Backports for Beta 2.3.3 (#10333 )

* version: bump beta to 2.3.3 * import rpc transactions sequentially (#10051) * import rpc transactions sequentially * use impl trait in argument position, renamed ProspectiveDispatcher to WithPostSign * grouped imports * integrates PostSign with ProspectiveSigner * fix spaces, removed unnecessary type cast and duplicate polling * clean up code style * Apply suggestions from code review * Fix Windows build (#10284) * Don't run the CPP example on CI (#10285) * Don't run the CPP example on CI * Add comment * CI optimizations (#10297) * CI optimizations * fix stripping * new dockerfile * no need n submodule upd * review * moved dockerfile * it becomes large * onchain update depends on s3 * fix dependency * fix cache status * fix cache status * new cache status * fix publish job (#10317) * fix publish job * dashes and colonels * Add Statetest support for Constantinople Fix (#10323) * Update Ethereum tests repo to v6.0.0-beta.3 tag * Add spec for St.Peter's / ConstantinopleFix statetests * Properly handle check_epoch_end_signal errors (#10015) * Make check_epoch_end_signal to only use immutable data * Move check_epoch_end_signals out of commit_block * Make check_epoch_end_signals possible to fail * Actually return the error from check_epoch_end_signals * Remove a clone * Fix import error * cargo: fix compilation * fix(add helper for timestamp overflows) (#10330) * fix(add helper timestamp overflows) * fix(simplify code) * fix(make helper private) * Remove CallContract and RegistryInfo re-exports from `ethcore/client` (#10205) * Remove re-export of `CallContract` and `RegistryInfo` from `ethcore/client` * Remove CallContract and RegistryInfo re-exports again This was missed while fixing merge conflicts * fix(docker): fix not receives SIGINT (#10059) * fix(docker): fix not receives SIGINT * fix: update with reviews * update with review * update * update * snap: official image / test (#10168) * official image / test * fix / test * bit more necromancy * fix paths * add source bin/df /test * add source bin/df /test2 * something w paths /test * something w paths /test * add source-type /test * show paths /test * copy plugin /test * plugin -> nil * install rhash * no questions while installing rhash * publish snap only for release * Don't add discovery initiators to the node table (#10305) * Don't add discovery initiators to the node table * Use enums for tracking state of the nodes in discovery * Dont try to ping ourselves * Fix minor nits * Update timeouts when observing an outdated node * Extracted update_bucket_record from update_node * Fixed typo * Fix two final nits from @todr * Extract CallContract and RegistryInfo traits into their own crate (#10178) * Create call-contract crate * Add license * First attempt at using extracted CallContract trait * Remove unneeded `extern crate` calls * Move RegistryInfo trait into call-contract crate * Move service-transaction-checker from ethcore to ethcore-miner * Update Cargo.lock file * Re-export call_contract * Merge CallContract and RegistryInfo imports * Remove commented code * Add documentation to call_contract crate * Add TODO for removal of re-exports * Update call-contract crate description Co-Authored-By: HCastano <HCastano@users.noreply.github.com> * Rename call-contract crate to ethcore-call-contract * Remove CallContract and RegistryInfo re-exports from `ethcore/client` (#10205) * Remove re-export of `CallContract` and `RegistryInfo` from `ethcore/client` * Remove CallContract and RegistryInfo re-exports again This was missed while fixing merge conflicts * fixed: types::transaction::SignedTransaction; (#10229) * fix daemonize dependency * fix build * change docker image based on debian instead of ubuntu due to the chan… (#10336) * change docker image based on debian instead of ubuntu due to the changes of the build container * role back docker build image and docker deploy image to ubuntu:xenial based (#10338) * perform stripping during build (#10208) * perform stripping during build (#10208) * perform stripping during build * var RUSTFLAGS
Additional error for invalid gas (#10327 ) (#10328 )
2019-02-13 11:00:41 +01:00 · 2019-02-12 10:52:55 +01:00 · 2019-02-03 14:02:40 +01:00 · 2019-02-03 12:50:38 +01:00 · 2019-02-03 12:44:26 +01:00 · 2019-01-30 12:02:02 +01:00
80 changed files with 1004 additions and 518 deletions
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -2,11 +2,14 @@ stages:
  - test
  - build
  - publish
+  - publish-onchain
  - optional

 image:                             parity/rust:gitlab-ci

 variables:
+  GIT_STRATEGY:                    fetch
+  GIT_SUBMODULE_STRATEGY:          recursive
  CI_SERVER_NAME:                  "GitLab CI"
  CARGO_HOME:                      "${CI_PROJECT_DIR}/.cargo"
  CARGO_TARGET:                    x86_64-unknown-linux-gnu
@@ -40,25 +43,29 @@ test-linux:
  variables:
    RUN_TESTS:                     all
  script:
-    - scripts/gitlab/test-all.sh stable
+    - scripts/gitlab/test-all.sh
+    - sccache -s
  tags:
-    - rust-stable
+    - linux-docker

 test-audit:
  stage:                           test
  script:
-    - scripts/gitlab/cargo-audit.sh
+    - set -e
+    - set -u
+    - cargo audit
  tags:
-    - rust-stable
+    - linux-docker

 build-linux:
  stage:                           build
  only:                            *releaseable_branches
  script:
    - scripts/gitlab/build-unix.sh
+    - sccache -s
  <<:                              *collect_artifacts
  tags:
-    - rust-stable
+    - linux-docker

 build-darwin:
  stage:                           build
@@ -96,9 +103,9 @@ publish-docker:
    - scripts/gitlab/publish-docker.sh parity

 publish-snap:
-  stage:                           publish
+  stage:                           optional #publish
  only:                            *releaseable_branches
-  image:                           parity/snapcraft:gitlab-ci
+  image:                           snapcore/snapcraft
  variables:
    BUILD_ARCH:                  amd64
  cache: {}
@@ -112,19 +119,66 @@ publish-snap:
  allow_failure:                   true
  <<:                              *collect_artifacts

-publish-awss3:
-  stage:                           publish
+publish-onnet-update:
+  stage:                           publish-onchain
  only:                            *releaseable_branches
-  cache: {}
+  cache:                           {}
  dependencies:
    - build-linux
    - build-darwin
    - build-windows
+    - publish-awss3-release
  before_script:                   *determine_version
  script:
-    - scripts/gitlab/publish-awss3.sh
+    - scripts/gitlab/publish-onnet-update.sh
  tags:
-    - shell
+    - linux-docker
+
+# configures aws for fast uploads/syncs
+.s3-before-script:                &s3-before-script
+  before_script:
+    - mkdir -p ${HOME}/.aws
+    - |
+      cat > ${HOME}/.aws/config <<EOC
+      [default]
+      s3 =
+        max_concurrent_requests = 20
+        max_queue_size = 10000
+        multipart_threshold = 64MB
+        multipart_chunksize = 16MB
+        max_bandwidth = 50MB/s
+        use_accelerate_endpoint = false
+        addressing_style = path
+      EOC
+
+publish-awss3-release:
+  image:                           parity/awscli:latest
+  stage:                           publish
+  only:                            *releaseable_branches
+  cache:                           {}
+  dependencies:
+    - build-linux
+    - build-darwin
+    - build-windows
+  variables:
+    GIT_STRATEGY:                  none
+  <<:                              *s3-before-script
+  script:
+    - echo "__________Push binaries to AWS S3____________"
+    - case "${SCHEDULE_TAG:-${CI_COMMIT_REF_NAME}}" in
+        (beta|stable|nightly)
+          export BUCKET=releases.parity.io/ethereum;
+          ;;
+        (*)
+          export BUCKET=builds-parity;
+          ;;
+      esac
+    - aws s3 sync ./artifacts s3://${BUCKET}/${SCHEDULE_TAG:-${CI_COMMIT_REF_NAME}}/
+  after_script:
+    - aws s3 ls s3://${BUCKET}/${SCHEDULE_TAG:-${CI_COMMIT_REF_NAME}}/
+        --recursive --human-readable --summarize
+  tags:
+  - linux-docker

 publish-docs:
  stage:                            publish
@@ -146,25 +200,7 @@ build-android:
  script:
    - scripts/gitlab/build-unix.sh
  tags:
-    - rust-arm
+    - linux-docker
  allow_failure:                   true
+  <<:                              *collect_artifacts

-test-beta:
-  stage:                           optional
-  variables:
-    RUN_TESTS:                     cargo
-  script:
-    - scripts/gitlab/test-all.sh beta
-  tags:
-    - rust-beta
-  allow_failure:                   true
-
-test-nightly:
-  stage:                           optional
-  variables:
-    RUN_TESTS:                     all
-  script:
-    - scripts/gitlab/test-all.sh nightly
-  tags:
-    - rust-nightly
-  allow_failure:                   true
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -292,7 +292,7 @@ dependencies = [
 "ethereum-types 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "ethjson 0.1.0",
 "ethkey 0.3.0",
- "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize 0.4.2 (git+https://github.com/cheme/heapsize.git?branch=ec-macfix)",
 "keccak-hash 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "parity-bytes 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "parity-machine 0.1.0",
@@ -405,7 +405,7 @@ dependencies = [
 "arrayvec 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
 "cfg-if 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "crossbeam-utils 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "memoffset 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "nodrop 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
 "scopeguard 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -419,7 +419,7 @@ dependencies = [
 "arrayvec 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
 "cfg-if 0.1.5 (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 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "memoffset 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "scopeguard 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -432,7 +432,7 @@ dependencies = [
 "arrayvec 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
 "cfg-if 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "crossbeam-utils 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "memoffset 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "scopeguard 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -539,7 +539,7 @@ name = "docopt"
 version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "regex 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "serde 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)",
 "serde_derive 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -561,7 +561,7 @@ dependencies = [
 "indexmap 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "itertools 0.7.8 (registry+https://github.com/rust-lang/crates.io-index)",
 "keccak-hash 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "lunarity-lexer 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "regex 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "rustc-hex 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -583,7 +583,7 @@ name = "elastic-array"
 version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize 0.4.2 (git+https://github.com/cheme/heapsize.git?branch=ec-macfix)",
 ]

 [[package]]
@@ -695,6 +695,7 @@ dependencies = [
 "ethash 1.12.0",
 "ethcore-blockchain 0.1.0",
 "ethcore-bloom-journal 0.1.0",
+ "ethcore-call-contract 0.1.0",
 "ethcore-db 0.1.0",
 "ethcore-io 1.12.0",
 "ethcore-miner 1.12.0",
@@ -707,7 +708,7 @@ dependencies = [
 "fake-hardware-wallet 0.0.1",
 "hardware-wallet 1.12.0",
 "hashdb 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize 0.4.2 (git+https://github.com/cheme/heapsize.git?branch=ec-macfix)",
 "itertools 0.5.10 (registry+https://github.com/rust-lang/crates.io-index)",
 "journaldb 0.2.0",
 "keccak-hash 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -715,7 +716,7 @@ dependencies = [
 "kvdb 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "kvdb-memorydb 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "kvdb-rocksdb 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "len-caching-lock 0.1.1",
 "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "lru-cache 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -761,7 +762,7 @@ dependencies = [
 "ethcore-db 0.1.0",
 "ethereum-types 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "ethkey 0.3.0",
- "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize 0.4.2 (git+https://github.com/cheme/heapsize.git?branch=ec-macfix)",
 "itertools 0.5.10 (registry+https://github.com/rust-lang/crates.io-index)",
 "keccak-hash 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "kvdb 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -784,13 +785,22 @@ dependencies = [
 "siphasher 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

+[[package]]
+name = "ethcore-call-contract"
+version = "0.1.0"
+dependencies = [
+ "common-types 0.1.0",
+ "ethereum-types 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parity-bytes 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "ethcore-db"
 version = "0.1.0"
 dependencies = [
 "common-types 0.1.0",
 "ethereum-types 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize 0.4.2 (git+https://github.com/cheme/heapsize.git?branch=ec-macfix)",
 "kvdb 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "parking_lot 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "rlp 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -831,7 +841,7 @@ dependencies = [
 "fastmap 0.1.0",
 "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
 "hashdb 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize 0.4.2 (git+https://github.com/cheme/heapsize.git?branch=ec-macfix)",
 "itertools 0.5.10 (registry+https://github.com/rust-lang/crates.io-index)",
 "keccak-hash 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "keccak-hasher 0.1.1",
@@ -864,7 +874,7 @@ dependencies = [
 "arrayvec 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
 "atty 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
 "env_logger 0.5.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "parking_lot 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "regex 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -879,12 +889,16 @@ dependencies = [
 "common-types 0.1.0",
 "env_logger 0.5.13 (registry+https://github.com/rust-lang/crates.io-index)",
 "error-chain 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethabi 6.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethabi-contract 6.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethabi-derive 6.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "ethash 1.12.0",
+ "ethcore-call-contract 0.1.0",
 "ethereum-types 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "ethkey 0.3.0",
 "fetch 0.1.0",
 "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize 0.4.2 (git+https://github.com/cheme/heapsize.git?branch=ec-macfix)",
 "hyper 0.12.11 (registry+https://github.com/rust-lang/crates.io-index)",
 "keccak-hash 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "linked-hash-map 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -933,6 +947,7 @@ dependencies = [
 "keccak-hash 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
 "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lru-cache 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "mio 0.6.16 (registry+https://github.com/rust-lang/crates.io-index)",
 "parity-bytes 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "parity-crypto 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -962,6 +977,7 @@ dependencies = [
 "ethabi-contract 6.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "ethabi-derive 6.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "ethcore 1.12.0",
+ "ethcore-call-contract 0.1.0",
 "ethcore-io 1.12.0",
 "ethcore-miner 1.12.0",
 "ethereum-types 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -969,7 +985,7 @@ dependencies = [
 "ethkey 0.3.0",
 "fetch 0.1.0",
 "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize 0.4.2 (git+https://github.com/cheme/heapsize.git?branch=ec-macfix)",
 "keccak-hash 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "parity-bytes 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1000,6 +1016,7 @@ dependencies = [
 "ethabi-contract 6.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "ethabi-derive 6.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "ethcore 1.12.0",
+ "ethcore-call-contract 0.1.0",
 "ethcore-sync 1.12.0",
 "ethereum-types 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "ethkey 0.3.0",
@@ -1008,7 +1025,7 @@ dependencies = [
 "keccak-hash 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "kvdb 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "kvdb-rocksdb 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "parity-bytes 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "parity-crypto 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1079,7 +1096,7 @@ dependencies = [
 "ethstore 0.2.1",
 "fastmap 0.1.0",
 "hashdb 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize 0.4.2 (git+https://github.com/cheme/heapsize.git?branch=ec-macfix)",
 "keccak-hash 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "keccak-hasher 0.1.1",
 "kvdb 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1135,7 +1152,7 @@ dependencies = [
 "edit-distance 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
 "eth-secp256k1 0.5.7 (git+https://github.com/paritytech/rust-secp256k1)",
 "ethereum-types 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "memzero 0.1.0",
 "parity-crypto 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1212,9 +1229,9 @@ dependencies = [
 "bit-set 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "criterion 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "ethereum-types 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize 0.4.2 (git+https://github.com/cheme/heapsize.git?branch=ec-macfix)",
 "keccak-hash 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "memory-cache 0.1.0",
 "parity-bytes 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1332,7 +1349,7 @@ name = "fixed-hash"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize 0.4.2 (git+https://github.com/cheme/heapsize.git?branch=ec-macfix)",
 "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
 "rand 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
 "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1353,12 +1370,17 @@ name = "fs-swap"
 version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
 "libloading 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

+[[package]]
+name = "fs_extra"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "fuchsia-zircon"
 version = "0.3.3"
@@ -1455,7 +1477,7 @@ name = "handlebars"
 version = "0.32.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "pest 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
 "pest_derive 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1489,8 +1511,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "heapsize"
 version = "0.4.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
+source = "git+https://github.com/cheme/heapsize.git?branch=ec-macfix#421df390a930cb523a09e5528e6fe57b534b3b26"
 dependencies = [
+ "jemallocator 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
 "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

@@ -1705,6 +1728,25 @@ name = "itoa"
 version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"

+[[package]]
+name = "jemalloc-sys"
+version = "0.1.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
+ "fs_extra 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "jemallocator"
+version = "0.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "jemalloc-sys 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "jni"
 version = "0.10.2"
@@ -1731,7 +1773,7 @@ dependencies = [
 "ethereum-types 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "fastmap 0.1.0",
 "hashdb 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize 0.4.2 (git+https://github.com/cheme/heapsize.git?branch=ec-macfix)",
 "keccak-hash 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "keccak-hasher 0.1.1",
 "kvdb 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1809,7 +1851,7 @@ dependencies = [
 "bytes 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
 "globset 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "jsonrpc-core 9.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-2.2)",
- "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.2.0 (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)",
 "tokio 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1912,11 +1954,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"

 [[package]]
 name = "lazy_static"
-version = "1.1.0"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
-]

 [[package]]
 name = "lazycell"
@@ -2061,7 +2100,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 name = "memory-cache"
 version = "0.1.0"
 dependencies = [
- "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize 0.4.2 (git+https://github.com/cheme/heapsize.git?branch=ec-macfix)",
 "lru-cache 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

@@ -2076,7 +2115,7 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "hashdb 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize 0.4.2 (git+https://github.com/cheme/heapsize.git?branch=ec-macfix)",
 "plain_hasher 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "rlp 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -2354,7 +2393,7 @@ dependencies = [
 "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
 "jni 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "panic_hook 0.1.0",
- "parity-ethereum 2.3.0",
+ "parity-ethereum 2.3.3",
 "tokio 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
 "tokio-current-thread 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -2365,14 +2404,14 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "quick-error 1.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "ring 0.13.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ring 0.13.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "rust-crypto 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 "tiny-keccak 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
 name = "parity-ethereum"
-version = "2.3.0"
+version = "2.3.3"
 dependencies = [
 "ansi_term 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "atty 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2386,6 +2425,7 @@ dependencies = [
 "docopt 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "ethcore 1.12.0",
 "ethcore-blockchain 0.1.0",
+ "ethcore-call-contract 0.1.0",
 "ethcore-db 0.1.0",
 "ethcore-io 1.12.0",
 "ethcore-light 1.12.0",
@@ -2422,7 +2462,7 @@ dependencies = [
 "parity-rpc 1.12.0",
 "parity-runtime 0.1.0",
 "parity-updater 1.12.0",
- "parity-version 2.3.0",
+ "parity-version 2.3.3",
 "parity-whisper 0.1.0",
 "parking_lot 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "pretty_assertions 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2574,7 +2614,7 @@ dependencies = [
 "parity-crypto 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "parity-runtime 0.1.0",
 "parity-updater 1.12.0",
- "parity-version 2.3.0",
+ "parity-version 2.3.3",
 "parking_lot 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "patricia-trie 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "pretty_assertions 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2666,13 +2706,13 @@ dependencies = [
 "ethcore-sync 1.12.0",
 "ethereum-types 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "keccak-hash 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "matches 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
 "parity-bytes 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "parity-hash-fetch 1.12.0",
 "parity-path 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "parity-version 2.3.0",
+ "parity-version 2.3.3",
 "parking_lot 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "rand 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
 "semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2682,7 +2722,7 @@ dependencies = [

