuthorityRound {
 					self.clear_empty_steps(parent_step);

 					// report any skipped primaries between the parent block and
-					// the block we're sealing
-					self.report_skipped(header, step, u64::from(parent_step) as usize, &*validators, set_number);
+					// the block we're sealing, unless we have empty steps enabled
+					if header.number() < self.empty_steps_transition {
+						self.report_skipped(header, step, u64::from(parent_step) as usize, &*validators, set_number);
+					}

 					let mut fields = vec![
 						encode(&step).into_vec(),
--- a/ethcore/src/engines/tendermint/mod.rs
+++ b/ethcore/src/engines/tendermint/mod.rs
@@ -693,7 +693,6 @@ impl Engine<EthereumMachine> for Tendermint {
 	}

 	fn stop(&self) {
-		self.step_service.stop()
 	}

 	fn is_proposal(&self, header: &Header) -> bool {
--- a/ethcore/src/ethereum/ethash.rs
+++ b/ethcore/src/ethereum/ethash.rs
@@ -36,8 +36,9 @@ use machine::EthereumMachine;
 const SNAPSHOT_BLOCKS: u64 = 5000;
 /// Maximum number of blocks allowed in an ethash snapshot.
 const MAX_SNAPSHOT_BLOCKS: u64 = 30000;
-
+/// Default number of blocks the difficulty bomb is delayed in EIP-{649,1234}
 const DEFAULT_EIP649_DELAY: u64 = 3_000_000;
+const DEFAULT_EIP1234_DELAY: u64 = 2_000_000;

 /// Ethash specific seal
 #[derive(Debug, PartialEq)]
@@ -120,6 +121,12 @@ pub struct EthashParams {
 	pub eip649_delay: u64,
 	/// EIP-649 base reward.
 	pub eip649_reward: Option<U256>,
+	/// EIP-1234 transition block.
+	pub eip1234_transition: u64,
+	/// EIP-1234 bomb delay.
+	pub eip1234_delay: u64,
+	/// EIP-1234 base reward.
+	pub eip1234_reward: Option<U256>,
 	/// EXPIP-2 block height
 	pub expip2_transition: u64,
 	/// EXPIP-2 duration limit
@@ -152,6 +159,9 @@ impl From<ethjson::spec::EthashParams> for EthashParams {
 			eip649_transition: p.eip649_transition.map_or(u64::max_value(), Into::into),
 			eip649_delay: p.eip649_delay.map_or(DEFAULT_EIP649_DELAY, Into::into),
 			eip649_reward: p.eip649_reward.map(Into::into),
+			eip1234_transition: p.eip1234_transition.map_or(u64::max_value(), Into::into),
+			eip1234_delay: p.eip1234_delay.map_or(DEFAULT_EIP1234_DELAY, Into::into),
+			eip1234_reward: p.eip1234_reward.map(Into::into),
 			expip2_transition: p.expip2_transition.map_or(u64::max_value(), Into::into),
 			expip2_duration_limit: p.expip2_duration_limit.map_or(30, Into::into),
 		}
@@ -233,8 +243,10 @@ impl Engine<EthereumMachine> for Arc<Ethash> {

 		let mut rewards = Vec::new();

-		// Applies EIP-649 reward.
-		let reward = if number >= self.ethash_params.eip649_transition {
+		// Applies EIP-{649,1234} reward, defaults to block_reward.
+		let reward = if number >= self.ethash_params.eip1234_transition {
+			self.ethash_params.eip1234_reward.unwrap_or(self.ethash_params.block_reward)
+		} else if number >= self.ethash_params.eip649_transition {
 			self.ethash_params.eip649_reward.unwrap_or(self.ethash_params.block_reward)
 		} else {
 			self.ethash_params.block_reward
@@ -427,6 +439,9 @@ impl Ethash {
 		if header.number() < self.ethash_params.bomb_defuse_transition {
 			if header.number() < self.ethash_params.ecip1010_pause_transition {
 				let mut number = header.number();
+				if number >= self.ethash_params.eip1234_transition {
+					number = number.saturating_sub(self.ethash_params.eip1234_delay);
+				}
 				if number >= self.ethash_params.eip649_transition {
 					number = number.saturating_sub(self.ethash_params.eip649_delay);
 				}
@@ -510,6 +525,9 @@ mod tests {
 			eip649_transition: u64::max_value(),
 			eip649_delay: 3_000_000,
 			eip649_reward: None,
+			eip1234_transition: u64::max_value(),
+			eip1234_delay: 2_000_000,
+			eip1234_reward: None,
 			expip2_transition: u64::max_value(),
 			expip2_duration_limit: 30,
 		}
--- a/ethcore/src/ethereum/mod.rs
+++ b/ethcore/src/ethereum/mod.rs
@@ -151,6 +151,9 @@ pub fn new_frontier_test_machine() -> EthereumMachine { load_machine(include_byt
 /// Create a new Foundation Homestead-era chain spec as though it never changed from Frontier.
 pub fn new_homestead_test_machine() -> EthereumMachine { load_machine(include_bytes!("../../res/ethereum/homestead_test.json")) }

+/// Create a new Foundation Homestead-EIP210-era chain spec as though it never changed from Homestead/Frontier.
+pub fn new_eip210_test_machine() -> EthereumMachine { load_machine(include_bytes!("../../res/ethereum/eip210_test.json")) }
+
 /// Create a new Foundation Byzantium era spec.
 pub fn new_byzantium_test_machine() -> EthereumMachine { load_machine(include_bytes!("../../res/ethereum/byzantium_test.json")) }

--- a/ethcore/src/executive.rs
+++ b/ethcore/src/executive.rs
@@ -61,10 +61,13 @@ pub fn contract_address(address_scheme: CreateContractAddress, sender: &Address,
 			stream.append(nonce);
 			(From::from(keccak(stream.as_raw())), None)
 		},
-		CreateContractAddress::FromCodeHash => {
+		CreateContractAddress::FromSenderSaltAndCodeHash(salt) => {
 			let code_hash = keccak(code);
-			let mut buffer = [0xffu8; 20 + 32];
-			&mut buffer[20..].copy_from_slice(&code_hash[..]);
+			let mut buffer = [0u8; 1 + 20 + 32 + 32];
+			buffer[0] = 0xff;
+			&mut buffer[1..(1+20)].copy_from_slice(&sender[..]);
+			&mut buffer[(1+20)..(1+20+32)].copy_from_slice(&salt[..]);
+			&mut buffer[(1+20+32)..].copy_from_slice(&code_hash[..]);
 			(From::from(keccak(&buffer[..])), Some(code_hash))
 		},
 		CreateContractAddress::FromSenderAndCodeHash => {
@@ -285,7 +288,7 @@ impl<'a, B: 'a + StateBackend> Executive<'a, B> {
 		let mut substate = Substate::new();

 		// NOTE: there can be no invalid transactions from this point.
-		if !schedule.eip86 || !t.is_unsigned() {
+		if !schedule.keep_unsigned_nonce || !t.is_unsigned() {
 			self.state.inc_nonce(&sender)?;
 		}
 		self.state.sub_balance(&sender, &U256::from(gas_cost), &mut substate.to_cleanup_mode(&schedule))?;
@@ -320,7 +323,7 @@ impl<'a, B: 'a + StateBackend> Executive<'a, B> {
 					gas_price: t.gas_price,
 					value: ActionValue::Transfer(t.value),
 					code: self.state.code(address)?,
-					code_hash: Some(self.state.code_hash(address)?),
+					code_hash: self.state.code_hash(address)?,
 					data: Some(t.data.clone()),
 					call_type: CallType::Call,
 					params_type: vm::ParamsType::Separate,
@@ -557,9 +560,9 @@ impl<'a, B: 'a + StateBackend> Executive<'a, B> {
 		let prev_bal = self.state.balance(&params.address)?;
 		if let ActionValue::Transfer(val) = params.value {
 			self.state.sub_balance(&params.sender, &val, &mut substate.to_cleanup_mode(&schedule))?;
-			self.state.new_contract(&params.address, val + prev_bal, nonce_offset);
+			self.state.new_contract(&params.address, val + prev_bal, nonce_offset)?;
 		} else {
-			self.state.new_contract(&params.address, prev_bal, nonce_offset);
+			self.state.new_contract(&params.address, prev_bal, nonce_offset)?;
 		}

 		let trace_info = tracer.prepare_trace_create(&params);
@@ -610,7 +613,7 @@ impl<'a, B: 'a + StateBackend> Executive<'a, B> {
 		let schedule = self.machine.schedule(self.info.number);

 		// refunds from SSTORE nonzero -> zero
-		let sstore_refunds = U256::from(schedule.sstore_refund_gas) * substate.sstore_clears_count;
+		let sstore_refunds = substate.sstore_clears_refund;
 		// refunds from contract suicides
 		let suicide_refunds = U256::from(schedule.suicide_refund_gas) * U256::from(substate.suicides.len());
 		let refunds_bound = sstore_refunds + suicide_refunds;
@@ -1584,6 +1587,65 @@ mod tests {
 		assert_eq!(state.storage_at(&contract_address, &H256::from(&U256::zero())).unwrap(), H256::from(&U256::from(0)));
 	}

+	evm_test!{test_eip1283: test_eip1283_int}
+	fn test_eip1283(factory: Factory) {
+		let x1 = Address::from(0x1000);
+		let x2 = Address::from(0x1001);
+		let y1 = Address::from(0x2001);
+		let y2 = Address::from(0x2002);
+		let operating_address = Address::from(0);
+		let k = H256::new();
+
+		let mut state = get_temp_state_with_factory(factory.clone());
+		state.new_contract(&x1, U256::zero(), U256::from(1)).unwrap();
+		state.init_code(&x1, "600160005560006000556001600055".from_hex().unwrap()).unwrap();
+		state.new_contract(&x2, U256::zero(), U256::from(1)).unwrap();
+		state.init_code(&x2, "600060005560016000556000600055".from_hex().unwrap()).unwrap();
+		state.new_contract(&y1, U256::zero(), U256::from(1)).unwrap();
+		state.init_code(&y1, "600060006000600061100062fffffff4".from_hex().unwrap()).unwrap();
+		state.new_contract(&y2, U256::zero(), U256::from(1)).unwrap();
+		state.init_code(&y2, "600060006000600061100162fffffff4".from_hex().unwrap()).unwrap();
+
+		let info = EnvInfo::default();
+		let machine = ::ethereum::new_constantinople_test_machine();
+
+		assert_eq!(state.storage_at(&operating_address, &k).unwrap(), H256::from(U256::from(0)));
+		// Test a call via top-level -> y1 -> x1
+		let (FinalizationResult { gas_left, .. }, refund, gas) = {
+			let gas = U256::from(0xffffffffffu64);
+			let mut params = ActionParams::default();
+			params.code = Some(Arc::new("6001600055600060006000600061200163fffffffff4".from_hex().unwrap()));
+			params.gas = gas;
+			let mut substate = Substate::new();
+			let mut ex = Executive::new(&mut state, &info, &machine);
+			let res = ex.call(params, &mut substate, BytesRef::Fixed(&mut []), &mut NoopTracer, &mut NoopVMTracer).unwrap();
+
+			(res, substate.sstore_clears_refund, gas)
+		};
+		let gas_used = gas - gas_left;
+		// sstore: 0 -> (1) -> () -> (1 -> 0 -> 1)
+		assert_eq!(gas_used, U256::from(41860));
+		assert_eq!(refund, U256::from(19800));
+
+		assert_eq!(state.storage_at(&operating_address, &k).unwrap(), H256::from(U256::from(1)));
+		// Test a call via top-level -> y2 -> x2
+		let (FinalizationResult { gas_left, .. }, refund, gas) = {
+			let gas = U256::from(0xffffffffffu64);
+			let mut params = ActionParams::default();
+			params.code = Some(Arc::new("6001600055600060006000600061200263fffffffff4".from_hex().unwrap()));
+			params.gas = gas;
+			let mut substate = Substate::new();
+			let mut ex = Executive::new(&mut state, &info, &machine);
+			let res = ex.call(params, &mut substate, BytesRef::Fixed(&mut []), &mut NoopTracer, &mut NoopVMTracer).unwrap();
+
+			(res, substate.sstore_clears_refund, gas)
+		};
+		let gas_used = gas - gas_left;
+		// sstore: 1 -> (1) -> () -> (0 -> 1 -> 0)
+		assert_eq!(gas_used, U256::from(11860));
+		assert_eq!(refund, U256::from(19800));
+	}
+
 	fn wasm_sample_code() -> Arc<Vec<u8>> {
 		Arc::new(
 			"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"
--- a/ethcore/src/externalities.rs
+++ b/ethcore/src/externalities.rs
@@ -111,6 +111,10 @@ impl<'a, T: 'a, V: 'a, B: 'a> Externalities<'a, T, V, B>
 impl<'a, T: 'a, V: 'a, B: 'a> Ext for Externalities<'a, T, V, B>
 	where T: Tracer, V: VMTracer, B: StateBackend
 {
+	fn initial_storage_at(&self, key: &H256) -> vm::Result<H256> {
+		self.state.checkpoint_storage_at(0, &self.origin_info.address, key).map(|v| v.unwrap_or(H256::zero())).map_err(Into::into)
+	}
+
 	fn storage_at(&self, key: &H256) -> vm::Result<H256> {
 		self.state.storage_at(&self.origin_info.address, key).map_err(Into::into)
 	}
@@ -163,7 +167,7 @@ impl<'a, T: 'a, V: 'a, B: 'a> Ext for Externalities<'a, T, V, B>
 				gas: self.machine.params().eip210_contract_gas,
 				gas_price: 0.into(),
 				code: code,
-				code_hash: Some(code_hash),
+				code_hash: code_hash,
 				data: Some(H256::from(number).to_vec()),
 				call_type: CallType::Call,
 				params_type: vm::ParamsType::Separate,
@@ -219,7 +223,7 @@ impl<'a, T: 'a, V: 'a, B: 'a> Ext for Externalities<'a, T, V, B>
 		};

 		if !self.static_flag {
-			if !self.schedule.eip86 || params.sender != UNSIGNED_SENDER {
+			if !self.schedule.keep_unsigned_nonce || params.sender != UNSIGNED_SENDER {
 				if let Err(e) = self.state.inc_nonce(&self.origin_info.address) {
 					debug!(target: "ext", "Database corruption encountered: {:?}", e);
 					return ContractCreateResult::Failed
@@ -270,7 +274,7 @@ impl<'a, T: 'a, V: 'a, B: 'a> Ext for Externalities<'a, T, V, B>
 			gas: *gas,
 			gas_price: self.origin_info.gas_price,
 			code: code,
-			code_hash: Some(code_hash),
+			code_hash: code_hash,
 			data: Some(data.to_vec()),
 			call_type: call_type,
 			params_type: vm::ParamsType::Separate,
@@ -289,12 +293,16 @@ impl<'a, T: 'a, V: 'a, B: 'a> Ext for Externalities<'a, T, V, B>
 		}
 	}

-	fn extcode(&self, address: &Address) -> vm::Result<Arc<Bytes>> {
-		Ok(self.state.code(address)?.unwrap_or_else(|| Arc::new(vec![])))
+	fn extcode(&self, address: &Address) -> vm::Result<Option<Arc<Bytes>>> {
+		Ok(self.state.code(address)?)
 	}

-	fn extcodesize(&self, address: &Address) -> vm::Result<usize> {
-		Ok(self.state.code_size(address)?.unwrap_or(0))
+	fn extcodehash(&self, address: &Address) -> vm::Result<Option<H256>> {
+		Ok(self.state.code_hash(address)?)
+	}
+
+	fn extcodesize(&self, address: &Address) -> vm::Result<Option<usize>> {
+		Ok(self.state.code_size(address)?)
 	}

 	fn ret(mut self, gas: &U256, data: &ReturnData, apply_state: bool) -> vm::Result<U256>
@@ -390,8 +398,12 @@ impl<'a, T: 'a, V: 'a, B: 'a> Ext for Externalities<'a, T, V, B>
 		self.depth
 	}

-	fn inc_sstore_clears(&mut self) {
-		self.substate.sstore_clears_count = self.substate.sstore_clears_count + U256::one();
+	fn add_sstore_refund(&mut self, value: U256) {
+		self.substate.sstore_clears_refund = self.substate.sstore_clears_refund.saturating_add(value);
+	}
+
+	fn sub_sstore_refund(&mut self, value: U256) {
+		self.substate.sstore_clears_refund = self.substate.sstore_clears_refund.saturating_sub(value);
 	}

 	fn trace_next_instruction(&mut self, pc: usize, instruction: u8, current_gas: U256) -> bool {
@@ -570,4 +582,44 @@ mod tests {

 		assert_eq!(setup.sub_state.suicides.len(), 1);
 	}
+
+	#[test]
+	fn can_create() {
+		use std::str::FromStr;
+
+		let mut setup = TestSetup::new();
+		let state = &mut setup.state;
+		let mut tracer = NoopTracer;
+		let mut vm_tracer = NoopVMTracer;
+
+		let address = {
+			let mut ext = Externalities::new(state, &setup.env_info, &setup.machine, 0, get_test_origin(), &mut setup.sub_state, OutputPolicy::InitContract(None), &mut tracer, &mut vm_tracer, false);
+			match ext.create(&U256::max_value(), &U256::zero(), &[], CreateContractAddress::FromSenderAndNonce) {
+				ContractCreateResult::Created(address, _) => address,
+				_ => panic!("Test create failed; expected Created, got Failed/Reverted."),
+			}
+		};
+
+		assert_eq!(address, Address::from_str("bd770416a3345f91e4b34576cb804a576fa48eb1").unwrap());
+	}
+
+	#[test]
+	fn can_create2() {
+		use std::str::FromStr;
+
+		let mut setup = TestSetup::new();
+		let state = &mut setup.state;
+		let mut tracer = NoopTracer;
+		let mut vm_tracer = NoopVMTracer;
+
+		let address = {
+			let mut ext = Externalities::new(state, &setup.env_info, &setup.machine, 0, get_test_origin(), &mut setup.sub_state, OutputPolicy::InitContract(None), &mut tracer, &mut vm_tracer, false);
+			match ext.create(&U256::max_value(), &U256::zero(), &[], CreateContractAddress::FromSenderSaltAndCodeHash(H256::default())) {
+				ContractCreateResult::Created(address, _) => address,
+				_ => panic!("Test create failed; expected Created, got Failed/Reverted."),
+			}
+		};
+
+		assert_eq!(address, Address::from_str("e33c0c7f7df4809055c3eba6c09cfe4baf1bd9e0").unwrap());
+	}
 }
--- a/ethcore/src/json_tests/chain.rs
+++ b/ethcore/src/json_tests/chain.rs
@@ -23,6 +23,7 @@ use ethjson;
 use miner::Miner;
 use io::IoChannel;
 use test_helpers;
+use super::SKIP_TEST_STATE;

 use super::HookType;

@@ -36,12 +37,20 @@ pub fn run_test_file<H: FnMut(&str, HookType)>(p: &Path, h: &mut H) {
 	::json_tests::test_common::run_test_file(p, json_chain_test, h)
 }

+fn skip_test(name: &String) -> bool {
+	SKIP_TEST_STATE.block.iter().any(|block_test|block_test.subtests.contains(name))
+}
+
 pub fn json_chain_test<H: FnMut(&str, HookType)>(json_data: &[u8], start_stop_hook: &mut H) -> Vec<String> {
 	::ethcore_logger::init_log();
 	let tests = ethjson::blockchain::Test::load(json_data).unwrap();
 	let mut failed = Vec::new();

 	for (name, blockchain) in tests.into_iter() {
+		if skip_test(&name) {
+			println!("   - {} | {:?} Ignoring tests because in skip list", name, blockchain.network);
+			continue;
+		}
 		start_stop_hook(&name, HookType::OnStart);

 		let mut fail = false;
@@ -122,19 +131,24 @@ mod block_tests {
 	declare_test!{BlockchainTests_bcInvalidHeaderTest, "BlockchainTests/bcInvalidHeaderTest"}
 	declare_test!{BlockchainTests_bcMultiChainTest, "BlockchainTests/bcMultiChainTest"}
 	declare_test!{BlockchainTests_bcRandomBlockhashTest, "BlockchainTests/bcRandomBlockhashTest"}
+	declare_test!{BlockchainTests_bcStateTest, "BlockchainTests/bcStateTests"}
 	declare_test!{BlockchainTests_bcTotalDifficultyTest, "BlockchainTests/bcTotalDifficultyTest"}
 	declare_test!{BlockchainTests_bcUncleHeaderValidity, "BlockchainTests/bcUncleHeaderValidity"}
 	declare_test!{BlockchainTests_bcUncleTest, "BlockchainTests/bcUncleTest"}
 	declare_test!{BlockchainTests_bcValidBlockTest, "BlockchainTests/bcValidBlockTest"}
 	declare_test!{BlockchainTests_bcWalletTest, "BlockchainTests/bcWalletTest"}

