From c754a028e036e296ecf47c3377d34bb1517c3ecb Mon Sep 17 00:00:00 2001
From: Afri Schoedon <5chdn@users.noreply.github.com>
Date: Wed, 25 Jul 2018 13:55:43 +0200
Subject: [PATCH] Backports to 1.11.8-stable (#9144)

* parity-version: bump stable to 1.11.8

* ci: update version strings for snaps

* Be more graceful on Aura difficulty validation (#9164)

* Be more graceful on Aura difficulty validation

* test: rejects_step_backwards

* test: proposer_switching

* test: rejects_future_block

* test: reports_skipped

* test: verify_empty_seal_steps

* parity: fix UserDefaults json parser (#9189)

* parity: fix UserDefaults json parser

* parity: use serde_derive for UserDefaults

* parity: support deserialization of old UserDefault json format

* parity: make UserDefaults serde backwards compatible

* parity: tabify indentation in UserDefaults

* Fix bugfix hard fork logic (#9138)

* Fix bugfix hard fork logic

* Remove dustProtectionTransition from bugfix category

EIP-168 is not enabled by default

* Remove unnecessary 'static

* Disable per-sender limit for local transactions. (#9148)

* Disable per-sender limit for local transactions.

* Add a missing new line.

* rpc: fix is_major_importing sync state condition (#9112)

* rpc: fix is_major_importing sync state condition

* rpc: fix informant printout when waiting for peers

* fix verification in ethcore-sync collect_blocks (#9135)

* docker: update hub dockerfile (#9173)

* update Dockerfile for hub

update to Ubuntu Xenial 16.04
fix cmake version

* docker: fix tab indentation in hub dockerfile

* ethcore: update to parity-wasm 0.31

* rpc: fix broken merge
---
 Cargo.lock                                 | 309 +++++++++++----------
 Cargo.toml                                 |   2 +-
 docker/hub/Dockerfile                      |   4 +-
 ethcore/src/engines/authority_round/mod.rs |  46 ++-
 ethcore/src/miner/miner.rs                 |  10 +-
 ethcore/src/spec/spec.rs                   |  24 +-
 ethcore/wasm/Cargo.toml                    |   4 +-
 ethcore/wasm/src/parser.rs                 |   2 +-
 mac/Parity.pkgproj                         |   2 +-
 miner/src/pool/scoring.rs                  |   4 +
 miner/src/pool/tests/mod.rs                |  11 +-
 nsis/installer.nsi                         |   2 +-
 parity/informant.rs                        |  14 +-
 parity/params.rs                           |   2 +-
 parity/run.rs                              |   4 +-
 parity/user_defaults.rs                    | 189 +++++++------
 rpc/src/lib.rs                             |   2 +-
 rpc/src/v1/helpers/block_import.rs         |  13 +-
 scripts/gitlab-build.sh                    |   2 +-
 transaction-pool/src/pool.rs               |   1 +
 transaction-pool/src/scoring.rs            |   6 +
 transaction-pool/src/tests/helpers.rs      |   4 +
 transaction-pool/src/tests/mod.rs          |  27 ++
 transaction-pool/src/transactions.rs       |   2 +-
 util/version/Cargo.toml                    |   2 +-
 25 files changed, 405 insertions(+), 283 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 9ef5b9f99..ba69118c6 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,6 +1,6 @@
 [[package]]
 name = "adler32"
-version = "1.0.2"
+version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -75,7 +75,7 @@ name = "backtrace-sys"
 version = "0.1.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -109,7 +109,7 @@ dependencies = [
 
 [[package]]
 name = "bigint"
-version = "4.3.0"
+version = "4.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -123,7 +123,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -198,7 +198,7 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.0.10"
+version = "1.0.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "rayon 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -242,6 +242,14 @@ dependencies = [
  "vec_map 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "cmake"
+version = "0.1.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "cc 1.0.17 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "common-types"
 version = "0.1.0"
@@ -266,7 +274,7 @@ dependencies = [
 