 [[package]]
 name = "parity-version"
-version = "2.3.0"
+version = "2.3.3"
 dependencies = [
 "parity-bytes 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "rlp 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2734,7 +2774,7 @@ version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "itertools 0.5.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "rand 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

@@ -3131,7 +3171,7 @@ version = "1.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "crossbeam-deque 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
 "num_cpus 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -3218,11 +3258,11 @@ dependencies = [

 [[package]]
 name = "ring"
-version = "0.13.2"
+version = "0.13.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
 "cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)",
 "untrusted 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -3253,7 +3293,7 @@ name = "rlp_compress"
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 dependencies = [
 "elastic-array 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "rlp 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

@@ -3330,7 +3370,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
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 "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "ring 0.13.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ring 0.13.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "sct 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "untrusted 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "webpki 0.18.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3369,7 +3409,7 @@ name = "sct"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "ring 0.13.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ring 0.13.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "untrusted 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

@@ -3652,7 +3692,7 @@ name = "thread_local"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

 [[package]]
@@ -3794,7 +3834,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
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 "futures 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "mio 0.6.16 (registry+https://github.com/rust-lang/crates.io-index)",
 "num_cpus 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -4014,7 +4054,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
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 "crunchy 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "heapsize 0.4.2 (git+https://github.com/cheme/heapsize.git?branch=ec-macfix)",
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@@ -4109,7 +4149,7 @@ version = "0.8.0"
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 dependencies = [
 "idna 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "regex 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "serde 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)",
 "serde_derive 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -4123,7 +4163,7 @@ version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
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- "lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 "proc-macro2 0.4.20 (registry+https://github.com/rust-lang/crates.io-index)",
 "quote 0.6.8 (registry+https://github.com/rust-lang/crates.io-index)",
 "regex 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -4231,7 +4271,7 @@ name = "webpki"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "ring 0.13.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ring 0.13.5 (registry+https://github.com/rust-lang/crates.io-index)",
 "untrusted 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]

@@ -4434,6 +4474,7 @@ dependencies = [
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 "checksum fnv 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)" = "2fad85553e09a6f881f739c29f0b00b0f01357c743266d478b68951ce23285f3"
 "checksum fs-swap 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)" = "921d332c89b3b61a826de38c61ee5b6e02c56806cade1b0e5d81bd71f57a71bb"
+"checksum fs_extra 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5f2a4a2034423744d2cc7ca2068453168dcdb82c438419e639a26bd87839c674"
 "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 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)" = "49e7653e374fe0d0c12de4250f0bdb60680b8c80eed558c5c7538eec9c89e21b"
@@ -4447,7 +4488,7 @@ dependencies = [
 "checksum hamming 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "65043da274378d68241eb9a8f8f8aa54e349136f7b8e12f63e3ef44043cc30e1"
 "checksum handlebars 0.32.4 (registry+https://github.com/rust-lang/crates.io-index)" = "d89ec99d1594f285d4590fc32bac5f75cdab383f1123d504d27862c644a807dd"
 "checksum hashdb 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d91261ee336dd046ac7df28306cb297b7a7228bd1ae25e9a57f4ed5e0ab628c7"
-"checksum heapsize 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1679e6ea370dee694f91f1dc469bf94cf8f52051d147aec3e1f9497c6fc22461"
+"checksum heapsize 0.4.2 (git+https://github.com/cheme/heapsize.git?branch=ec-macfix)" = "<none>"
 "checksum heck 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ea04fa3ead4e05e51a7c806fc07271fdbde4e246a6c6d1efd52e72230b771b82"
 "checksum hex 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d6a22814455d41612f41161581c2883c0c6a1c41852729b17d5ed88f01e153aa"
 "checksum hidapi 0.3.1 (git+https://github.com/paritytech/hidapi-rs)" = "<none>"
@@ -4470,6 +4511,8 @@ dependencies = [
 "checksum itertools 0.7.8 (registry+https://github.com/rust-lang/crates.io-index)" = "f58856976b776fedd95533137617a02fb25719f40e7d9b01c7043cd65474f450"
 "checksum itertools-num 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "83ca7b70b838f2e34bc6c2f367a1ed1cfe34fb82464adecadd31cdcc7da882fc"
 "checksum itoa 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "1306f3464951f30e30d12373d31c79fbd52d236e5e896fd92f96ec7babbbe60b"
+"checksum jemalloc-sys 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)" = "bfc62c8e50e381768ce8ee0428ee53741929f7ebd73e4d83f669bcf7693e00ae"
+"checksum jemallocator 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "9f0cd42ac65f758063fea55126b0148b1ce0a6354ff78e07a4d6806bc65c4ab3"
 "checksum jni 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1ecfa3b81afc64d9a6539c4eece96ac9a93c551c713a313800dade8e33d7b5c1"
 "checksum jni-sys 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8eaf4bc02d17cbdd7ff4c7438cafcdf7fb9a4613313ad11b4f8fefe7d3fa0130"
 "checksum jsonrpc-core 9.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-2.2)" = "<none>"
@@ -4486,7 +4529,7 @@ dependencies = [
 "checksum kvdb-memorydb 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "45bcdf5eb083602cff61a6f8438dce2a7900d714e893fc48781c39fb119d37aa"
 "checksum kvdb-rocksdb 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "06cf755dc587839ba34d3cbe3f12b6ad55850fbcdfe67336157a021a1a5c43ae"
 "checksum language-tags 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "a91d884b6667cd606bb5a69aa0c99ba811a115fc68915e7056ec08a46e93199a"
-"checksum lazy_static 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ca488b89a5657b0a2ecd45b95609b3e848cf1755da332a0da46e2b2b1cb371a7"
+"checksum lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a374c89b9db55895453a74c1e38861d9deec0b01b405a82516e9d5de4820dea1"
 "checksum lazycell 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ddba4c30a78328befecec92fc94970e53b3ae385827d28620f0f5bb2493081e0"
 "checksum libc 0.2.43 (registry+https://github.com/rust-lang/crates.io-index)" = "76e3a3ef172f1a0b9a9ff0dd1491ae5e6c948b94479a3021819ba7d860c8645d"
 "checksum libloading 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9c3ad660d7cb8c5822cd83d10897b0f1f1526792737a179e73896152f85b88c2"
@@ -4589,7 +4632,7 @@ dependencies = [
 "checksum regex-syntax 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "747ba3b235651f6e2f67dfa8bcdcd073ddb7c243cb21c442fc12395dfcac212d"
 "checksum relay 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "1576e382688d7e9deecea24417e350d3062d97e32e45d70b1cde65994ff1489a"
 "checksum remove_dir_all 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3488ba1b9a2084d38645c4c08276a1752dcbf2c7130d74f1569681ad5d2799c5"
-"checksum ring 0.13.2 (registry+https://github.com/rust-lang/crates.io-index)" = "dbe642b9dd1ba0038d78c4a3999d1ee56178b4d415c1e1fbaba83b06dce012f0"
+"checksum ring 0.13.5 (registry+https://github.com/rust-lang/crates.io-index)" = "2c4db68a2e35f3497146b7e4563df7d4773a2433230c5e4b448328e31740458a"
 "checksum rlp 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)" = "524c5ad554859785dfc8469df3ed5e0b5784d4d335877ed47c8d90fc0eb238fe"
 "checksum rlp 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "16d1effe9845d54f90e7be8420ee49e5c94623140b97ee4bc6fb5bfddb745720"
 "checksum rpassword 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b273c91bd242ca03ad6d71c143b6f17a48790e61f21a6c78568fa2b6774a24a4"
--- 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 = "2.3.0"
+version = "2.3.3"
 license = "GPL-3.0"
 authors = ["Parity Technologies <admin@parity.io>"]

@@ -34,6 +34,7 @@ ethcore = { path = "ethcore", features = ["parity"] }
 parity-bytes = "0.1"
 common-types = { path = "ethcore/types" }
 ethcore-blockchain = { path = "ethcore/blockchain" }
+ethcore-call-contract = { path = "ethcore/call-contract"}
 ethcore-db = { path = "ethcore/db" }
 ethcore-io = { path = "util/io" }
 ethcore-light = { path = "ethcore/light" }
@@ -79,12 +80,12 @@ ipnetwork = "0.12.6"
 tempdir = "0.3"
 fake-fetch = { path = "util/fake-fetch" }

-[target.'cfg(windows)'.dependencies]
-winapi = { version = "0.3.4", features = ["winsock2", "winuser", "shellapi"] }
-
 [target.'cfg(not(windows))'.dependencies]
 daemonize = "0.3"

+[target.'cfg(windows)'.dependencies]
+winapi = { version = "0.3.4", features = ["winsock2", "winuser", "shellapi"] }
+
 [features]
 miner-debug = ["ethcore/miner-debug"]
 json-tests = ["ethcore/json-tests"]
@@ -132,4 +133,11 @@ members = [
 	"evmbin",
 	"parity-clib",
 	"whisper/cli",
+	"util/triehash-ethereum",
+	"util/keccak-hasher",
+	"util/patricia-trie-ethereum",
+	"util/fastmap"
 ]
+
+[patch.crates-io]
+heapsize = { git = "https://github.com/cheme/heapsize.git", branch = "ec-macfix" }
--- a/ethcore/Cargo.toml
+++ b/ethcore/Cargo.toml
@@ -21,6 +21,7 @@ ethabi-derive = "6.0"
 ethash = { path = "../ethash" }
 ethcore-blockchain = { path = "./blockchain" }
 ethcore-bloom-journal = { path = "../util/bloom" }
+ethcore-call-contract = { path = "./call-contract" }
 ethcore-db = { path = "./db" }
 ethcore-io = { path = "../util/io" }
 ethcore-miner = { path = "../miner" }
--- a/ethcore/call-contract/Cargo.toml
+++ b/ethcore/call-contract/Cargo.toml
@@ -0,0 +1,11 @@
+[package]
+name = "ethcore-call-contract"
+version = "0.1.0"
+license = "GPL-3.0"
+authors = ["Parity Technologies <admin@parity.io>"]
+edition = "2018"
+
+[dependencies]
+types = { path = "../types", package = "common-types" }
+ethereum-types = "0.4"
+bytes = { version = "0.1", package = "parity-bytes" }
--- a/ethcore/call-contract/src/call_contract.rs
+++ b/ethcore/call-contract/src/call_contract.rs
@@ -0,0 +1,33 @@
+// Copyright 2015-2019 Parity Technologies (UK) Ltd.
+// This file is part of Parity Ethereum.
+
+// Parity Ethereum 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 Ethereum 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 Ethereum.  If not, see <http://www.gnu.org/licenses/>.
+
+//! Provides CallContract and RegistryInfo traits
+
+use bytes::Bytes;
+use ethereum_types::Address;
+use types::ids::BlockId;
+
+/// Provides `call_contract` method
+pub trait CallContract {
+	/// Like `call`, but with various defaults. Designed to be used for calling contracts.
+	fn call_contract(&self, id: BlockId, address: Address, data: Bytes) -> Result<Bytes, String>;
+}
+
+/// Provides information on a blockchain service and it's registry
+pub trait RegistryInfo {
+	/// Get the address of a particular blockchain service, if available.
+	fn registry_address(&self, name: String, block: BlockId) -> Option<Address>;
+}
--- a/ethcore/call-contract/src/lib.rs
+++ b/ethcore/call-contract/src/lib.rs
@@ -0,0 +1,27 @@
+// Copyright 2015-2019 Parity Technologies (UK) Ltd.
+// This file is part of Parity Ethereum.
+
+// Parity Ethereum 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 Ethereum 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 Ethereum.  If not, see <http://www.gnu.org/licenses/>.
+
+#![warn(missing_docs)]
+
+//! Call Contract module
+//! 
+//! This crate exposes traits required to call contracts at particular block.
+//! All utilities that depend on on-chain data should use those traits to access it.
+
+pub mod call_contract;
+
+// Re-export
+pub use self::call_contract::*;
--- a/ethcore/evm/src/interpreter/mod.rs
+++ b/ethcore/evm/src/interpreter/mod.rs
@@ -571,10 +571,10 @@ impl<Cost: CostType> Interpreter<Cost> {
 				let out_size = self.stack.pop_back();

 				// Add stipend (only CALL|CALLCODE when value > 0)
-				let call_gas = call_gas + value.map_or_else(|| Cost::from(0), |val| match val.is_zero() {
+				let call_gas = call_gas.overflow_add(value.map_or_else(|| Cost::from(0), |val| match val.is_zero() {
 					false => Cost::from(ext.schedule().call_stipend),
 					true => Cost::from(0),
-				});
+				})).0;

 				// Get sender & receive addresses, check if we have balance
 				let (sender_address, receive_address, has_balance, call_type) = match instruction {
--- a/ethcore/light/src/transaction_queue.rs
+++ b/ethcore/light/src/transaction_queue.rs
@@ -95,7 +95,7 @@ impl AccountTransactions {
 	}

 	fn next_nonce(&self) -> U256 {
-		self.current.last().map(|last| last.nonce + 1)
+		self.current.last().map(|last| last.nonce.saturating_add(1.into()))
 			.unwrap_or_else(|| *self.cur_nonce.value())
 	}

@@ -107,7 +107,7 @@ impl AccountTransactions {
 		while let Some(tx) = self.future.remove(&next_nonce) {
 			promoted.push(tx.hash);
 			self.current.push(tx);
-			next_nonce = next_nonce + 1;
+			next_nonce = next_nonce.saturating_add(1.into());
 		}

 		promoted
--- a/ethcore/private-tx/Cargo.toml
+++ b/ethcore/private-tx/Cargo.toml
@@ -12,6 +12,7 @@ ethabi = "6.0"
 ethabi-contract = "6.0"
 ethabi-derive = "6.0"
 ethcore = { path = ".." }
+ethcore-call-contract = { path = "../call-contract" }
 ethcore-io = { path = "../../util/io" }
 ethcore-miner = { path = "../../miner" }
 ethereum-types = "0.4"
--- a/ethcore/private-tx/src/lib.rs
+++ b/ethcore/private-tx/src/lib.rs
@@ -28,6 +28,7 @@ mod error;
 extern crate common_types as types;
 extern crate ethabi;
 extern crate ethcore;
+extern crate ethcore_call_contract as call_contract;
 extern crate ethcore_io as io;
 extern crate ethcore_miner;
 extern crate ethereum_types;
@@ -82,11 +83,12 @@ use types::transaction::{SignedTransaction, Transaction, Action, UnverifiedTrans
 use ethcore::{contract_address as ethcore_contract_address};
 use ethcore::client::{
 	Client, ChainNotify, NewBlocks, ChainMessageType, ClientIoMessage, BlockId,
-	CallContract, Call, BlockInfo
+	Call, BlockInfo
 };
 use ethcore::account_provider::AccountProvider;
 use ethcore::miner::{self, Miner, MinerService, pool_client::NonceCache};
 use ethcore::trace::{Tracer, VMTracer};
+use call_contract::CallContract;
 use rustc_hex::FromHex;
 use ethkey::Password;
 use ethabi::FunctionOutputDecoder;
--- a/ethcore/res/ethereum/foundation.json
+++ b/ethcore/res/ethereum/foundation.json
@@ -10,7 +10,7 @@
 				"blockReward": {
 					"0x0": "0x4563918244f40000",
 					"0x42ae50": "0x29a2241af62c0000",
-					"0x6c0840": "0x1bc16d674ec80000"
+					"0x6f1580": "0x1bc16d674ec80000"
 				},
 				"homesteadTransition": "0x118c30",
 				"daoHardforkTransition": "0x1d4c00",
@@ -136,7 +136,7 @@
 				"eip100bTransition": "0x42ae50",
 				"difficultyBombDelays": {
 					"0x42ae50": "0x2dc6c0",
-					"0x6c0840": "0x1e8480"
+					"0x6f1580": "0x1e8480"
 				}
 			}
 		}
@@ -161,10 +161,9 @@
 		"eip211Transition": "0x42ae50",
 		"eip214Transition": "0x42ae50",
 		"eip658Transition": "0x42ae50",
-		"eip145Transition": "0x6c0840",
-		"eip1014Transition": "0x6c0840",
-		"eip1052Transition": "0x6c0840",
-		"eip1283Transition": "0x6c0840"
+		"eip145Transition": "0x6f1580",
+		"eip1014Transition": "0x6f1580",
+		"eip1052Transition": "0x6f1580"
 	},
 	"genesis": {
 		"seal": {
--- a/ethcore/res/ethereum/kovan.json
+++ b/ethcore/res/ethereum/kovan.json
@@ -49,6 +49,7 @@
 		"eip1014Transition": "0x8c6180",
 		"eip1052Transition": "0x8c6180",
 		"eip1283Transition": "0x8c6180",
+		"eip1283DisableTransition": "0x9c7b61",
 		"kip4Transition": "0x8c6180",
 		"kip6Transition": "0x8c6180"
 	},
--- a/ethcore/res/ethereum/poacore.json
+++ b/ethcore/res/ethereum/poacore.json
@@ -34,11 +34,7 @@
 		"eip140Transition": "0x0",
 		"eip211Transition": "0x0",
 		"eip214Transition": "0x0",
-		"eip658Transition": "0x0",
-		"eip145Transition": 6843780,
-		"eip1014Transition": 6843780,
-		"eip1052Transition": 6843780,
-		"eip1283Transition": 6843780
+		"eip658Transition": "0x0"
 	},
 	"genesis": {
 		"seal": {
--- a/ethcore/res/ethereum/poasokol.json
+++ b/ethcore/res/ethereum/poasokol.json
@@ -41,7 +41,8 @@
 		"eip145Transition": 6464300,
 		"eip1014Transition": 6464300,
 		"eip1052Transition": 6464300,
-		"eip1283Transition": 6464300
+		"eip1283Transition": 6464300,
+		"eip1283DisableTransition": 7026400
 	},
 	"genesis": {
 		"seal": {
--- a/ethcore/res/ethereum/ropsten.json
+++ b/ethcore/res/ethereum/ropsten.json
@@ -44,7 +44,8 @@
 		"eip145Transition": "0x408b70",
 		"eip1014Transition": "0x408b70",
 		"eip1052Transition": "0x408b70",
-		"eip1283Transition": "0x408b70"
+		"eip1283Transition": "0x408b70",
+		"eip1283DisableTransition": "0x4b5e82"
 	},
 	"genesis": {
 		"seal": {
--- a/ethcore/res/ethereum/st_peters_test.json
+++ b/ethcore/res/ethereum/st_peters_test.json
@@ -0,0 +1,65 @@
+{
+	"name": "St. Peter's (test)",
+	"engine": {
+		"Ethash": {
+			"params": {
+				"minimumDifficulty": "0x020000",
+				"difficultyBoundDivisor": "0x0800",
+				"durationLimit": "0x0d",
+				"blockReward": "0x1BC16D674EC80000",
+				"homesteadTransition": "0x0",
+				"eip100bTransition": "0x0",
+				"difficultyBombDelays": {
+					"0": 5000000
+				}
+			}
+		}
+	},
+	"params": {
+		"gasLimitBoundDivisor": "0x0400",
+		"registrar" : "0xc6d9d2cd449a754c494264e1809c50e34d64562b",
+		"accountStartNonce": "0x00",
+		"maximumExtraDataSize": "0x20",
+		"minGasLimit": "0x1388",
+		"networkID" : "0x1",
+		"maxCodeSize": 24576,
+		"maxCodeSizeTransition": "0x0",
+		"eip150Transition": "0x0",
+		"eip160Transition": "0x0",
+		"eip161abcTransition": "0x0",
+		"eip161dTransition": "0x0",
+		"eip140Transition": "0x0",
+		"eip211Transition": "0x0",
+		"eip214Transition": "0x0",
+		"eip155Transition": "0x0",
+		"eip658Transition": "0x0",
+		"eip145Transition": "0x0",
+		"eip1014Transition": "0x0",
+		"eip1052Transition": "0x0",
+		"eip1283DisableTransition": "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": 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": 40000, "word": 0 } } } },
+		"0000000000000000000000000000000000000008": { "builtin": { "name": "alt_bn128_pairing", "activate_at": "0x00", "pricing": { "alt_bn128_pairing": { "base": 100000, "pair": 80000 } } } }
+	}
+}
--- 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
@@ -1,42 +1,4 @@
-{ "block":
-	[
-		{
-			"reference": "None",
-			"comment": "This failing test is deemed skippable. Could not happen on a mainnet.",
-			"failing": "GeneralStateTest_stCreate2",
-			"subtests": ["RevertInCreateInInitCreate2_d0g0v0_Constantinople"]
-		},
-		{
-			"reference": "None",
-			"comment": "This failing test is deemed skippable. Could not happen on a mainnet.",
-			"failing": "GeneralStateTest_stRevertTest",
-			"subtests": ["RevertInCreateInInit_d0g0v0_Constantinople"]
-		}
-	],
-	"state":
-	[
-		{
-			"reference": "None",
-			"comment": "This failing test is deemed skippable. Could not happen on a mainnet.",
-			"failing": "stCreate2Test",
-			"subtests": {
-				"RevertInCreateInInitCreate2": {
-					"subnumbers": ["1"],
-					"chain": "Constantinople (test)"
-				}
-			}
-		},
-		{
-			"reference": "None",
-			"comment": "This failing test is deemed skippable. Could not happen on a mainnet.",
-			"failing": "stRevertTest",
-			"subtests": {
-				"RevertInCreateInInit": {
-					"subnumbers": ["1"],
-					"chain": "Constantinople (test)"
-				}
-			}
-		}
-		
-	]
+{
+	"block": [],
+	"state": []
 }
--- a/ethcore/src/client/client.rs
+++ b/ethcore/src/client/client.rs
@@ -23,6 +23,7 @@ use std::time::{Instant, Duration};