+	declare_test!{BlockchainTests_GeneralStateTest_stArgsZeroOneBalance, "BlockchainTests/GeneralStateTests/stArgsZeroOneBalance/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stAttackTest, "BlockchainTests/GeneralStateTests/stAttackTest/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stBadOpcodeTest, "BlockchainTests/GeneralStateTests/stBadOpcode/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stBugsTest, "BlockchainTests/GeneralStateTests/stBugs/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stCallCodes, "BlockchainTests/GeneralStateTests/stCallCodes/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stCallCreateCallCodeTest, "BlockchainTests/GeneralStateTests/stCallCreateCallCodeTest/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stCallDelegateCodesCallCodeHomestead, "BlockchainTests/GeneralStateTests/stCallDelegateCodesCallCodeHomestead/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stCallDelegateCodesHomestead, "BlockchainTests/GeneralStateTests/stCallDelegateCodesHomestead/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stChangedEIP150, "BlockchainTests/GeneralStateTests/stChangedEIP150/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stCodeSizeLimit, "BlockchainTests/GeneralStateTests/stCodeSizeLimit/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stCreate2, "BlockchainTests/GeneralStateTests/stCreate2/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stCreateTest, "BlockchainTests/GeneralStateTests/stCreateTest/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stDelegatecallTestHomestead, "BlockchainTests/GeneralStateTests/stDelegatecallTestHomestead/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stEIP150singleCodeGasPrices, "BlockchainTests/GeneralStateTests/stEIP150singleCodeGasPrices/"}
@@ -149,12 +163,15 @@ mod block_tests {
 	declare_test!{BlockchainTests_GeneralStateTest_stMemoryTest, "BlockchainTests/GeneralStateTests/stMemoryTest/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stNonZeroCallsTest, "BlockchainTests/GeneralStateTests/stNonZeroCallsTest/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stPreCompiledContracts, "BlockchainTests/GeneralStateTests/stPreCompiledContracts/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stPreCompiledContracts2, "BlockchainTests/GeneralStateTests/stPreCompiledContracts2/"}
 	declare_test!{heavy => BlockchainTests_GeneralStateTest_stQuadraticComplexityTest, "BlockchainTests/GeneralStateTests/stQuadraticComplexityTest/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stRandom, "BlockchainTests/GeneralStateTests/stRandom/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stRandom2, "BlockchainTests/GeneralStateTests/stRandom2/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stRecursiveCreate, "BlockchainTests/GeneralStateTests/stRecursiveCreate/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stRefundTest, "BlockchainTests/GeneralStateTests/stRefundTest/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stReturnDataTest, "BlockchainTests/GeneralStateTests/stReturnDataTest/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stRevertTest, "BlockchainTests/GeneralStateTests/stRevertTest/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stShift, "BlockchainTests/GeneralStateTests/stShift/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stSolidityTest, "BlockchainTests/GeneralStateTests/stSolidityTest/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stSpecialTest, "BlockchainTests/GeneralStateTests/stSpecialTest/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stStackTests, "BlockchainTests/GeneralStateTests/stStackTests/"}
@@ -166,6 +183,7 @@ mod block_tests {
 	declare_test!{BlockchainTests_GeneralStateTest_stZeroCallsRevert, "BlockchainTests/GeneralStateTests/stZeroCallsRevert/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stZeroCallsTest, "BlockchainTests/GeneralStateTests/stZeroCallsTest/"}
 	declare_test!{BlockchainTests_GeneralStateTest_stZeroKnowledge, "BlockchainTests/GeneralStateTests/stZeroKnowledge/"}
+	declare_test!{BlockchainTests_GeneralStateTest_stZeroKnowledge2, "BlockchainTests/GeneralStateTests/stZeroKnowledge2/"}

 	declare_test!{BlockchainTests_TransitionTests_bcEIP158ToByzantium, "BlockchainTests/TransitionTests/bcEIP158ToByzantium/"}
 	declare_test!{BlockchainTests_TransitionTests_bcFrontierToHomestead, "BlockchainTests/TransitionTests/bcFrontierToHomestead/"}
--- a/ethcore/src/json_tests/difficulty.rs
+++ b/ethcore/src/json_tests/difficulty.rs
@@ -52,26 +52,62 @@ pub fn json_difficulty_test<H: FnMut(&str, HookType)>(json_data: &[u8], spec: Sp
 	vec![]
 }

-mod difficulty_test_byzantium {
-	use super::json_difficulty_test;
-	use json_tests::HookType;
+macro_rules! difficulty_json_test {
+	( $spec:ident ) => {

-	fn do_json_test<H: FnMut(&str, HookType)>(json_data: &[u8], h: &mut H) -> Vec<String> {
-		json_difficulty_test(json_data, ::ethereum::new_byzantium_test(), h)
-	}
-
-	declare_test!{DifficultyTests_difficultyByzantium, "BasicTests/difficultyByzantium.json"}
-}
-
-mod difficulty_test_foundation {
 	use super::json_difficulty_test;
 	use tempdir::TempDir;
 	use json_tests::HookType;

 	fn do_json_test<H: FnMut(&str, HookType)>(json_data: &[u8], h: &mut H) -> Vec<String> {
 		let tempdir = TempDir::new("").unwrap();
-		json_difficulty_test(json_data, ::ethereum::new_foundation(&tempdir.path()), h)
+		json_difficulty_test(json_data, ::ethereum::$spec(&tempdir.path()), h)
 	}

+	}
+}
+
+macro_rules! difficulty_json_test_nopath {
+	( $spec:ident ) => {
+
+	use super::json_difficulty_test;
+	use json_tests::HookType;
+
+	fn do_json_test<H: FnMut(&str, HookType)>(json_data: &[u8], h: &mut H) -> Vec<String> {
+		json_difficulty_test(json_data, ::ethereum::$spec(), h)
+	}
+
+	}
+}
+
+mod difficulty_test {
+	difficulty_json_test!(new_foundation);
+	declare_test!{DifficultyTests_difficulty, "BasicTests/difficulty.json"}
+}
+
+mod difficulty_test_byzantium {
+	difficulty_json_test_nopath!(new_byzantium_test);
+	declare_test!{DifficultyTests_difficultyByzantium, "BasicTests/difficultyByzantium.json"}
+}
+
+mod difficulty_test_foundation {
+	difficulty_json_test!(new_foundation);
 	declare_test!{DifficultyTests_difficultyMainNetwork, "BasicTests/difficultyMainNetwork.json"}
 }
+
+// Disabling Ropsten diff tests; waiting for upstream ethereum/tests Constantinople update
+//mod difficulty_test_ropsten {
+//	difficulty_json_test_nopath!(new_ropsten_test);
+//	declare_test!{DifficultyTests_difficultyRopsten, "BasicTests/difficultyRopsten.json"}
+//}
+
+mod difficulty_test_frontier {
+	difficulty_json_test_nopath!(new_frontier_test);
+	declare_test!{DifficultyTests_difficultyFrontier, "BasicTests/difficultyFrontier.json"}
+}
+
+mod difficulty_test_homestead {
+	difficulty_json_test_nopath!(new_homestead_test);
+	declare_test!{DifficultyTests_difficultyHomestead, "BasicTests/difficultyHomestead.json"}
+}
+
--- a/ethcore/src/json_tests/executive.rs
+++ b/ethcore/src/json_tests/executive.rs
@@ -111,6 +111,10 @@ impl<'a, T: 'a, V: 'a, B: 'a> Ext for TestExt<'a, T, V, B>
 		self.ext.storage_at(key)
 	}

+	fn initial_storage_at(&self, key: &H256) -> vm::Result<H256> {
+		self.ext.initial_storage_at(key)
+	}
+
 	fn set_storage(&mut self, key: H256, value: H256) -> vm::Result<()> {
 		self.ext.set_storage(key, value)
 	}
@@ -165,14 +169,18 @@ impl<'a, T: 'a, V: 'a, B: 'a> Ext for TestExt<'a, T, V, B>
 		MessageCallResult::Success(*gas, ReturnData::empty())
 	}

-	fn extcode(&self, address: &Address) -> vm::Result<Arc<Bytes>>  {
+	fn extcode(&self, address: &Address) -> vm::Result<Option<Arc<Bytes>>>  {
 		self.ext.extcode(address)
 	}

-	fn extcodesize(&self, address: &Address) -> vm::Result<usize> {
+	fn extcodesize(&self, address: &Address) -> vm::Result<Option<usize>> {
 		self.ext.extcodesize(address)
 	}

+	fn extcodehash(&self, address: &Address) -> vm::Result<Option<H256>> {
+		self.ext.extcodehash(address)
+	}
+
 	fn log(&mut self, topics: Vec<H256>, data: &[u8]) -> vm::Result<()> {
 		self.ext.log(topics, data)
 	}
@@ -201,8 +209,12 @@ impl<'a, T: 'a, V: 'a, B: 'a> Ext for TestExt<'a, T, V, B>
 		false
 	}

-	fn inc_sstore_clears(&mut self) {
-		self.ext.inc_sstore_clears()
+	fn add_sstore_refund(&mut self, value: U256) {
+		self.ext.add_sstore_refund(value)
+	}
+
+	fn sub_sstore_refund(&mut self, value: U256) {
+		self.ext.sub_sstore_refund(value)
 	}
 }

--- a/ethcore/src/json_tests/mod.rs
+++ b/ethcore/src/json_tests/mod.rs
@@ -24,10 +24,12 @@ mod executive;
 mod state;
 mod chain;
 mod trie;
+mod skip;

 #[cfg(test)]
 mod difficulty;

+
 pub use self::test_common::HookType;

 pub use self::transaction::run_test_path as run_transaction_test_path;
@@ -42,3 +44,4 @@ pub use self::trie::run_generic_test_path as run_generic_trie_test_path;
 pub use self::trie::run_generic_test_file as run_generic_trie_test_file;
 pub use self::trie::run_secure_test_path as run_secure_trie_test_path;
 pub use self::trie::run_secure_test_file as run_secure_trie_test_file;
+use self::skip::SKIP_TEST_STATE;
--- a/ethcore/src/json_tests/skip.rs
+++ b/ethcore/src/json_tests/skip.rs
@@ -0,0 +1,37 @@
+// Copyright 2015-2018 Parity Technologies (UK) Ltd.
+// This file is part of Parity.
+
+// Parity is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
+
+//! State tests to skip.
+
+use ethjson;
+
+#[cfg(all(not(test), feature = "ci-skip-tests"))]
+compile_error!("ci-skip-tests can only be enabled for testing builds.");
+
+#[cfg(feature="ci-skip-issue")]
+lazy_static!{
+	pub static ref SKIP_TEST_STATE: ethjson::test::SkipStates = {
+		let skip_data = include_bytes!("../../res/ethereum/tests-issues/currents.json");
+		ethjson::test::SkipStates::load(&skip_data[..]).expect("No invalid json allowed")
+	};
+}
+
+#[cfg(not(feature="ci-skip-issue"))]
+lazy_static!{
+	pub static ref SKIP_TEST_STATE: ethjson::test::SkipStates = {
+		ethjson::test::SkipStates::empty()
+	};
+}
--- a/ethcore/src/json_tests/state.rs
+++ b/ethcore/src/json_tests/state.rs
@@ -22,7 +22,7 @@ use client::{EvmTestClient, EvmTestError, TransactResult};
 use ethjson;
 use transaction::SignedTransaction;
 use vm::EnvInfo;
-
+use super::SKIP_TEST_STATE;
 use super::HookType;

 /// Run state jsontests on a given folder.
@@ -35,6 +35,18 @@ pub fn run_test_file<H: FnMut(&str, HookType)>(p: &Path, h: &mut H) {
 	::json_tests::test_common::run_test_file(p, json_chain_test, h)
 }

+fn skip_test(subname: &str, chain: &String, number: usize) -> bool {
+	SKIP_TEST_STATE.state.iter().any(|state_test|{
+		if let Some(subtest) = state_test.subtests.get(subname) {
+			chain == &subtest.chain &&
+			(subtest.subnumbers[0] == "*"
+				 || subtest.subnumbers.contains(&number.to_string()))
+		} else {
+			false
+		}
+	})
+}
+
 pub fn json_chain_test<H: FnMut(&str, HookType)>(json_data: &[u8], start_stop_hook: &mut H) -> Vec<String> {
 	::ethcore_logger::init_log();
 	let tests = ethjson::state::test::Test::load(json_data).unwrap();
@@ -60,6 +72,10 @@ pub fn json_chain_test<H: FnMut(&str, HookType)>(json_data: &[u8], start_stop_ho

 				for (i, state) in states.into_iter().enumerate() {
 					let info = format!("   - {} | {:?} ({}/{}) ...", name, spec_name, i + 1, total);
+					if skip_test(&name, &spec.name, i + 1) {
+						println!("{} in skip list : SKIPPED", info);
+						continue;
+					}

 					let post_root: H256 = state.hash.into();
 					let transaction: SignedTransaction = multitransaction.select(&state.indexes).into();
@@ -114,18 +130,24 @@ mod state_tests {
 		json_chain_test(json_data, h)
 	}

+	declare_test!{GeneralStateTest_stArgsZeroOneBalance, "GeneralStateTests/stArgsZeroOneBalance/"}
 	declare_test!{GeneralStateTest_stAttackTest, "GeneralStateTests/stAttackTest/"}
 	declare_test!{GeneralStateTest_stBadOpcodeTest, "GeneralStateTests/stBadOpcode/"}
+	declare_test!{GeneralStateTest_stBugs, "GeneralStateTests/stBugs/"}
 	declare_test!{GeneralStateTest_stCallCodes, "GeneralStateTests/stCallCodes/"}
+	declare_test!{GeneralStateTest_stCallCreateCallCodeTest, "GeneralStateTests/stCallCreateCallCodeTest/"}
 	declare_test!{GeneralStateTest_stCallDelegateCodesCallCodeHomestead, "GeneralStateTests/stCallDelegateCodesCallCodeHomestead/"}
 	declare_test!{GeneralStateTest_stCallDelegateCodesHomestead, "GeneralStateTests/stCallDelegateCodesHomestead/"}
 	declare_test!{GeneralStateTest_stChangedEIP150, "GeneralStateTests/stChangedEIP150/"}
+	declare_test!{GeneralStateTest_stCodeCopyTest, "GeneralStateTests/stCodeCopyTest/"}
 	declare_test!{GeneralStateTest_stCodeSizeLimit, "GeneralStateTests/stCodeSizeLimit/"}
+	declare_test!{GeneralStateTest_stCreate2Test, "GeneralStateTests/stCreate2/"}
 	declare_test!{GeneralStateTest_stCreateTest, "GeneralStateTests/stCreateTest/"}
 	declare_test!{GeneralStateTest_stDelegatecallTestHomestead, "GeneralStateTests/stDelegatecallTestHomestead/"}
 	declare_test!{GeneralStateTest_stEIP150singleCodeGasPrices, "GeneralStateTests/stEIP150singleCodeGasPrices/"}
 	declare_test!{GeneralStateTest_stEIP150Specific, "GeneralStateTests/stEIP150Specific/"}
 	declare_test!{GeneralStateTest_stEIP158Specific, "GeneralStateTests/stEIP158Specific/"}
+	declare_test!{GeneralStateTest_stEWASMTests, "GeneralStateTests/stEWASMTests/"}
 	declare_test!{GeneralStateTest_stExample, "GeneralStateTests/stExample/"}
 	declare_test!{GeneralStateTest_stHomesteadSpecific, "GeneralStateTests/stHomesteadSpecific/"}
 	declare_test!{GeneralStateTest_stInitCodeTest, "GeneralStateTests/stInitCodeTest/"}
@@ -135,12 +157,15 @@ mod state_tests {
 	declare_test!{GeneralStateTest_stMemoryTest, "GeneralStateTests/stMemoryTest/"}
 	declare_test!{GeneralStateTest_stNonZeroCallsTest, "GeneralStateTests/stNonZeroCallsTest/"}
 	declare_test!{GeneralStateTest_stPreCompiledContracts, "GeneralStateTests/stPreCompiledContracts/"}
+	declare_test!{GeneralStateTest_stPreCompiledContracts2, "GeneralStateTests/stPreCompiledContracts2/"}
 	declare_test!{heavy => GeneralStateTest_stQuadraticComplexityTest, "GeneralStateTests/stQuadraticComplexityTest/"}
 	declare_test!{GeneralStateTest_stRandom, "GeneralStateTests/stRandom/"}
+	declare_test!{GeneralStateTest_stRandom2, "GeneralStateTests/stRandom2/"}
 	declare_test!{GeneralStateTest_stRecursiveCreate, "GeneralStateTests/stRecursiveCreate/"}
 	declare_test!{GeneralStateTest_stRefundTest, "GeneralStateTests/stRefundTest/"}
 	declare_test!{GeneralStateTest_stReturnDataTest, "GeneralStateTests/stReturnDataTest/"}
 	declare_test!{GeneralStateTest_stRevertTest, "GeneralStateTests/stRevertTest/"}
+	declare_test!{GeneralStateTest_stShift, "GeneralStateTests/stShift/"}
 	declare_test!{GeneralStateTest_stSolidityTest, "GeneralStateTests/stSolidityTest/"}
 	declare_test!{GeneralStateTest_stSpecialTest, "GeneralStateTests/stSpecialTest/"}
 	declare_test!{GeneralStateTest_stStackTests, "GeneralStateTests/stStackTests/"}
@@ -152,4 +177,11 @@ mod state_tests {
 	declare_test!{GeneralStateTest_stZeroCallsRevert, "GeneralStateTests/stZeroCallsRevert/"}
 	declare_test!{GeneralStateTest_stZeroCallsTest, "GeneralStateTests/stZeroCallsTest/"}
 	declare_test!{GeneralStateTest_stZeroKnowledge, "GeneralStateTests/stZeroKnowledge/"}
+
+	// Attempts to send a transaction that requires more than current balance:
+	// Tx:
+	// https://github.com/ethereum/tests/blob/726b161ba8a739691006cc1ba080672bb50a9d49/GeneralStateTests/stZeroKnowledge2/ecmul_0-3_5616_28000_96.json#L170
+	// Balance:
+	// https://github.com/ethereum/tests/blob/726b161ba8a739691006cc1ba080672bb50a9d49/GeneralStateTests/stZeroKnowledge2/ecmul_0-3_5616_28000_96.json#L126
+	declare_test!{GeneralStateTest_stZeroKnowledge2, "GeneralStateTests/stZeroKnowledge2/"}
 }
--- a/ethcore/src/json_tests/test_common.rs
+++ b/ethcore/src/json_tests/test_common.rs
@@ -34,6 +34,18 @@ pub fn run_test_path<H: FnMut(&str, HookType)>(
 	p: &Path, skip: &[&'static str],
 	runner: fn(json_data: &[u8], start_stop_hook: &mut H) -> Vec<String>,
 	start_stop_hook: &mut H
+) {
+	let mut errors = Vec::new();
+	run_test_path_inner(p, skip, runner, start_stop_hook, &mut errors);
+	let empty: [String; 0] = [];
+	assert_eq!(errors, empty);
+}
+
+fn run_test_path_inner<H: FnMut(&str, HookType)>(
+	p: &Path, skip: &[&'static str],
+	runner: fn(json_data: &[u8], start_stop_hook: &mut H) -> Vec<String>,
+	start_stop_hook: &mut H,
+	errors: &mut Vec<String>
 ) {
 	let path = Path::new(p);
 	let s: HashSet<OsString> = skip.iter().map(|s| {
@@ -41,6 +53,7 @@ pub fn run_test_path<H: FnMut(&str, HookType)>(
 		os.push(".json");
 		os
 	}).collect();
+	let extension = path.extension().and_then(|s| s.to_str());
 	if path.is_dir() {
 		for p in read_dir(path).unwrap().filter_map(|e| {
 			let e = e.unwrap();
@@ -49,22 +62,42 @@ pub fn run_test_path<H: FnMut(&str, HookType)>(
 			} else {
 				Some(e.path())
 			}}) {
-			run_test_path(&p, skip, runner, start_stop_hook)
+			run_test_path_inner(&p, skip, runner, start_stop_hook, errors);
 		}
+	} else if extension == Some("swp") || extension == None {
+		// Ignore junk
 	} else {
 		let mut path = p.to_path_buf();
 		path.set_extension("json");
-		run_test_file(&path, runner, start_stop_hook)
+		run_test_file_append(&path, runner, start_stop_hook, errors)
 	}
 }

+fn run_test_file_append<H: FnMut(&str, HookType)>(
+	path: &Path,
+	runner: fn(json_data: &[u8], start_stop_hook: &mut H) -> Vec<String>,
+	start_stop_hook: &mut H,
+	errors: &mut Vec<String>
+) {
+	let mut data = Vec::new();
+	let mut file = match File::open(&path) {
+		Ok(file) => file,
+		Err(_) => panic!("Error opening test file at: {:?}", path),
+	};
+	file.read_to_end(&mut data).expect("Error reading test file");
+	errors.append(&mut runner(&data, start_stop_hook));
+}
+
 pub fn run_test_file<H: FnMut(&str, HookType)>(
 	path: &Path,
 	runner: fn(json_data: &[u8], start_stop_hook: &mut H) -> Vec<String>,
 	start_stop_hook: &mut H
 ) {
 	let mut data = Vec::new();
-	let mut file = File::open(&path).expect("Error opening test file");
+	let mut file = match File::open(&path) {
+		Ok(file) => file,
+		Err(_) => panic!("Error opening test file at: {:?}", path),
+	};
 	file.read_to_end(&mut data).expect("Error reading test file");
 	let results = runner(&data, start_stop_hook);
 	let empty: [String; 0] = [];
--- a/ethcore/src/json_tests/transaction.rs
+++ b/ethcore/src/json_tests/transaction.rs
@@ -16,10 +16,11 @@

 use std::path::Path;
 use super::test_common::*;
-use evm;
+use client::EvmTestClient;
+use header::Header;
 use ethjson;
 use rlp::Rlp;
-use transaction::{Action, UnverifiedTransaction, SignedTransaction};
+use transaction::UnverifiedTransaction;

 /// Run transaction jsontests on a given folder.
 pub fn run_test_path<H: FnMut(&str, HookType)>(p: &Path, skip: &[&'static str], h: &mut H) {
@@ -31,55 +32,61 @@ pub fn run_test_file<H: FnMut(&str, HookType)>(p: &Path, h: &mut H) {
 	::json_tests::test_common::run_test_file(p, do_json_test, h)
 }

+// Block number used to run the tests.
+// Make sure that all the specified features are activated.
+const BLOCK_NUMBER: u64 = 0x6ffffffffffffe;
+
 fn do_json_test<H: FnMut(&str, HookType)>(json_data: &[u8], start_stop_hook: &mut H) -> Vec<String> {
 	let tests = ethjson::transaction::Test::load(json_data).unwrap();
 	let mut failed = Vec::new();
-	let frontier_schedule = evm::Schedule::new_frontier();
-	let homestead_schedule = evm::Schedule::new_homestead();
-	let byzantium_schedule = evm::Schedule::new_byzantium();
 	for (name, test) in tests.into_iter() {
 		start_stop_hook(&name, HookType::OnStart);

-		let mut fail_unless = |cond: bool, title: &str| if !cond { failed.push(name.clone()); println!("Transaction failed: {:?}: {:?}", name, title); };
-
-		let number: Option<u64> = test.block_number.map(Into::into);
-		let schedule = match number {
-			None => &frontier_schedule,
-			Some(x) if x < 1_150_000 => &frontier_schedule,
-			Some(x) if x < 3_000_000 => &homestead_schedule,
-			Some(_) => &byzantium_schedule
-		};
-		let allow_chain_id_of_one = number.map_or(false, |n| n >= 2_675_000);
-		let allow_unsigned = number.map_or(false, |n| n >= 3_000_000);
-
-		let rlp: Vec<u8> = test.rlp.into();
-		let res = Rlp::new(&rlp)
-			.as_val()
-			.map_err(::error::Error::from)
-			.and_then(|t: UnverifiedTransaction| {
-				t.validate(schedule, schedule.have_delegate_call, allow_chain_id_of_one, allow_unsigned).map_err(Into::into)
-			});
-
-		fail_unless(test.transaction.is_none() == res.is_err(), "Validity different");
-		if let (Some(tx), Some(sender)) = (test.transaction, test.sender) {
-			let t = res.unwrap();
-			fail_unless(SignedTransaction::new(t.clone()).unwrap().sender() == sender.into(), "sender mismatch");
-			let is_acceptable_chain_id = match t.chain_id() {
-				None => true,
-				Some(1) if allow_chain_id_of_one => true,
-				_ => false,
+		for (spec_name, result) in test.post_state {
+			let spec = match EvmTestClient::spec_from_json(&spec_name) {
+				Some(spec) => spec,
+				None => {
+					println!("   - {} | {:?} Ignoring tests because of missing spec", name, spec_name);
+					continue;
+				}
 			};
-			fail_unless(is_acceptable_chain_id, "Network ID unacceptable");
-			let data: Vec<u8> = tx.data.into();
-			fail_unless(t.data == data, "data mismatch");
-			fail_unless(t.gas_price == tx.gas_price.into(), "gas_price mismatch");
-			fail_unless(t.nonce == tx.nonce.into(), "nonce mismatch");
-			fail_unless(t.value == tx.value.into(), "value mismatch");
-			let to: Option<ethjson::hash::Address> = tx.to.into();
-			let to: Option<Address> = to.map(Into::into);
-			match t.action {
-				Action::Call(dest) => fail_unless(Some(dest) == to, "call/destination mismatch"),
-				Action::Create => fail_unless(None == to, "create mismatch"),
+
+			let mut fail_unless = |cond: bool, title: &str| if !cond {
+				failed.push(format!("{}-{:?}", name, spec_name));
+				println!("Transaction failed: {:?}-{:?}: {:?}", name, spec_name, title);
+			};
+
+			let rlp: Vec<u8> = test.rlp.clone().into();
+			let res = Rlp::new(&rlp)
+				.as_val()
+				.map_err(::error::Error::from)
+				.and_then(|t: UnverifiedTransaction| {
+					let mut header: Header = Default::default();
+					// Use high enough number to activate all required features.
+					header.set_number(BLOCK_NUMBER);
+
+					let minimal = t.gas_required(&spec.engine.schedule(header.number())).into();
+					if t.gas < minimal {
+						return Err(::transaction::Error::InsufficientGas {
+							minimal, got: t.gas,
+						}.into());
+					}
+					spec.engine.verify_transaction_basic(&t, &header)?;
+					Ok(spec.engine.verify_transaction_unordered(t, &header)?)
+				});
+
+			match (res, result.hash, result.sender) {
+				(Ok(t), Some(hash), Some(sender)) => {
+					fail_unless(t.sender() == sender.into(), "sender mismatch");
+					fail_unless(t.hash() == hash.into(), "hash mismatch");
+				},
+				(Err(_), None, None) => {},
+				data => {
+					fail_unless(
+						false,
+						&format!("Validity different: {:?}", data)
+					);
+				}
 			}
 		}

@@ -92,13 +99,14 @@ fn do_json_test<H: FnMut(&str, HookType)>(json_data: &[u8], start_stop_hook: &mu
 	failed
 }

-declare_test!{TransactionTests_ttEip155VitaliksHomesead, "TransactionTests/ttEip155VitaliksHomesead"}
-declare_test!{TransactionTests_ttEip155VitaliksEip158, "TransactionTests/ttEip155VitaliksEip158"}
-declare_test!{TransactionTests_ttEip158, "TransactionTests/ttEip158"}
-declare_test!{TransactionTests_ttFrontier, "TransactionTests/ttFrontier"}
-declare_test!{TransactionTests_ttHomestead, "TransactionTests/ttHomestead"}
-declare_test!{TransactionTests_ttVRuleEip158, "TransactionTests/ttVRuleEip158"}
-declare_test!{TransactionTests_ttWrongRLPFrontier, "TransactionTests/ttWrongRLPFrontier"}
-declare_test!{TransactionTests_ttWrongRLPHomestead, "TransactionTests/ttWrongRLPHomestead"}
-declare_test!{TransactionTests_ttConstantinople, "TransactionTests/ttConstantinople"}
-declare_test!{TransactionTests_ttSpecConstantinople, "TransactionTests/ttSpecConstantinople"}
+declare_test!{TransactionTests_ttAddress, "TransactionTests/ttAddress"}
+declare_test!{TransactionTests_ttData, "TransactionTests/ttData"}
+declare_test!{TransactionTests_ttGasLimit, "TransactionTests/ttGasLimit"}
+declare_test!{TransactionTests_ttGasPrice, "TransactionTests/ttGasPrice"}
+declare_test!{TransactionTests_ttNonce, "TransactionTests/ttNonce"}
+declare_test!{TransactionTests_ttRSValue, "TransactionTests/ttRSValue"}
+declare_test!{TransactionTests_ttSignature, "TransactionTests/ttSignature"}
+declare_test!{TransactionTests_ttValue, "TransactionTests/ttValue"}
+declare_test!{TransactionTests_ttVValue, "TransactionTests/ttVValue"}
+declare_test!{TransactionTests_ttWrongRLP, "TransactionTests/ttWrongRLP"}
+
--- a/ethcore/src/machine.rs
+++ b/ethcore/src/machine.rs
@@ -140,7 +140,7 @@ impl EthereumMachine {
 			gas_price: 0.into(),
 			value: ActionValue::Transfer(0.into()),
 			code: state.code(&contract_address)?,
-			code_hash: Some(state.code_hash(&contract_address)?),
+			code_hash: state.code_hash(&contract_address)?,
 			data: data,
 			call_type: CallType::Call,
 			params_type: ParamsType::Separate,
@@ -309,12 +309,8 @@ impl EthereumMachine {
 	}

 	/// Returns new contract address generation scheme at given block number.
-	pub fn create_address_scheme(&self, number: BlockNumber) -> CreateContractAddress {
-		if number >= self.params().eip86_transition {
-			CreateContractAddress::FromCodeHash
-		} else {
-			CreateContractAddress::FromSenderAndNonce
-		}
+	pub fn create_address_scheme(&self, _number: BlockNumber) -> CreateContractAddress {
+		CreateContractAddress::FromSenderAndNonce
 	}

 	/// Verify a particular transaction is valid, regardless of order.
--- a/ethcore/src/spec/spec.rs
+++ b/ethcore/src/spec/spec.rs
@@ -96,8 +96,6 @@ pub struct CommonParams {
 	pub validate_receipts_transition: BlockNumber,
 	/// Validate transaction chain id.
 	pub validate_chain_id_transition: BlockNumber,
-	/// Number of first block where EIP-86 (Metropolis) rules begin.
-	pub eip86_transition: BlockNumber,
 	/// Number of first block where EIP-140 (Metropolis: REVERT opcode) rules begin.
 	pub eip140_transition: BlockNumber,
 	/// Number of first block where EIP-210 (Metropolis: BLOCKHASH changes) rules begin.
@@ -115,6 +113,12 @@ pub struct CommonParams {
 	pub eip214_transition: BlockNumber,
 	/// Number of first block where EIP-145 rules begin.
 	pub eip145_transition: BlockNumber,
+	/// Number of first block where EIP-1052 rules begin.
+	pub eip1052_transition: BlockNumber,
+	/// Number of first block where EIP-1283 rules begin.
+	pub eip1283_transition: BlockNumber,
+	/// Number of first block where EIP-1014 rules begin.
+	pub eip1014_transition: BlockNumber,
 	/// Number of first block where dust cleanup rules (EIP-168 and EIP169) begin.
 	pub dust_protection_transition: BlockNumber,
 	/// Nonce cap increase per block. Nonce cap is only checked if dust protection is enabled.
@@ -123,6 +127,10 @@ pub struct CommonParams {
 	pub remove_dust_contracts: bool,
 	/// Wasm activation blocknumber, if any disabled initially.
 	pub wasm_activation_transition: BlockNumber,
+	/// Number of first block where KIP-4 rules begin. Only has effect if Wasm is activated.
+	pub kip4_transition: BlockNumber,
+	/// Number of first block where KIP-6 rules begin. Only has effect if Wasm is activated.
+	pub kip6_transition: BlockNumber,
 	/// Gas limit bound divisor (how much gas limit can change per block)
 	pub gas_limit_bound_divisor: U256,
 	/// Registrar contract address.
@@ -169,11 +177,13 @@ impl CommonParams {

 	/// Apply common spec config parameters to the schedule.
 	pub fn update_schedule(&self, block_number: u64, schedule: &mut ::vm::Schedule) {
-		schedule.have_create2 = block_number >= self.eip86_transition;
+		schedule.have_create2 = block_number >= self.eip1014_transition;
 		schedule.have_revert = block_number >= self.eip140_transition;
 		schedule.have_static_call = block_number >= self.eip214_transition;
 		schedule.have_return_data = block_number >= self.eip211_transition;
 		schedule.have_bitwise_shifting = block_number >= self.eip145_transition;
+		schedule.have_extcodehash = block_number >= self.eip1052_transition;
+		schedule.eip1283 = block_number >= self.eip1283_transition;
 		if block_number >= self.eip210_transition {
 			schedule.blockhash_gas = 800;
 		}
@@ -184,7 +194,14 @@ impl CommonParams {
 			};
 		}
 		if block_number >= self.wasm_activation_transition {
-			schedule.wasm = Some(Default::default());
+			let mut wasm = ::vm::WasmCosts::default();
+			if block_number >= self.kip4_transition {
+				wasm.have_create2 = true;
+			}
+			if block_number >= self.kip6_transition {
+				wasm.have_gasleft = true;
+			}
+			schedule.wasm = Some(wasm);
 		}
 	}

@@ -232,10 +249,6 @@ impl From<ethjson::spec::Params> for CommonParams {
 			eip155_transition: p.eip155_transition.map_or(0, Into::into),
 			validate_receipts_transition: p.validate_receipts_transition.map_or(0, Into::into),
 			validate_chain_id_transition: p.validate_chain_id_transition.map_or(0, Into::into),
-			eip86_transition: p.eip86_transition.map_or_else(
-				BlockNumber::max_value,
-				Into::into,
-			),
 			eip140_transition: p.eip140_transition.map_or_else(
 				BlockNumber::max_value,
 				Into::into,
@@ -270,6 +283,18 @@ impl From<ethjson::spec::Params> for CommonParams {
 				BlockNumber::max_value,
 				Into::into,
 			),
+			eip1052_transition: p.eip1052_transition.map_or_else(
+				BlockNumber::max_value,
+				Into::into,
+			),
+			eip1283_transition: p.eip1283_transition.map_or_else(
+				BlockNumber::max_value,
+				Into::into,
+			),
+			eip1014_transition: p.eip1014_transition.map_or_else(
+				BlockNumber::max_value,
+				Into::into,
+			),
 			dust_protection_transition: p.dust_protection_transition.map_or_else(
 				BlockNumber::max_value,
 				Into::into,
@@ -287,6 +312,14 @@ impl From<ethjson::spec::Params> for CommonParams {
 				BlockNumber::max_value,
 				Into::into
 			),
+			kip4_transition: p.kip4_transition.map_or_else(
+				BlockNumber::max_value,
+				Into::into
+			),
+			kip6_transition: p.kip6_transition.map_or_else(
+				BlockNumber::max_value,
+				Into::into
+			),
 		}
 	}
 }
@@ -829,14 +862,13 @@ impl Spec {
 				data: d,
 			}.fake_sign(from);

-			let res = ::state::prove_transaction(
+			let res = ::state::prove_transaction_virtual(
 				db.as_hashdb_mut(),
 				*genesis.state_root(),
 				&tx,
 				self.engine.machine(),
 				&env_info,
 				factories.clone(),
-				true,
 			);

 			res.map(|(out, proof)| {
--- a/ethcore/src/state/account.rs
+++ b/ethcore/src/state/account.rs
@@ -59,6 +59,10 @@ pub struct Account {
 	// LRU Cache of the trie-backed storage.
 	// This is limited to `STORAGE_CACHE_ITEMS` recent queries
 	storage_cache: RefCell<LruCache<H256, H256>>,
+	// LRU Cache of the trie-backed storage for original value.
+	// This is only used when the initial storage root is different compared to
+	// what is in the database. That is, it is only used for new contracts.
+	original_storage_cache: Option<(H256, RefCell<LruCache<H256, H256>>)>,
 	// Modified storage. Accumulates changes to storage made in `set_storage`
 	// Takes precedence over `storage_cache`.
 	storage_changes: HashMap<H256, H256>,
@@ -81,6 +85,7 @@ impl From<BasicAccount> for Account {
 			nonce: basic.nonce,
 			storage_root: basic.storage_root,
 			storage_cache: Self::empty_storage_cache(),
+			original_storage_cache: None,
 			storage_changes: HashMap::new(),
 			code_hash: basic.code_hash,
 			code_size: None,
@@ -100,6 +105,7 @@ impl Account {
 			nonce: nonce,
 			storage_root: KECCAK_NULL_RLP,
 			storage_cache: Self::empty_storage_cache(),
+			original_storage_cache: None,
 			storage_changes: storage,
 			code_hash: keccak(&code),
 			code_size: Some(code.len()),
@@ -120,6 +126,7 @@ impl Account {
 			nonce: pod.nonce,
 			storage_root: KECCAK_NULL_RLP,
 			storage_cache: Self::empty_storage_cache(),
+			original_storage_cache: None,
 			storage_changes: pod.storage.into_iter().collect(),
 			code_hash: pod.code.as_ref().map_or(KECCAK_EMPTY, |c| keccak(c)),
 			code_filth: Filth::Dirty,
@@ -136,6 +143,7 @@ impl Account {
 			nonce: nonce,
 			storage_root: KECCAK_NULL_RLP,
 			storage_cache: Self::empty_storage_cache(),
+			original_storage_cache: None,
 			storage_changes: HashMap::new(),
 			code_hash: KECCAK_EMPTY,
 			code_cache: Arc::new(vec![]),
@@ -154,12 +162,17 @@ impl Account {

 	/// Create a new contract account.
 	/// NOTE: make sure you use `init_code` on this before `commit`ing.
-	pub fn new_contract(balance: U256, nonce: U256) -> Account {
+	pub fn new_contract(balance: U256, nonce: U256, original_storage_root: H256) -> Account {
 		Account {
 			balance: balance,
 			nonce: nonce,
 			storage_root: KECCAK_NULL_RLP,
 			storage_cache: Self::empty_storage_cache(),
+			original_storage_cache: if original_storage_root == KECCAK_NULL_RLP {
+				None
+			} else {
+				Some((original_storage_root, Self::empty_storage_cache()))
+			},
 			storage_changes: HashMap::new(),
 			code_hash: KECCAK_EMPTY,
 			code_cache: Arc::new(vec![]),
@@ -204,11 +217,43 @@ impl Account {
 		if let Some(value) = self.cached_storage_at(key) {
 			return Ok(value);
 		}
-		let db = SecTrieDB::new(db, &self.storage_root)?;
+		Self::get_and_cache_storage(
+			&self.storage_root,
+			&mut self.storage_cache.borrow_mut(),
+			db,
+			key)
+	}
+
+	/// Get (and cache) the contents of the trie's storage at `key`.
+	/// Does not take modified storage into account.
+	pub fn original_storage_at(&self, db: &HashDB<KeccakHasher>, key: &H256) -> TrieResult<H256> {
+		if let Some(value) = self.cached_original_storage_at(key) {
+			return Ok(value);
+		}
+		match &self.original_storage_cache {
+			Some((ref original_storage_root, ref original_storage_cache)) =>
+				Self::get_and_cache_storage(
+					original_storage_root,
+					&mut original_storage_cache.borrow_mut(),
+					db,
+					key
+				),
+			None =>
+				Self::get_and_cache_storage(
+					&self.storage_root,
+					&mut self.storage_cache.borrow_mut(),
+					db,
+					key
+				),
+		}
+	}
+
+	fn get_and_cache_storage(storage_root: &H256, storage_cache: &mut LruCache<H256, H256>, db: &HashDB<KeccakHasher>, key: &H256) -> TrieResult<H256> {
+		let db = SecTrieDB::new(db, storage_root)?;
 		let panicky_decoder = |bytes:&[u8]| ::rlp::decode(&bytes).expect("decoding db value failed");
 		let item: U256 = db.get_with(key, panicky_decoder)?.unwrap_or_else(U256::zero);
 		let value: H256 = item.into();
-		self.storage_cache.borrow_mut().insert(key.clone(), value.clone());
+		storage_cache.insert(key.clone(), value.clone());
 		Ok(value)
 	}

@@ -218,10 +263,38 @@ impl Account {
 		if let Some(value) = self.storage_changes.get(key) {
 			return Some(value.clone())
 		}
-		if let Some(value) = self.storage_cache.borrow_mut().get_mut(key) {
-			return Some(value.clone())
+		self.cached_moved_original_storage_at(key)
+	}
+
+	/// Get cached original storage value after last state commitment. Returns `None` if the key is not in the cache.
+	pub fn cached_original_storage_at(&self, key: &H256) -> Option<H256> {
+		match &self.original_storage_cache {
+			Some((_, ref original_storage_cache)) => {
+				if let Some(value) = original_storage_cache.borrow_mut().get_mut(key) {
+					Some(value.clone())
+				} else {
+					None
+				}
+			},
+			None => {
+				self.cached_moved_original_storage_at(key)
+			},
+		}
+	}
+
+	/// Get cached original storage value since last contract creation on this address. Returns `None` if the key is not in the cache.
+	fn cached_moved_original_storage_at(&self, key: &H256) -> Option<H256> {
+		// If storage root is empty RLP, then early return zero value. Practically, this makes it so that if
+		// `original_storage_cache` is used, then `storage_cache` will always remain empty.
+		if self.storage_root == KECCAK_NULL_RLP {
+			return Some(H256::new());
+		}
+
+		if let Some(value) = self.storage_cache.borrow_mut().get_mut(key) {
+			Some(value.clone())
+		} else {
+			None
 		}
-		None
 	}

 	/// return the balance associated with this account.
@@ -278,12 +351,13 @@ impl Account {
 		!self.code_cache.is_empty() || (self.code_cache.is_empty() && self.code_hash == KECCAK_EMPTY)
 	}

-	/// Provide a database to get `code_hash`. Should not be called if it is a contract without code.
+	/// Provide a database to get `code_hash`. Should not be called if it is a contract without code. Returns the cached code, if successful.
+	#[must_use]
 	pub fn cache_code(&mut self, db: &HashDB<KeccakHasher>) -> Option<Arc<Bytes>> {
 		// TODO: fill out self.code_cache;
 		trace!("Account::cache_code: ic={}; self.code_hash={:?}, self.code_cache={}", self.is_cached(), self.code_hash, self.code_cache.pretty());

-		if self.is_cached() { return Some(self.code_cache.clone()) }
+		if self.is_cached() { return Some(self.code_cache.clone()); }

 		match db.get(&self.code_hash) {
 			Some(x) => {
@@ -298,8 +372,7 @@ impl Account {
 		}
 	}

-	/// Provide code to cache. For correctness, should be the correct code for the
-	/// account.
+	/// Provide code to cache. For correctness, should be the correct code for the account.
 	pub fn cache_given_code(&mut self, code: Arc<Bytes>) {
 		trace!("Account::cache_given_code: ic={}; self.code_hash={:?}, self.code_cache={}", self.is_cached(), self.code_hash, self.code_cache.pretty());

@@ -307,7 +380,9 @@ impl Account {
 		self.code_cache = code;
 	}

-	/// Provide a database to get `code_size`. Should not be called if it is a contract without code.
+	/// Provide a database to get `code_size`. Should not be called if it is a contract without code. Returns whether
+	/// the cache succeeds.
+	#[must_use]
 	pub fn cache_code_size(&mut self, db: &HashDB<KeccakHasher>) -> bool {
 		// TODO: fill out self.code_cache;
 		trace!("Account::cache_code_size: ic={}; self.code_hash={:?}, self.code_cache={}", self.is_cached(), self.code_hash, self.code_cache.pretty());
@@ -324,7 +399,9 @@ impl Account {
 					},
 				}
 			} else {
-				false
+				// If the code hash is empty hash, then the code size is zero.
+				self.code_size = Some(0);
+				true
 			}
 	}

@@ -352,7 +429,27 @@ impl Account {
 	}

 	/// Return the storage root associated with this account or None if it has been altered via the overlay.
-	pub fn storage_root(&self) -> Option<&H256> { if self.storage_is_clean() {Some(&self.storage_root)} else {None} }
+	pub fn storage_root(&self) -> Option<H256> {
+		if self.storage_is_clean() {
+			Some(self.storage_root)
+		} else {
+			None
+		}
+	}
+
+	/// Return the original storage root of this account.
+	pub fn original_storage_root(&self) -> H256 {
+		if let Some((original_storage_root, _)) = self.original_storage_cache {
+			original_storage_root
+		} else {
+			self.storage_root
+		}
+	}
+
+	/// Storage root where the account changes are based upon.
+	pub fn base_storage_root(&self) -> H256 {
+		self.storage_root
+	}

 	/// Return the storage overlay.
 	pub fn storage_changes(&self) -> &HashMap<H256, H256> { &self.storage_changes }
@@ -387,6 +484,7 @@ impl Account {

 			self.storage_cache.borrow_mut().insert(k, v);
 		}
+		self.original_storage_cache = None;
 		Ok(())
 	}

@@ -424,6 +522,7 @@ impl Account {
 			nonce: self.nonce.clone(),
 			storage_root: self.storage_root.clone(),
 			storage_cache: Self::empty_storage_cache(),
+			original_storage_cache: self.original_storage_cache.as_ref().map(|(r, _)| (*r, Self::empty_storage_cache())),
 			storage_changes: HashMap::new(),
 			code_hash: self.code_hash.clone(),
 			code_size: self.code_size.clone(),
@@ -444,6 +543,7 @@ impl Account {
 	pub fn clone_all(&self) -> Account {
 		let mut account = self.clone_dirty();
 		account.storage_cache = self.storage_cache.clone();
+		account.original_storage_cache = self.original_storage_cache.clone();
 		account
 	}