 use blockchain::{BlockReceipts, BlockChain, BlockChainDB, BlockProvider, TreeRoute, ImportRoute, TransactionAddress, ExtrasInsert};
 use bytes::Bytes;
+use call_contract::{CallContract, RegistryInfo};
 use ethcore_miner::pool::VerifiedTransaction;
 use ethereum_types::{H256, Address, U256};
 use evm::Schedule;
@@ -46,8 +47,8 @@ use vm::{EnvInfo, LastHashes};
 use block::{IsBlock, LockedBlock, Drain, ClosedBlock, OpenBlock, enact_verified, SealedBlock};
 use client::ancient_import::AncientVerifier;
 use client::{
-	Nonce, Balance, ChainInfo, BlockInfo, CallContract, TransactionInfo,
-	RegistryInfo, ReopenBlock, PrepareOpenBlock, ScheduleInfo, ImportSealedBlock,
+	Nonce, Balance, ChainInfo, BlockInfo, TransactionInfo,
+	ReopenBlock, PrepareOpenBlock, ScheduleInfo, ImportSealedBlock,
 	BroadcastProposalBlock, ImportBlock, StateOrBlock, StateInfo, StateClient, Call,
 	AccountData, BlockChain as BlockChainTrait, BlockProducer, SealedBlockImporter,
 	ClientIoMessage,
@@ -59,7 +60,8 @@ use client::{
 	IoClient, BadBlocks,
 };
 use client::bad_blocks;
-use engines::{EthEngine, EpochTransition, ForkChoice};
+use engines::{EthEngine, EpochTransition, ForkChoice, EngineError};
+use engines::epoch::PendingTransition;
 use error::{
 	ImportErrorKind, ExecutionError, CallError, BlockError,
 	QueueError, QueueErrorKind, Error as EthcoreError, EthcoreResult, ErrorKind as EthcoreErrorKind
@@ -291,8 +293,8 @@ impl Importer {
 					continue;
 				}

-				match self.check_and_lock_block(block, client) {
-					Ok(closed_block) => {
+				match self.check_and_lock_block(&bytes, block, client) {
+					Ok((closed_block, pending)) => {
 						if self.engine.is_proposal(&header) {
 							self.block_queue.mark_as_good(&[hash]);
 							proposed_blocks.push(bytes);
@@ -301,7 +303,7 @@ impl Importer {

 							let transactions_len = closed_block.transactions().len();

-							let route = self.commit_block(closed_block, &header, encoded::Block::new(bytes), client);
+							let route = self.commit_block(closed_block, &header, encoded::Block::new(bytes), pending, client);
 							import_results.push(route);

 							client.report.write().accrue_block(&header, transactions_len);
@@ -353,7 +355,7 @@ impl Importer {
 		imported
 	}

-	fn check_and_lock_block(&self, block: PreverifiedBlock, client: &Client) -> EthcoreResult<LockedBlock> {
+	fn check_and_lock_block(&self, bytes: &[u8], block: PreverifiedBlock, client: &Client) -> EthcoreResult<(LockedBlock, Option<PendingTransition>)> {
 		let engine = &*self.engine;
 		let header = block.header.clone();

@@ -437,7 +439,15 @@ impl Importer {
 			bail!(e);
 		}

-		Ok(locked_block)
+		let pending = self.check_epoch_end_signal(
+			&header,
+			bytes,
+			locked_block.receipts(),
+			locked_block.state().db(),
+			client
+		)?;
+
+		Ok((locked_block, pending))
 	}

 	/// Import a block with transaction receipts.
@@ -469,7 +479,8 @@ impl Importer {
 	// it is for reconstructing the state transition.
 	//
 	// The header passed is from the original block data and is sealed.
-	fn commit_block<B>(&self, block: B, header: &Header, block_data: encoded::Block, client: &Client) -> ImportRoute where B: Drain {
+	// TODO: should return an error if ImportRoute is none, issue #9910
+	fn commit_block<B>(&self, block: B, header: &Header, block_data: encoded::Block, pending: Option<PendingTransition>, client: &Client) -> ImportRoute where B: Drain {
 		let hash = &header.hash();
 		let number = header.number();
 		let parent = header.parent_hash();
@@ -524,15 +535,9 @@ impl Importer {

 		// check epoch end signal, potentially generating a proof on the current
 		// state.
-		self.check_epoch_end_signal(
-			&header,
-			block_data.raw(),
-			&receipts,
-			&state,
-			&chain,
-			&mut batch,
-			client
-		);
+		if let Some(pending) = pending {
+			chain.insert_pending_transition(&mut batch, header.hash(), pending);
+		}

 		state.journal_under(&mut batch, number, hash).expect("DB commit failed");

@@ -587,10 +592,8 @@ impl Importer {
 		block_bytes: &[u8],
 		receipts: &[Receipt],
 		state_db: &StateDB,
-		chain: &BlockChain,
-		batch: &mut DBTransaction,
 		client: &Client,
-	) {
+	) -> EthcoreResult<Option<PendingTransition>> {
 		use engines::EpochChange;

 		let hash = header.hash();
@@ -601,7 +604,6 @@ impl Importer {

 		match self.engine.signals_epoch_end(header, auxiliary) {
 			EpochChange::Yes(proof) => {
-				use engines::epoch::PendingTransition;
 				use engines::Proof;

 				let proof = match proof {
@@ -638,11 +640,9 @@ impl Importer {
 								.transact(&transaction, options);

 							let res = match res {
-								Err(ExecutionError::Internal(e)) =>
-									Err(format!("Internal error: {}", e)),
 								Err(e) => {
 									trace!(target: "client", "Proved call failed: {}", e);
-									Ok((Vec::new(), state.drop().1.extract_proof()))
+									Err(e.to_string())
 								}
 								Ok(res) => Ok((res.output, state.drop().1.extract_proof())),
 							};
@@ -655,7 +655,7 @@ impl Importer {
 							Err(e) => {
 								warn!(target: "client", "Failed to generate transition proof for block {}: {}", hash, e);
 								warn!(target: "client", "Snapshots produced by this client may be incomplete");
-								Vec::new()
+								return Err(EngineError::FailedSystemCall(e).into())
 							}
 						}
 					}
@@ -663,13 +663,13 @@ impl Importer {

 				debug!(target: "client", "Block {} signals epoch end.", hash);

-				let pending = PendingTransition { proof: proof };
-				chain.insert_pending_transition(batch, hash, pending);
+				Ok(Some(PendingTransition { proof: proof }))
 			},
-			EpochChange::No => {},
+			EpochChange::No => Ok(None),
 			EpochChange::Unsure(_) => {
 				warn!(target: "client", "Detected invalid engine implementation.");
 				warn!(target: "client", "Engine claims to require more block data, but everything provided.");
+				Err(EngineError::InvalidEngine.into())
 			}
 		}
 	}
@@ -2328,7 +2328,20 @@ impl ImportSealedBlock for Client {

 			let block_data = block.rlp_bytes();

-			let route = self.importer.commit_block(block, &header, encoded::Block::new(block_data), self);
+			let pending = self.importer.check_epoch_end_signal(
+				&header,
+				&block_data,
+				block.receipts(),
+				block.state().db(),
+				self
+			)?;
+			let route = self.importer.commit_block(
+				block,
+				&header,
+				encoded::Block::new(block_data),
+				pending,
+				self
+			);
 			trace!(target: "client", "Imported sealed block #{} ({})", header.number(), hash);
 			self.state_db.write().sync_cache(&route.enacted, &route.retracted, false);
 			route
--- a/ethcore/src/client/evm_test_client.rs
+++ b/ethcore/src/client/evm_test_client.rs
@@ -93,6 +93,7 @@ impl<'a> EvmTestClient<'a> {
 			ForkSpec::EIP158 => Some(ethereum::new_eip161_test()),
 			ForkSpec::Byzantium => Some(ethereum::new_byzantium_test()),
 			ForkSpec::Constantinople => Some(ethereum::new_constantinople_test()),
+			ForkSpec::ConstantinopleFix => Some(ethereum::new_constantinople_fix_test()),
 			ForkSpec::EIP158ToByzantiumAt5 => Some(ethereum::new_transition_test()),
 			ForkSpec::FrontierToHomesteadAt5 | ForkSpec::HomesteadToDaoAt5 | ForkSpec::HomesteadToEIP150At5 => None,
 		}
--- a/ethcore/src/client/mod.rs
+++ b/ethcore/src/client/mod.rs
@@ -36,7 +36,7 @@ pub use self::io_message::ClientIoMessage;
 pub use self::test_client::{TestBlockChainClient, EachBlockWith};
 pub use self::chain_notify::{ChainNotify, NewBlocks, ChainRoute, ChainRouteType, ChainMessageType};
 pub use self::traits::{
-    Nonce, Balance, ChainInfo, BlockInfo, ReopenBlock, PrepareOpenBlock, CallContract, TransactionInfo, RegistryInfo, ScheduleInfo, ImportSealedBlock, BroadcastProposalBlock, ImportBlock,
+    Nonce, Balance, ChainInfo, BlockInfo, ReopenBlock, PrepareOpenBlock, TransactionInfo, ScheduleInfo, ImportSealedBlock, BroadcastProposalBlock, ImportBlock,
    StateOrBlock, StateClient, Call, EngineInfo, AccountData, BlockChain, BlockProducer, SealedBlockImporter, BadBlocks,
 };
 pub use state::StateInfo;
--- a/ethcore/src/client/test_client.rs
+++ b/ethcore/src/client/test_client.rs
@@ -49,8 +49,9 @@ use types::views::BlockView;
 use vm::Schedule;

 use block::{OpenBlock, SealedBlock, ClosedBlock};
+use call_contract::{CallContract, RegistryInfo};
 use client::{
-	Nonce, Balance, ChainInfo, BlockInfo, ReopenBlock, CallContract, TransactionInfo, RegistryInfo,
+	Nonce, Balance, ChainInfo, BlockInfo, ReopenBlock, TransactionInfo,
 	PrepareOpenBlock, BlockChainClient, BlockChainInfo, BlockStatus, BlockId, Mode,
 	TransactionId, UncleId, TraceId, TraceFilter, LastHashes, CallAnalytics,
 	ProvingBlockChainClient, ScheduleInfo, ImportSealedBlock, BroadcastProposalBlock, ImportBlock, StateOrBlock,
--- a/ethcore/src/client/traits.rs
+++ b/ethcore/src/client/traits.rs
@@ -19,6 +19,7 @@ use std::sync::Arc;

 use blockchain::{BlockReceipts, TreeRoute};
 use bytes::Bytes;
+use call_contract::{CallContract, RegistryInfo};
 use ethcore_miner::pool::VerifiedTransaction;
 use ethereum_types::{H256, U256, Address};
 use evm::Schedule;
@@ -157,12 +158,6 @@ pub trait StateClient {
 /// Provides various blockchain information, like block header, chain state etc.
 pub trait BlockChain: ChainInfo + BlockInfo + TransactionInfo {}

-/// Provides information on a blockchain service and it's registry
-pub trait RegistryInfo {
-	/// Get the address of a particular blockchain service, if available.
-	fn registry_address(&self, name: String, block: BlockId) -> Option<Address>;
-}
-
 // FIXME Why these methods belong to BlockChainClient and not MiningBlockChainClient?
 /// Provides methods to import block into blockchain
 pub trait ImportBlock {
@@ -170,12 +165,6 @@ pub trait ImportBlock {
 	fn import_block(&self, block: Unverified) -> EthcoreResult<H256>;
 }

-/// Provides `call_contract` method
-pub trait CallContract {
-	/// Like `call`, but with various defaults. Designed to be used for calling contracts.
-	fn call_contract(&self, id: BlockId, address: Address, data: Bytes) -> Result<Bytes, String>;
-}
-
 /// Provides `call` and `call_many` methods
 pub trait Call {
 	/// Type representing chain state
--- a/ethcore/src/engines/mod.rs
+++ b/ethcore/src/engines/mod.rs
@@ -81,6 +81,8 @@ pub enum EngineError {
 	MalformedMessage(String),
 	/// Requires client ref, but none registered.
 	RequiresClient,
+	/// Invalid engine specification or implementation.
+	InvalidEngine,
 }

 impl fmt::Display for EngineError {
@@ -96,6 +98,7 @@ impl fmt::Display for EngineError {
 			FailedSystemCall(ref msg) => format!("Failed to make system call: {}", msg),
 			MalformedMessage(ref msg) => format!("Received malformed consensus message: {}", msg),
 			RequiresClient => format!("Call requires client but none registered"),
+			InvalidEngine => format!("Invalid engine specification or implementation"),
 		};

 		f.write_fmt(format_args!("Engine error ({})", msg))
--- a/ethcore/src/engines/validator_set/contract.rs
+++ b/ethcore/src/engines/validator_set/contract.rs
@@ -145,7 +145,8 @@ mod tests {
 	use miner::MinerService;
 	use types::ids::BlockId;
 	use test_helpers::generate_dummy_client_with_spec_and_accounts;
-	use client::{BlockChainClient, ChainInfo, BlockInfo, CallContract};
+	use call_contract::CallContract;
+	use client::{BlockChainClient, ChainInfo, BlockInfo};
 	use super::super::ValidatorSet;
 	use super::ValidatorContract;

--- a/ethcore/src/error.rs
+++ b/ethcore/src/error.rs
@@ -90,6 +90,8 @@ pub enum BlockError {
 	InvalidNumber(Mismatch<BlockNumber>),
 	/// Block number isn't sensible.
 	RidiculousNumber(OutOfBounds<BlockNumber>),
+	/// Timestamp header overflowed
+	TimestampOverflow,
 	/// Too many transactions from a particular address.
 	TooManyTransactions(Address),
 	/// Parent given is unknown.
@@ -139,6 +141,7 @@ impl fmt::Display for BlockError {
 			UnknownParent(ref hash) => format!("Unknown parent: {}", hash),
 			UnknownUncleParent(ref hash) => format!("Unknown uncle parent: {}", hash),
 			UnknownEpochTransition(ref num) => format!("Unknown transition to epoch number: {}", num),
+			TimestampOverflow => format!("Timestamp overflow"),
 			TooManyTransactions(ref address) => format!("Too many transactions from: {}", address),
 		};

--- a/ethcore/src/ethereum/mod.rs
+++ b/ethcore/src/ethereum/mod.rs
@@ -148,6 +148,9 @@ pub fn new_byzantium_test() -> Spec { load(None, include_bytes!("../../res/ether
 /// Create a new Foundation Constantinople era spec.
 pub fn new_constantinople_test() -> Spec { load(None, include_bytes!("../../res/ethereum/constantinople_test.json")) }

+/// Create a new Foundation St. Peter's (Contantinople Fix) era spec.
+pub fn new_constantinople_fix_test() -> Spec { load(None, include_bytes!("../../res/ethereum/st_peters_test.json")) }
+
 /// Create a new Musicoin-MCIP3-era spec.
 pub fn new_mcip3_test() -> Spec { load(None, include_bytes!("../../res/ethereum/mcip3_test.json")) }

@@ -168,6 +171,9 @@ pub fn new_byzantium_test_machine() -> EthereumMachine { load_machine(include_by
 /// Create a new Foundation Constantinople era spec.
 pub fn new_constantinople_test_machine() -> EthereumMachine { load_machine(include_bytes!("../../res/ethereum/constantinople_test.json")) }

+/// Create a new Foundation St. Peter's (Contantinople Fix) era spec.
+pub fn new_constantinople_fix_test_machine() -> EthereumMachine { load_machine(include_bytes!("../../res/ethereum/st_peters_test.json")) }
+
 /// Create a new Musicoin-MCIP3-era spec.
 pub fn new_mcip3_test_machine() -> EthereumMachine { load_machine(include_bytes!("../../res/ethereum/mcip3_test.json")) }

--- a/ethcore/src/executive.rs
+++ b/ethcore/src/executive.rs
@@ -312,7 +312,7 @@ impl<'a> CallCreateExecutive<'a> {
 		let prev_bal = state.balance(&params.address)?;
 		if let ActionValue::Transfer(val) = params.value {
 			state.sub_balance(&params.sender, &val, &mut substate.to_cleanup_mode(&schedule))?;
-			state.new_contract(&params.address, val + prev_bal, nonce_offset)?;
+			state.new_contract(&params.address, val.saturating_add(prev_bal), nonce_offset)?;
 		} else {
 			state.new_contract(&params.address, prev_bal, nonce_offset)?;
 		}
@@ -1103,9 +1103,13 @@ impl<'a, B: 'a + StateBackend> Executive<'a, B> {
 		let refunded = cmp::min(refunds_bound, (t.gas - gas_left_prerefund) >> 1);
 		let gas_left = gas_left_prerefund + refunded;