@@ -453,16 +553,21 @@ impl Account {
 	pub fn overwrite_with(&mut self, other: Account) {
 		self.balance = other.balance;
 		self.nonce = other.nonce;
-		self.storage_root = other.storage_root;
 		self.code_hash = other.code_hash;
 		self.code_filth = other.code_filth;
 		self.code_cache = other.code_cache;
 		self.code_size = other.code_size;
 		self.address_hash = other.address_hash;
-		let mut cache = self.storage_cache.borrow_mut();
-		for (k, v) in other.storage_cache.into_inner() {
-			cache.insert(k, v);
+		if self.storage_root == other.storage_root {
+			let mut cache = self.storage_cache.borrow_mut();
+			for (k, v) in other.storage_cache.into_inner() {
+				cache.insert(k, v);
+			}
+		} else {
+			self.storage_cache = other.storage_cache;
 		}
+		self.original_storage_cache = other.original_storage_cache;
+		self.storage_root = other.storage_root;
 		self.storage_changes = other.storage_changes;
 	}
 }
@@ -521,7 +626,7 @@ mod tests {
 		let mut db = MemoryDB::new();
 		let mut db = AccountDBMut::new(&mut db, &Address::new());
 		let rlp = {
-			let mut a = Account::new_contract(69.into(), 0.into());
+			let mut a = Account::new_contract(69.into(), 0.into(), KECCAK_NULL_RLP);
 			a.set_storage(0x00u64.into(), 0x1234u64.into());
 			a.commit_storage(&Default::default(), &mut db).unwrap();
 			a.init_code(vec![]);
@@ -530,7 +635,7 @@ mod tests {
 		};

 		let a = Account::from_rlp(&rlp).expect("decoding db value failed");
-		assert_eq!(*a.storage_root().unwrap(), "c57e1afb758b07f8d2c8f13a3b6e44fa5ff94ab266facc5a4fd3f062426e50b2".into());
+		assert_eq!(a.storage_root().unwrap(), "c57e1afb758b07f8d2c8f13a3b6e44fa5ff94ab266facc5a4fd3f062426e50b2".into());
 		assert_eq!(a.storage_at(&db.immutable(), &0x00u64.into()).unwrap(), 0x1234u64.into());
 		assert_eq!(a.storage_at(&db.immutable(), &0x01u64.into()).unwrap(), H256::default());
 	}
@@ -541,7 +646,7 @@ mod tests {
 		let mut db = AccountDBMut::new(&mut db, &Address::new());

 		let rlp = {
-			let mut a = Account::new_contract(69.into(), 0.into());
+			let mut a = Account::new_contract(69.into(), 0.into(), KECCAK_NULL_RLP);
 			a.init_code(vec![0x55, 0x44, 0xffu8]);
 			a.commit_code(&mut db);
 			a.rlp()
@@ -556,18 +661,18 @@ mod tests {

 	#[test]
 	fn commit_storage() {
-		let mut a = Account::new_contract(69.into(), 0.into());
+		let mut a = Account::new_contract(69.into(), 0.into(), KECCAK_NULL_RLP);
 		let mut db = MemoryDB::new();
 		let mut db = AccountDBMut::new(&mut db, &Address::new());
 		a.set_storage(0.into(), 0x1234.into());
 		assert_eq!(a.storage_root(), None);
 		a.commit_storage(&Default::default(), &mut db).unwrap();
-		assert_eq!(*a.storage_root().unwrap(), "c57e1afb758b07f8d2c8f13a3b6e44fa5ff94ab266facc5a4fd3f062426e50b2".into());
+		assert_eq!(a.storage_root().unwrap(), "c57e1afb758b07f8d2c8f13a3b6e44fa5ff94ab266facc5a4fd3f062426e50b2".into());
 	}

 	#[test]
 	fn commit_remove_commit_storage() {
-		let mut a = Account::new_contract(69.into(), 0.into());
+		let mut a = Account::new_contract(69.into(), 0.into(), KECCAK_NULL_RLP);
 		let mut db = MemoryDB::new();
 		let mut db = AccountDBMut::new(&mut db, &Address::new());
 		a.set_storage(0.into(), 0x1234.into());
@@ -576,12 +681,12 @@ mod tests {
 		a.commit_storage(&Default::default(), &mut db).unwrap();
 		a.set_storage(1.into(), 0.into());
 		a.commit_storage(&Default::default(), &mut db).unwrap();
-		assert_eq!(*a.storage_root().unwrap(), "c57e1afb758b07f8d2c8f13a3b6e44fa5ff94ab266facc5a4fd3f062426e50b2".into());
+		assert_eq!(a.storage_root().unwrap(), "c57e1afb758b07f8d2c8f13a3b6e44fa5ff94ab266facc5a4fd3f062426e50b2".into());
 	}

 	#[test]
 	fn commit_code() {
-		let mut a = Account::new_contract(69.into(), 0.into());
+		let mut a = Account::new_contract(69.into(), 0.into(), KECCAK_NULL_RLP);
 		let mut db = MemoryDB::new();
 		let mut db = AccountDBMut::new(&mut db, &Address::new());
 		a.init_code(vec![0x55, 0x44, 0xffu8]);
@@ -593,7 +698,7 @@ mod tests {

 	#[test]
 	fn reset_code() {
-		let mut a = Account::new_contract(69.into(), 0.into());
+		let mut a = Account::new_contract(69.into(), 0.into(), KECCAK_NULL_RLP);
 		let mut db = MemoryDB::new();
 		let mut db = AccountDBMut::new(&mut db, &Address::new());
 		a.init_code(vec![0x55, 0x44, 0xffu8]);
@@ -624,7 +729,7 @@ mod tests {
 		assert_eq!(*a.balance(), 69u8.into());
 		assert_eq!(*a.nonce(), 0u8.into());
 		assert_eq!(a.code_hash(), KECCAK_EMPTY);
-		assert_eq!(a.storage_root().unwrap(), &KECCAK_NULL_RLP);
+		assert_eq!(a.storage_root().unwrap(), KECCAK_NULL_RLP);
 	}

 	#[test]
--- a/ethcore/src/state/mod.rs
+++ b/ethcore/src/state/mod.rs
@@ -181,6 +181,8 @@ impl AccountEntry {
 			Some(acc) => {
 				if let Some(ref mut ours) = self.account {
 					ours.overwrite_with(acc);
+				} else {
+					self.account = Some(acc);
 				}
 			},
 			None => self.account = None,
@@ -222,17 +224,16 @@ pub fn check_proof(
 	}
 }

-/// Prove a transaction on the given state.
+/// Prove a `virtual` transaction on the given state.
 /// Returns `None` when the transacion could not be proved,
 /// and a proof otherwise.
-pub fn prove_transaction<H: AsHashDB<KeccakHasher> + Send + Sync>(
+pub fn prove_transaction_virtual<H: AsHashDB<KeccakHasher> + Send + Sync>(
 	db: H,
 	root: H256,
 	transaction: &SignedTransaction,
 	machine: &Machine,
 	env_info: &EnvInfo,
 	factories: Factories,
-	virt: bool,
 ) -> Option<(Bytes, Vec<DBValue>)> {
 	use self::backend::Proving;

@@ -250,7 +251,7 @@ pub fn prove_transaction<H: AsHashDB<KeccakHasher> + Send + Sync>(
 	};

 	let options = TransactOptions::with_no_tracing().dont_check_nonce().save_output_from_contract();
-	match state.execute(env_info, machine, transaction, options, virt) {
+	match state.execute(env_info, machine, transaction, options, true) {
 		Err(ExecutionError::Internal(_)) => None,
 		Err(e) => {
 			trace!(target: "state", "Proved call failed: {}", e);
@@ -401,9 +402,12 @@ impl<B: Backend> State<B> {
 		self.factories.vm.clone()
 	}

-	/// Create a recoverable checkpoint of this state.
-	pub fn checkpoint(&mut self) {
-		self.checkpoints.get_mut().push(HashMap::new());
+	/// Create a recoverable checkpoint of this state. Return the checkpoint index.
+	pub fn checkpoint(&mut self) -> usize {
+		let checkpoints = self.checkpoints.get_mut();
+		let index = checkpoints.len();
+		checkpoints.push(HashMap::new());
+		index
 	}

 	/// Merge last checkpoint with previous.
@@ -494,8 +498,10 @@ impl<B: Backend> State<B> {

 	/// Create a new contract at address `contract`. If there is already an account at the address
 	/// it will have its code reset, ready for `init_code()`.
-	pub fn new_contract(&mut self, contract: &Address, balance: U256, nonce_offset: U256) {
-		self.insert_cache(contract, AccountEntry::new_dirty(Some(Account::new_contract(balance, self.account_start_nonce + nonce_offset))));
+	pub fn new_contract(&mut self, contract: &Address, balance: U256, nonce_offset: U256) -> TrieResult<()> {
+		let original_storage_root = self.original_storage_root(contract)?;
+		self.insert_cache(contract, AccountEntry::new_dirty(Some(Account::new_contract(balance, self.account_start_nonce + nonce_offset, original_storage_root))));
+		Ok(())
 	}

 	/// Remove an existing account.
@@ -536,11 +542,84 @@ impl<B: Backend> State<B> {
 	/// Get the storage root of account `a`.
 	pub fn storage_root(&self, a: &Address) -> TrieResult<Option<H256>> {
 		self.ensure_cached(a, RequireCache::None, true,
-			|a| a.as_ref().and_then(|account| account.storage_root().cloned()))
+			|a| a.as_ref().and_then(|account| account.storage_root()))
 	}

-	/// Mutate storage of account `address` so that it is `value` for `key`.
-	pub fn storage_at(&self, address: &Address, key: &H256) -> TrieResult<H256> {
+	/// Get the original storage root since last commit of account `a`.
+	pub fn original_storage_root(&self, a: &Address) -> TrieResult<H256> {
+		Ok(self.ensure_cached(a, RequireCache::None, true,
+			|a| a.as_ref().map(|account| account.original_storage_root()))?
+			.unwrap_or(KECCAK_NULL_RLP))
+	}
+
+	/// Get the value of storage at a specific checkpoint.
+	pub fn checkpoint_storage_at(&self, checkpoint_index: usize, address: &Address, key: &H256) -> TrieResult<Option<H256>> {
+		enum ReturnKind {
+			/// Use original storage at value at this address.
+			OriginalAt,
+			/// Use the downward checkpoint value.
+			Downward,
+		}
+
+		let (checkpoints_len, kind) = {
+			let checkpoints = self.checkpoints.borrow();
+			let checkpoints_len = checkpoints.len();
+			let checkpoint = match checkpoints.get(checkpoint_index) {
+				Some(checkpoint) => checkpoint,
+				// The checkpoint was not found. Return None.
+				None => return Ok(None),
+			};
+
+			let kind = match checkpoint.get(address) {
+				// The account exists at this checkpoint.
+				Some(Some(AccountEntry { account: Some(ref account), .. })) => {
+					if let Some(value) = account.cached_storage_at(key) {
+						return Ok(Some(value));
+					} else {
+						// This account has checkpoint entry, but the key is not in the entry's cache. We can use
+						// original_storage_at if current account's original storage root is the same as checkpoint
+						// account's original storage root. Otherwise, the account must be a newly created contract.
+						if account.base_storage_root() == self.original_storage_root(address)? {
+							ReturnKind::OriginalAt
+						} else {
+							// If account base storage root is different from the original storage root since last
+							// commit, then it can only be created from a new contract, where the base storage root
+							// would always be empty. Note that this branch is actually never called, because
+							// `cached_storage_at` handled this case.
+							warn!("Trying to get an account's cached storage value, but base storage root does not equal to original storage root! Assuming the value is empty.");
+							return Ok(Some(H256::new()));
+						}
+					}
+				},
+				// The account didn't exist at that point. Return empty value.
+				Some(Some(AccountEntry { account: None, .. })) => return Ok(Some(H256::new())),
+				// The value was not cached at that checkpoint, meaning it was not modified at all.
+				Some(None) => ReturnKind::OriginalAt,
+				// This key does not have a checkpoint entry.
+				None => ReturnKind::Downward,
+			};
+
+			(checkpoints_len, kind)
+		};
+
+		match kind {
+			ReturnKind::Downward => {
+				if checkpoint_index >= checkpoints_len - 1 {
+					Ok(Some(self.storage_at(address, key)?))
+				} else {
+					self.checkpoint_storage_at(checkpoint_index + 1, address, key)
+				}
+			},
+			ReturnKind::OriginalAt => Ok(Some(self.original_storage_at(address, key)?)),
+		}
+	}
+
+	fn storage_at_inner<FCachedStorageAt, FStorageAt>(
+		&self, address: &Address, key: &H256, f_cached_at: FCachedStorageAt, f_at: FStorageAt,
+	) -> TrieResult<H256> where
+		FCachedStorageAt: Fn(&Account, &H256) -> Option<H256>,
+		FStorageAt: Fn(&Account, &HashDB<KeccakHasher>, &H256) -> TrieResult<H256>
+	{
 		// Storage key search and update works like this:
 		// 1. If there's an entry for the account in the local cache check for the key and return it if found.
 		// 2. If there's an entry for the account in the global cache check for the key or load it into that account.
@@ -553,7 +632,7 @@ impl<B: Backend> State<B> {
 			if let Some(maybe_acc) = local_cache.get(address) {
 				match maybe_acc.account {
 					Some(ref account) => {
-						if let Some(value) = account.cached_storage_at(key) {
+						if let Some(value) = f_cached_at(account, key) {
 							return Ok(value);
 						} else {
 							local_account = Some(maybe_acc);
@@ -567,7 +646,7 @@ impl<B: Backend> State<B> {
 				None => Ok(H256::new()),
 				Some(a) => {
 					let account_db = self.factories.accountdb.readonly(self.db.as_hashdb(), a.address_hash(address));
-					a.storage_at(account_db.as_hashdb(), key)
+					f_at(a, account_db.as_hashdb(), key)
 				}
 			});

@@ -579,7 +658,7 @@ impl<B: Backend> State<B> {
 			if let Some(ref mut acc) = local_account {
 				if let Some(ref account) = acc.account {
 					let account_db = self.factories.accountdb.readonly(self.db.as_hashdb(), account.address_hash(address));
-					return account.storage_at(account_db.as_hashdb(), key)
+					return f_at(account, account_db.as_hashdb(), key)
 				} else {
 					return Ok(H256::new())
 				}
@@ -595,12 +674,32 @@ impl<B: Backend> State<B> {
 		let maybe_acc = db.get_with(address, from_rlp)?;
 		let r = maybe_acc.as_ref().map_or(Ok(H256::new()), |a| {
 			let account_db = self.factories.accountdb.readonly(self.db.as_hashdb(), a.address_hash(address));
-			a.storage_at(account_db.as_hashdb(), key)
+			f_at(a, account_db.as_hashdb(), key)
 		});
 		self.insert_cache(address, AccountEntry::new_clean(maybe_acc));
 		r
 	}

+	/// Mutate storage of account `address` so that it is `value` for `key`.
+	pub fn storage_at(&self, address: &Address, key: &H256) -> TrieResult<H256> {
+		self.storage_at_inner(
+			address,
+			key,
+			|account, key| { account.cached_storage_at(key) },
+			|account, db, key| { account.storage_at(db, key) },
+		)
+	}
+
+	/// Get the value of storage after last state commitment.
+	pub fn original_storage_at(&self, address: &Address, key: &H256) -> TrieResult<H256> {
+		self.storage_at_inner(
+			address,
+			key,
+			|account, key| { account.cached_original_storage_at(key) },
+			|account, db, key| { account.original_storage_at(db, key) },
+		)
+	}
+
 	/// Get accounts' code.
 	pub fn code(&self, a: &Address) -> TrieResult<Option<Arc<Bytes>>> {
 		self.ensure_cached(a, RequireCache::Code, true,
@@ -608,9 +707,9 @@ impl<B: Backend> State<B> {
 	}

 	/// Get an account's code hash.
-	pub fn code_hash(&self, a: &Address) -> TrieResult<H256> {
+	pub fn code_hash(&self, a: &Address) -> TrieResult<Option<H256>> {
 		self.ensure_cached(a, RequireCache::None, true,
-			|a| a.as_ref().map_or(KECCAK_EMPTY, |a| a.code_hash()))
+			|a| a.as_ref().map(|a| a.code_hash()))
 	}

 	/// Get accounts' code size.
@@ -671,13 +770,13 @@ impl<B: Backend> State<B> {
 	/// Initialise the code of account `a` so that it is `code`.
 	/// NOTE: Account should have been created with `new_contract`.
 	pub fn init_code(&mut self, a: &Address, code: Bytes) -> TrieResult<()> {
-		self.require_or_from(a, true, || Account::new_contract(0.into(), self.account_start_nonce), |_|{})?.init_code(code);
+		self.require_or_from(a, true, || Account::new_contract(0.into(), self.account_start_nonce, KECCAK_NULL_RLP), |_| {})?.init_code(code);
 		Ok(())
 	}

 	/// Reset the code of account `a` so that it is `code`.
 	pub fn reset_code(&mut self, a: &Address, code: Bytes) -> TrieResult<()> {
-		self.require_or_from(a, true, || Account::new_contract(0.into(), self.account_start_nonce), |_|{})?.reset_code(code);
+		self.require_or_from(a, true, || Account::new_contract(0.into(), self.account_start_nonce, KECCAK_NULL_RLP), |_| {})?.reset_code(code);
 		Ok(())
 	}

@@ -760,6 +859,7 @@ impl<B: Backend> State<B> {

 	/// Commits our cached account changes into the trie.
 	pub fn commit(&mut self) -> Result<(), Error> {
+		assert!(self.checkpoints.borrow().is_empty());
 		// first, commit the sub trees.
 		let mut accounts = self.cache.borrow_mut();
 		for (address, ref mut a) in accounts.iter_mut().filter(|&(_, ref a)| a.is_dirty()) {
@@ -805,6 +905,7 @@ impl<B: Backend> State<B> {

 	/// Clear state cache
 	pub fn clear(&mut self) {
+		assert!(self.checkpoints.borrow().is_empty());
 		self.cache.borrow_mut().clear();
 	}

@@ -910,31 +1011,38 @@ impl<B: Backend> State<B> {
 		Ok(pod_state::diff_pod(&pod_state_pre, &pod_state_post))
 	}

-	// load required account data from the databases.
-	fn update_account_cache(require: RequireCache, account: &mut Account, state_db: &B, db: &HashDB<KeccakHasher>) {
+	/// Load required account data from the databases. Returns whether the cache succeeds.
+	#[must_use]
+	fn update_account_cache(require: RequireCache, account: &mut Account, state_db: &B, db: &HashDB<KeccakHasher>) -> bool {
 		if let RequireCache::None = require {
-			return;
+			return true;
 		}

 		if account.is_cached() {
-			return;
+			return true;
 		}

 		// if there's already code in the global cache, always cache it localy
 		let hash = account.code_hash();
 		match state_db.get_cached_code(&hash) {
-			Some(code) => account.cache_given_code(code),
+			Some(code) => {
+				account.cache_given_code(code);
+				true
+			},
 			None => match require {
-				RequireCache::None => {},
+				RequireCache::None => true,
 				RequireCache::Code => {
 					if let Some(code) = account.cache_code(db) {
 						// propagate code loaded from the database to
 						// the global code cache.
-						state_db.cache_code(hash, code)
+						state_db.cache_code(hash, code);
+						true
+					} else {
+						false
 					}
 				},
 				RequireCache::CodeSize => {
-					account.cache_code_size(db);
+					account.cache_code_size(db)
 				}
 			}
 		}
@@ -949,8 +1057,11 @@ impl<B: Backend> State<B> {
 		if let Some(ref mut maybe_acc) = self.cache.borrow_mut().get_mut(a) {
 			if let Some(ref mut account) = maybe_acc.account {
 				let accountdb = self.factories.accountdb.readonly(self.db.as_hashdb(), account.address_hash(a));
-				Self::update_account_cache(require, account, &self.db, accountdb.as_hashdb());
-				return Ok(f(Some(account)));
+				if Self::update_account_cache(require, account, &self.db, accountdb.as_hashdb()) {
+					return Ok(f(Some(account)));
+				} else {
+					return Err(Box::new(TrieError::IncompleteDatabase(H256::from(a))));
+				}
 			}
 			return Ok(f(None));
 		}
@@ -958,12 +1069,14 @@ impl<B: Backend> State<B> {
 		let result = self.db.get_cached(a, |mut acc| {
 			if let Some(ref mut account) = acc {
 				let accountdb = self.factories.accountdb.readonly(self.db.as_hashdb(), account.address_hash(a));
-				Self::update_account_cache(require, account, &self.db, accountdb.as_hashdb());
+				if !Self::update_account_cache(require, account, &self.db, accountdb.as_hashdb()) {
+					return Err(Box::new(TrieError::IncompleteDatabase(H256::from(a))));
+				}
 			}
-			f(acc.map(|a| &*a))
+			Ok(f(acc.map(|a| &*a)))
 		});
 		match result {
-			Some(r) => Ok(r),
+			Some(r) => Ok(r?),
 			None => {
 				// first check if it is not in database for sure
 				if check_null && self.db.is_known_null(a) { return Ok(f(None)); }
@@ -974,7 +1087,9 @@ impl<B: Backend> State<B> {
 				let mut maybe_acc = db.get_with(a, from_rlp)?;
 				if let Some(ref mut account) = maybe_acc.as_mut() {
 					let accountdb = self.factories.accountdb.readonly(self.db.as_hashdb(), account.address_hash(a));
-					Self::update_account_cache(require, account, &self.db, accountdb.as_hashdb());
+					if !Self::update_account_cache(require, account, &self.db, accountdb.as_hashdb()) {
+						return Err(Box::new(TrieError::IncompleteDatabase(H256::from(a))));
+					}
 				}
 				let r = f(maybe_acc.as_ref());
 				self.insert_cache(a, AccountEntry::new_clean(maybe_acc));
@@ -985,7 +1100,7 @@ impl<B: Backend> State<B> {

 	/// Pull account `a` in our cache from the trie DB. `require_code` requires that the code be cached, too.
 	fn require<'a>(&'a self, a: &Address, require_code: bool) -> TrieResult<RefMut<'a, Account>> {
-		self.require_or_from(a, require_code, || Account::new_basic(0u8.into(), self.account_start_nonce), |_|{})
+		self.require_or_from(a, require_code, || Account::new_basic(0u8.into(), self.account_start_nonce), |_| {})
 	}