-		let gas_used = t.gas - gas_left;
-		let refund_value = gas_left * t.gas_price;
-		let fees_value = gas_used * t.gas_price;
+		let gas_used = t.gas.saturating_sub(gas_left);
+		let (refund_value, overflow_1) = gas_left.overflowing_mul(t.gas_price);
+		let (fees_value, overflow_2) = gas_used.overflowing_mul(t.gas_price);
+		if overflow_1 || overflow_2 {
+			return Err(ExecutionError::TransactionMalformed("U256 Overflow".to_string()));
+		}
+

 		trace!("exec::finalize: t.gas={}, sstore_refunds={}, suicide_refunds={}, refunds_bound={}, gas_left_prerefund={}, refunded={}, gas_left={}, gas_used={}, refund_value={}, fees_value={}\n",
 			t.gas, sstore_refunds, suicide_refunds, refunds_bound, gas_left_prerefund, refunded, gas_left, gas_used, refund_value, fees_value);
@@ -1123,7 +1127,7 @@ impl<'a, B: 'a + StateBackend> Executive<'a, B> {
 		}

 		// perform garbage-collection
-		let min_balance = if schedule.kill_dust != CleanDustMode::Off { Some(U256::from(schedule.tx_gas) * t.gas_price) } else { None };
+		let min_balance = if schedule.kill_dust != CleanDustMode::Off { Some(U256::from(schedule.tx_gas).overflowing_mul(t.gas_price).0) } else { None };
 		self.state.kill_garbage(&substate.touched, schedule.kill_empty, &min_balance, schedule.kill_dust == CleanDustMode::WithCodeAndStorage)?;

 		match result {
--- a/ethcore/src/externalities.rs
+++ b/ethcore/src/externalities.rs
@@ -116,7 +116,12 @@ 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)
+		if self.state.is_base_storage_root_unchanged(&self.origin_info.address)? {
+			self.state.checkpoint_storage_at(0, &self.origin_info.address, key).map(|v| v.unwrap_or(H256::zero())).map_err(Into::into)
+		} else {
+			warn!(target: "externalities", "Detected existing account {:#x} where a forced contract creation happened.", self.origin_info.address);
+			Ok(H256::zero())
+		}
 	}

 	fn storage_at(&self, key: &H256) -> vm::Result<H256> {
--- a/ethcore/src/json_tests/state.rs
+++ b/ethcore/src/json_tests/state.rs
@@ -165,6 +165,7 @@ mod state_tests {
 	declare_test!{GeneralStateTest_stRefundTest, "GeneralStateTests/stRefundTest/"}
 	declare_test!{GeneralStateTest_stReturnDataTest, "GeneralStateTests/stReturnDataTest/"}
 	declare_test!{GeneralStateTest_stRevertTest, "GeneralStateTests/stRevertTest/"}
+	declare_test!{GeneralStateTest_stSStoreTest, "GeneralStateTests/stSStoreTest/"}
 	declare_test!{GeneralStateTest_stShift, "GeneralStateTests/stShift/"}
 	declare_test!{GeneralStateTest_stSolidityTest, "GeneralStateTests/stSolidityTest/"}
 	declare_test!{GeneralStateTest_stSpecialTest, "GeneralStateTests/stSpecialTest/"}
@@ -177,7 +178,6 @@ mod state_tests {
 	declare_test!{GeneralStateTest_stZeroCallsRevert, "GeneralStateTests/stZeroCallsRevert/"}
 	declare_test!{GeneralStateTest_stZeroCallsTest, "GeneralStateTests/stZeroCallsTest/"}
 	declare_test!{GeneralStateTest_stZeroKnowledge, "GeneralStateTests/stZeroKnowledge/"}
-	declare_test!{GeneralStateTest_stSStoreTest, "GeneralStateTests/stSStoreTest/"}

 	// Attempts to send a transaction that requires more than current balance:
 	// Tx:
--- a/ethcore/src/lib.rs
+++ b/ethcore/src/lib.rs
@@ -66,6 +66,7 @@ extern crate ethabi;
 extern crate ethash;
 extern crate ethcore_blockchain as blockchain;
 extern crate ethcore_bloom_journal as bloom_journal;
+extern crate ethcore_call_contract as call_contract;
 extern crate ethcore_db as db;
 extern crate ethcore_io as io;
 extern crate ethcore_miner;
--- a/ethcore/src/machine.rs
+++ b/ethcore/src/machine.rs
@@ -30,7 +30,8 @@ use vm::{EnvInfo, Schedule, CreateContractAddress};

 use block::{ExecutedBlock, IsBlock};
 use builtin::Builtin;
-use client::{BlockInfo, CallContract};
+use call_contract::CallContract;
+use client::BlockInfo;
 use error::Error;
 use executive::Executive;
 use spec::CommonParams;
--- a/ethcore/src/miner/miner.rs
+++ b/ethcore/src/miner/miner.rs
@@ -21,6 +21,7 @@ use std::sync::Arc;

 use ansi_term::Colour;
 use bytes::Bytes;
+use call_contract::CallContract;
 use ethcore_miner::gas_pricer::GasPricer;
 use ethcore_miner::pool::{self, TransactionQueue, VerifiedTransaction, QueueStatus, PrioritizationStrategy};
 #[cfg(feature = "work-notify")]
@@ -48,7 +49,7 @@ use using_queue::{UsingQueue, GetAction};
 use account_provider::{AccountProvider, SignError as AccountError};
 use block::{ClosedBlock, IsBlock, SealedBlock};
 use client::{
-	BlockChain, ChainInfo, CallContract, BlockProducer, SealedBlockImporter, Nonce, TransactionInfo, TransactionId
+	BlockChain, ChainInfo, BlockProducer, SealedBlockImporter, Nonce, TransactionInfo, TransactionId
 };
 use client::{BlockId, ClientIoMessage};
 use engines::{EthEngine, Seal};
--- a/ethcore/src/miner/mod.rs
+++ b/ethcore/src/miner/mod.rs
@@ -20,7 +20,6 @@
 //! Keeps track of transactions and currently sealed pending block.

 mod miner;
-mod service_transaction_checker;

 pub mod pool_client;
 #[cfg(feature = "stratum")]
@@ -43,8 +42,9 @@ use types::header::Header;
 use types::receipt::RichReceipt;

 use block::SealedBlock;
+use call_contract::{CallContract, RegistryInfo};
 use client::{
-	CallContract, RegistryInfo, ScheduleInfo,
+	ScheduleInfo,
 	BlockChain, BlockProducer, SealedBlockImporter, ChainInfo,
 	AccountData, Nonce,
 };
--- a/ethcore/src/miner/pool_client.rs
+++ b/ethcore/src/miner/pool_client.rs
@@ -25,6 +25,7 @@ use std::{
 use ethereum_types::{H256, U256, Address};
 use ethcore_miner::pool;
 use ethcore_miner::pool::client::NonceClient;
+use ethcore_miner::service_transaction_checker::ServiceTransactionChecker;
 use types::transaction::{
 	self,
 	UnverifiedTransaction,
@@ -34,10 +35,10 @@ use types::header::Header;
 use parking_lot::RwLock;

 use account_provider::AccountProvider;
-use client::{TransactionId, BlockInfo, CallContract, Nonce};
+use call_contract::CallContract;
+use client::{TransactionId, BlockInfo, Nonce};
 use engines::EthEngine;
 use miner;
-use miner::service_transaction_checker::ServiceTransactionChecker;
 use transaction_ext::Transaction;

 /// Cache for state nonces.
--- a/ethcore/src/spec/spec.rs
+++ b/ethcore/src/spec/spec.rs
@@ -121,6 +121,8 @@ pub struct CommonParams {
 	pub eip1052_transition: BlockNumber,
 	/// Number of first block where EIP-1283 rules begin.
 	pub eip1283_transition: BlockNumber,
+	/// Number of first block where EIP-1283 rules end.
+	pub eip1283_disable_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.
@@ -189,7 +191,7 @@ impl CommonParams {
 		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;
+		schedule.eip1283 = block_number >= self.eip1283_transition && !(block_number >= self.eip1283_disable_transition);
 		if block_number >= self.eip210_transition {
 			schedule.blockhash_gas = 800;
 		}
@@ -300,6 +302,10 @@ impl From<ethjson::spec::Params> for CommonParams {
 				BlockNumber::max_value,
 				Into::into,
 			),
+			eip1283_disable_transition: p.eip1283_disable_transition.map_or_else(
+				BlockNumber::max_value,
+				Into::into,
+			),
 			eip1014_transition: p.eip1014_transition.map_or_else(
 				BlockNumber::max_value,
 				Into::into,
--- a/ethcore/src/state/account.rs
+++ b/ethcore/src/state/account.rs
@@ -451,6 +451,11 @@ impl Account {
 		}
 	}

+	/// Whether the base storage root of this account is unchanged.
+	pub fn is_base_storage_root_unchanged(&self) -> bool {
+		self.original_storage_cache.is_none()
+	}
+
 	/// Storage root where the account changes are based upon.
 	pub fn base_storage_root(&self) -> H256 {
 		self.storage_root
@@ -461,12 +466,12 @@ impl Account {

 	/// Increment the nonce of the account by one.
 	pub fn inc_nonce(&mut self) {
-		self.nonce = self.nonce + U256::from(1u8);
+		self.nonce = self.nonce.saturating_add(U256::from(1u8));
 	}

 	/// Increase account balance.
 	pub fn add_balance(&mut self, x: &U256) {
-		self.balance = self.balance + *x;
+		self.balance = self.balance.saturating_add(*x);
 	}

 	/// Decrease account balance.
--- a/ethcore/src/state/mod.rs
+++ b/ethcore/src/state/mod.rs
@@ -500,7 +500,12 @@ impl<B: Backend> State<B> {
 	/// it will have its code reset, ready for `init_code()`.
 	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))));
+		let (nonce, overflow) = self.account_start_nonce.overflowing_add(nonce_offset);
+		if overflow {
+			return Err(Box::new(TrieError::DecoderError(H256::from(contract),
+				rlp::DecoderError::Custom("Nonce overflow".into()))));
+		}
+		self.insert_cache(contract, AccountEntry::new_dirty(Some(Account::new_contract(balance, nonce, original_storage_root))));
 		Ok(())
 	}

@@ -539,6 +544,13 @@ impl<B: Backend> State<B> {
 			|a| a.as_ref().map_or(self.account_start_nonce, |account| *account.nonce()))
 	}

+	/// Whether the base storage root of an account remains unchanged.
+	pub fn is_base_storage_root_unchanged(&self, a: &Address) -> TrieResult<bool> {
+		Ok(self.ensure_cached(a, RequireCache::None, true,
+			|a| a.as_ref().map(|account| account.is_base_storage_root_unchanged()))?
+			.unwrap_or(true))
+	}
+
 	/// Get the storage root of account `a`.
 	pub fn storage_root(&self, a: &Address) -> TrieResult<Option<H256>> {
 		self.ensure_cached(a, RequireCache::None, true,
@@ -1277,6 +1289,13 @@ impl<B: Backend> fmt::Debug for State<B> {
 	}
 }

+impl State<StateDB> {
+	/// Get a reference to the underlying state DB.
+	pub fn db(&self) -> &StateDB {
+		&self.db
+	}
+}
+
 // TODO: cloning for `State` shouldn't be possible in general; Remove this and use
 // checkpoints where possible.
 impl Clone for State<StateDB> {
--- a/ethcore/src/tx_filter.rs
+++ b/ethcore/src/tx_filter.rs
@@ -20,7 +20,8 @@ use ethereum_types::{H256, U256, Address};
 use lru_cache::LruCache;
 use ethabi::FunctionOutputDecoder;

-use client::{BlockInfo, CallContract, BlockId};
+use call_contract::CallContract;
+use client::{BlockInfo, BlockId};
 use parking_lot::Mutex;
 use spec::CommonParams;
 use types::transaction::{Action, SignedTransaction};
--- a/ethcore/src/verification/canon_verifier.rs
+++ b/ethcore/src/verification/canon_verifier.rs
@@ -16,7 +16,8 @@

 //! Canonical verifier.

-use client::{BlockInfo, CallContract};
+use call_contract::CallContract;
+use client::BlockInfo;
 use engines::EthEngine;
 use error::Error;
 use types::header::Header;
--- a/ethcore/src/verification/mod.rs
+++ b/ethcore/src/verification/mod.rs
@@ -28,7 +28,8 @@ pub use self::canon_verifier::CanonVerifier;
 pub use self::noop_verifier::NoopVerifier;
 pub use self::queue::{BlockQueue, Config as QueueConfig, VerificationQueue, QueueInfo};

-use client::{BlockInfo, CallContract};
+use call_contract::CallContract;
+use client::BlockInfo;

 /// Verifier type.
 #[derive(Debug, PartialEq, Clone)]
--- a/ethcore/src/verification/noop_verifier.rs
+++ b/ethcore/src/verification/noop_verifier.rs
@@ -16,7 +16,8 @@

 //! No-op verifier.

-use client::{BlockInfo, CallContract};
+use call_contract::CallContract;
+use client::BlockInfo;
 use engines::EthEngine;
 use error::Error;
 use types::header::Header;
--- a/ethcore/src/verification/verification.rs
+++ b/ethcore/src/verification/verification.rs
@@ -32,13 +32,33 @@ use triehash::ordered_trie_root;
 use unexpected::{Mismatch, OutOfBounds};

 use blockchain::*;
-use client::{BlockInfo, CallContract};
+use call_contract::CallContract;
+use client::BlockInfo;
 use engines::EthEngine;
 use error::{BlockError, Error};
 use types::{BlockNumber, header::Header};
 use types::transaction::SignedTransaction;
 use verification::queue::kind::blocks::Unverified;

+
+/// Returns `Ok<SystemTime>` when the result less or equal to `i32::max_value` to prevent `SystemTime` to panic because
+/// it is platform specific, may be i32 or i64.
+///
+/// `Err<BlockError::TimestampOver` otherwise.
+///
+// FIXME: @niklasad1 - remove this when and use `SystemTime::checked_add`
+// when https://github.com/rust-lang/rust/issues/55940 is stabilized.
+fn timestamp_checked_add(sys: SystemTime, d2: Duration) -> Result<SystemTime, BlockError> {
+	let d1 = sys.duration_since(UNIX_EPOCH).map_err(|_| BlockError::TimestampOverflow)?;
+	let total_time = d1.checked_add(d2).ok_or(BlockError::TimestampOverflow)?;
+
+	if total_time.as_secs() <= i32::max_value() as u64 {
+		Ok(sys + d2)
+	} else {
+		Err(BlockError::TimestampOverflow)
+	}
+}
+
 /// Preprocessed block data gathered in `verify_block_unordered` call
 pub struct PreverifiedBlock {
 	/// Populated block header
@@ -305,7 +325,7 @@ pub fn verify_header_params(header: &Header, engine: &EthEngine, is_full: bool,
 		const ACCEPTABLE_DRIFT: Duration = Duration::from_secs(15);
 		let max_time = SystemTime::now() + ACCEPTABLE_DRIFT;
 		let invalid_threshold = max_time + ACCEPTABLE_DRIFT * 9;
-		let timestamp = UNIX_EPOCH + Duration::from_secs(header.timestamp());
+		let timestamp = timestamp_checked_add(UNIX_EPOCH, Duration::from_secs(header.timestamp()))?;

 		if timestamp > invalid_threshold {
 			return Err(From::from(BlockError::InvalidTimestamp(OutOfBounds { max: Some(max_time), min: None, found: timestamp })))
@@ -327,8 +347,8 @@ fn verify_parent(header: &Header, parent: &Header, engine: &EthEngine) -> Result
 	let gas_limit_divisor = engine.params().gas_limit_bound_divisor;

 	if !engine.is_timestamp_valid(header.timestamp(), parent.timestamp()) {
-		let min = SystemTime::now() + Duration::from_secs(parent.timestamp() + 1);
-		let found = SystemTime::now() + Duration::from_secs(header.timestamp());
+		let min = timestamp_checked_add(SystemTime::now(), Duration::from_secs(parent.timestamp().saturating_add(1)))?;
+		let found = timestamp_checked_add(SystemTime::now(), Duration::from_secs(header.timestamp()))?;
 		return Err(From::from(BlockError::InvalidTimestamp(OutOfBounds { max: None, min: Some(min), found })))
 	}
 	if header.number() != parent.number() + 1 {
@@ -742,7 +762,8 @@ mod tests {
 		check_fail_timestamp(family_test(&create_test_block_with_data(&header, &good_transactions, &good_uncles), engine, &bc), false);

 		header = good.clone();
-		header.set_timestamp(2450000000);
+		// will return `BlockError::TimestampOverflow` when timestamp > `i32::max_value()`
+		header.set_timestamp(i32::max_value() as u64);
 		check_fail_timestamp(basic_test(&create_test_block_with_data(&header, &good_transactions, &good_uncles), engine), false);

 		header = good.clone();
@@ -814,4 +835,11 @@ mod tests {
 		check_fail(unordered_test(&create_test_block_with_data(&header, &bad_transactions, &[]), &engine), TooManyTransactions(keypair.address()));
 		unordered_test(&create_test_block_with_data(&header, &good_transactions, &[]), &engine).unwrap();
 	}
+
+	#[test]
+	fn checked_add_systime_dur() {
+		assert!(timestamp_checked_add(UNIX_EPOCH, Duration::new(i32::max_value() as u64 + 1, 0)).is_err());
+		assert!(timestamp_checked_add(UNIX_EPOCH, Duration::new(i32::max_value() as u64, 0)).is_ok());
+		assert!(timestamp_checked_add(UNIX_EPOCH, Duration::new(i32::max_value() as u64 - 1, 1_000_000_000)).is_ok());
+	}
 }
--- a/ethcore/src/verification/verifier.rs
+++ b/ethcore/src/verification/verifier.rs
@@ -16,7 +16,8 @@

 //! A generic verifier trait.

-use client::{BlockInfo, CallContract};
+use call_contract::CallContract;
+use client::BlockInfo;
 use engines::EthEngine;
 use error::Error;
 use types::header::Header;
--- a/json/src/spec/params.rs
+++ b/json/src/spec/params.rs
@@ -89,6 +89,9 @@ pub struct Params {
 	pub eip1052_transition: Option<Uint>,
 	/// See `CommonParams` docs.
 	pub eip1283_transition: Option<Uint>,
+	/// See `CommonParams` docs.
+	pub eip1283_disable_transition: Option<Uint>,
+	/// See `CommonParams` docs.
 	pub eip1014_transition: Option<Uint>,
 	/// See `CommonParams` docs.
 	pub dust_protection_transition: Option<Uint>,
--- a/json/src/spec/spec.rs
+++ b/json/src/spec/spec.rs
@@ -30,6 +30,7 @@ pub enum ForkSpec {
 	Homestead,
 	Byzantium,
 	Constantinople,
+	ConstantinopleFix,
 	EIP158ToByzantiumAt5,
 	FrontierToHomesteadAt5,
 	HomesteadToDaoAt5,
--- a/miner/Cargo.toml
+++ b/miner/Cargo.toml
@@ -17,6 +17,10 @@ url = { version = "1", optional = true }
 ansi_term = "0.10"
 common-types = { path = "../ethcore/types" }
 error-chain = "0.12"
+ethabi = "6.0"
+ethabi-derive = "6.0"
+ethabi-contract = "6.0"
+ethcore-call-contract = { path = "../ethcore/call-contract" }
 ethereum-types = "0.4"
 futures = "0.1"
 heapsize = "0.4"
--- a/ethcore/res/contracts/service_transaction.json
+++ b/ethcore/res/contracts/service_transaction.json
--- a/miner/src/lib.rs
+++ b/miner/src/lib.rs
@@ -21,6 +21,8 @@

 extern crate ansi_term;
 extern crate common_types as types;
+extern crate ethabi;
+extern crate ethcore_call_contract as call_contract;
 extern crate ethereum_types;
 extern crate futures;
 extern crate heapsize;
@@ -33,6 +35,10 @@ extern crate price_info;
 extern crate rlp;
 extern crate transaction_pool as txpool;

+#[macro_use]
+extern crate ethabi_contract;
+#[macro_use]
+extern crate ethabi_derive;
 #[macro_use]
 extern crate error_chain;
 #[macro_use]
@@ -52,5 +58,6 @@ pub mod external;
 pub mod gas_price_calibrator;
 pub mod gas_pricer;
 pub mod pool;
+pub mod service_transaction_checker;
 #[cfg(feature = "work-notify")]
 pub mod work_notify;
--- a/miner/src/pool/queue.rs
+++ b/miner/src/pool/queue.rs
@@ -474,7 +474,7 @@ impl TransactionQueue {

 		self.pool.read().pending_from_sender(state_readiness, address)
 			.last()
-			.map(|tx| tx.signed().nonce + 1)
+			.map(|tx| tx.signed().nonce.saturating_add(U256::from(1)))
 	}

 	/// Retrieve a transaction from the pool.
--- a/miner/src/pool/ready.rs
+++ b/miner/src/pool/ready.rs
@@ -95,7 +95,7 @@ impl<C: NonceClient> txpool::Ready<VerifiedTransaction> for State<C> {
 			},
 			cmp::Ordering::Less => txpool::Readiness::Stale,
 			cmp::Ordering::Equal => {
-				*nonce = *nonce + 1;
+				*nonce = nonce.saturating_add(U256::from(1));
 				txpool::Readiness::Ready
 			},
 		}
@@ -159,7 +159,7 @@ impl<C: Fn(&Address) -> Option<U256>> txpool::Ready<VerifiedTransaction> for Opt
 			cmp::Ordering::Greater => txpool::Readiness::Future,
 			cmp::Ordering::Less => txpool::Readiness::Stale,
 			cmp::Ordering::Equal => {
-				*nonce = *nonce + 1;
+				*nonce = nonce.saturating_add(U256::from(1));
 				txpool::Readiness::Ready
 			},
 		}
--- a/miner/src/pool/verifier.rs
+++ b/miner/src/pool/verifier.rs
@@ -283,7 +283,19 @@ impl<C: Client> txpool::Verifier<Transaction> for Verifier<C, ::pool::scoring::N
 			}
 		}

-		let cost = transaction.value + transaction.gas_price * transaction.gas;
+		let (full_gas_price, overflow_1) = transaction.gas_price.overflowing_mul(transaction.gas);
+		let (cost, overflow_2) = transaction.value.overflowing_add(full_gas_price);
+		if overflow_1 || overflow_2 {
+			trace!(
+				target: "txqueue",
+				"[{:?}] Rejected tx, price overflow",
+				hash
+			);
+			bail!(transaction::Error::InsufficientBalance {
+				cost: U256::max_value(),
+				balance: account_details.balance,
+			});
+		}
 		if account_details.balance < cost {
 			debug!(
 				target: "txqueue",
--- a/ethcore/src/miner/service_transaction_checker.rs
+++ b/ethcore/src/miner/service_transaction_checker.rs
@@ -16,7 +16,8 @@

 //! A service transactions contract checker.

-use client::{RegistryInfo, CallContract, BlockId};
+use call_contract::{CallContract, RegistryInfo};
+use types::ids::BlockId;
 use types::transaction::SignedTransaction;
 use ethabi::FunctionOutputDecoder;

--- a/parity/lib.rs
+++ b/parity/lib.rs
@@ -43,8 +43,9 @@ extern crate toml;
 extern crate blooms_db;
 extern crate cli_signer;
 extern crate common_types as types;
-extern crate ethcore;
 extern crate parity_bytes as bytes;
+extern crate ethcore;
+extern crate ethcore_call_contract as call_contract;
 extern crate ethcore_db;
 extern crate ethcore_io as io;
 extern crate ethcore_light as light;
--- a/parity/run.rs
+++ b/parity/run.rs
@@ -21,8 +21,9 @@ use std::thread;

 use ansi_term::Colour;
 use bytes::Bytes;
+use call_contract::CallContract;
 use ethcore::account_provider::{AccountProvider, AccountProviderSettings};
-use ethcore::client::{BlockId, CallContract, Client, Mode, DatabaseCompactionProfile, VMType, BlockChainClient, BlockInfo};
+use ethcore::client::{BlockId, Client, Mode, DatabaseCompactionProfile, VMType, BlockChainClient, BlockInfo};
 use ethstore::ethkey;
 use ethcore::miner::{stratum, Miner, MinerService, MinerOptions};
 use ethcore::snapshot::{self, SnapshotConfiguration};
--- a/rpc/src/v1/helpers/dispatch.rs
+++ b/rpc/src/v1/helpers/dispatch.rs
@@ -41,11 +41,11 @@ use types::basic_account::BasicAccount;
 use types::ids::BlockId;

 use jsonrpc_core::{BoxFuture, Result, Error};
-use jsonrpc_core::futures::{future, Future, Poll, Async};
+use jsonrpc_core::futures::{future, Future, Poll, Async, IntoFuture};
 use jsonrpc_core::futures::future::Either;
 use v1::helpers::{errors, nonce, TransactionRequest, FilledTransactionRequest, ConfirmationPayload};
 use v1::types::{
-	H256 as RpcH256, H520 as RpcH520, Bytes as RpcBytes,
+	H520 as RpcH520, Bytes as RpcBytes,
 	RichRawTransaction as RpcRichRawTransaction,
 	ConfirmationPayload as RpcConfirmationPayload,
 	ConfirmationResponse,
@@ -69,12 +69,20 @@ pub trait Dispatcher: Send + Sync + Clone {
 	fn fill_optional_fields(&self, request: TransactionRequest, default_sender: Address, force_nonce: bool)
 		-> BoxFuture<FilledTransactionRequest>;

-	/// Sign the given transaction request without dispatching, fetching appropriate nonce.
-	fn sign(&self, accounts: Arc<AccountProvider>, filled: FilledTransactionRequest, password: SignWith)
-		-> BoxFuture<WithToken<SignedTransaction>>;
+	/// Sign the given transaction request, fetching appropriate nonce and executing the PostSign action
+	fn sign<P>(
+		&self,
+		accounts: Arc<AccountProvider>,
+		filled: FilledTransactionRequest,
+		password: SignWith,
+		post_sign: P
+	) -> BoxFuture<P::Item>
+		where
+			P: PostSign + 'static,
+		    <P::Out as futures::future::IntoFuture>::Future: Send;

 	/// Converts a `SignedTransaction` into `RichRawTransaction`
-	fn enrich(&self, SignedTransaction) -> RpcRichRawTransaction;
+	fn enrich(&self, signed: SignedTransaction) -> RpcRichRawTransaction;

 	/// "Dispatch" a local transaction.
 	fn dispatch_transaction(&self, signed_transaction: PendingTransaction)
@@ -164,19 +172,30 @@ impl<C: miner::BlockChainClient + BlockChainClient, M: MinerService> Dispatcher
 		}))
 	}

-	fn sign(&self, accounts: Arc<AccountProvider>, filled: FilledTransactionRequest, password: SignWith)
-		-> BoxFuture<WithToken<SignedTransaction>>
+	fn sign<P>(
+		&self,
+		accounts: Arc<AccountProvider>,
+		filled: FilledTransactionRequest,
+		password: SignWith,
+		post_sign: P
+	) -> BoxFuture<P::Item>
+		where
+			P: PostSign + 'static,
+		    <P::Out as futures::future::IntoFuture>::Future: Send
 	{
 		let chain_id = self.client.signing_chain_id();

 		if let Some(nonce) = filled.nonce {
-			return Box::new(future::done(sign_transaction(&*accounts, filled, chain_id, nonce, password)));
+			let future = sign_transaction(&*accounts, filled, chain_id, nonce, password)
+				.into_future()
+				.and_then(move |signed| post_sign.execute(signed));
+			Box::new(future)
+		} else {
+			let state = self.state_nonce(&filled.from);
+			let reserved = self.nonces.lock().reserve(filled.from, state);
+
+			Box::new(ProspectiveSigner::new(accounts, filled, chain_id, reserved, password, post_sign))
 		}
-
-		let state = self.state_nonce(&filled.from);
-		let reserved = self.nonces.lock().reserve(filled.from, state);
-
-		Box::new(ProspectiveSigner::new(accounts, filled, chain_id, reserved, password))
 	}

 	fn enrich(&self, signed_transaction: SignedTransaction) -> RpcRichRawTransaction {
@@ -396,12 +415,24 @@ impl Dispatcher for LightDispatcher {
 		}))
 	}

-	fn sign(&self, accounts: Arc<AccountProvider>, filled: FilledTransactionRequest, password: SignWith)
-		-> BoxFuture<WithToken<SignedTransaction>>
+	fn sign<P>(
+		&self,
+		accounts: Arc<AccountProvider>,
+		filled: FilledTransactionRequest,
+		password: SignWith,
+		post_sign: P
+	) -> BoxFuture<P::Item>
+		where
+			P: PostSign + 'static,
+		    <P::Out as futures::future::IntoFuture>::Future: Send
 	{
 		let chain_id = self.client.signing_chain_id();
 		let nonce = filled.nonce.expect("nonce is always provided; qed");
-		Box::new(future::done(sign_transaction(&*accounts, filled, chain_id, nonce, password)))
+
+		let future = sign_transaction(&*accounts, filled, chain_id, nonce, password)
+			.into_future()
+			.and_then(move |signed| post_sign.execute(signed));
+		Box::new(future)
 	}

 	fn enrich(&self, signed_transaction: SignedTransaction) -> RpcRichRawTransaction {
@@ -449,28 +480,60 @@ fn sign_transaction(
 #[derive(Debug, Clone, Copy)]
 enum ProspectiveSignerState {
 	TryProspectiveSign,
+	WaitForPostSign,
 	WaitForNonce,
-	Finish,
 }

-struct ProspectiveSigner {
+struct ProspectiveSigner<P: PostSign> {
 	accounts: Arc<AccountProvider>,
 	filled: FilledTransactionRequest,
 	chain_id: Option<u64>,
 	reserved: nonce::Reserved,
 	password: SignWith,
 	state: ProspectiveSignerState,
-	prospective: Option<Result<WithToken<SignedTransaction>>>,
+	prospective: Option<WithToken<SignedTransaction>>,
 	ready: Option<nonce::Ready>,
+	post_sign: Option<P>,
+	post_sign_future: Option<<P::Out as IntoFuture>::Future>
 }

-impl ProspectiveSigner {
+/// action to execute after signing
+/// e.g importing a transaction into the chain
+pub trait PostSign: Send {
+	/// item that this PostSign returns
+	type Item: Send;
+	/// incase you need to perform async PostSign actions
+	type Out: IntoFuture<Item = Self::Item, Error = Error> + Send;
+	/// perform an action with the signed transaction
+	fn execute(self, signer: WithToken<SignedTransaction>) -> Self::Out;
+}
+
+impl PostSign for () {
+	type Item = WithToken<SignedTransaction>;
+	type Out = Result<Self::Item>;
+	fn execute(self, signed: WithToken<SignedTransaction>) -> Self::Out {
+		Ok(signed)
+	}
+}
+
+impl<F: Send, T: Send> PostSign for F
+	where F: FnOnce(WithToken<SignedTransaction>) -> Result<T>
+{
+	type Item = T;
+	type Out = Result<Self::Item>;
+	fn execute(self, signed: WithToken<SignedTransaction>) -> Self::Out {
+		(self)(signed)
+	}
+}
+
+impl<P: PostSign> ProspectiveSigner<P> {
 	pub fn new(
 		accounts: Arc<AccountProvider>,
 		filled: FilledTransactionRequest,
 		chain_id: Option<u64>,
 		reserved: nonce::Reserved,
 		password: SignWith,
+		post_sign: P
 	) -> Self {
 		// If the account is permanently unlocked we can try to sign
 		// using prospective nonce. This should speed up sending
@@ -491,6 +554,8 @@ impl ProspectiveSigner {
 			},
 			prospective: None,
 			ready: None,
+			post_sign: Some(post_sign),
+			post_sign_future: None
 		}
 	}

@@ -509,8 +574,8 @@ impl ProspectiveSigner {
 	}
 }

-impl Future for ProspectiveSigner {
-	type Item = WithToken<SignedTransaction>;
+impl<P: PostSign> Future for ProspectiveSigner<P> {
+	type Item = P::Item;
 	type Error = Error;

 	fn poll(&mut self) -> Poll<Self::Item, Self::Error> {
@@ -523,32 +588,45 @@ impl Future for ProspectiveSigner {
 					match self.poll_reserved()? {
 						Async::NotReady => {
 							self.state = WaitForNonce;
-							self.prospective = Some(self.sign(self.reserved.prospective_value()));
+							self.prospective = Some(self.sign(self.reserved.prospective_value())?);
 						},
 						Async::Ready(nonce) => {
-							self.state = Finish;
-							self.prospective = Some(self.sign(nonce.value()));
+							self.state = WaitForPostSign;
+							self.post_sign_future = Some(self.post_sign.take()
+								.expect("post_sign is set on creation; qed")
+								.execute(self.sign(nonce.value())?)
+								.into_future());
 							self.ready = Some(nonce);
 						},
 					}
 				},
 				WaitForNonce => {
 					let nonce = try_ready!(self.poll_reserved());
-					let result = match (self.prospective.take(), nonce.matches_prospective()) {
+					let prospective = match (self.prospective.take(), nonce.matches_prospective()) {
 						(Some(prospective), true) => prospective,
-						_ => self.sign(nonce.value()),
+						_ => self.sign(nonce.value())?,
 					};
-					self.state = Finish;
-					self.prospective = Some(result);
 					self.ready = Some(nonce);
+					self.state = WaitForPostSign;
+					self.post_sign_future = Some(self.post_sign.take()
+						.expect("post_sign is set on creation; qed")
+						.execute(prospective)
+						.into_future());
 				},
-				Finish => {
-					if let (Some(result), Some(nonce)) = (self.prospective.take(), self.ready.take()) {
-						// Mark nonce as used on successful signing
-						return result.map(move |tx| {
-							nonce.mark_used();
-							Async::Ready(tx)
-						})
+				WaitForPostSign => {
+					if let Some(mut fut) = self.post_sign_future.as_mut() {
+						match fut.poll()? {
+							Async::Ready(item) => {
+								let nonce = self.ready
+									.take()
+									.expect("nonce is set before state transitions to WaitForPostSign; qed");
+								nonce.mark_used();
+								return Ok(Async::Ready(item))
+							},
+							Async::NotReady => {
+								return Ok(Async::NotReady)
+							}
+						}
 					} else {
 						panic!("Poll after ready.");
 					}
@@ -655,19 +733,21 @@ pub fn execute<D: Dispatcher + 'static>(
 	match payload {
 		ConfirmationPayload::SendTransaction(request) => {
 			let condition = request.condition.clone().map(Into::into);
-			Box::new(dispatcher.sign(accounts, request, pass)
-				.map(move |v| v.map(move |tx| PendingTransaction::new(tx, condition)))
-				.map(WithToken::into_tuple)
-				.map(|(tx, token)| (tx, token, dispatcher))
-				.and_then(|(tx, tok, dispatcher)| {
-					dispatcher.dispatch_transaction(tx)
-						.map(RpcH256::from)
-						.map(ConfirmationResponse::SendTransaction)
-						.map(move |h| WithToken::from((h, tok)))
-				}))
+			let cloned_dispatcher = dispatcher.clone();
+			let post_sign = move |with_token_signed: WithToken<SignedTransaction>| {
+				let (signed, token) = with_token_signed.into_tuple();
+				let signed_transaction = PendingTransaction::new(signed, condition);
+				cloned_dispatcher.dispatch_transaction(signed_transaction)
+					.map(|hash| (hash, token))
+			};
+			let future = dispatcher.sign(accounts, request, pass, post_sign)
+				.map(|(hash, token)| {
+					WithToken::from((ConfirmationResponse::SendTransaction(hash.into()), token))
+				});
+			Box::new(future)
 		},
 		ConfirmationPayload::SignTransaction(request) => {
-			Box::new(dispatcher.sign(accounts, request, pass)
+			Box::new(dispatcher.sign(accounts, request, pass, ())
 				.map(move |result| result
 					.map(move |tx| dispatcher.enrich(tx))
 					.map(ConfirmationResponse::SignTransaction)
--- a/rpc/src/v1/impls/personal.rs
+++ b/rpc/src/v1/impls/personal.rs
@@ -18,16 +18,17 @@
 use std::sync::Arc;
 use std::time::Duration;

-use bytes::{Bytes, ToPretty};
+use bytes::Bytes;
 use ethcore::account_provider::AccountProvider;
 use types::transaction::PendingTransaction;
+use types::transaction::SignedTransaction;
 use ethereum_types::{H520, U128, Address};
 use ethkey::{public_to_address, recover, Signature};

 use jsonrpc_core::{BoxFuture, Result};
 use jsonrpc_core::futures::{future, Future};
 use v1::helpers::{errors, eip191};
-use v1::helpers::dispatch::{self, eth_data_hash, Dispatcher, SignWith};
+use v1::helpers::dispatch::{self, eth_data_hash, Dispatcher, SignWith, PostSign, WithToken};
 use v1::traits::Personal;
 use v1::types::{
 	H160 as RpcH160, H256 as RpcH256, H520 as RpcH520, U128 as RpcU128,
@@ -68,7 +69,16 @@ impl<D: Dispatcher> PersonalClient<D> {
 }

 impl<D: Dispatcher + 'static> PersonalClient<D> {
-	fn do_sign_transaction(&self, _meta: Metadata, request: TransactionRequest, password: String) -> BoxFuture<(PendingTransaction, D)> {
+	fn do_sign_transaction<P>(
+		&self,
+		_meta: Metadata,
+		request: TransactionRequest,
+		password: String,
+		post_sign: P
+ 	) -> BoxFuture<P::Item>
+		where P: PostSign + 'static,
+ 		      <P::Out as futures::future::IntoFuture>::Future: Send
+	{
 		let dispatcher = self.dispatcher.clone();
 		let accounts = self.accounts.clone();