 	/// Pull account `a` in our cache from the trie DB. `require_code` requires that the code be cached, too.
@@ -1125,7 +1240,7 @@ mod tests {
 	use std::sync::Arc;
 	use std::str::FromStr;
 	use rustc_hex::FromHex;
-	use hash::keccak;
+	use hash::{keccak, KECCAK_NULL_RLP};
 	use super::*;
 	use ethkey::Secret;
 	use ethereum_types::{H256, U256, Address};
@@ -1977,7 +2092,7 @@ mod tests {
 		let a = Address::zero();
 		let (root, db) = {
 			let mut state = get_temp_state();
-			state.require_or_from(&a, false, ||Account::new_contract(42.into(), 0.into()), |_|{}).unwrap();
+			state.require_or_from(&a, false, || Account::new_contract(42.into(), 0.into(), KECCAK_NULL_RLP), |_|{}).unwrap();
 			state.init_code(&a, vec![1, 2, 3]).unwrap();
 			assert_eq!(state.code(&a).unwrap(), Some(Arc::new(vec![1u8, 2, 3])));
 			state.commit().unwrap();
@@ -2181,6 +2296,180 @@ mod tests {
 		assert_eq!(state.balance(&a).unwrap(), U256::from(0));
 	}

+	#[test]
+	fn checkpoint_revert_to_get_storage_at() {
+		let mut state = get_temp_state();
+		let a = Address::zero();
+		let k = H256::from(U256::from(0));
+
+		let c0 = state.checkpoint();
+		let c1 = state.checkpoint();
+		state.set_storage(&a, k, H256::from(U256::from(1))).unwrap();
+
+		assert_eq!(state.checkpoint_storage_at(c0, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.checkpoint_storage_at(c1, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.storage_at(&a, &k).unwrap(), H256::from(U256::from(1)));
+
+		state.revert_to_checkpoint(); // Revert to c1.
+		assert_eq!(state.checkpoint_storage_at(c0, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.storage_at(&a, &k).unwrap(), H256::from(U256::from(0)));
+	}
+
+	#[test]
+	fn checkpoint_from_empty_get_storage_at() {
+		let mut state = get_temp_state();
+		let a = Address::zero();
+		let k = H256::from(U256::from(0));
+		let k2 = H256::from(U256::from(1));
+
+		assert_eq!(state.storage_at(&a, &k).unwrap(), H256::from(U256::from(0)));
+		state.clear();
+
+		let c0 = state.checkpoint();
+		state.new_contract(&a, U256::zero(), U256::zero()).unwrap();
+		let c1 = state.checkpoint();
+		state.set_storage(&a, k, H256::from(U256::from(1))).unwrap();
+		let c2 = state.checkpoint();
+		let c3 = state.checkpoint();
+		state.set_storage(&a, k2, H256::from(U256::from(3))).unwrap();
+		state.set_storage(&a, k, H256::from(U256::from(3))).unwrap();
+		let c4 = state.checkpoint();
+		state.set_storage(&a, k, H256::from(U256::from(4))).unwrap();
+		let c5 = state.checkpoint();
+
+		assert_eq!(state.checkpoint_storage_at(c0, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.checkpoint_storage_at(c1, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.checkpoint_storage_at(c2, &a, &k).unwrap(), Some(H256::from(U256::from(1))));
+		assert_eq!(state.checkpoint_storage_at(c3, &a, &k).unwrap(), Some(H256::from(U256::from(1))));
+		assert_eq!(state.checkpoint_storage_at(c4, &a, &k).unwrap(), Some(H256::from(U256::from(3))));
+		assert_eq!(state.checkpoint_storage_at(c5, &a, &k).unwrap(), Some(H256::from(U256::from(4))));
+
+		state.discard_checkpoint(); // Commit/discard c5.
+		assert_eq!(state.checkpoint_storage_at(c0, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.checkpoint_storage_at(c1, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.checkpoint_storage_at(c2, &a, &k).unwrap(), Some(H256::from(U256::from(1))));
+		assert_eq!(state.checkpoint_storage_at(c3, &a, &k).unwrap(), Some(H256::from(U256::from(1))));
+		assert_eq!(state.checkpoint_storage_at(c4, &a, &k).unwrap(), Some(H256::from(U256::from(3))));
+
+		state.revert_to_checkpoint(); // Revert to c4.
+		assert_eq!(state.checkpoint_storage_at(c0, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.checkpoint_storage_at(c1, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.checkpoint_storage_at(c2, &a, &k).unwrap(), Some(H256::from(U256::from(1))));
+		assert_eq!(state.checkpoint_storage_at(c3, &a, &k).unwrap(), Some(H256::from(U256::from(1))));
+
+		state.discard_checkpoint(); // Commit/discard c3.
+		assert_eq!(state.checkpoint_storage_at(c0, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.checkpoint_storage_at(c1, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.checkpoint_storage_at(c2, &a, &k).unwrap(), Some(H256::from(U256::from(1))));
+
+		state.revert_to_checkpoint(); // Revert to c2.
+		assert_eq!(state.checkpoint_storage_at(c0, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.checkpoint_storage_at(c1, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+
+		state.discard_checkpoint(); // Commit/discard c1.
+		assert_eq!(state.checkpoint_storage_at(c0, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+	}
+
+	#[test]
+	fn checkpoint_get_storage_at() {
+		let mut state = get_temp_state();
+		let a = Address::zero();
+		let k = H256::from(U256::from(0));
+		let k2 = H256::from(U256::from(1));
+
+		state.set_storage(&a, k, H256::from(U256::from(0xffff))).unwrap();
+		state.commit().unwrap();
+		state.clear();
+
+		assert_eq!(state.storage_at(&a, &k).unwrap(), H256::from(U256::from(0xffff)));
+		state.clear();
+
+		let cm1 = state.checkpoint();
+		let c0 = state.checkpoint();
+		state.new_contract(&a, U256::zero(), U256::zero()).unwrap();
+		let c1 = state.checkpoint();
+		state.set_storage(&a, k, H256::from(U256::from(1))).unwrap();
+		let c2 = state.checkpoint();
+		let c3 = state.checkpoint();
+		state.set_storage(&a, k2, H256::from(U256::from(3))).unwrap();
+		state.set_storage(&a, k, H256::from(U256::from(3))).unwrap();
+		let c4 = state.checkpoint();
+		state.set_storage(&a, k, H256::from(U256::from(4))).unwrap();
+		let c5 = state.checkpoint();
+
+		assert_eq!(state.checkpoint_storage_at(cm1, &a, &k).unwrap(), Some(H256::from(U256::from(0xffff))));
+		assert_eq!(state.checkpoint_storage_at(c0, &a, &k).unwrap(), Some(H256::from(U256::from(0xffff))));
+		assert_eq!(state.checkpoint_storage_at(c1, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.checkpoint_storage_at(c2, &a, &k).unwrap(), Some(H256::from(U256::from(1))));
+		assert_eq!(state.checkpoint_storage_at(c3, &a, &k).unwrap(), Some(H256::from(U256::from(1))));
+		assert_eq!(state.checkpoint_storage_at(c4, &a, &k).unwrap(), Some(H256::from(U256::from(3))));
+		assert_eq!(state.checkpoint_storage_at(c5, &a, &k).unwrap(), Some(H256::from(U256::from(4))));
+
+		state.discard_checkpoint(); // Commit/discard c5.
+		assert_eq!(state.checkpoint_storage_at(cm1, &a, &k).unwrap(), Some(H256::from(U256::from(0xffff))));
+		assert_eq!(state.checkpoint_storage_at(c0, &a, &k).unwrap(), Some(H256::from(U256::from(0xffff))));
+		assert_eq!(state.checkpoint_storage_at(c1, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.checkpoint_storage_at(c2, &a, &k).unwrap(), Some(H256::from(U256::from(1))));
+		assert_eq!(state.checkpoint_storage_at(c3, &a, &k).unwrap(), Some(H256::from(U256::from(1))));
+		assert_eq!(state.checkpoint_storage_at(c4, &a, &k).unwrap(), Some(H256::from(U256::from(3))));
+
+		state.revert_to_checkpoint(); // Revert to c4.
+		assert_eq!(state.checkpoint_storage_at(cm1, &a, &k).unwrap(), Some(H256::from(U256::from(0xffff))));
+		assert_eq!(state.checkpoint_storage_at(c0, &a, &k).unwrap(), Some(H256::from(U256::from(0xffff))));
+		assert_eq!(state.checkpoint_storage_at(c1, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.checkpoint_storage_at(c2, &a, &k).unwrap(), Some(H256::from(U256::from(1))));
+		assert_eq!(state.checkpoint_storage_at(c3, &a, &k).unwrap(), Some(H256::from(U256::from(1))));
+
+		state.discard_checkpoint(); // Commit/discard c3.
+		assert_eq!(state.checkpoint_storage_at(cm1, &a, &k).unwrap(), Some(H256::from(U256::from(0xffff))));
+		assert_eq!(state.checkpoint_storage_at(c0, &a, &k).unwrap(), Some(H256::from(U256::from(0xffff))));
+		assert_eq!(state.checkpoint_storage_at(c1, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+		assert_eq!(state.checkpoint_storage_at(c2, &a, &k).unwrap(), Some(H256::from(U256::from(1))));
+
+		state.revert_to_checkpoint(); // Revert to c2.
+		assert_eq!(state.checkpoint_storage_at(cm1, &a, &k).unwrap(), Some(H256::from(U256::from(0xffff))));
+		assert_eq!(state.checkpoint_storage_at(c0, &a, &k).unwrap(), Some(H256::from(U256::from(0xffff))));
+		assert_eq!(state.checkpoint_storage_at(c1, &a, &k).unwrap(), Some(H256::from(U256::from(0))));
+
+		state.discard_checkpoint(); // Commit/discard c1.
+		assert_eq!(state.checkpoint_storage_at(cm1, &a, &k).unwrap(), Some(H256::from(U256::from(0xffff))));
+		assert_eq!(state.checkpoint_storage_at(c0, &a, &k).unwrap(), Some(H256::from(U256::from(0xffff))));
+	}
+
+	#[test]
+	fn kill_account_with_checkpoints() {
+		let mut state = get_temp_state();
+		let a = Address::zero();
+		let k = H256::from(U256::from(0));
+		state.checkpoint();
+		state.set_storage(&a, k, H256::from(U256::from(1))).unwrap();
+		state.checkpoint();
+		state.kill_account(&a);
+
+		assert_eq!(state.storage_at(&a, &k).unwrap(), H256::from(U256::from(0)));
+		state.revert_to_checkpoint();
+		assert_eq!(state.storage_at(&a, &k).unwrap(), H256::from(U256::from(1)));
+	}
+
+	#[test]
+	fn create_contract_fail() {
+		let mut state = get_temp_state();
+		let orig_root = state.root().clone();
+		let a: Address = 1000.into();
+
+		state.checkpoint(); // c1
+		state.new_contract(&a, U256::zero(), U256::zero()).unwrap();
+		state.add_balance(&a, &U256::from(1), CleanupMode::ForceCreate).unwrap();
+		state.checkpoint(); // c2
+		state.add_balance(&a, &U256::from(1), CleanupMode::ForceCreate).unwrap();
+		state.discard_checkpoint(); // discard c2
+		state.revert_to_checkpoint(); // revert to c1
+		assert_eq!(state.exists(&a).unwrap(), false);
+
+		state.commit().unwrap();
+		assert_eq!(orig_root, state.root().clone());
+	}
+
 	#[test]
 	fn create_empty() {
 		let mut state = get_temp_state();
@@ -2218,7 +2507,7 @@ mod tests {
 			state.add_balance(&b, &100.into(), CleanupMode::ForceCreate).unwrap(); // create a dust account
 			state.add_balance(&c, &101.into(), CleanupMode::ForceCreate).unwrap(); // create a normal account
 			state.add_balance(&d, &99.into(), CleanupMode::ForceCreate).unwrap(); // create another dust account
-			state.new_contract(&e, 100.into(), 1.into()); // create a contract account
+			state.new_contract(&e, 100.into(), 1.into()).unwrap(); // create a contract account
 			state.init_code(&e, vec![0x00]).unwrap();
 			state.commit().unwrap();
 			state.drop()
--- a/ethcore/src/state/substate.rs
+++ b/ethcore/src/state/substate.rs
@@ -34,8 +34,8 @@ pub struct Substate {
 	/// Any logs.
 	pub logs: Vec<LogEntry>,

-	/// Refund counter of SSTORE nonzero -> zero.
-	pub sstore_clears_count: U256,
+	/// Refund counter of SSTORE.
+	pub sstore_clears_refund: U256,

 	/// Created contracts.
 	pub contracts_created: Vec<Address>,
@@ -52,7 +52,7 @@ impl Substate {
 		self.suicides.extend(s.suicides);
 		self.touched.extend(s.touched);
 		self.logs.extend(s.logs);
-		self.sstore_clears_count = self.sstore_clears_count + s.sstore_clears_count;
+		self.sstore_clears_refund = self.sstore_clears_refund + s.sstore_clears_refund;
 		self.contracts_created.extend(s.contracts_created);
 	}

@@ -86,7 +86,7 @@ mod tests {
 			topics: vec![],
 			data: vec![]
 		});
-		sub_state.sstore_clears_count = 5.into();
+		sub_state.sstore_clears_refund = (15000 * 5).into();
 		sub_state.suicides.insert(10u64.into());

 		let mut sub_state_2 = Substate::new();
@@ -96,11 +96,11 @@ mod tests {
 			topics: vec![],
 			data: vec![]
 		});
-		sub_state_2.sstore_clears_count = 7.into();
+		sub_state_2.sstore_clears_refund = (15000 * 7).into();

 		sub_state.accrue(sub_state_2);
 		assert_eq!(sub_state.contracts_created.len(), 2);
-		assert_eq!(sub_state.sstore_clears_count, 12.into());
+		assert_eq!(sub_state.sstore_clears_refund, (15000 * 12).into());
 		assert_eq!(sub_state.suicides.len(), 1);
 	}
 }
--- a/ethcore/src/tests/evm.rs
+++ b/ethcore/src/tests/evm.rs
@@ -39,7 +39,7 @@ fn test_blockhash_eip210(factory: Factory) {
 	let test_blockhash_contract = "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";
 	let blockhash_contract_code = Arc::new(test_blockhash_contract.from_hex().unwrap());
 	let blockhash_contract_code_hash = keccak(blockhash_contract_code.as_ref());
-	let machine = ::ethereum::new_constantinople_test_machine();
+	let machine = ::ethereum::new_eip210_test_machine();
 	let mut env_info = EnvInfo::default();

 	// populate state with 256 last hashes
--- a/ethcore/sync/src/chain/mod.rs
+++ b/ethcore/sync/src/chain/mod.rs
@@ -500,8 +500,9 @@ impl ChainSync {
 		self.peers.clear();
 	}

-	/// Reset sync. Clear all downloaded data but keep the queue
-	fn reset(&mut self, io: &mut SyncIo) {
+	/// Reset sync. Clear all downloaded data but keep the queue.
+	/// Set sync state to the given state or to the initial state if `None` is provided.
+	fn reset(&mut self, io: &mut SyncIo, state: Option<SyncState>) {
 		self.new_blocks.reset();
 		let chain_info = io.chain().chain_info();
 		for (_, ref mut p) in &mut self.peers {
@@ -513,7 +514,7 @@ impl ChainSync {
 				}
 			}
 		}
-		self.state = ChainSync::get_init_state(self.warp_sync, io.chain());
+		self.state = state.unwrap_or_else(|| ChainSync::get_init_state(self.warp_sync, io.chain()));
 		// Reactivate peers only if some progress has been made
 		// since the last sync round of if starting fresh.
 		self.active_peers = self.peers.keys().cloned().collect();
@@ -527,7 +528,7 @@ impl ChainSync {
 			io.snapshot_service().abort_restore();
 		}
 		self.snapshot.clear();
-		self.reset(io);
+		self.reset(io, None);
 		self.continue_sync(io);
 	}

@@ -692,7 +693,7 @@ impl ChainSync {
 	/// Called after all blocks have been downloaded
 	fn complete_sync(&mut self, io: &mut SyncIo) {
 		trace!(target: "sync", "Sync complete");
-		self.reset(io);
+		self.reset(io, Some(SyncState::Idle));
 	}

 	/// Enter waiting state
--- a/ethcore/sync/src/chain/propagator.rs
+++ b/ethcore/sync/src/chain/propagator.rs
@@ -202,7 +202,7 @@ impl SyncPropagator {
 								let appended = packet.append_raw_checked(&transaction.drain(), 1, MAX_TRANSACTION_PACKET_SIZE);
 								if !appended {
 									// Maximal packet size reached just proceed with sending
-									debug!("Transaction packet size limit reached. Sending incomplete set of {}/{} transactions.", pushed, to_send.len());
+									debug!(target: "sync", "Transaction packet size limit reached. Sending incomplete set of {}/{} transactions.", pushed, to_send.len());
 									to_send = to_send.into_iter().take(pushed).collect();
 									break;
 								}
--- a/ethcore/transaction/src/transaction.rs
+++ b/ethcore/transaction/src/transaction.rs
@@ -387,23 +387,6 @@ impl UnverifiedTransaction {
 		Ok(recover(&self.signature(), &self.unsigned.hash(self.chain_id()))?)
 	}

-	/// Do basic validation, checking for valid signature and minimum gas,
-	// TODO: consider use in block validation.
-	#[cfg(feature = "json-tests")]
-	pub fn validate(self, schedule: &Schedule, require_low: bool, allow_chain_id_of_one: bool, allow_empty_signature: bool)
-		-> Result<UnverifiedTransaction, error::Error>
-	{
-		let chain_id = if allow_chain_id_of_one { Some(1) } else { None };
-		self.verify_basic(require_low, chain_id, allow_empty_signature)?;
-		if !allow_empty_signature || !self.is_unsigned() {
-			self.recover_public()?;
-		}
-		if self.gas < U256::from(self.gas_required(&schedule)) {
-			return Err(error::Error::InvalidGasLimit(::unexpected::OutOfBounds{min: Some(U256::from(self.gas_required(&schedule))), max: None, found: self.gas}).into())
-		}
-		Ok(self)
-	}
-
 	/// Verify basic signature params. Does not attempt sender recovery.
 	pub fn verify_basic(&self, check_low_s: bool, chain_id: Option<u64>, allow_empty_signature: bool) -> Result<(), error::Error> {
 		if check_low_s && !(allow_empty_signature && self.is_unsigned()) {
--- a/ethcore/vm/src/ext.rs
+++ b/ethcore/vm/src/ext.rs
@@ -51,18 +51,21 @@ pub enum MessageCallResult {
 }

 /// Specifies how an address is calculated for a new contract.
-#[derive(Copy, Clone, PartialEq, Eq)]
+#[derive(Copy, Clone, PartialEq, Eq, Debug, Hash)]
 pub enum CreateContractAddress {
-	/// Address is calculated from nonce and sender. Pre EIP-86 (Metropolis)
+	/// Address is calculated from sender and nonce. pWASM `create` scheme.
 	FromSenderAndNonce,
-	/// Address is calculated from code hash. Default since EIP-86
-	FromCodeHash,
-	/// Address is calculated from code hash and sender. Used by CREATE_P2SH instruction.
+	/// Address is calculated from sender, salt and code hash. pWASM `create2` scheme and EIP-1014 CREATE2 scheme.
+	FromSenderSaltAndCodeHash(H256),
+	/// Address is calculated from code hash and sender. Used by pwasm create ext.
 	FromSenderAndCodeHash,
 }

 /// Externalities interface for EVMs
 pub trait Ext {
+	/// Returns the storage value for a given key if reversion happens on the current transaction.
+	fn initial_storage_at(&self, key: &H256) -> Result<H256>;
+
 	/// Returns a value for given key.
 	fn storage_at(&self, key: &H256) -> Result<H256>;

@@ -106,10 +109,13 @@ pub trait Ext {
 	) -> MessageCallResult;

 	/// Returns code at given address
-	fn extcode(&self, address: &Address) -> Result<Arc<Bytes>>;
+	fn extcode(&self, address: &Address) -> Result<Option<Arc<Bytes>>>;
+
+	/// Returns code hash at given address
+	fn extcodehash(&self, address: &Address) -> Result<Option<H256>>;

 	/// Returns code size at given address
-	fn extcodesize(&self, address: &Address) -> Result<usize>;
+	fn extcodesize(&self, address: &Address) -> Result<Option<usize>>;

 	/// Creates log entry with given topics and data
 	fn log(&mut self, topics: Vec<H256>, data: &[u8]) -> Result<()>;
@@ -134,8 +140,11 @@ pub trait Ext {
 	/// then A depth is 0, B is 1, C is 2 and so on.
 	fn depth(&self) -> usize;

-	/// Increments sstore refunds count by 1.
-	fn inc_sstore_clears(&mut self);
+	/// Increments sstore refunds counter.
+	fn add_sstore_refund(&mut self, value: U256);
+
+	/// Decrements sstore refunds counter.
+	fn sub_sstore_refund(&mut self, value: U256);