@@ -86,11 +96,7 @@ impl<D: Dispatcher + 'static> PersonalClient<D> {

 		Box::new(dispatcher.fill_optional_fields(request.into(), default, false)
 			.and_then(move |filled| {
-				let condition = filled.condition.clone().map(Into::into);
-				dispatcher.sign(accounts, filled, SignWith::Password(password.into()))
-					.map(|tx| tx.into_value())
-					.map(move |tx| PendingTransaction::new(tx, condition))
-					.map(move |tx| (tx, dispatcher))
+				dispatcher.sign(accounts, filled, SignWith::Password(password.into()), post_sign)
 			})
 		)
 	}
@@ -223,18 +229,26 @@ impl<D: Dispatcher + 'static> Personal for PersonalClient<D> {
 	}

 	fn sign_transaction(&self, meta: Metadata, request: TransactionRequest, password: String) -> BoxFuture<RpcRichRawTransaction> {
-		Box::new(self.do_sign_transaction(meta, request, password)
-			.map(|(pending_tx, dispatcher)| dispatcher.enrich(pending_tx.transaction)))
+		let condition = request.condition.clone().map(Into::into);
+		let dispatcher = self.dispatcher.clone();
+		Box::new(self.do_sign_transaction(meta, request, password, ())
+			.map(move |tx| PendingTransaction::new(tx.into_value(), condition))
+			.map(move |pending_tx| dispatcher.enrich(pending_tx.transaction)))
 	}

 	fn send_transaction(&self, meta: Metadata, request: TransactionRequest, password: String) -> BoxFuture<RpcH256> {
-		Box::new(self.do_sign_transaction(meta, request, password)
-			.and_then(|(pending_tx, dispatcher)| {
-				let chain_id = pending_tx.chain_id();
-				trace!(target: "miner", "send_transaction: dispatching tx: {} for chain ID {:?}",
-					::rlp::encode(&*pending_tx).pretty(), chain_id);
-
-				dispatcher.dispatch_transaction(pending_tx).map(Into::into)
+		let condition = request.condition.clone().map(Into::into);
+		let dispatcher = self.dispatcher.clone();
+		Box::new(self.do_sign_transaction(meta, request, password,  move |signed: WithToken<SignedTransaction>| {
+			dispatcher.dispatch_transaction(
+				PendingTransaction::new(
+					signed.into_value(),
+					condition
+				)
+			)
+		})
+			.and_then(|hash| {
+				Ok(RpcH256::from(hash))
 			})
 		)
 	}
--- a/rpc/src/v1/types/bytes.rs
+++ b/rpc/src/v1/types/bytes.rs
@@ -74,7 +74,7 @@ impl<'a> Visitor<'a> for BytesVisitor {
 	}

 	fn visit_str<E>(self, value: &str) -> Result<Self::Value, E> where E: Error {
-		if value.len() >= 2 && &value[0..2] == "0x" && value.len() & 1 == 0 {
+		if value.len() >= 2 && value.starts_with("0x") && value.len() & 1 == 0 {
 			Ok(Bytes::new(FromHex::from_hex(&value[2..]).map_err(|e| Error::custom(format!("Invalid hex: {}", e)))?))
 		} else {
 			Err(Error::custom("Invalid bytes format. Expected a 0x-prefixed hex string with even length"))
@@ -101,6 +101,7 @@ mod tests {

 	#[test]
 	fn test_bytes_deserialize() {
+		let bytes0: Result<Bytes, serde_json::Error> = serde_json::from_str(r#""∀∂""#);
 		let bytes1: Result<Bytes, serde_json::Error> = serde_json::from_str(r#""""#);
 		let bytes2: Result<Bytes, serde_json::Error> = serde_json::from_str(r#""0x123""#);
 		let bytes3: Result<Bytes, serde_json::Error> = serde_json::from_str(r#""0xgg""#);
@@ -109,6 +110,7 @@ mod tests {
 		let bytes5: Bytes = serde_json::from_str(r#""0x12""#).unwrap();
 		let bytes6: Bytes = serde_json::from_str(r#""0x0123""#).unwrap();

+		assert!(bytes0.is_err());
 		assert!(bytes1.is_err());
 		assert!(bytes2.is_err());
 		assert!(bytes3.is_err());
--- a/rpc/src/v1/types/hash.rs
+++ b/rpc/src/v1/types/hash.rs
@@ -129,7 +129,7 @@ macro_rules! impl_hash {

 					fn visit_str<E>(self, value: &str) -> Result<Self::Value, E> where E: serde::de::Error {

-						if value.len() < 2 || &value[0..2] != "0x" {
+						if value.len() < 2 || !value.starts_with("0x") {
 							return Err(E::custom("expected a hex-encoded hash with 0x prefix"));
 						}
 						if value.len() != 2 + $size * 2 {
--- a/rpc/src/v1/types/uint.rs
+++ b/rpc/src/v1/types/uint.rs
@@ -72,7 +72,7 @@ macro_rules! impl_uint {
 					}

 					fn visit_str<E>(self, value: &str) -> Result<Self::Value, E> where E: serde::de::Error {
-						if value.len() < 2  || &value[0..2] != "0x" {
+						if value.len() < 2  || !value.starts_with("0x") {
 							return Err(E::custom("expected a hex-encoded numbers with 0x prefix"))
 						}

@@ -140,12 +140,14 @@ mod tests {

 	#[test]
 	fn should_fail_to_deserialize_decimals() {
+		let deserialized0: Res = serde_json::from_str(r#""∀∂""#);
 		let deserialized1: Res = serde_json::from_str(r#""""#);
 		let deserialized2: Res = serde_json::from_str(r#""0""#);
 		let deserialized3: Res = serde_json::from_str(r#""10""#);
 		let deserialized4: Res = serde_json::from_str(r#""1000000""#);
 		let deserialized5: Res = serde_json::from_str(r#""1000000000000000000""#);

+		assert!(deserialized0.is_err());
 		assert!(deserialized1.is_err());
 		assert!(deserialized2.is_err());
 		assert!(deserialized3.is_err());
--- a/scripts/docker/hub/Dockerfile
+++ b/scripts/docker/hub/Dockerfile
@@ -1,8 +1,5 @@
 FROM ubuntu:xenial
-MAINTAINER Parity Technologies <devops@parity.io>
-#set ENVIROMENT
-ARG TARGET
-ENV TARGET ${TARGET}
+LABEL MAINTAINER="Parity Technologies <devops-team@parity.io>"

 # install tools and dependencies
 RUN apt update && apt install -y --no-install-recommends openssl libudev-dev file curl jq
@@ -10,27 +7,25 @@ RUN apt update && apt install -y --no-install-recommends openssl libudev-dev fil
 # show backtraces
 ENV RUST_BACKTRACE 1

-#cleanup Docker image
-RUN apt autoremove -y
-RUN apt clean -y
-RUN rm -rf /tmp/* /var/tmp/* /var/lib/apt/lists/*
+# cleanup Docker image
+RUN apt autoremove -y \
+  && apt clean -y \
+  && rm -rf /tmp/* /var/tmp/* /var/lib/apt/lists/*

 RUN groupadd -g 1000 parity \
  && useradd -m -u 1000 -g parity -s /bin/sh parity

+WORKDIR /home/parity

-#add TARGET to docker image
-COPY artifacts/x86_64-unknown-linux-gnu/$TARGET /bin/$TARGET
-
-# Build a shell script because the ENTRYPOINT command doesn't like using ENV
-RUN echo "#!/bin/bash \n ${TARGET} \$@" > ./entrypoint.sh
-RUN chmod +x ./entrypoint.sh
+# add parity-ethereum to docker image
+COPY artifacts/x86_64-unknown-linux-gnu/parity /bin/parity

 COPY scripts/docker/hub/check_sync.sh /check_sync.sh

 # switch to user parity here
 USER parity

-# setup ENTRYPOINT
+VOLUME [ "/home/parity/.local/share/io.parity.ethereum" ]
 EXPOSE 5001 8080 8082 8083 8545 8546 8180 30303/tcp 30303/udp
-ENTRYPOINT ["./entrypoint.sh"]
+
+ENTRYPOINT ["/bin/parity"]
--- a/scripts/gitlab/build-unix.sh
+++ b/scripts/gitlab/build-unix.sh
@@ -9,48 +9,34 @@ echo "CARGO_HOME:       " $CARGO_HOME
 echo "CARGO_TARGET:     " $CARGO_TARGET
 echo "CC:               " $CC
 echo "CXX:              " $CXX
-
-echo "__________CARGO CONFIG__________"
-if [ "${CARGO_TARGET}" = "armv7-linux-androideabi" ]
-then
-  # use build container's cargo config
-  cat /.cargo/config
-else
-  mkdir -p .cargo
-  rm -f .cargo/config
-  echo "[target.$CARGO_TARGET]" >> .cargo/config
-  echo "linker= \"$CC\"" >> .cargo/config
-  cat .cargo/config
-fi
-
+#strip ON
+export RUSTFLAGS=" -C link-arg=-s"

 echo "_____ Building target: "$CARGO_TARGET" _____"
-time cargo build --target $CARGO_TARGET --release --features final
-time cargo build --target $CARGO_TARGET --release -p evmbin
-time cargo build --target $CARGO_TARGET --release -p ethstore-cli
-time cargo build --target $CARGO_TARGET --release -p ethkey-cli
-time cargo build --target $CARGO_TARGET --release -p whisper-cli
-
-echo "_____ Post-processing binaries _____"
-rm -rf artifacts
-mkdir -p artifacts
-cd artifacts
-mkdir -p $CARGO_TARGET
-cd $CARGO_TARGET
-cp -v ../../target/$CARGO_TARGET/release/parity ./parity
-cp -v ../../target/$CARGO_TARGET/release/parity-evm ./parity-evm
-cp -v ../../target/$CARGO_TARGET/release/ethstore ./ethstore
-cp -v ../../target/$CARGO_TARGET/release/ethkey ./ethkey
-cp -v ../../target/$CARGO_TARGET/release/whisper ./whisper
-
-
-# stripping can also be done on release build time
-# export RUSTFLAGS="${RUSTFLAGS} -C link-arg=-s"
 if [ "${CARGO_TARGET}" = "armv7-linux-androideabi" ]
 then
-  arm-linux-androideabi-strip -v ./*
+  time cargo build --target $CARGO_TARGET --release -p parity-clib --features final
 else
-  strip -v ./*
+  time cargo build --target $CARGO_TARGET --release --features final
+  time cargo build --target $CARGO_TARGET --release -p evmbin
+  time cargo build --target $CARGO_TARGET --release -p ethstore-cli
+  time cargo build --target $CARGO_TARGET --release -p ethkey-cli
+  time cargo build --target $CARGO_TARGET --release -p whisper-cli
+fi
+
+echo "_____ Post-processing binaries _____"
+mkdir -p artifacts/$CARGO_TARGET
+cd artifacts/$CARGO_TARGET
+
+if [ "${CARGO_TARGET}" = "armv7-linux-androideabi" ]
+then
+ cp -v ../../target/$CARGO_TARGET/release/libparity.so ./libparity.so
+else
+ cp -v ../../target/$CARGO_TARGET/release/parity ./parity
+ cp -v ../../target/$CARGO_TARGET/release/parity-evm ./parity-evm
+ cp -v ../../target/$CARGO_TARGET/release/ethstore ./ethstore
+ cp -v ../../target/$CARGO_TARGET/release/ethkey ./ethkey
+ cp -v ../../target/$CARGO_TARGET/release/whisper ./whisper
 fi

 echo "_____ Calculating checksums _____"
@@ -64,4 +50,3 @@ do
    ./parity tools hash $binary > $binary.sha3
  fi
 done
-
--- a/scripts/gitlab/cargo-audit.sh
+++ b/scripts/gitlab/cargo-audit.sh
@@ -1,7 +0,0 @@
-#!/bin/bash
-
-set -e # fail on any error
-set -u # treat unset variables as error
-
-cargo install cargo-audit
-cargo audit
--- a/scripts/gitlab/publish-onnet-update.sh
+++ b/scripts/gitlab/publish-onnet-update.sh
@@ -36,19 +36,3 @@ do
  esac
  cd ..
 done
-
-echo "__________Push binaries to AWS S3____________"
-aws configure set aws_access_key_id $s3_key
-aws configure set aws_secret_access_key $s3_secret
-
-case "${SCHEDULE_TAG:-${CI_COMMIT_REF_NAME}}" in
-  (beta|stable|nightly)
-    export S3_BUCKET=releases.parity.io/ethereum;
-    ;;
-  (*)
-    export S3_BUCKET=builds-parity;
-    ;;
-esac
-
-aws s3 sync ./ s3://$S3_BUCKET/${SCHEDULE_TAG:-${CI_COMMIT_REF_NAME}}/
-
--- a/scripts/gitlab/publish-snap.sh
+++ b/scripts/gitlab/publish-snap.sh
@@ -21,7 +21,19 @@ SNAP_PACKAGE="parity_"$VERSION"_"$BUILD_ARCH".snap"
 echo "__________Create snap package__________"
 echo "Release channel :" $GRADE " Branch/tag: " $CI_COMMIT_REF_NAME
 echo $VERSION:$GRADE:$BUILD_ARCH
-cat scripts/snap/snapcraft.template.yaml | envsubst '$VERSION:$GRADE:$BUILD_ARCH:$CARGO_TARGET' > snapcraft.yaml
+# cat scripts/snap/snapcraft.template.yaml | envsubst '$VERSION:$GRADE:$BUILD_ARCH:$CARGO_TARGET' > snapcraft.yaml
+# a bit more necromancy (substitutions):
+pwd
+cd /builds/$CI_PROJECT_PATH/scripts/snap/
+sed -e 's/$VERSION/'"$VERSION"'/g' \
+    -e 's/$GRADE/'"$GRADE"'/g' \
+    -e 's/$BUILD_ARCH/'"$BUILD_ARCH"'/g' \
+    -e 's/$CARGO_TARGET/'"$CARGO_TARGET"'/g' \
+    snapcraft.template.yaml > /builds/$CI_PROJECT_PATH/snapcraft.yaml
+cd /builds/$CI_PROJECT_PATH
+pwd
+apt update
+apt install -y --no-install-recommends rhash
 cat snapcraft.yaml
 snapcraft --target-arch=$BUILD_ARCH
 ls *.snap
--- a/scripts/gitlab/test-all.sh
+++ b/scripts/gitlab/test-all.sh
@@ -1,6 +1,4 @@
 #!/bin/bash
-# ARGUMENT $1 Rust flavor to test with (stable/beta/nightly)
-
 set -e # fail on any error
 set -u # treat unset variables as error

@@ -27,9 +25,6 @@ then
  exit 0
 fi

-rustup default $1
-
-git submodule update --init --recursive
 rustup show

 exec ./test.sh
--- a/scripts/snap/snapcraft.template.yaml
+++ b/scripts/snap/snapcraft.template.yaml
@@ -50,8 +50,4 @@ parts:
      cp -v ethkey $SNAPCRAFT_PART_INSTALL/usr/bin/ethkey
      cp -v ethstore $SNAPCRAFT_PART_INSTALL/usr/bin/ethstore
      cp -v whisper $SNAPCRAFT_PART_INSTALL/usr/bin/whisper
-    stage-packages: [libc6, libudev1, libstdc++6, cmake, libdb]
-  df:
-    plugin:         nil
-    stage-packages: [coreutils]
-    stage:          [bin/df]
+    stage-packages: [libc6, libudev1, libstdc++6, cmake, libdb5.3]
--- a/secret-store/Cargo.toml
+++ b/secret-store/Cargo.toml
@@ -8,6 +8,7 @@ authors = ["Parity Technologies <admin@parity.io>"]
 [dependencies]
 byteorder = "1.0"
 common-types = { path = "../ethcore/types" }
+ethcore-call-contract = { path = "../ethcore/call-contract" }
 log = "0.4"
 parking_lot = "0.7"
 hyper = { version = "0.12", default-features = false }
--- a/secret-store/src/acl_storage.rs
+++ b/secret-store/src/acl_storage.rs
@@ -17,7 +17,8 @@
 use std::sync::Arc;
 use std::collections::{HashMap, HashSet};
 use parking_lot::{Mutex, RwLock};
-use ethcore::client::{BlockId, ChainNotify, NewBlocks, CallContract};
+use call_contract::CallContract;
+use ethcore::client::{BlockId, ChainNotify, NewBlocks};
 use ethereum_types::Address;
 use ethabi::FunctionOutputDecoder;
 use trusted_client::TrustedClient;
--- a/secret-store/src/key_server_set.rs
+++ b/secret-store/src/key_server_set.rs
@@ -18,8 +18,9 @@ use std::sync::Arc;
 use std::net::SocketAddr;
 use std::collections::{BTreeMap, HashSet};
 use parking_lot::Mutex;
+use call_contract::CallContract;
 use ethabi::FunctionOutputDecoder;
-use ethcore::client::{Client, BlockChainClient, BlockId, ChainNotify, NewBlocks, CallContract};
+use ethcore::client::{Client, BlockChainClient, BlockId, ChainNotify, NewBlocks};
 use ethereum_types::{H256, Address};
 use ethkey::public_to_address;
 use bytes::Bytes;
--- a/secret-store/src/lib.rs
+++ b/secret-store/src/lib.rs
@@ -18,6 +18,7 @@ extern crate byteorder;
 extern crate common_types;
 extern crate ethabi;
 extern crate ethcore;
+extern crate ethcore_call_contract as call_contract;
 extern crate ethcore_sync as sync;
 extern crate ethereum_types;
 extern crate ethkey;
--- a/secret-store/src/listener/service_contract.rs
+++ b/secret-store/src/listener/service_contract.rs
@@ -19,7 +19,8 @@ use parking_lot::RwLock;
 use common_types::filter::Filter;
 use ethabi::RawLog;
 use ethabi::FunctionOutputDecoder;
-use ethcore::client::{Client, BlockChainClient, BlockId, CallContract};
+use call_contract::CallContract;
+use ethcore::client::{Client, BlockChainClient, BlockId};
 use ethkey::{Public, public_to_address};
 use hash::keccak;
 use bytes::Bytes;
--- a/secret-store/src/trusted_client.rs
+++ b/secret-store/src/trusted_client.rs
@@ -16,9 +16,10 @@

 use std::sync::{Arc, Weak};
 use bytes::Bytes;
+use call_contract::RegistryInfo;
 use common_types::transaction::{Transaction, SignedTransaction, Action};
 use ethereum_types::Address;
-use ethcore::client::{Client, BlockChainClient, ChainInfo, Nonce, BlockId, RegistryInfo};
+use ethcore::client::{Client, BlockChainClient, ChainInfo, Nonce, BlockId};
 use ethcore::miner::{Miner, MinerService};
 use sync::SyncProvider;
 use helpers::{get_confirmed_block_hash, REQUEST_CONFIRMATIONS_REQUIRED};
--- a/test.sh
+++ b/test.sh
@@ -1,33 +1,12 @@
 #!/bin/sh
 # Running Parity Full Test Suite
+echo "________Running test.sh________"

 FEATURES="json-tests,ci-skip-issue"
 OPTIONS="--release"
 VALIDATE=1
 THREADS=8

-case $1 in
-  --no-json)
-    FEATURES="ipc"
-    shift # past argument=value
-    ;;
-  --no-release)
-    OPTIONS=""
-    shift
-    ;;
-  --no-validate)
-    VALIDATE=0
-    shift
-    ;;
-  --no-run)
-    OPTIONS="--no-run"
-    shift
-    ;;
-  *)
-    # unknown option
-    ;;
-esac
-
 set -e


@@ -57,8 +36,8 @@ cpp_test () {
      cd $DIR
      cmake ..
      make -j $THREADS
-      ./parity-example > example.logs
-      tail --lines 100 example.logs
+      # Note: we don't try to run the example because it tries to sync Kovan, and we don't want
+      #       that to happen on CI
      cd -
      rm -rf $DIR
      ;;
--- a/util/network-devp2p/Cargo.toml
+++ b/util/network-devp2p/Cargo.toml
@@ -34,6 +34,7 @@ serde = "1.0"
 serde_json = "1.0"
 serde_derive = "1.0"
 error-chain = { version = "0.12", default-features = false }
+lru-cache = "0.1"

 [dev-dependencies]
 env_logger = "0.5"
--- a/util/network-devp2p/src/discovery.rs
+++ b/util/network-devp2p/src/discovery.rs
@@ -20,6 +20,7 @@ use std::collections::{HashSet, HashMap, VecDeque};
 use std::collections::hash_map::Entry;
 use std::default::Default;
 use std::time::{Duration, Instant, SystemTime, UNIX_EPOCH};
+use lru_cache::LruCache;
 use hash::keccak;
 use ethereum_types::{H256, H520};
 use rlp::{Rlp, RlpStream};
@@ -53,12 +54,17 @@ const REQUEST_BACKOFF: [Duration; 4] = [
 	Duration::from_secs(64)
 ];

+const NODE_LAST_SEEN_TIMEOUT: Duration = Duration::from_secs(24*60*60);
+
+const OBSERVED_NODES_MAX_SIZE: usize = 10_000;
+
 #[derive(Clone, Debug)]
 pub struct NodeEntry {
 	pub id: NodeId,
 	pub endpoint: NodeEndpoint,
 }

+#[derive(Debug)]
 pub struct BucketEntry {
 	pub address: NodeEntry,
 	pub id_hash: H256,
@@ -89,6 +95,32 @@ struct FindNodeRequest {
 	answered: bool,
 }

+#[derive(Clone, Copy)]
+enum PingReason {
+	Default,
+	FromDiscoveryRequest(NodeId, NodeValidity),
+}
+
+#[derive(Clone, Copy, PartialEq)]
+enum NodeCategory {
+	Bucket,
+	Observed
+}
+
+#[derive(Clone, Copy, PartialEq)]
+enum NodeValidity {
+	Ourselves,
+	ValidNode(NodeCategory),
+	ExpiredNode(NodeCategory),
+	UnknownNode
+}
+
+#[derive(Debug)]
+enum BucketError {
+	Ourselves,
+	NotInTheBucket{node_entry: NodeEntry, bucket_distance: usize},
+}
+
 struct PingRequest {
 	// Time when the request was sent
 	sent_at: Instant,
@@ -99,8 +131,10 @@ struct PingRequest {
 	// The hash Parity used to respond with (until rev 01f825b0e1f1c4c420197b51fc801cbe89284b29)
 	#[deprecated()]
 	deprecated_echo_hash: H256,
+	reason: PingReason
 }

+#[derive(Debug)]
 pub struct NodeBucket {
 	nodes: VecDeque<BucketEntry>, //sorted by last active
 }
@@ -134,6 +168,12 @@ pub struct Discovery<'a> {
 	discovery_id: NodeId,
 	discovery_nodes: HashSet<NodeId>,
 	node_buckets: Vec<NodeBucket>,
+
+	// Sometimes we don't want to add nodes to the NodeTable, but still want to
+	// keep track of them to avoid excessive pinging (happens when an unknown node sends
+	// a discovery request to us -- the node might be on a different net).
+	other_observed_nodes: LruCache<NodeId, (NodeEndpoint, Instant)>,
+
 	in_flight_pings: HashMap<NodeId, PingRequest>,
 	in_flight_find_nodes: HashMap<NodeId, FindNodeRequest>,
 	send_queue: VecDeque<Datagram>,
@@ -160,6 +200,7 @@ impl<'a> Discovery<'a> {
 			discovery_id: NodeId::new(),
 			discovery_nodes: HashSet::new(),
 			node_buckets: (0..ADDRESS_BITS).map(|_| NodeBucket::new()).collect(),
+			other_observed_nodes: LruCache::new(OBSERVED_NODES_MAX_SIZE),
 			in_flight_pings: HashMap::new(),
 			in_flight_find_nodes: HashMap::new(),
 			send_queue: VecDeque::new(),
@@ -178,7 +219,7 @@ impl<'a> Discovery<'a> {
 			if self.node_buckets[dist].nodes.iter().any(|n| n.id_hash == id_hash) {
 				return;
 			}
-			self.try_ping(e);
+			self.try_ping(e, PingReason::Default);
 		}
 	}

@@ -189,41 +230,53 @@ impl<'a> Discovery<'a> {
 		}
 	}

-	fn update_node(&mut self, e: NodeEntry) -> Option<TableUpdates> {
-		trace!(target: "discovery", "Inserting {:?}", &e);
+	fn update_bucket_record(&mut self, e: NodeEntry) -> Result<(), BucketError> {
 		let id_hash = keccak(e.id);
 		let dist = match Discovery::distance(&self.id_hash, &id_hash) {
 			Some(dist) => dist,
 			None => {
 				debug!(target: "discovery", "Attempted to update own entry: {:?}", e);
-				return None;
+				return Err(BucketError::Ourselves);
 			}
 		};
+		let bucket = &mut self.node_buckets[dist];
+		bucket.nodes.iter_mut().find(|n| n.address.id == e.id)
+			.map_or(Err(BucketError::NotInTheBucket{node_entry: e.clone(), bucket_distance: dist}.into()), |entry| {
+				entry.address = e;
+				entry.last_seen = Instant::now();
+				entry.backoff_until = Instant::now();
+				entry.fail_count = 0;
+				Ok(())
+			})
+	}

-		let mut added_map = HashMap::new();
-		let ping = {
-			let bucket = &mut self.node_buckets[dist];
-			let updated = if let Some(node) = bucket.nodes.iter_mut().find(|n| n.address.id == e.id) {
-				node.address = e.clone();
-				node.last_seen = Instant::now();
-				node.backoff_until = Instant::now();
-				node.fail_count = 0;
-				true
-			} else { false };
+	fn update_node(&mut self, e: NodeEntry) -> Option<TableUpdates> {
+		trace!(target: "discovery", "Inserting {:?}", &e);

-			if !updated {
-				added_map.insert(e.id, e.clone());
-				bucket.nodes.push_front(BucketEntry::new(e));
+        match self.update_bucket_record(e) {
+            Ok(()) => None,
+            Err(BucketError::Ourselves) => None,
+            Err(BucketError::NotInTheBucket{node_entry, bucket_distance}) => Some((node_entry, bucket_distance))
+        }.map(|(node_entry, bucket_distance)| {
+			trace!(target: "discovery", "Adding a new node {:?} into our bucket {}", &node_entry, bucket_distance);

+            let mut added = HashMap::with_capacity(1);
+            added.insert(node_entry.id, node_entry.clone());
+
+			let node_to_ping = {
+				let bucket = &mut self.node_buckets[bucket_distance];
+				bucket.nodes.push_front(BucketEntry::new(node_entry));
 				if bucket.nodes.len() > BUCKET_SIZE {
 					select_bucket_ping(bucket.nodes.iter())
-				} else { None }
-			} else { None }
-		};
-		if let Some(node) = ping {
-			self.try_ping(node);
-		}
-		Some(TableUpdates { added: added_map, removed: HashSet::new() })
+				} else {
+					None
+				}
+			};
+			if let Some(node) = node_to_ping {
+				self.try_ping(node, PingReason::Default);
+			};
+            TableUpdates{added, removed: HashSet::new()}
+        })
 	}

 	/// Starts the discovery process at round 0
@@ -244,7 +297,7 @@ impl<'a> Discovery<'a> {
 	fn update_new_nodes(&mut self) {
 		while self.in_flight_pings.len() < MAX_NODES_PING {
 			match self.adding_nodes.pop() {
-				Some(next) => self.try_ping(next),
+				Some(next) => self.try_ping(next, PingReason::Default),
 				None => break,
 			}
 		}
@@ -298,7 +351,7 @@ impl<'a> Discovery<'a> {
 		None // a and b are equal, so log distance is -inf
 	}

-	fn try_ping(&mut self, node: NodeEntry) {
+	fn try_ping(&mut self, node: NodeEntry, reason: PingReason) {
 		if !self.is_allowed(&node) {
 			trace!(target: "discovery", "Node {:?} not allowed", node);
 			return;
@@ -313,7 +366,7 @@ impl<'a> Discovery<'a> {
 		}

 		if self.in_flight_pings.len() < MAX_NODES_PING {
-			self.ping(&node)
+			self.ping(&node, reason)
 				.unwrap_or_else(|e| {
 					warn!(target: "discovery", "Error sending Ping packet: {:?}", e);
 				});
@@ -322,7 +375,7 @@ impl<'a> Discovery<'a> {
 		}
 	}

-	fn ping(&mut self, node: &NodeEntry) -> Result<(), Error> {
+	fn ping(&mut self, node: &NodeEntry, reason: PingReason) -> Result<(), Error> {
 		let mut rlp = RlpStream::new_list(4);
 		rlp.append(&PROTOCOL_VERSION);
 		self.public_endpoint.to_rlp_list(&mut rlp);
@@ -336,6 +389,7 @@ impl<'a> Discovery<'a> {
 			node: node.clone(),
 			echo_hash: hash,
 			deprecated_echo_hash: old_parity_hash,
+			reason: reason
 		});

 		trace!(target: "discovery", "Sent Ping to {:?} ; node_id={:#x}", &node.endpoint, node.id);
@@ -514,7 +568,7 @@ impl<'a> Discovery<'a> {
 						if request.deprecated_echo_hash == echo_hash {
 							trace!(target: "discovery", "Got Pong from an old parity-ethereum version.");
 						}
-						Some(request.node.clone())
+						Some((request.node.clone(), request.reason.clone()))
 					}
 				};

@@ -528,29 +582,98 @@ impl<'a> Discovery<'a> {
 			},
 		};

-		if let Some(node) = expected_node {
-			Ok(self.update_node(node))
+		if let Some((node, ping_reason)) = expected_node {
+			if let PingReason::FromDiscoveryRequest(target, validity) = ping_reason {
+				self.respond_with_discovery(target, &node)?;
+				// kirushik: I would prefer to probe the network id of the remote node here, and add it to the nodes list if it's on "our" net --
+				// but `on_packet` happens synchronously, so doing the full TCP handshake ceremony here is a bad idea.
+				// So instead we just LRU-caching most recently seen nodes to avoid unnecessary pinging
+				match validity {
+					NodeValidity::ValidNode(NodeCategory::Bucket) | NodeValidity::ExpiredNode(NodeCategory::Bucket) => {
+						trace!(target: "discovery", "Updating node {:?} in our Kad buckets", &node);
+						self.update_bucket_record(node).unwrap_or_else(|error| {
+							debug!(target: "discovery", "Error occured when processing ping from a bucket node: {:?}", &error);
+						});
+					},
+					NodeValidity::UnknownNode | NodeValidity::ExpiredNode(NodeCategory::Observed) | NodeValidity::ValidNode(NodeCategory::Observed)=> {
+						trace!(target: "discovery", "Updating node {:?} in the list of other_observed_nodes", &node);
+						self.other_observed_nodes.insert(node.id, (node.endpoint, Instant::now()));
+					},
+					NodeValidity::Ourselves => (),
+				}
+				Ok(None)
+			} else {
+				Ok(self.update_node(node))
+			}
 		} else {
 			debug!(target: "discovery", "Got unexpected Pong from {:?} ; request not found", &from);
 			Ok(None)
 		}
 	}

-	fn on_find_node(&mut self, rlp: &Rlp, _node: &NodeId, from: &SocketAddr) -> Result<Option<TableUpdates>, Error> {
+	fn on_find_node(&mut self, rlp: &Rlp, node_id: &NodeId, from: &SocketAddr) -> Result<Option<TableUpdates>, Error> {
 		trace!(target: "discovery", "Got FindNode from {:?}", &from);
 		let target: NodeId = rlp.val_at(0)?;
 		let timestamp: u64 = rlp.val_at(1)?;
 		self.check_timestamp(timestamp)?;
+
+		let node = NodeEntry {
+			id: node_id.clone(),
+			endpoint: NodeEndpoint {
+				address: *from,
+				udp_port: from.port()
+			}
+		};
+
+		match self.check_validity(&node) {
+			NodeValidity::Ourselves => (), // It makes no sense to respond to the discovery request from ourselves
+			NodeValidity::ValidNode(_) => self.respond_with_discovery(target, &node)?,
+			// Make sure the request source is actually there and responds to pings before actually responding
+			invalidity_reason => self.try_ping(node, PingReason::FromDiscoveryRequest(target, invalidity_reason))
+		}
+		Ok(None)
+	}
+
+	fn check_validity(&mut self, node: &NodeEntry) -> NodeValidity {
+		let id_hash = keccak(node.id);
+		let dist = match Discovery::distance(&self.id_hash, &id_hash) {
+			Some(dist) => dist,
+			None => {
+				debug!(target: "discovery", "Got an incoming discovery request from self: {:?}", node);
+				return NodeValidity::Ourselves;
+			}
+		};
+
+		let bucket = &self.node_buckets[dist];
+		if let Some(known_node) = bucket.nodes.iter().find(|n| n.address.id == node.id) {
+			debug!(target: "discovery", "Found a known node in a bucket when processing discovery: {:?}/{:?}", known_node, node);
+			match ((known_node.address.endpoint == node.endpoint), (known_node.last_seen.elapsed() < NODE_LAST_SEEN_TIMEOUT)) {
+				(true, true) => NodeValidity::ValidNode(NodeCategory::Bucket),
+				(true, false) => NodeValidity::ExpiredNode(NodeCategory::Bucket),
+				_ => NodeValidity::UnknownNode
+			}
+		} else {
+			self.other_observed_nodes.get_mut(&node.id).map_or(NodeValidity::UnknownNode, |(endpoint, observed_at)| {
+				match ((node.endpoint==*endpoint), (observed_at.elapsed() < NODE_LAST_SEEN_TIMEOUT)) {
+					(true, true) => NodeValidity::ValidNode(NodeCategory::Observed),
+					(true, false) => NodeValidity::ExpiredNode(NodeCategory::Observed),
+					_ => NodeValidity::UnknownNode
+				}
+			})
+		}
+	}
+
+	fn respond_with_discovery(&mut self, target: NodeId, node: &NodeEntry) -> Result<(), Error> {
 		let nearest = self.nearest_node_entries(&target);
 		if nearest.is_empty() {
-			return Ok(None);
+			return Ok(());
 		}
 		let mut packets = Discovery::prepare_neighbours_packets(&nearest);
 		for p in packets.drain(..) {
-			self.send_packet(PACKET_NEIGHBOURS, from, &p)?;
+			self.send_packet(PACKET_NEIGHBOURS, &node.endpoint.address, &p)?;
 		}
-		trace!(target: "discovery", "Sent {} Neighbours to {:?}", nearest.len(), &from);
-		Ok(None)
+		trace!(target: "discovery", "Sent {} Neighbours to {:?}", nearest.len(), &node.endpoint);
+		Ok(())
 	}

 	fn prepare_neighbours_packets(nearest: &[NodeEntry]) -> Vec<Bytes> {
@@ -825,7 +948,7 @@ mod tests {
 		}

 		// After 4 discovery rounds, the first one should have learned about the rest.
-		for _round in 0 .. 4 {
+		for _round in 0 .. 5 {
 			discovery_handlers[0].round();

 			let mut continue_loop = true;
@@ -833,9 +956,9 @@ mod tests {
 				continue_loop = false;

 				// Process all queued messages.
-				for i in 0 .. 5 {
-					let src = discovery_handlers[i].public_endpoint.address.clone();
-					while let Some(datagram) = discovery_handlers[i].dequeue_send() {
+				for i in 0 .. 20 {
+					let src = discovery_handlers[i%5].public_endpoint.address.clone();
+					while let Some(datagram) = discovery_handlers[i%5].dequeue_send() {
 						let dest = discovery_handlers.iter_mut()
 							.find(|disc| datagram.address == disc.public_endpoint.address)
 							.unwrap();
@@ -927,14 +1050,14 @@ mod tests {
 		let mut discovery = Discovery { request_backoff: &request_backoff, ..discovery };

 		for _ in 0..2 {
-			discovery.ping(&node_entries[101]).unwrap();
+			discovery.ping(&node_entries[101], PingReason::Default).unwrap();
 			let num_nodes = total_bucket_nodes(&discovery.node_buckets);
 			discovery.check_expired(Instant::now() + PING_TIMEOUT);
 			let removed = num_nodes - total_bucket_nodes(&discovery.node_buckets);
 			assert_eq!(removed, 0);
 		}

-		discovery.ping(&node_entries[101]).unwrap();
+		discovery.ping(&node_entries[101], PingReason::Default).unwrap();
 		let num_nodes = total_bucket_nodes(&discovery.node_buckets);
 		discovery.check_expired(Instant::now() + PING_TIMEOUT);
 		let removed = num_nodes - total_bucket_nodes(&discovery.node_buckets);
@@ -1121,7 +1244,7 @@ mod tests {
 		let mut discovery1 = Discovery::new(&key1, ep1.clone(), IpFilter::default());
 		let mut discovery2 = Discovery::new(&key2, ep2.clone(), IpFilter::default());

-		discovery1.ping(&NodeEntry { id: discovery2.id, endpoint: ep2.clone() }).unwrap();
+		discovery1.ping(&NodeEntry { id: discovery2.id, endpoint: ep2.clone() }, PingReason::Default).unwrap();
 		let ping_data = discovery1.dequeue_send().unwrap();
 		assert!(!discovery1.any_sends_queued());
 		let data = &ping_data.payload[(32 + 65)..];
--- a/util/network-devp2p/src/ip_utils.rs
+++ b/util/network-devp2p/src/ip_utils.rs
@@ -40,7 +40,7 @@ pub trait SocketAddrExt {
 	fn is_documentation_s(&self) -> bool { false }
 	fn is_global_multicast(&self) -> bool { false }
 	fn is_other_multicast(&self) -> bool { false }
-	
+
 	fn is_reserved(&self) -> bool;
 	fn is_usable_public(&self) -> bool;
 	fn is_usable_private(&self) -> bool;
@@ -50,38 +50,38 @@ pub trait SocketAddrExt {

 impl SocketAddrExt for Ipv4Addr {
 	fn is_global_s(&self) -> bool {
-		!self.is_private() && 
-		!self.is_loopback() && 
+		!self.is_private() &&
+		!self.is_loopback() &&
 		!self.is_link_local() &&
-		!self.is_broadcast() && 
+		!self.is_broadcast() &&
 		!self.is_documentation()
 	}

-	// Used for communications between a service provider and its subscribers when using a carrier-grade NAT 
+	// Used for communications between a service provider and its subscribers when using a carrier-grade NAT
 	// see: https://en.wikipedia.org/wiki/Reserved_IP_addresses
 	fn is_shared_space(&self) -> bool {
-		*self >= Ipv4Addr::new(100, 64, 0, 0) && 
+		*self >= Ipv4Addr::new(100, 64, 0, 0) &&
 		*self <= Ipv4Addr::new(100, 127, 255, 255)
 	}

 	// Used for the IANA IPv4 Special Purpose Address Registry
 	// see: https://en.wikipedia.org/wiki/Reserved_IP_addresses
 	fn is_special_purpose(&self) -> bool {
-		*self >= Ipv4Addr::new(192, 0, 0, 0) && 
+		*self >= Ipv4Addr::new(192, 0, 0, 0) &&
 		*self <= Ipv4Addr::new(192, 0, 0, 255)
 	}