 	/// Decide if any more operations should be traced. Passthrough for the VM trace.
 	fn trace_next_instruction(&mut self, _pc: usize, _instruction: u8, _current_gas: U256) -> bool { false }
--- a/ethcore/vm/src/schedule.rs
+++ b/ethcore/vm/src/schedule.rs
@@ -22,10 +22,12 @@ pub struct Schedule {
 	pub exceptional_failed_code_deposit: bool,
 	/// Does it have a delegate cal
 	pub have_delegate_call: bool,
-	/// Does it have a CREATE_P2SH instruction
+	/// Does it have a CREATE2 instruction
 	pub have_create2: bool,
 	/// Does it have a REVERT instruction
 	pub have_revert: bool,
+	/// Does it have a EXTCODEHASH instruction
+	pub have_extcodehash: bool,
 	/// VM stack limit
 	pub stack_limit: usize,
 	/// Max number of nested calls/creates
@@ -92,6 +94,8 @@ pub struct Schedule {
 	pub extcodecopy_base_gas: usize,
 	/// Price of BALANCE
 	pub balance_gas: usize,
+	/// Price of EXTCODEHASH
+	pub extcodehash_gas: usize,
 	/// Price of SUICIDE
 	pub suicide_gas: usize,
 	/// Amount of additional gas to pay when SUICIDE credits a non-existant account
@@ -113,8 +117,10 @@ pub struct Schedule {
 	pub have_bitwise_shifting: bool,
 	/// Kill basic accounts below this balance if touched.
 	pub kill_dust: CleanDustMode,
-	/// Enable EIP-86 rules
-	pub eip86: bool,
+	/// Enable EIP-1283 rules
+	pub eip1283: bool,
+	/// VM execution does not increase null signed address nonce if this field is true.
+	pub keep_unsigned_nonce: bool,
 	/// Wasm extra schedule settings, if wasm activated
 	pub wasm: Option<WasmCosts>,
 }
@@ -145,6 +151,10 @@ pub struct WasmCosts {
 	pub opcodes_mul: u32,
 	/// Cost of wasm opcode is calculated as TABLE_ENTRY_COST * `opcodes_mul` / `opcodes_div`
 	pub opcodes_div: u32,
+	/// Whether create2 extern function is activated.
+	pub have_create2: bool,
+	/// Whether gasleft extern function is activated.
+	pub have_gasleft: bool,
 }

 impl Default for WasmCosts {
@@ -162,6 +172,8 @@ impl Default for WasmCosts {
 			max_stack_height: 64*1024,
 			opcodes_mul: 3,
 			opcodes_div: 8,
+			have_create2: false,
+			have_gasleft: false,
 		}
 	}
 }
@@ -197,6 +209,7 @@ impl Schedule {
 			have_revert: false,
 			have_return_data: false,
 			have_bitwise_shifting: false,
+			have_extcodehash: false,
 			stack_limit: 1024,
 			max_depth: 1024,
 			tier_step_gas: [0, 2, 3, 5, 8, 10, 20, 0],
@@ -229,6 +242,7 @@ impl Schedule {
 			copy_gas: 3,
 			extcodesize_gas: 700,
 			extcodecopy_base_gas: 700,
+			extcodehash_gas: 400,
 			balance_gas: 400,
 			suicide_gas: 5000,
 			suicide_to_new_account_cost: 25000,
@@ -238,7 +252,8 @@ impl Schedule {
 			blockhash_gas: 20,
 			have_static_call: false,
 			kill_dust: CleanDustMode::Off,
-			eip86: false,
+			eip1283: false,
+			keep_unsigned_nonce: false,
 			wasm: None,
 		}
 	}
@@ -268,6 +283,7 @@ impl Schedule {
 			have_revert: false,
 			have_return_data: false,
 			have_bitwise_shifting: false,
+			have_extcodehash: false,
 			stack_limit: 1024,
 			max_depth: 1024,
 			tier_step_gas: [0, 2, 3, 5, 8, 10, 20, 0],
@@ -300,6 +316,7 @@ impl Schedule {
 			copy_gas: 3,
 			extcodesize_gas: 20,
 			extcodecopy_base_gas: 20,
+			extcodehash_gas: 400,
 			balance_gas: 20,
 			suicide_gas: 0,
 			suicide_to_new_account_cost: 0,
@@ -309,7 +326,8 @@ impl Schedule {
 			blockhash_gas: 20,
 			have_static_call: false,
 			kill_dust: CleanDustMode::Off,
-			eip86: false,
+			eip1283: false,
+			keep_unsigned_nonce: false,
 			wasm: None,
 		}
 	}
--- a/ethcore/vm/src/tests.rs
+++ b/ethcore/vm/src/tests.rs
@@ -24,6 +24,7 @@ use {
 	ReturnData, Ext, ContractCreateResult, MessageCallResult,
 	CreateContractAddress, Result, GasLeft,
 };
+use hash::keccak;

 pub struct FakeLogEntry {
 	pub topics: Vec<H256>,
@@ -38,6 +39,7 @@ pub enum FakeCallType {
 #[derive(PartialEq, Eq, Hash, Debug)]
 pub struct FakeCall {
 	pub call_type: FakeCallType,
+	pub create_scheme: Option<CreateContractAddress>,
 	pub gas: U256,
 	pub sender_address: Option<Address>,
 	pub receive_address: Option<Address>,
@@ -54,7 +56,7 @@ pub struct FakeExt {
 	pub store: HashMap<H256, H256>,
 	pub suicides: HashSet<Address>,
 	pub calls: HashSet<FakeCall>,
-	pub sstore_clears: usize,
+	pub sstore_clears: U256,
 	pub depth: usize,
 	pub blockhashes: HashMap<U256, H256>,
 	pub codes: HashMap<Address, Arc<Bytes>>,
@@ -103,6 +105,10 @@ impl FakeExt {
 }

 impl Ext for FakeExt {
+	fn initial_storage_at(&self, _key: &H256) -> Result<H256> {
+		Ok(H256::new())
+	}
+
 	fn storage_at(&self, key: &H256) -> Result<H256> {
 		Ok(self.store.get(key).unwrap_or(&H256::new()).clone())
 	}
@@ -132,9 +138,10 @@ impl Ext for FakeExt {
 		self.blockhashes.get(number).unwrap_or(&H256::new()).clone()
 	}

-	fn create(&mut self, gas: &U256, value: &U256, code: &[u8], _address: CreateContractAddress) -> ContractCreateResult {
+	fn create(&mut self, gas: &U256, value: &U256, code: &[u8], address: CreateContractAddress) -> ContractCreateResult {
 		self.calls.insert(FakeCall {
 			call_type: FakeCallType::Create,
+			create_scheme: Some(address),
 			gas: *gas,
 			sender_address: None,
 			receive_address: None,
@@ -158,6 +165,7 @@ impl Ext for FakeExt {

 		self.calls.insert(FakeCall {
 			call_type: FakeCallType::Call,
+			create_scheme: None,
 			gas: *gas,
 			sender_address: Some(sender_address.clone()),
 			receive_address: Some(receive_address.clone()),
@@ -168,12 +176,16 @@ impl Ext for FakeExt {
 		MessageCallResult::Success(*gas, ReturnData::empty())
 	}

-	fn extcode(&self, address: &Address) -> Result<Arc<Bytes>> {
-		Ok(self.codes.get(address).unwrap_or(&Arc::new(Bytes::new())).clone())
+	fn extcode(&self, address: &Address) -> Result<Option<Arc<Bytes>>> {
+		Ok(self.codes.get(address).cloned())
 	}

-	fn extcodesize(&self, address: &Address) -> Result<usize> {
-		Ok(self.codes.get(address).map_or(0, |c| c.len()))
+	fn extcodesize(&self, address: &Address) -> Result<Option<usize>> {
+		Ok(self.codes.get(address).map(|c| c.len()))
+	}
+
+	fn extcodehash(&self, address: &Address) -> Result<Option<H256>> {
+		Ok(self.codes.get(address).map(|c| keccak(c.as_ref())))
 	}

 	fn log(&mut self, topics: Vec<H256>, data: &[u8]) -> Result<()> {
@@ -209,8 +221,12 @@ impl Ext for FakeExt {
 		self.is_static
 	}

-	fn inc_sstore_clears(&mut self) {
-		self.sstore_clears += 1;
+	fn add_sstore_refund(&mut self, value: U256) {
+		self.sstore_clears = self.sstore_clears + value;
+	}
+
+	fn sub_sstore_refund(&mut self, value: U256) {
+		self.sstore_clears = self.sstore_clears - value;
 	}

 	fn trace_next_instruction(&mut self, _pc: usize, _instruction: u8, _gas: U256) -> bool {
--- a/ethcore/wasm/src/env.rs
+++ b/ethcore/wasm/src/env.rs
@@ -17,6 +17,7 @@
 //! Env module glue for wasmi interpreter

 use std::cell::RefCell;
+use vm::WasmCosts;
 use wasmi::{
 	self, Signature, Error, FuncRef, FuncInstance, MemoryDescriptor,
 	MemoryRef, MemoryInstance, memory_units,
@@ -47,6 +48,8 @@ pub mod ids {
 	pub const SENDER_FUNC: usize = 190;
 	pub const ORIGIN_FUNC: usize = 200;
 	pub const ELOG_FUNC: usize = 210;
+	pub const CREATE2_FUNC: usize = 220;
+	pub const GASLEFT_FUNC: usize = 230;

 	pub const PANIC_FUNC: usize = 1000;
 	pub const DEBUG_FUNC: usize = 1010;
@@ -125,6 +128,11 @@ pub mod signatures {
 		Some(I32),
 	);

+	pub const CREATE2: StaticSignature = StaticSignature(
+		&[I32, I32, I32, I32, I32],
+		Some(I32),
+	);
+
 	pub const SUICIDE: StaticSignature = StaticSignature(
 		&[I32],
 		None,
@@ -150,6 +158,11 @@ pub mod signatures {
 		None,
 	);

+	pub const GASLEFT: StaticSignature = StaticSignature(
+		&[],
+		Some(I64),
+	);
+
 	pub const GASLIMIT: StaticSignature = StaticSignature(
 		&[I32],
 		None,
@@ -195,18 +208,23 @@ fn host(signature: signatures::StaticSignature, idx: usize) -> FuncRef {
 /// Maps all functions that runtime support to the corresponding contract import
 /// entries.
 /// Also manages initial memory request from the runtime.
-#[derive(Default)]
 pub struct ImportResolver {
 	max_memory: u32,
 	memory: RefCell<Option<MemoryRef>>,
+
+	have_create2: bool,
+	have_gasleft: bool,
 }

 impl ImportResolver {
 	/// New import resolver with specifed maximum amount of inital memory (in wasm pages = 64kb)
-	pub fn with_limit(max_memory: u32) -> ImportResolver {
+	pub fn with_limit(max_memory: u32, schedule: &WasmCosts) -> ImportResolver {
 		ImportResolver {
 			max_memory: max_memory,
 			memory: RefCell::new(None),
+
+			have_create2: schedule.have_create2,
+			have_gasleft: schedule.have_gasleft,
 		}
 	}

@@ -263,6 +281,8 @@ impl wasmi::ModuleImportResolver for ImportResolver {
 			"sender" => host(signatures::SENDER, ids::SENDER_FUNC),
 			"origin" => host(signatures::ORIGIN, ids::ORIGIN_FUNC),
 			"elog" => host(signatures::ELOG, ids::ELOG_FUNC),
+			"create2" if self.have_create2 => host(signatures::CREATE2, ids::CREATE2_FUNC),
+			"gasleft" if self.have_gasleft => host(signatures::GASLEFT, ids::GASLEFT_FUNC),
 			_ => {
 				return Err(wasmi::Error::Instantiation(
 					format!("Export {} not found", field_name),
--- a/ethcore/wasm/src/lib.rs
+++ b/ethcore/wasm/src/lib.rs
@@ -90,7 +90,7 @@ impl vm::Vm for WasmInterpreter {

 		let loaded_module = wasmi::Module::from_parity_wasm_module(module).map_err(Error::Interpreter)?;

-		let instantiation_resolver = env::ImportResolver::with_limit(16);
+		let instantiation_resolver = env::ImportResolver::with_limit(16, ext.schedule().wasm());

 		let module_instance = wasmi::ModuleInstance::new(
 			&loaded_module,
--- a/ethcore/wasm/src/runtime.rs
+++ b/ethcore/wasm/src/runtime.rs
@@ -284,7 +284,8 @@ impl<'a> Runtime<'a> {
 		self.ext.set_storage(key, val).map_err(|_| Error::StorageUpdateError)?;

 		if former_val != H256::zero() && val == H256::zero() {
-			self.ext.inc_sstore_clears();
+			let sstore_clears_schedule = U256::from(self.schedule().sstore_refund_gas);
+			self.ext.add_sstore_refund(sstore_clears_schedule);
 		}

 		Ok(())
@@ -321,7 +322,7 @@ impl<'a> Runtime<'a> {
 		if self.gas_counter > self.gas_limit { return Err(Error::InvalidGasState); }
 		Ok(self.gas_limit - self.gas_counter)
 	}
-	
+
 	/// General gas charging extern.
 	fn gas(&mut self, args: RuntimeArgs) -> Result<()> {
 		let amount: u32 = args.nth_checked(0)?;
@@ -511,29 +512,7 @@ impl<'a> Runtime<'a> {
 		self.return_u256_ptr(args.nth_checked(0)?, val)
 	}

-	/// Creates a new contract
-	///
-	/// Arguments:
-	/// * endowment - how much value (in Wei) transfer to the newly created contract
-	/// * code_ptr - pointer to the code data
-	/// * code_len - lenght of the code data
-	/// * result_ptr - pointer to write an address of the newly created contract
-	pub fn create(&mut self, args: RuntimeArgs) -> Result<RuntimeValue>
-	{
-		//
-		// method signature:
-		//   fn create(endowment: *const u8, code_ptr: *const u8, code_len: u32, result_ptr: *mut u8) -> i32;
-		//
-		trace!(target: "wasm", "runtime: CREATE");
-		let endowment = self.u256_at(args.nth_checked(0)?)?;
-		trace!(target: "wasm", "       val: {:?}", endowment);
-		let code_ptr: u32 = args.nth_checked(1)?;
-		trace!(target: "wasm", "  code_ptr: {:?}", code_ptr);
-		let code_len: u32 = args.nth_checked(2)?;
-		trace!(target: "wasm", "  code_len: {:?}", code_len);
-		let result_ptr: u32 = args.nth_checked(3)?;
-		trace!(target: "wasm", "result_ptr: {:?}", result_ptr);
-
+	fn do_create(&mut self, endowment: U256, code_ptr: u32, code_len: u32, result_ptr: u32, scheme: vm::CreateContractAddress) -> Result<RuntimeValue> {
 		let code = self.memory.get(code_ptr, code_len as usize)?;

 		self.adjusted_charge(|schedule| schedule.create_gas as u64)?;
@@ -543,7 +522,7 @@ impl<'a> Runtime<'a> {
 			* U256::from(self.ext.schedule().wasm().opcodes_mul)
 			/ U256::from(self.ext.schedule().wasm().opcodes_div);

-		match self.ext.create(&gas_left, &endowment, &code, vm::CreateContractAddress::FromSenderAndCodeHash) {
+		match self.ext.create(&gas_left, &endowment, &code, scheme) {
 			vm::ContractCreateResult::Created(address, gas_left) => {
 				self.memory.set(result_ptr, &*address)?;
 				self.gas_counter = self.gas_limit -
@@ -571,6 +550,59 @@ impl<'a> Runtime<'a> {
 		}
 	}

+	/// Creates a new contract
+	///
+	/// Arguments:
+	/// * endowment - how much value (in Wei) transfer to the newly created contract
+	/// * code_ptr - pointer to the code data
+	/// * code_len - lenght of the code data
+	/// * result_ptr - pointer to write an address of the newly created contract
+	pub fn create(&mut self, args: RuntimeArgs) -> Result<RuntimeValue> {
+		//
+		// method signature:
+		//   fn create(endowment: *const u8, code_ptr: *const u8, code_len: u32, result_ptr: *mut u8) -> i32;
+		//
+		trace!(target: "wasm", "runtime: CREATE");
+		let endowment = self.u256_at(args.nth_checked(0)?)?;
+		trace!(target: "wasm", "       val: {:?}", endowment);
+		let code_ptr: u32 = args.nth_checked(1)?;
+		trace!(target: "wasm", "  code_ptr: {:?}", code_ptr);
+		let code_len: u32 = args.nth_checked(2)?;
+		trace!(target: "wasm", "  code_len: {:?}", code_len);
+		let result_ptr: u32 = args.nth_checked(3)?;
+		trace!(target: "wasm", "result_ptr: {:?}", result_ptr);
+
+		self.do_create(endowment, code_ptr, code_len, result_ptr, vm::CreateContractAddress::FromSenderAndCodeHash)
+	}
+
+	/// Creates a new contract using FromSenderSaltAndCodeHash scheme
+	///
+	/// Arguments:
+	/// * endowment - how much value (in Wei) transfer to the newly created contract
+	/// * salt - salt to be used in contract creation address
+	/// * code_ptr - pointer to the code data
+	/// * code_len - lenght of the code data
+	/// * result_ptr - pointer to write an address of the newly created contract
+	pub fn create2(&mut self, args: RuntimeArgs) -> Result<RuntimeValue> {
+		//
+		// method signature:
+		//   fn create2(endowment: *const u8, salt: *const u8, code_ptr: *const u8, code_len: u32, result_ptr: *mut u8) -> i32;
+		//
+		trace!(target: "wasm", "runtime: CREATE2");
+		let endowment = self.u256_at(args.nth_checked(0)?)?;
+		trace!(target: "wasm", "       val: {:?}", endowment);
+		let salt: H256 = self.u256_at(args.nth_checked(1)?)?.into();
+		trace!(target: "wasm", "      salt: {:?}", salt);
+		let code_ptr: u32 = args.nth_checked(2)?;
+		trace!(target: "wasm", "  code_ptr: {:?}", code_ptr);
+		let code_len: u32 = args.nth_checked(3)?;
+		trace!(target: "wasm", "  code_len: {:?}", code_len);
+		let result_ptr: u32 = args.nth_checked(4)?;
+		trace!(target: "wasm", "result_ptr: {:?}", result_ptr);
+
+		self.do_create(endowment, code_ptr, code_len, result_ptr, vm::CreateContractAddress::FromSenderSaltAndCodeHash(salt))
+	}
+
 	fn debug(&mut self, args: RuntimeArgs) -> Result<()>
 	{
 		trace!(target: "wasm", "Contract debug message: {}", {
@@ -629,6 +661,15 @@ impl<'a> Runtime<'a> {
 		self.return_u256_ptr(args.nth_checked(0)?, difficulty)
 	}

+	///	Signature: `fn gasleft() -> i64`
+	pub fn gasleft(&mut self) -> Result<RuntimeValue> {
+		Ok(RuntimeValue::from(
+			self.gas_left()? * self.ext.schedule().wasm().opcodes_mul as u64
+				/ self.ext.schedule().wasm().opcodes_div as u64
+			)
+		)
+	}
+
 	///	Signature: `fn gaslimit(dest: *mut u8)`
 	pub fn gaslimit(&mut self, args: RuntimeArgs) -> Result<()> {
 		let gas_limit = self.ext.env_info().gas_limit;
@@ -744,6 +785,8 @@ mod ext_impl {
 				SENDER_FUNC => void!(self.sender(args)),
 				ORIGIN_FUNC => void!(self.origin(args)),
 				ELOG_FUNC => void!(self.elog(args)),
+				CREATE2_FUNC => some!(self.create2(args)),
+				GASLEFT_FUNC => some!(self.gasleft()),
 				_ => panic!("env module doesn't provide function at index {}", index),
 			}
 		}
--- a/ethcore/wasm/src/tests.rs
+++ b/ethcore/wasm/src/tests.rs
@@ -20,7 +20,7 @@ use byteorder::{LittleEndian, ByteOrder};
 use ethereum_types::{H256, U256, Address};

 use super::WasmInterpreter;
-use vm::{self, Vm, GasLeft, ActionParams, ActionValue};
+use vm::{self, Vm, GasLeft, ActionParams, ActionValue, CreateContractAddress};
 use vm::tests::{FakeCall, FakeExt, FakeCallType};

 macro_rules! load_sample {
@@ -138,7 +138,7 @@ fn logger() {
 		U256::from(1_000_000_000),
 		"Logger sets 0x04 key to the trasferred value"
 	);
-	assert_eq!(gas_left, U256::from(16_181));
+	assert_eq!(gas_left, U256::from(17_716));
 }

 // This test checks if the contract can allocate memory and pass pointer to the result stream properly.
@@ -173,7 +173,7 @@ fn identity() {
 		sender,
 		"Idenity test contract does not return the sender passed"
 	);
-	assert_eq!(gas_left, U256::from(96_883));
+	assert_eq!(gas_left, U256::from(98_419));
 }

 // Dispersion test sends byte array and expect the contract to 'disperse' the original elements with
@@ -207,7 +207,7 @@ fn dispersion() {
 		result,
 		vec![0u8, 0, 125, 11, 197, 7, 255, 8, 19, 0]
 	);
-	assert_eq!(gas_left, U256::from(92_371));
+	assert_eq!(gas_left, U256::from(92_377));
 }

 #[test]
@@ -267,7 +267,7 @@ fn suicide() {
 	};

 	assert!(ext.suicides.contains(&refund));
-	assert_eq!(gas_left, U256::from(93_348));
+	assert_eq!(gas_left, U256::from(93_346));
 }

 #[test]
@@ -281,14 +281,19 @@ fn create() {
 	params.value = ActionValue::transfer(1_000_000_000);

 	let mut ext = FakeExt::new().with_wasm();
+	ext.schedule.wasm.as_mut().unwrap().have_create2 = true;

 	let gas_left = {
 		let mut interpreter = wasm_interpreter();
 		let result = interpreter.exec(params, &mut ext).expect("Interpreter to execute without any errors");
 		match result {
-			GasLeft::Known(gas) => gas,
-			GasLeft::NeedsReturn { .. } => {
-				panic!("Create contract should not return anthing because ext always fails on creation");
+			GasLeft::Known(_) => {
+				panic!("Create contract always return 40 bytes of the creation address, or in the case where it fails, return 40 bytes of zero.");
+			},
+			GasLeft::NeedsReturn { gas_left, data, apply_state } => {
+				assert!(apply_state);
+				assert_eq!(data.as_ref(), [0u8; 40].as_ref()); // FakeExt never succeeds in create.
+				gas_left
 			},
 		}
 	};
@@ -297,15 +302,28 @@ fn create() {
 	assert!(ext.calls.contains(
 		&FakeCall {
 			call_type: FakeCallType::Create,
-			gas: U256::from(59_269),
+			create_scheme: Some(CreateContractAddress::FromSenderAndCodeHash),
+			gas: U256::from(49_674),
 			sender_address: None,
 			receive_address: None,
-			value: Some(1_000_000_000.into()),
+			value: Some((1_000_000_000 / 2).into()),
 			data: vec![0u8, 2, 4, 8, 16, 32, 64, 128],
 			code_address: None,
 		}
 	));
-	assert_eq!(gas_left, U256::from(59_212));
+	assert!(ext.calls.contains(
+		&FakeCall {
+			call_type: FakeCallType::Create,
+			create_scheme: Some(CreateContractAddress::FromSenderSaltAndCodeHash(H256::from([5u8].as_ref()))),
+			gas: U256::from(6039),
+			sender_address: None,
+			receive_address: None,
+			value: Some((1_000_000_000 / 2).into()),
+			data: vec![0u8, 2, 4, 8, 16, 32, 64, 128],
+			code_address: None,
+		}
+	));
+	assert_eq!(gas_left, U256::from(5974));
 }

 #[test]
@@ -340,6 +358,7 @@ fn call_msg() {
 	assert!(ext.calls.contains(
 		&FakeCall {
 			call_type: FakeCallType::Call,
+			create_scheme: None,
 			gas: U256::from(33_000),
 			sender_address: Some(receiver),
 			receive_address: Some(Address::from([99, 88, 77, 66, 55, 44, 33, 22, 11, 0, 11, 22, 33, 44, 55, 66, 77, 88, 99, 0])),
@@ -352,6 +371,54 @@ fn call_msg() {
 	assert_eq!(gas_left, U256::from(91_672));
 }

+// The same as `call_msg`, but send a `pwasm_ethereum::gasleft`
+// value as `gas` argument to the inner pwasm_ethereum::call
+#[test]
+fn call_msg_gasleft() {
+	::ethcore_logger::init_log();
+
+	let sender: Address = "01030507090b0d0f11131517191b1d1f21232527".parse().unwrap();
+	let receiver: Address = "0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6".parse().unwrap();
+	let contract_address: Address = "0d461d4174b4ae35775c4a342f1e5e1e4e6c4db5".parse().unwrap();
+
+	let mut params = ActionParams::default();
+	params.sender = sender.clone();
+	params.address = receiver.clone();
+	params.code_address = contract_address.clone();
+	params.gas = U256::from(100_000);
+	params.code = Some(Arc::new(load_sample!("call_gasleft.wasm")));
+	params.data = Some(Vec::new());
+
+	let mut ext = FakeExt::new().with_wasm();
+	ext.schedule.wasm.as_mut().unwrap().have_gasleft = true;
+	ext.balances.insert(receiver.clone(), U256::from(10000000000u64));
+
+	let gas_left = {
+		let mut interpreter = wasm_interpreter();
+		let result = interpreter.exec(params, &mut ext).expect("Interpreter to execute without any errors");
+		match result {
+			GasLeft::Known(gas_left) => gas_left,
+			GasLeft::NeedsReturn { .. } => { panic!("Call test should not return payload"); },
+		}
+	};
+
+	trace!(target: "wasm", "fake_calls: {:?}", &ext.calls);
+	assert!(ext.calls.contains(
+		&FakeCall {
+			call_type: FakeCallType::Call,
+			create_scheme: None,
+			gas: U256::from(91_165),
+			sender_address: Some(receiver),
+			receive_address: Some(Address::from([99, 88, 77, 66, 55, 44, 33, 22, 11, 0, 11, 22, 33, 44, 55, 66, 77, 88, 99, 0])),
+			value: Some(1000000000.into()),
+			data: vec![129u8, 123, 113, 107, 101, 97],
+			code_address: Some(Address::from([99, 88, 77, 66, 55, 44, 33, 22, 11, 0, 11, 22, 33, 44, 55, 66, 77, 88, 99, 0])),
+		}
+	));
+
+	assert_eq!(gas_left, U256::from(91_671));
+}
+
 #[test]
 fn call_code() {
 	::ethcore_logger::init_log();
@@ -382,6 +449,7 @@ fn call_code() {
 	assert!(ext.calls.contains(
 		&FakeCall {
 			call_type: FakeCallType::Call,
+			create_scheme: None,
 			gas: U256::from(20_000),
 			sender_address: Some(sender),
 			receive_address: Some(receiver),
@@ -394,7 +462,7 @@ fn call_code() {
 	// siphash result
 	let res = LittleEndian::read_u32(&result[..]);
 	assert_eq!(res, 4198595614);
-	assert_eq!(gas_left, U256::from(90_038));
+	assert_eq!(gas_left, U256::from(90_037));
 }

 #[test]
@@ -429,6 +497,7 @@ fn call_static() {
 	assert!(ext.calls.contains(
 		&FakeCall {
 			call_type: FakeCallType::Call,
+			create_scheme: None,
 			gas: U256::from(20_000),
 			sender_address: Some(receiver),
 			receive_address: Some("13077bfb00000000000000000000000000000000".parse().unwrap()),
@@ -442,7 +511,7 @@ fn call_static() {
 	let res = LittleEndian::read_u32(&result[..]);
 	assert_eq!(res, 317632590);

-	assert_eq!(gas_left, U256::from(90_043));
+	assert_eq!(gas_left, U256::from(90_042));
 }

 // Realloc test
@@ -465,7 +534,7 @@ fn realloc() {
 		}
 	};
 	assert_eq!(result, vec![0u8; 2]);
-	assert_eq!(gas_left, U256::from(92_842));
+	assert_eq!(gas_left, U256::from(92_848));
 }

 #[test]
@@ -487,7 +556,7 @@ fn alloc() {
 		}
 	};
 	assert_eq!(result, vec![5u8; 1024*400]);
-	assert_eq!(gas_left, U256::from(6_893_883));
+	assert_eq!(gas_left, U256::from(6_893_881));
 }

 // Tests that contract's ability to read from a storage
@@ -515,7 +584,7 @@ fn storage_read() {
 	};

 	assert_eq!(Address::from(&result[12..32]), address);
-	assert_eq!(gas_left, U256::from(96_833));
+	assert_eq!(gas_left, U256::from(98_369));
 }

 // Tests keccak calculation
@@ -541,7 +610,7 @@ fn keccak() {
 	};

 	assert_eq!(H256::from_slice(&result), H256::from("68371d7e884c168ae2022c82bd837d51837718a7f7dfb7aa3f753074a35e1d87"));
-	assert_eq!(gas_left, U256::from(84_134));
+	assert_eq!(gas_left, U256::from(85_949));
 }

 // math_* tests check the ability of wasm contract to perform big integer operations
@@ -570,7 +639,7 @@ fn math_add() {
 		U256::from_dec_str("1888888888888888888888888888887").unwrap(),
 		(&result[..]).into()
 	);
-	assert_eq!(gas_left, U256::from(92_086));
+	assert_eq!(gas_left, U256::from(92_072));
 }

 // multiplication
@@ -592,7 +661,7 @@ fn math_mul() {
 		U256::from_dec_str("888888888888888888888888888887111111111111111111111111111112").unwrap(),
 		(&result[..]).into()
 	);
-	assert_eq!(gas_left, U256::from(91_414));
+	assert_eq!(gas_left, U256::from(91_400));
 }

 // subtraction
@@ -614,7 +683,7 @@ fn math_sub() {
 		U256::from_dec_str("111111111111111111111111111111").unwrap(),
 		(&result[..]).into()
 	);
-	assert_eq!(gas_left, U256::from(92_086));
+	assert_eq!(gas_left, U256::from(92_072));
 }

 // subtraction with overflow
@@ -656,7 +725,7 @@ fn math_div() {
 		U256::from_dec_str("1125000").unwrap(),
 		(&result[..]).into()
 	);
-	assert_eq!(gas_left, U256::from(87_376));
+	assert_eq!(gas_left, U256::from(85_700));
 }

 #[test]
@@ -684,7 +753,7 @@ fn storage_metering() {
 	};

 	// 0 -> not 0
-	assert_eq!(gas_left, U256::from(72_399));
+	assert_eq!(gas_left, U256::from(72_164));

 	// #2

@@ -703,7 +772,7 @@ fn storage_metering() {
 	};

 	// not 0 -> not 0
-	assert_eq!(gas_left, U256::from(87_399));
+	assert_eq!(gas_left, U256::from(87_164));
 }

 // This test checks the ability of wasm contract to invoke
@@ -791,7 +860,48 @@ fn externs() {
 		"Gas limit requested and returned does not match"
 	);

-	assert_eq!(gas_left, U256::from(90_435));
+	assert_eq!(gas_left, U256::from(90_428));
+}
+
+// This test checks the ability of wasm contract to invoke gasleft
+#[test]
+fn gasleft() {
+	::ethcore_logger::init_log();
+
+	let mut params = ActionParams::default();
+	params.gas = U256::from(100_000);
+	params.code = Some(Arc::new(load_sample!("gasleft.wasm")));
+
+	let mut ext = FakeExt::new().with_wasm();
+	ext.schedule.wasm.as_mut().unwrap().have_gasleft = true;
+
+	let mut interpreter = wasm_interpreter();
+	let result = interpreter.exec(params, &mut ext).expect("Interpreter to execute without any errors");
+	match result {
+		GasLeft::Known(_) => {},
+		GasLeft::NeedsReturn { gas_left, data, .. } => {
+			let gas = LittleEndian::read_u64(data.as_ref());
+			assert_eq!(gas, 93_423);
+			assert_eq!(gas_left, U256::from(93_349));
+		},
+	}
+}
+
+// This test should fail because
+// ext.schedule.wasm.as_mut().unwrap().have_gasleft = false;
+#[test]
+fn gasleft_fail() {
+	::ethcore_logger::init_log();
+
+	let mut params = ActionParams::default();
+	params.gas = U256::from(100_000);
+	params.code = Some(Arc::new(load_sample!("gasleft.wasm")));
+	let mut ext = FakeExt::new().with_wasm();
+	let mut interpreter = wasm_interpreter();
+	match interpreter.exec(params, &mut ext) {
+		Err(_) => {},
+		Ok(_) => panic!("interpreter.exec should return Err if ext.schedule.wasm.have_gasleft = false")
+	}
 }

 #[test]
@@ -817,7 +927,7 @@ fn embedded_keccak() {
 	};

 	assert_eq!(H256::from_slice(&result), H256::from("68371d7e884c168ae2022c82bd837d51837718a7f7dfb7aa3f753074a35e1d87"));
-	assert_eq!(gas_left, U256::from(84_134));
+	assert_eq!(gas_left, U256::from(85_949));
 }

 /// This test checks the correctness of log extern
@@ -852,7 +962,7 @@ fn events() {
 	assert_eq!(&log_entry.data, b"gnihtemos");

 	assert_eq!(&result, b"gnihtemos");
-	assert_eq!(gas_left, U256::from(81_351));
+	assert_eq!(gas_left, U256::from(83_161));
 }

 #[test]
--- a/evmbin/src/info.rs
+++ b/evmbin/src/info.rs
@@ -84,7 +84,7 @@ pub fn run_action<T: Informant>(
 pub fn run_transaction<T: Informant>(
 	name: &str,
 	idx: usize,
-	spec: &ethjson::state::test::ForkSpec,
+	spec: &ethjson::spec::ForkSpec,
 	pre_state: &pod_state::PodState,
 	post_root: H256,
 	env_info: &client::EnvInfo,
--- a/json/src/blockchain/blockchain.rs
+++ b/json/src/blockchain/blockchain.rs
@@ -21,8 +21,7 @@ use hash::H256;
 use blockchain::state::State;
 use blockchain::header::Header;
 use blockchain::block::Block;
-use state::test::ForkSpec;
-use spec::{Genesis, Seal, Ethereum};
+use spec::{ForkSpec, Genesis, Seal, Ethereum};

 /// Blockchain deserialization.
 #[derive(Debug, PartialEq, Deserialize)]
--- a/json/src/spec/ethash.rs
+++ b/json/src/spec/ethash.rs
@@ -116,6 +116,18 @@ pub struct EthashParams {
 	#[serde(rename="eip649Reward")]
 	pub eip649_reward: Option<Uint>,

+	/// EIP-1234 transition block.
+	#[serde(rename="eip1234Transition")]
+	pub eip1234_transition: Option<Uint>,
+
+	/// EIP-1234 bomb delay.
+	#[serde(rename="eip1234Delay")]
+	pub eip1234_delay: Option<Uint>,
+
+	/// EIP-1234 base reward.
+	#[serde(rename="eip1234Reward")]
+	pub eip1234_reward: Option<Uint>,
+
 	/// EXPIP-2 block height
 	#[serde(rename="expip2Transition")]
 	pub expip2_transition: Option<Uint>,
@@ -231,6 +243,9 @@ mod tests {
 				eip649_transition: None,
 				eip649_delay: None,
 				eip649_reward: None,
+				eip1234_transition: None,
+				eip1234_delay: None,
+				eip1234_reward: None,
 				expip2_transition: None,
 				expip2_duration_limit: None,
 			}
@@ -275,6 +290,9 @@ mod tests {
 				eip649_transition: None,
 				eip649_delay: None,
 				eip649_reward: None,
+				eip1234_transition: None,
+				eip1234_delay: None,
+				eip1234_reward: None,
 				expip2_transition: None,
 				expip2_duration_limit: None,
 			}
--- a/json/src/spec/mod.rs
+++ b/json/src/spec/mod.rs
@@ -36,7 +36,7 @@ pub use self::account::Account;
 pub use self::builtin::{Builtin, Pricing, Linear};
 pub use self::genesis::Genesis;
 pub use self::params::Params;
-pub use self::spec::Spec;
+pub use self::spec::{Spec, ForkSpec};
 pub use self::seal::{Seal, Ethereum, AuthorityRoundSeal, TendermintSeal};
 pub use self::engine::Engine;
 pub use self::state::State;
--- a/json/src/spec/params.rs
+++ b/json/src/spec/params.rs
@@ -79,9 +79,6 @@ pub struct Params {
 	#[serde(rename="validateReceiptsTransition")]
 	pub validate_receipts_transition: Option<Uint>,
 	/// See `CommonParams` docs.
-	#[serde(rename="eip86Transition")]
-	pub eip86_transition: Option<Uint>,
-	/// See `CommonParams` docs.
 	#[serde(rename="eip140Transition")]
 	pub eip140_transition: Option<Uint>,
 	/// See `CommonParams` docs.
@@ -109,6 +106,14 @@ pub struct Params {
 	#[serde(rename="eip658Transition")]
 	pub eip658_transition: Option<Uint>,
 	/// See `CommonParams` docs.
+	#[serde(rename="eip1052Transition")]
+	pub eip1052_transition: Option<Uint>,
+	/// See `CommonParams` docs.
+	#[serde(rename="eip1283Transition")]
+	pub eip1283_transition: Option<Uint>,
+	#[serde(rename="eip1014Transition")]
+	pub eip1014_transition: Option<Uint>,
+	/// See `CommonParams` docs.
 	#[serde(rename="dustProtectionTransition")]
 	pub dust_protection_transition: Option<Uint>,
 	/// See `CommonParams` docs.
@@ -143,6 +148,12 @@ pub struct Params {
 	/// Wasm activation block height, if not activated from start
 	#[serde(rename="wasmActivationTransition")]
 	pub wasm_activation_transition: Option<Uint>,
+	/// KIP4 activiation block height.
+	#[serde(rename="kip4Transition")]
+	pub kip4_transition: Option<Uint>,
+	/// KIP6 activiation block height.
+	#[serde(rename="kip6Transition")]
+	pub kip6_transition: Option<Uint>,
 }

 #[cfg(test)]
--- a/json/src/spec/spec.rs
+++ b/json/src/spec/spec.rs
@@ -21,6 +21,21 @@ use serde_json;
 use serde_json::Error;
 use spec::{Params, Genesis, Engine, State, HardcodedSync};

+/// Fork spec definition
+#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Deserialize)]
+pub enum ForkSpec {
+	EIP150,
+	EIP158,
+	Frontier,
+	Homestead,
+	Byzantium,
+	Constantinople,
+	EIP158ToByzantiumAt5,
+	FrontierToHomesteadAt5,
+	HomesteadToDaoAt5,
+	HomesteadToEIP150At5,
+}
+
 /// Spec deserialization.
 #[derive(Debug, PartialEq, Deserialize)]
 pub struct Spec {
--- a/json/src/state/test.rs
+++ b/json/src/state/test.rs
@@ -21,6 +21,7 @@ use std::collections::BTreeMap;
 use uint::Uint;
 use bytes::Bytes;
 use hash::{Address, H256};
+use spec::ForkSpec;
 use state::{Env, AccountState, Transaction};
 use maybe::MaybeEmpty;
 use serde_json::{self, Error};
@@ -97,21 +98,6 @@ impl MultiTransaction {
 	}
 }

-/// State test transaction deserialization.
-#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Deserialize)]
-pub enum ForkSpec {
-	EIP150,
-	EIP158,
-	Frontier,
-	Homestead,
-	Byzantium,
-	Constantinople,
-	EIP158ToByzantiumAt5,
-	FrontierToHomesteadAt5,
-	HomesteadToDaoAt5,
-	HomesteadToEIP150At5,
-}
-
 /// State test indexes deserialization.
 #[derive(Debug, PartialEq, Deserialize)]
 pub struct PostStateIndexes {
--- a/json/src/test/mod.rs
+++ b/json/src/test/mod.rs
@@ -45,6 +45,7 @@ pub struct DifficultyTestCase {
 	#[serde(rename="currentBlockNumber")]
 	pub current_block_number: Uint,
 }
+
 /// Blockchain test deserializer.
 #[derive(Debug, PartialEq, Deserialize)]
 pub struct DifficultyTest(BTreeMap<String, DifficultyTestCase>);
@@ -64,3 +65,59 @@ impl DifficultyTest {
 		serde_json::from_reader(reader)
 	}
 }
+
+/// Test to skip (only if issue ongoing)
+#[derive(Debug, PartialEq, Deserialize)]
+pub struct SkipStates {
+	/// Block tests
+	pub block: Vec<BlockSkipStates>,
+	/// State tests
+	pub state: Vec<StateSkipStates>,
+
+}
+
+/// Block test to skip.
+#[derive(Debug, PartialEq, Deserialize)]
+pub struct BlockSkipStates {
+	/// Issue reference.
+	pub reference: String,
+	/// Test failing name.
+	pub failing: String,
+	/// Items failing for the test.
+	pub subtests: Vec<String>,
+}
+
+/// State test to skip.
+#[derive(Debug, PartialEq, Deserialize)]
+pub struct StateSkipStates {
+	/// Issue reference.
+	pub reference: String,
+	/// Test failing name.
+	pub failing: String,
+	/// Items failing for the test.
+	pub subtests: BTreeMap<String, StateSkipSubStates>
+}
+
+/// State subtest to skip.
+#[derive(Debug, PartialEq, Deserialize)]
+pub struct StateSkipSubStates {
+	/// State test number of this item. Or '*' for all state.
+	pub subnumbers: Vec<String>,
+	/// Chain for this items.
+	pub chain: String,
+}
+
+impl SkipStates {
+	/// Loads skip states from json.
+	pub fn load<R>(reader: R) -> Result<Self, Error> where R: Read {
+		serde_json::from_reader(reader)
+	}
+
+	/// Empty skip states.
+	pub fn empty() -> Self {
+		SkipStates {
+			block: Vec::new(),
+			state: Vec::new(),
+		}
+	}
+}
--- a/json/src/transaction/test.rs
+++ b/json/src/transaction/test.rs
@@ -23,7 +23,7 @@ use serde_json::Error;
 use transaction::TransactionTest;

 /// TransactionTest test deserializer.
-#[derive(Debug, PartialEq, Deserialize)]
+#[derive(Debug, Deserialize)]
 pub struct Test(BTreeMap<String, TransactionTest>);

 impl IntoIterator for Test {
--- a/json/src/transaction/txtest.rs
+++ b/json/src/transaction/txtest.rs
@@ -16,23 +16,29 @@

 //! Transaction test deserialization.