 	// Used for testing of inter-network communications between two separate subnets
 	// see: https://en.wikipedia.org/wiki/Reserved_IP_addresses
 	fn is_benchmarking(&self) -> bool {
-		*self >= Ipv4Addr::new(198, 18, 0, 0) && 
+		*self >= Ipv4Addr::new(198, 18, 0, 0) &&
 		*self <= Ipv4Addr::new(198, 19, 255, 255)
 	}

 	// Reserved for future use
 	// see: https://en.wikipedia.org/wiki/Reserved_IP_addresses
 	fn is_future_use(&self) -> bool {
-		*self >= Ipv4Addr::new(240, 0, 0, 0) && 
+		*self >= Ipv4Addr::new(240, 0, 0, 0) &&
 		*self <= Ipv4Addr::new(255, 255, 255, 254)
 	}

@@ -102,7 +102,7 @@ impl SocketAddrExt for Ipv4Addr {
 		!self.is_reserved() &&
 		!self.is_private()
 	}
-	
+
 	fn is_usable_private(&self) -> bool {
 		self.is_private()
 	}
@@ -118,7 +118,7 @@ impl SocketAddrExt for Ipv4Addr {
 impl SocketAddrExt for Ipv6Addr {
 	fn is_global_s(&self) -> bool {
 		self.is_global_multicast() ||
-		(!self.is_loopback() && 
+		(!self.is_loopback() &&
 		!self.is_unique_local_s() &&
 		!self.is_unicast_link_local_s() &&
 		!self.is_documentation_s() &&
@@ -134,7 +134,7 @@ impl SocketAddrExt for Ipv6Addr {
 	fn is_unicast_link_local_s(&self) -> bool {
 		(self.segments()[0] & 0xffc0) == 0xfe80
 	}
-	
+
 	// reserved for documentation (2001:db8::/32).
 	fn is_documentation_s(&self) -> bool {
 		(self.segments()[0] == 0x2001) && (self.segments()[1] == 0xdb8)
@@ -160,7 +160,7 @@ impl SocketAddrExt for Ipv6Addr {
 		!self.is_reserved() &&
 		!self.is_unique_local_s()
 	}
-	
+
 	fn is_usable_private(&self) -> bool {
 		self.is_unique_local_s()
 	}
@@ -194,7 +194,7 @@ impl SocketAddrExt for IpAddr {
 			IpAddr::V6(ref ip) => ip.is_usable_public(),
 		}
 	}
-	
+
 	fn is_usable_private(&self) -> bool {
 		match *self {
 			IpAddr::V4(ref ip) => ip.is_usable_private(),
@@ -308,33 +308,41 @@ pub fn select_public_address(port: u16) -> SocketAddr {

 pub fn map_external_address(local: &NodeEndpoint) -> Option<NodeEndpoint> {
 	if let SocketAddr::V4(ref local_addr) = local.address {
-		match search_gateway_from_timeout(*local_addr.ip(), Duration::new(5, 0)) {
-			Err(ref err) => debug!("Gateway search error: {}", err),
-			Ok(gateway) => {
-				match gateway.get_external_ip() {
-					Err(ref err) => {
-						debug!("IP request error: {}", err);
-					},
-					Ok(external_addr) => {
-						match gateway.add_any_port(PortMappingProtocol::TCP, SocketAddrV4::new(*local_addr.ip(), local_addr.port()), 0, "Parity Node/TCP") {
-							Err(ref err) => {
-								debug!("Port mapping error: {}", err);
-							},
-							Ok(tcp_port) => {
-								match gateway.add_any_port(PortMappingProtocol::UDP, SocketAddrV4::new(*local_addr.ip(), local.udp_port), 0, "Parity Node/UDP") {
-									Err(ref err) => {
-										debug!("Port mapping error: {}", err);
-									},
-									Ok(udp_port) => {
-										return Some(NodeEndpoint { address: SocketAddr::V4(SocketAddrV4::new(external_addr, tcp_port)), udp_port });
-									},
-								}
-							},
-						}
-					},
-				}
-			},
-		}
+		let local_ip = *local_addr.ip();
+		let local_port = local_addr.port();
+		let local_udp_port = local.udp_port;
+
+		let search_gateway_child = ::std::thread::spawn(move || {
+			match search_gateway_from_timeout(local_ip, Duration::new(5, 0)) {
+				Err(ref err) => debug!("Gateway search error: {}", err),
+				Ok(gateway) => {
+					match gateway.get_external_ip() {
+						Err(ref err) => {
+							debug!("IP request error: {}", err);
+						},
+						Ok(external_addr) => {
+							match gateway.add_any_port(PortMappingProtocol::TCP, SocketAddrV4::new(local_ip, local_port), 0, "Parity Node/TCP") {
+								Err(ref err) => {
+									debug!("Port mapping error: {}", err);
+								},
+								Ok(tcp_port) => {
+									match gateway.add_any_port(PortMappingProtocol::UDP, SocketAddrV4::new(local_ip, local_udp_port), 0, "Parity Node/UDP") {
+										Err(ref err) => {
+											debug!("Port mapping error: {}", err);
+										},
+										Ok(udp_port) => {
+											return Some(NodeEndpoint { address: SocketAddr::V4(SocketAddrV4::new(external_addr, tcp_port)), udp_port });
+										},
+									}
+								},
+							}
+						},
+					}
+				},
+			}
+			None
+		});
+		return search_gateway_child.join().ok()?;
 	}
 	None
 }
@@ -425,32 +433,32 @@ fn ipv4_future_use() {
 fn ipv4_usable_public() {
 	assert!(!Ipv4Addr::new(0,0,0,0).is_usable_public()); // unspecified
 	assert!(Ipv4Addr::new(0,0,0,1).is_usable_public());
-	
+
 	assert!(Ipv4Addr::new(9,255,255,255).is_usable_public());
 	assert!(!Ipv4Addr::new(10,0,0,0).is_usable_public()); // private intra-network
 	assert!(!Ipv4Addr::new(10,255,255,255).is_usable_public()); // private intra-network
 	assert!(Ipv4Addr::new(11,0,0,0).is_usable_public());
-	
+
 	assert!(Ipv4Addr::new(100, 63, 255, 255).is_usable_public());
-	assert!(!Ipv4Addr::new(100, 64, 0, 0).is_usable_public()); // shared space 
+	assert!(!Ipv4Addr::new(100, 64, 0, 0).is_usable_public()); // shared space
 	assert!(!Ipv4Addr::new(100, 127, 255, 255).is_usable_public()); // shared space
 	assert!(Ipv4Addr::new(100, 128, 0, 0).is_usable_public());
-	
+
 	assert!(Ipv4Addr::new(126,255,255,255).is_usable_public());
 	assert!(!Ipv4Addr::new(127,0,0,0).is_usable_public()); // loopback
 	assert!(!Ipv4Addr::new(127,255,255,255).is_usable_public()); // loopback
 	assert!(Ipv4Addr::new(128,0,0,0).is_usable_public());
-	
+
 	assert!(Ipv4Addr::new(169,253,255,255).is_usable_public());
 	assert!(!Ipv4Addr::new(169,254,0,0).is_usable_public()); // link-local
 	assert!(!Ipv4Addr::new(169,254,255,255).is_usable_public()); // link-local
 	assert!(Ipv4Addr::new(169,255,0,0).is_usable_public());
-	
+
 	assert!(Ipv4Addr::new(172,15,255,255).is_usable_public());
 	assert!(!Ipv4Addr::new(172,16,0,0).is_usable_public()); // private intra-network
 	assert!(!Ipv4Addr::new(172,31,255,255).is_usable_public()); // private intra-network
 	assert!(Ipv4Addr::new(172,32,255,255).is_usable_public());
-	
+
 	assert!(Ipv4Addr::new(191,255,255,255).is_usable_public());
 	assert!(!Ipv4Addr::new(192,0,0,0).is_usable_public()); // special purpose
 	assert!(!Ipv4Addr::new(192,0,0,255).is_usable_public()); // special purpose
@@ -458,19 +466,19 @@ fn ipv4_usable_public() {

 	assert!(Ipv4Addr::new(192,0,1,255).is_usable_public());
 	assert!(!Ipv4Addr::new(192,0,2,0).is_usable_public()); // documentation
-	assert!(!Ipv4Addr::new(192,0,2,255).is_usable_public()); // documentation 
+	assert!(!Ipv4Addr::new(192,0,2,255).is_usable_public()); // documentation
 	assert!(Ipv4Addr::new(192,0,3,0).is_usable_public());
-	
+
 	assert!(Ipv4Addr::new(192,167,255,255).is_usable_public());
 	assert!(!Ipv4Addr::new(192,168,0,0).is_usable_public()); // private intra-network
 	assert!(!Ipv4Addr::new(192,168,255,255).is_usable_public()); // private intra-network
 	assert!(Ipv4Addr::new(192,169,0,0).is_usable_public());
-	
+
 	assert!(Ipv4Addr::new(198,17,255,255).is_usable_public());
 	assert!(!Ipv4Addr::new(198,18,0,0).is_usable_public()); // benchmarking
 	assert!(!Ipv4Addr::new(198,19,255,255).is_usable_public()); // benchmarking
 	assert!(Ipv4Addr::new(198,20,0,0).is_usable_public());
-	
+
 	assert!(Ipv4Addr::new(198,51,99,255).is_usable_public());
 	assert!(!Ipv4Addr::new(198,51,100,0).is_usable_public()); // documentation
 	assert!(!Ipv4Addr::new(198,51,100,255).is_usable_public()); // documentation
@@ -485,7 +493,7 @@ fn ipv4_usable_public() {
 	assert!(!Ipv4Addr::new(224,0,0,0).is_usable_public()); // multicast
 	assert!(!Ipv4Addr::new(239, 255, 255, 255).is_usable_public()); // multicast
 	assert!(!Ipv4Addr::new(240, 0, 0, 0).is_usable_public()); // future use
-	assert!(!Ipv4Addr::new(255, 255, 255, 254).is_usable_public()); // future use 
+	assert!(!Ipv4Addr::new(255, 255, 255, 254).is_usable_public()); // future use
 	assert!(!Ipv4Addr::new(255, 255, 255, 255).is_usable_public()); // limited broadcast
 }

@@ -495,12 +503,12 @@ fn ipv4_usable_private() {
 	assert!(Ipv4Addr::new(10,0,0,0).is_usable_private()); // private intra-network
 	assert!(Ipv4Addr::new(10,255,255,255).is_usable_private()); // private intra-network
 	assert!(!Ipv4Addr::new(11,0,0,0).is_usable_private());
-	
+
 	assert!(!Ipv4Addr::new(172,15,255,255).is_usable_private());
 	assert!(Ipv4Addr::new(172,16,0,0).is_usable_private()); // private intra-network
 	assert!(Ipv4Addr::new(172,31,255,255).is_usable_private()); // private intra-network
 	assert!(!Ipv4Addr::new(172,32,255,255).is_usable_private());
-	
+
 	assert!(!Ipv4Addr::new(192,167,255,255).is_usable_private());
 	assert!(Ipv4Addr::new(192,168,0,0).is_usable_private()); // private intra-network
 	assert!(Ipv4Addr::new(192,168,255,255).is_usable_private()); // private intra-network
--- a/util/network-devp2p/src/lib.rs
+++ b/util/network-devp2p/src/lib.rs
@@ -84,6 +84,7 @@ extern crate keccak_hash as hash;
 extern crate serde;
 extern crate serde_json;
 extern crate parity_snappy as snappy;
+extern crate lru_cache;

 #[macro_use]
 extern crate error_chain;
--- a/util/version/Cargo.toml
+++ b/util/version/Cargo.toml
@@ -3,22 +3,22 @@
 [package]
 name = "parity-version"
 # NOTE: this value is used for Parity Ethereum version string (via env CARGO_PKG_VERSION)
-version = "2.3.0"
+version = "2.3.3"
 authors = ["Parity Technologies <admin@parity.io>"]
 build = "build.rs"

 [package.metadata]
 # This versions track. Should be changed to `stable` or `beta` when on respective branches.
 # Used by auto-updater and for Parity version string.
-track = "nightly"
+track = "beta"

 # Network specific settings, used ONLY by auto-updater.
 # Latest supported fork blocks.
 # Indicates a critical release in this track (i.e. consensus issue).
 [package.metadata.networks]
-foundation = { forkBlock = 4370000, critical = false }
-ropsten = { forkBlock = 4230000, critical = false }
-kovan = { forkBlock = 6600000, critical = false }
+foundation = { forkBlock = 7280000, critical = false }
+ropsten = { forkBlock = 4939394, critical = false }
+kovan = { forkBlock = 10255201, critical = false }

 [dependencies]
 parity-bytes = "0.1"
Author	SHA1	Message	Date
Afri Schoedon	3b9b1a8f14	Backports for Beta 2.3.3 (#10333 ) * version: bump beta to 2.3.3 * import rpc transactions sequentially (#10051) * import rpc transactions sequentially * use impl trait in argument position, renamed ProspectiveDispatcher to WithPostSign * grouped imports * integrates PostSign with ProspectiveSigner * fix spaces, removed unnecessary type cast and duplicate polling * clean up code style * Apply suggestions from code review * Fix Windows build (#10284) * Don't run the CPP example on CI (#10285) * Don't run the CPP example on CI * Add comment * CI optimizations (#10297) * CI optimizations * fix stripping * new dockerfile * no need n submodule upd * review * moved dockerfile * it becomes large * onchain update depends on s3 * fix dependency * fix cache status * fix cache status * new cache status * fix publish job (#10317) * fix publish job * dashes and colonels * Add Statetest support for Constantinople Fix (#10323) * Update Ethereum tests repo to v6.0.0-beta.3 tag * Add spec for St.Peter's / ConstantinopleFix statetests * Properly handle check_epoch_end_signal errors (#10015) * Make check_epoch_end_signal to only use immutable data * Move check_epoch_end_signals out of commit_block * Make check_epoch_end_signals possible to fail * Actually return the error from check_epoch_end_signals * Remove a clone * Fix import error * cargo: fix compilation * fix(add helper for timestamp overflows) (#10330) * fix(add helper timestamp overflows) * fix(simplify code) * fix(make helper private) * Remove CallContract and RegistryInfo re-exports from `ethcore/client` (#10205) * Remove re-export of `CallContract` and `RegistryInfo` from `ethcore/client` * Remove CallContract and RegistryInfo re-exports again This was missed while fixing merge conflicts * fix(docker): fix not receives SIGINT (#10059) * fix(docker): fix not receives SIGINT * fix: update with reviews * update with review * update * update * snap: official image / test (#10168) * official image / test * fix / test * bit more necromancy * fix paths * add source bin/df /test * add source bin/df /test2 * something w paths /test * something w paths /test * add source-type /test * show paths /test * copy plugin /test * plugin -> nil * install rhash * no questions while installing rhash * publish snap only for release * Don't add discovery initiators to the node table (#10305) * Don't add discovery initiators to the node table * Use enums for tracking state of the nodes in discovery * Dont try to ping ourselves * Fix minor nits * Update timeouts when observing an outdated node * Extracted update_bucket_record from update_node * Fixed typo * Fix two final nits from @todr * Extract CallContract and RegistryInfo traits into their own crate (#10178) * Create call-contract crate * Add license * First attempt at using extracted CallContract trait * Remove unneeded `extern crate` calls * Move RegistryInfo trait into call-contract crate * Move service-transaction-checker from ethcore to ethcore-miner * Update Cargo.lock file * Re-export call_contract * Merge CallContract and RegistryInfo imports * Remove commented code * Add documentation to call_contract crate * Add TODO for removal of re-exports * Update call-contract crate description Co-Authored-By: HCastano <HCastano@users.noreply.github.com> * Rename call-contract crate to ethcore-call-contract * Remove CallContract and RegistryInfo re-exports from `ethcore/client` (#10205) * Remove re-export of `CallContract` and `RegistryInfo` from `ethcore/client` * Remove CallContract and RegistryInfo re-exports again This was missed while fixing merge conflicts * fixed: types::transaction::SignedTransaction; (#10229) * fix daemonize dependency * fix build * change docker image based on debian instead of ubuntu due to the chan… (#10336) * change docker image based on debian instead of ubuntu due to the changes of the build container * role back docker build image and docker deploy image to ubuntu:xenial based (#10338) * perform stripping during build (#10208) * perform stripping during build (#10208) * perform stripping during build * var RUSTFLAGS	2019-02-13 11:00:41 +01:00
Kirill Pimenov	a6c4b17303	Additional error for invalid gas (#10327 ) (#10328 ) * Tag sensible place (ECHECH) * Additional overflows checks.	2019-02-12 10:52:55 +01:00
Pierre Krieger	678138f097	Backport #10285 to beta (#10286 ) * Don't run the CPP example on CI * Add comment	2019-02-03 14:02:40 +01:00
Kirill Pimenov	b4e4038fb5	Additional tests for uint deserialization. (#10280 )	2019-02-03 12:50:38 +01:00
Afri Schoedon	7a8e5976bc	version: bump beta to 2.3.2 (#10283 )	2019-02-03 12:44:26 +01:00
Afri Schoedon	938c8d8bcd	Macos heapsize force jemalloc (#10234 ) (#10259 ) * Switch to non prefixed malloc_size_of on macos * Fix * Testing darwin build * Fix import * conflict * switch heapsize deps commit * switch heapsize commit * Rename branch * Restore gitlab ci to origin * test for mac * mac tests? * Switch of macos CI tests.	2019-01-30 12:02:02 +01:00
Afri Schoedon	3aefa2b960	Beta Backports 2.3.1 (#10225 ) * version: bump beta to 2.3.1 * Fix _cannot recursively call into `Core`_ issue (#10144) * Change igd to github:maufl/rust-igd * Run `igd::search_gateway_from_timeout` from own thread * Update for Android cross-compilation. (#10180) * build-unix update * .gitlab-ci update * Update build-unix.sh add android postprocessing * path to android lib libparity.so * fix path to libparity * add android lib to artifacts * Run all `igd` methods in its own thread (#10195) * Cancel Constantinople HF on POA Core (#10198) * Add EIP-1283 disable transition (#10214) * Enable St-Peters-Fork ("Constantinople Fix") (#10223) * ethcore: disable eip-1283 on kovan block 10255201 * ethcore: disable eip-1283 on ropsten block 4939394 * ethcore: enable st-peters-fork on mainnet block 7280000 * ethcore: fix kovan chain spec * version: update fork blocks * ethcore: disable eip-1283 on sokol block 7026400	2019-01-22 12:33:45 +01:00
Afri Schoedon	10657d96c4	backports for 2.3.0 beta (#10164 ) * version: mark 2.3 track beta * version: mark update critical on all networks * Ping nodes from discovery (#10167) * Fix _cannot recursively call into `Core`_ issue (#10144) * Change igd to github:maufl/rust-igd * Run `igd::search_gateway_from_timeout` from own thread * Handle the case for contract creation on an empty but exist account with storage items (#10065) * Add is_base_storage_root_unchanged * Fix compile, use a shortcut for check, and remove ignored tests * Add a warn! * Update ethereum/tests to v6.0.0-beta.2 * grumble: use {:#x} instead of 0x{:x} Co-Authored-By: sorpaas <accounts@that.world> * version: bump fork blocks for kovan and foundation (#10186) * pull constantinople on ethereum network (#10189) * ethcore: pull constantinople on ethereum network * version: mark update as critical * ethcore: remove constantinople alltogether from chain spec * version: revert fork block for ethereum	2019-01-15 23:05:56 +01:00