-use uint::Uint;
+use std::collections::BTreeMap;
 use bytes::Bytes;
 use hash::Address;
-use transaction::Transaction;
+use hash::H256;
+use spec::ForkSpec;

 /// Transaction test deserialization.
-#[derive(Debug, PartialEq, Deserialize)]
+#[derive(Debug, Deserialize)]
 pub struct TransactionTest {
-	/// Block number.
-	#[serde(rename="blocknumber")]
-	pub block_number: Option<Uint>,
-	/// Transaction rlp.
 	pub rlp: Bytes,
+	pub _info: ::serde::de::IgnoredAny,
+	#[serde(flatten)]
+	pub post_state: BTreeMap<ForkSpec, PostState>,
+}
+
+/// TransactionTest post state.
+#[derive(Debug, PartialEq, Deserialize)]
+#[serde(deny_unknown_fields)]
+pub struct PostState {
 	/// Transaction sender.
 	pub sender: Option<Address>,
-	/// Transaction
-	pub transaction: Option<Transaction>,
+	/// Transaction hash.
+	pub hash: Option<H256>,
 }

 #[cfg(test)]
@@ -43,21 +49,34 @@ mod tests {
 	#[test]
 	fn transaction_deserialization() {
 		let s = r#"{
-			"blocknumber" : "0",
-			"rlp" : "0xf83f800182520894095e7baea6a6c7c4c2dfeb977efac326af552d870b801ba048b55bfa915ac795c431978d8a6a992b628d557da5ff759b307d495a3664935301",
-			"sender" : "e115cf6bb5656786569dd273705242ca72d84bc0",
-			"transaction" : {
-				"data" : "",
-				"gasLimit" : "0x5208",
-				"gasPrice" : "0x01",
-				"nonce" : "0x00",
-				"r" : "0x48b55bfa915ac795c431978d8a6a992b628d557da5ff759b307d495a36649353",
-				"s" : "0x01",
-				"to" : "095e7baea6a6c7c4c2dfeb977efac326af552d87",
-				"v" : "0x1b",
-				"value" : "0x0b"
-			}
+			"Byzantium" : {
+				"hash" : "4782cb5edcaeda1f0aef204b161214f124cefade9e146245183abbb9ca01bca5",
+				"sender" : "2ea991808ba979ba103147edfd72304ebd95c028"
+			},
+			"Constantinople" : {
+				"hash" : "4782cb5edcaeda1f0aef204b161214f124cefade9e146245183abbb9ca01bca5",
+				"sender" : "2ea991808ba979ba103147edfd72304ebd95c028"
+			},
+			"EIP150" : {
+			},
+			"EIP158" : {
+				"hash" : "4782cb5edcaeda1f0aef204b161214f124cefade9e146245183abbb9ca01bca5",
+				"sender" : "2ea991808ba979ba103147edfd72304ebd95c028"
+			},
+			"Frontier" : {
+			},
+			"Homestead" : {
+			},
+			"_info" : {
+				"comment" : "",
+				"filledwith" : "cpp-1.3.0+commit.1829957d.Linux.g++",
+				"lllcversion" : "Version: 0.4.18-develop.2017.10.11+commit.81f9f86c.Linux.g++",
+				"source" : "src/TransactionTestsFiller/ttVValue/V_equals37Filler.json",
+				"sourceHash" : "89ef69312d4c0b4e3742da501263d23d2a64f180258ac93940997ac6a17b9b19"
+			},
+			"rlp" : "0xf865808698852840a46f82d6d894095e7baea6a6c7c4c2dfeb977efac326af552d87808025a098ff921201554726367d2be8c804a7ff89ccf285ebc57dff8ae4c44b9c19ac4aa01887321be575c8095f789dd4c743dfe42c1820f9231f98a962b210e3ac2452a3"
 		}"#;
+
 		let _deserialized: TransactionTest = serde_json::from_str(s).unwrap();
 		// TODO: validate all fields
 	}
--- a/parity-clib-examples/cpp/CMakeLists.txt
+++ b/parity-clib-examples/cpp/CMakeLists.txt
@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.5)
 include(ExternalProject)

-include_directories("${CMAKE_SOURCE_DIR}/../parity-clib")
+include_directories("${CMAKE_SOURCE_DIR}/../../parity-clib")

 add_executable(parity-example main.cpp)

@@ -11,9 +11,9 @@ ExternalProject_Add(
    CONFIGURE_COMMAND ""
    BUILD_COMMAND ""
    COMMAND cargo build -p parity-clib      # Note: use --release in a real project
-    BINARY_DIR "${CMAKE_SOURCE_DIR}/../target"
+    BINARY_DIR "${CMAKE_SOURCE_DIR}/../../target"
    INSTALL_COMMAND ""
    LOG_BUILD ON)

 add_dependencies(parity-example libparity)
-target_link_libraries(parity-example "${CMAKE_SOURCE_DIR}/../target/debug/libparity.so")
+target_link_libraries(parity-example "${CMAKE_SOURCE_DIR}/../../target/debug/libparity.so")
--- a/parity/cli/mod.rs
+++ b/parity/cli/mod.rs
@@ -700,11 +700,11 @@ usage! {
 			"--price-update-period=[T]",
 			"T will be allowed to pass between each gas price update. T may be daily, hourly, a number of seconds, or a time string of the form \"2 days\", \"30 minutes\" etc..",

-			ARG arg_gas_floor_target: (String) = "4700000", or |c: &Config| c.mining.as_ref()?.gas_floor_target.clone(),
+			ARG arg_gas_floor_target: (String) = "8000000", or |c: &Config| c.mining.as_ref()?.gas_floor_target.clone(),
 			"--gas-floor-target=[GAS]",
 			"Amount of gas per block to target when sealing a new block.",

-			ARG arg_gas_cap: (String) = "6283184", or |c: &Config| c.mining.as_ref()?.gas_cap.clone(),
+			ARG arg_gas_cap: (String) = "10000000", or |c: &Config| c.mining.as_ref()?.gas_cap.clone(),
 			"--gas-cap=[GAS]",
 			"A cap on how large we will raise the gas limit per block due to transaction volume.",

@@ -1712,7 +1712,7 @@ mod tests {
 			arg_reseal_max_period: 60000u64,
 			flag_reseal_on_uncle: false,
 			arg_work_queue_size: 20usize,
-			arg_tx_gas_limit: Some("6283184".into()),
+			arg_tx_gas_limit: Some("10000000".into()),
 			arg_tx_time_limit: Some(100u64),
 			arg_relay_set: "cheap".into(),
 			arg_min_gas_price: Some(0u64),
@@ -1721,8 +1721,8 @@ mod tests {
 			arg_poll_lifetime: 60u32,
 			arg_usd_per_eth: "auto".into(),
 			arg_price_update_period: "hourly".into(),
-			arg_gas_floor_target: "4700000".into(),
-			arg_gas_cap: "6283184".into(),
+			arg_gas_floor_target: "8000000".into(),
+			arg_gas_cap: "10000000".into(),
 			arg_extra_data: Some("Parity".into()),
 			flag_tx_queue_no_unfamiliar_locals: false,
 			arg_tx_queue_size: 8192usize,
--- a/parity/cli/tests/config.full.toml
+++ b/parity/cli/tests/config.full.toml
@@ -125,14 +125,14 @@ min_gas_price = 0
 usd_per_tx = "0.0001"
 usd_per_eth = "auto"
 price_update_period = "hourly"
-gas_floor_target = "4700000"
-gas_cap = "6283184"
+gas_floor_target = "8000000"
+gas_cap = "10000000"
 tx_queue_size = 8192
 tx_queue_gas = "off"
 tx_queue_strategy = "gas_factor"
 tx_queue_ban_count = 1
 tx_queue_ban_time = 180 #s
-tx_gas_limit = "6283184"
+tx_gas_limit = "10000000"
 tx_time_limit = 100 #ms
 tx_queue_no_unfamiliar_locals = false
 extra_data = "Parity"
--- a/parity/params.rs
+++ b/parity/params.rs
@@ -286,7 +286,7 @@ impl Default for MinerExtras {
 			author: Default::default(),
 			engine_signer: Default::default(),
 			extra_data: version_data(),
-			gas_range_target: (4_700_000.into(), 6_283_184.into()),
+			gas_range_target: (8_000_000.into(), 10_000_000.into()),
 			work_notify: Default::default(),
 		}
 	}
--- a/parity/run.rs
+++ b/parity/run.rs
@@ -185,7 +185,7 @@ fn execute_light_impl(cmd: RunCmd, logger: Arc<RotatingLogger>) -> Result<Runnin
 	cmd.dirs.create_dirs(cmd.acc_conf.unlocked_accounts.len() == 0, cmd.secretstore_conf.enabled)?;

 	//print out running parity environment
-	print_running_environment(&spec.name, &cmd.dirs, &db_dirs);
+	print_running_environment(&spec.data_dir, &cmd.dirs, &db_dirs);

 	info!("Running in experimental {} mode.", Colour::Blue.bold().paint("Light Client"));

@@ -402,7 +402,7 @@ fn execute_impl<Cr, Rr>(cmd: RunCmd, logger: Arc<RotatingLogger>, on_client_rq:
 	}

 	//print out running parity environment
-	print_running_environment(&spec.name, &cmd.dirs, &db_dirs);
+	print_running_environment(&spec.data_dir, &cmd.dirs, &db_dirs);

 	// display info about used pruning algorithm
 	info!("State DB configuration: {}{}{}",
@@ -926,9 +926,9 @@ fn daemonize(_pid_file: String) -> Result<(), String> {
 	Err("daemon is no supported on windows".into())
 }

-fn print_running_environment(spec_name: &String, dirs: &Directories, db_dirs: &DatabaseDirectories) {
+fn print_running_environment(data_dir: &str, dirs: &Directories, db_dirs: &DatabaseDirectories) {
 	info!("Starting {}", Colour::White.bold().paint(version()));
-	info!("Keys path {}", Colour::White.bold().paint(dirs.keys_path(spec_name).to_string_lossy().into_owned()));
+	info!("Keys path {}", Colour::White.bold().paint(dirs.keys_path(data_dir).to_string_lossy().into_owned()));
 	info!("DB path {}", Colour::White.bold().paint(db_dirs.db_root_path().to_string_lossy().into_owned()));
 }

--- a/rpc/src/authcodes.rs
+++ b/rpc/src/authcodes.rs
@@ -50,8 +50,6 @@ impl TimeProvider for DefaultTimeProvider {
 const TIME_THRESHOLD: u64 = 7;
 /// minimal length of hash
 const TOKEN_LENGTH: usize = 16;
-/// special "initial" token used for authorization when there are no tokens yet.
-const INITIAL_TOKEN: &'static str = "initial";
 /// Separator between fields in serialized tokens file.
 const SEPARATOR: &'static str = ";";
 /// Number of seconds to keep unused tokens.
@@ -163,16 +161,6 @@ impl<T: TimeProvider> AuthCodes<T> {

 		let as_token = |code| keccak(format!("{}:{}", code, time));

-		// Check if it's the initial token.
-		if self.is_empty() {
-			let initial = &as_token(INITIAL_TOKEN) == hash;
-			// Initial token can be used only once.
-			if initial {
-				let _ = self.generate_new();
-			}
-			return initial;
-		}
-
 		// look for code
 		for code in &mut self.codes {
 			if &as_token(&code.code) == hash {
@@ -239,7 +227,7 @@ mod tests {
 	}

 	#[test]
-	fn should_return_true_if_code_is_initial_and_store_is_empty() {
+	fn should_return_false_even_if_code_is_initial_and_store_is_empty() {
 		// given
 		let code = "initial";
 		let time = 99;
@@ -250,7 +238,7 @@ mod tests {
 		let res2 = codes.is_valid(&generate_hash(code, time), time);

 		// then
-		assert_eq!(res1, true);
+		assert_eq!(res1, false);
 		assert_eq!(res2, false);
 	}

--- a/rpc/src/tests/ws.rs
+++ b/rpc/src/tests/ws.rs
@@ -136,7 +136,7 @@ mod testing {
 	}

 	#[test]
-	fn should_allow_initial_connection_but_only_once() {
+	fn should_not_allow_initial_connection_even_once() {
 		// given
 		let (server, port, authcodes) = serve();
 		let code = "initial";
@@ -160,26 +160,9 @@ mod testing {
 			timestamp,
 			)
 		);
-		let response2 = http_client::request(server.addr(),
-			&format!("\
-				GET / HTTP/1.1\r\n\
-				Host: 127.0.0.1:{}\r\n\
-				Connection: Close\r\n\
-				Sec-WebSocket-Key: x3JJHMbDL1EzLkh9GBhXDw==\r\n\
-				Sec-WebSocket-Protocol:{:?}_{}\r\n\
-				Sec-WebSocket-Version: 13\r\n\
-				\r\n\
-				{{}}
-			",
-			port,
-			keccak(format!("{}:{}", code, timestamp)),
-			timestamp,
-			)
-		);

 		// then
-		assert_eq!(response1.status, "HTTP/1.1 101 Switching Protocols".to_owned());
-		assert_eq!(response2.status, "HTTP/1.1 403 Forbidden".to_owned());
-		http_client::assert_security_headers_present(&response2.headers, None);
+		assert_eq!(response1.status, "HTTP/1.1 403 Forbidden".to_owned());
+		http_client::assert_security_headers_present(&response1.headers, None);
 	}
 }
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
André Silva	db3a98903b	[stable] Backport constantinople changes (#9723 ) * ethash: implement EIP-1234 (#9187) * Implement EIP-1052 (EXTCODEHASH) and fix several issues in state account cache (#9234) * Implement EIP-1052 and fix several issues related to account cache * Fix jsontests * Merge two matches together * Avoid making unnecessary Arc<Vec> * Address grumbles * Comply EIP-86 with the new definition (#9140) * Comply EIP-86 with the new CREATE2 opcode * Fix rpc compile * Fix interpreter CREATE/CREATE2 stack pop difference * Add unreachable! to fix compile * Fix instruction_info * Fix gas check due to new stack item * Add new tests in executive * Fix have_create2 comment * Remove all unused references of eip86_transition and block_number * Implement KIP4: create2 for wasm (#9277) * Basic implementation for kip4 * Add KIP-4 config flags * typo: docs fix * Fix args offset * Add tests for create2 * tests: evm * Update wasm-tests and fix all gas costs * Update wasm-tests * Update wasm-tests and fix gas costs * `gasleft` extern implemented for WASM runtime (kip-6) (#9357) * Wasm gasleft extern added * wasm_gasleft_activation_transition -> kip4_transition * use kip-6 switch * gasleft_panic -> gasleft_fail rename * call_msg_gasleft test added and gas_left agustments because this https://github.com/paritytech/wasm-tests/pull/52 * change .. to _ * fix comment for the have_gasleft param * update tests (`0edbf860ff`) * Add EIP-1014 transition config flag (#9268) * Add EIP-1014 transition config flag * Remove EIP-86 configs * Change CREATE2 opcode index to 0xf5 * Move salt to the last item in the stack * Change sendersaltandaddress scheme to comply with current EIP-1014 * Fix json configs * Fix create2 test * Fix deprecated comments * EIP 1283: Net gas metering for SSTORE without dirty maps (#9319) * Implement last_checkpoint_storage_at * Add reverted_storage_at for externalities * sstore_clears_count -> sstore_clears_refund * Implement eip1283 for evm * Add eip1283Transition params * evm: fix tests * jsontests: fix test * Return checkpoint index when creating * Comply with spec Version II * Fix docs * Fix jsontests feature compile * Address grumbles * Fix no-checkpoint-entry case * Remove unnecessary expect * Add test for State::checkpoint_storage_at * Add executive level test for eip1283 * Hard-code transaction_checkpoint_index to 0 * Fix jsontests * Add tests for checkpoint discard/revert * Require checkpoint to be empty for kill_account and commit * Get code coverage * Use saturating_add/saturating_sub * Fix issues in insert_cache * Clear the state again * Fix original_storage_at * Early return for empty RLP trie storage * Update comments * Fix borrow_mut issue * Simplify checkpoint_storage_at if branches * Better commenting for gas handling code * Address naming grumbles * More tests * Fix an issue in overwrite_with * Add another test * Fix comment * Remove unnecessary bracket * Move orig to inner if * Remove test coverage for this PR * Add tests for executive original value * Add warn! for an unreachable cause * Update state tests execution model (#9440) * Update & fix JSON state tests. * Update tests to be able to run ethtest at 021fe3d410773024cd5f0387e62db6e6ec800f32. - Touch user in state - Adjust transaction tests to new json format * Switch to same commit for submodule ethereum/test as geth (next includes constantinople changes). Added test `json_tests::trie::generic::TrieTests_trieanyorder` and a few difficulty tests. * Remove trietestnextprev as it would require to parse differently and implement it. * Support new (shitty) format of transaction tests. * Ignore junk in ethereum/tests repo. * Ignore incorrect test. * Update to a later commit * Move block number to a constant. * Fix ZK2 test - touched account should also be cleared. * Fix conflict resolution * Fix checkpointing when creating contract failed (#9514) * In create memory calculation is the same for create2 because the additional parameter was popped before. (#9522) * Enable all Constantinople hard fork changes in constantinople_test.json (#9505) * Enable all Constantinople hard fork changes in constantinople_test.json * Address grumbles * Remove EIP-210 activation * 8m -> 5m * Temporarily add back eip210 transition so we can get test passed * Add eip210_test and remove eip210 transition from const_test * Add constantinople conf to EvmTestClient. (#9570) * Add constantinople conf to EvmTestClient. * Skip some test to update submodule etheureum/tests submodule to latest. * Put skipping 'under issue' test behind a feature. * Change blockReward for const-test to pass ethereum/tests * Update tests to new constantinple definition (change of reward at block 5). Switch 'reference' to string, that way we can include issues from others repo (more flexible)Update tests to new constantinple definition (change of reward at block 5). Switch 'reference' to string, that way we can include issues from others repo (more flexible). * Fix modexp and bn128_mul gas prices in chain config * Changes `run_test_path` method to append its directory results (without that it stop testing at the first file failure). Add some missing tests. Add skip for those (block create2 is one hundred percent false but on hive we can see that geth and aleth got similar issue for this item). * retab current.json * Update reference to parity issue for failing tests. * Hardfork the testnets (#9562) * ethcore: propose hardfork block number 4230000 for ropsten * ethcore: propose hardfork block number 9000000 for kovan * ethcore: enable kip-4 and kip-6 on kovan * etcore: bump kovan hardfork to block 9.2M * ethcore: fix ropsten constantinople block number to 4.2M * ethcore: disable difficulty_test_ropsten until ethereum/tests are updated upstream * Don't hash the init_code of CREATE. (#9688) * Implement CREATE2 gas changes and fix some potential overflowing (#9694) * Implement CREATE2 gas changes and fix some potential overflowing * Ignore create2 state tests * Split CREATE and CREATE2 in gasometer * Generalize rounding (x + 31) / 32 to to_word_size * ethcore: delay ropsten hardfork (#9704) * Add hardcoded headers (#9730) * add foundation hardcoded header #6486017 * add ropsten hardcoded headers #4202497 * add kovan hardcoded headers #9023489 * gitlab ci: releasable_branches: change variables condition to schedule (#9729) * HF in POA Core (2018-10-22) (#9724) https://github.com/poanetwork/poa-chain-spec/pull/87	2018-10-10 18:55:52 +02:00
Afri Schoedon	93b25d5242	Backports for stable 2.0.7 (#9648 ) * parity-version: bump stable to 2.0.7 * HF in POA Sokol (2018-09-19) (#9607) https://github.com/poanetwork/poa-chain-spec/pull/86 * fix failing node-table tests on mac os, closes #9632 (#9633) * fix(light_fetch): avoid race with BlockNumber::Latest (#9665) * CI: Remove unnecessary pipes (#9681) * ci: reduce gitlab pipelines significantly * ci: build pipeline for PR * ci: remove dead weight * ci: remove github release script * ci: remove forever broken aura tests * ci: add random stuff to the end of the pipes * ci: add wind and mac to the end of the pipe * ci: remove snap artifacts * ci: (re)move dockerfiles * ci: clarify job names * ci: add cargo audit job * ci: make audit script executable * ci: ignore snap and docker files for rust check * ci: simplify audit script * ci: rename misc to optional * ci: add publish script to releaseable branches * ci: more verbose cp command for windows build * ci: fix weird binary checksum logic in push script * ci: fix regex in push script for windows * ci: simplify gitlab caching * docs: align README with ci changes * ci: specify default cargo target dir * ci: print verbose environment * ci: proper naming of scripts * ci: restore docker files * ci: use docker hub file * ci: use cargo home instead of cargo target dir * ci: touch random rust file to trigger real builds * ci: set cargo target dir for audit script * ci: remove temp file * ci: don't export the cargo target dir in the audit script * ci: fix windows unbound variable * docs: fix gitlab badge path * rename deprecated gitlab ci variables https://docs.gitlab.com/ee/ci/variables/#9-0-renaming * ci: fix git compare for nightly builds * test: skip c++ example for all platforms but linux * ci: add random rust file to trigger tests * ci: remove random rust file * disable cpp lib test for mac, win and beta (#9686) * cleanup ci merge * parity: bump clib * ci: fix tests * ci: disable c++ example * Docker: run as parity user (#9689) * CI: Skip docs job for nightly (#9693) * ci: force-tag wiki changes * ci: force-tag wiki changes * ci: skip docs job for master and nightly * ci: revert docs job checking for nightly tag * ci: exclude docs job from nightly builds in gitlab script * fix (light/provider) : Make `read_only executions` read-only (#9591) * `ExecutionsRequest` from light-clients as read-only This changes so all `ExecutionRequests` from light-clients are executed as read-only which the `virtual``flag == true ensures. This boost up the current transaction to always succeed Note, this only affects `eth_estimateGas` and `eth_call` AFAIK. * grumbles(revert renaming) : TransactionProof * grumbles(trace) : remove incorrect trace * grumbles(state/prove_tx) : explicit `virt` Remove the boolean flag to determine that a `state::prove_transaction` whether it should be executed in a virtual context or not. Because of that also rename the function to `state::prove_transction_virtual` to make more clear * ethcore: fix detection of major import (#9552) * sync: set state to idle after sync is completed * sync: refactor sync reset * parity: revert clib bump and fix tests * Fix path to parity.h (#9274) * Fix path to parity.h * Fix other paths as well * ethcore-io retries failed work steal (#9651) * ethcore-io uses newer version of crossbeam && retries failed work steal * ethcore-io non-mio service uses newer crossbeam	2018-10-10 17:33:03 +02:00
Andronik Ordian	7658d22f3a	stable(rpc-docs): avoid recursive copy (#9613 ) * stable: avoid recursive cp in rpc-docs * rpc-docs: remove cd ..	2018-09-21 16:28:04 +02:00
gabriel klawitter	1b3b115e55	rpc-docs should push the branch (#9612 )	2018-09-21 14:38:44 +02:00
Afri Schoedon	549e202fc1	Backports to 2.0.6 stable (#9600 )	2018-09-19 20:28:36 +02:00
gabriel klawitter	de974fe954	ci: disable build cache for json-rpc-docs (#9587 )	2018-09-19 10:07:35 +02:00
Afri Schoedon	7dc4d349a1	Backports for 2.0.5 stable (#9519 ) * parity-version: mark 2.0.5 track stable * deps: bump fs-swap to 0.2.4 * Remove initial token for WS. (#9545) * version: mark release critical * Increase Gas-floor-target and Gas Cap (#9564) + Gas-floor-target increased to 8M by default + Gas-cap increased to 10M by default * Improve P2P discovery (#9526) * Add `target` to Rust traces * network-devp2p: Don't remove discovery peer in main sync * network-p2p: Refresh discovery more often * Update Peer discovery protocol * Run discovery more often when not enough nodes connected * Start the first discovery early * Update fast discovery rate * Fix tests * Fix `ping` tests * Fixing remote Node address ; adding PingPong round * Fix tests: update new +1 PingPong round * Increase slow Discovery rate Check in flight FindNode before pings * Add `deprecated` to deprecated_echo_hash * Refactor `discovery_round` branching * net_version caches network_id to avoid redundant aquire of sync read lock (#9544) * net_version caches network_id to avoid redundant aquire of sync read lock, #8746 * use lower_hex display formatting for net_peerCount rpc method	2018-09-17 13:56:25 +02:00
Denis S. Soldatov aka General-Beck	47d7197fb9	Update snapcraft.yaml (#9530 ) fix DEPRICATED `prepare ` fix TODO https://bugs.launchpad.net/snapcraft/+bug/1778530	2018-09-11 22:32:10 +03:00
Afri Schoedon	e2e1d221d5	Beta backports to 2.0.4 (#9452 ) * parity-version: bump beta to 2.0.4 * [light/jsonrpc] Provide the actual account for `eth_coinbase` RPC and unify error handeling for light and full client (#9383) * Provide the actual `account` for eth_coinbase The previous implementation always provided the `zero address` on `eth_coinbase` RPC. Now, instead the actual address is returned on success or an error when no account(s) is found! * full client `eth_coinbase` return err In the full-client return an error when no account is found instead of returning the `zero address` * Remove needless blocks on single import * Remove needless `static` lifetime on const * Fix `rpc_eth_author` test * parity: print correct keys path on startup (#9501) * aura: don't report skipped primaries when empty steps are enabled (#9435) * Only check warp syncing for eth_getWorks (#9484) * Only check warp syncing for eth_getWorks * Use SyncStatus::is_snapshot_syncing * Fix Snapshot restoration failure on Windows (#9491) * Close Blooms DB files before DB restoration * PR Grumbles I * PR Grumble * Grumble	2018-09-10 22:52:45 +02:00