 [[package]]
 name = "crc"
-version = "1.7.0"
+version = "1.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "build_const 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -395,7 +403,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
  "strsim 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -446,7 +454,7 @@ version = "0.5.7"
 source = "git+https://github.com/paritytech/rust-secp256k1#db81cfea59014b4d176f10f86ed52e1a130b6822"
 dependencies = [
  "arrayvec 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "cc 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -458,7 +466,7 @@ dependencies = [
  "error-chain 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "tiny-keccak 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -489,7 +497,7 @@ dependencies = [
  "keccak-hash 0.1.0",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "memmap 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "primal 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempdir 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -502,7 +510,7 @@ dependencies = [
  "crunchy 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethereum-types-serialize 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "fixed-hash 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "tiny-keccak 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -552,7 +560,7 @@ dependencies = [
  "num 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-machine 0.1.0",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "patricia-trie 0.1.0",
  "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rayon 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -609,7 +617,7 @@ dependencies = [
  "crossbeam 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio 0.6.14 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "slab 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -635,15 +643,15 @@ dependencies = [
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "memory-cache 0.1.0",
  "memorydb 0.1.1",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "patricia-trie 0.1.0",
  "plain_hasher 0.1.0",
  "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rlp 0.2.1",
  "rlp_derive 0.1.0",
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
- "smallvec 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "stats 0.1.0",
  "tempdir 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "triehash 0.1.0",
@@ -660,7 +668,7 @@ dependencies = [
  "env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -685,7 +693,7 @@ dependencies = [
  "linked-hash-map 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-reactor 0.1.0",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "price-info 1.11.0",
  "rlp 0.2.1",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -731,13 +739,13 @@ dependencies = [
  "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio 0.6.14 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "path 0.1.0",
  "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rlp 0.2.1",
  "rust-crypto 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "slab 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -768,13 +776,13 @@ dependencies = [
  "futures 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
  "keccak-hash 0.1.0",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "patricia-trie 0.1.0",
  "rand 0.3.20 (registry+https://github.com/rust-lang/crates.io-index)",
  "rlp 0.2.1",
  "rlp_derive 0.1.0",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "tiny-keccak 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -805,9 +813,9 @@ dependencies = [
  "kvdb-rocksdb 0.1.0",
  "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempdir 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -850,7 +858,7 @@ dependencies = [
  "jsonrpc-tcp-server 8.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11)",
  "keccak-hash 0.1.0",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-core 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-io 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -877,13 +885,13 @@ dependencies = [
  "kvdb-memorydb 0.1.0",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "macros 0.1.0",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "plain_hasher 0.1.0",
  "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rlp 0.2.1",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "smallvec 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "trace-time 0.1.0",
  "triehash 0.1.0",
 ]
@@ -913,7 +921,7 @@ dependencies = [
  "ethereum-types-serialize 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "fixed-hash 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc_version 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "uint 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -922,7 +930,7 @@ name = "ethereum-types-serialize"
 version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -931,7 +939,7 @@ version = "0.1.0"
 dependencies = [
  "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -964,7 +972,7 @@ dependencies = [
  "panic_hook 0.1.0",
  "parity-wordlist 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
  "threadpool 1.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -982,14 +990,14 @@ dependencies = [
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "matches 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-wordlist 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rust-crypto 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "smallvec 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "subtle 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempdir 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1005,9 +1013,9 @@ dependencies = [
  "ethstore 0.2.0",
  "num_cpus 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "panic_hook 0.1.0",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempdir 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1023,7 +1031,7 @@ dependencies = [
  "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "memory-cache 0.1.0",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "vm 0.1.0",
 ]
@@ -1042,7 +1050,7 @@ dependencies = [
  "panic_hook 0.1.0",
  "pretty_assertions 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempdir 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "vm 0.1.0",
@@ -1096,7 +1104,7 @@ version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
- "miniz_oxide_c_api 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "miniz_oxide_c_api 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1181,7 +1189,7 @@ dependencies = [
  "hidapi 0.3.1 (git+https://github.com/paritytech/hidapi-rs)",
  "libusb 0.3.0 (git+https://github.com/paritytech/libusb-rs)",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "protobuf 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "trezor-sys 1.0.0 (git+https://github.com/paritytech/trezor-sys)",
@@ -1221,7 +1229,7 @@ name = "hidapi"
 version = "0.3.1"
 source = "git+https://github.com/paritytech/hidapi-rs#d4d323767d6f27cf5a3d73fbae0b0f2134d579bf"
 dependencies = [
- "cc 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1348,7 +1356,7 @@ dependencies = [
  "kvdb-memorydb 0.1.0",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "memorydb 0.1.1",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "plain_hasher 0.1.0",
  "rlp 0.2.1",
  "util-error 0.1.0",
@@ -1357,11 +1365,11 @@ dependencies = [
 [[package]]
 name = "jsonrpc-core"
 version = "8.0.1"
-source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11#c8e6336798be4444953def351099078617d40efd"
+source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11#6b972b5fd34ada4a7de6aed1a8c92475a907732d"
 dependencies = [
  "futures 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1369,7 +1377,7 @@ dependencies = [
 [[package]]
 name = "jsonrpc-http-server"
 version = "8.0.0"
-source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11#c8e6336798be4444953def351099078617d40efd"
+source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11#6b972b5fd34ada4a7de6aed1a8c92475a907732d"
 dependencies = [
  "hyper 0.11.24 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-core 8.0.1 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11)",
@@ -1382,7 +1390,7 @@ dependencies = [
 [[package]]
 name = "jsonrpc-ipc-server"
 version = "8.0.0"
-source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11#c8e6336798be4444953def351099078617d40efd"
+source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11#6b972b5fd34ada4a7de6aed1a8c92475a907732d"
 dependencies = [
  "jsonrpc-core 8.0.1 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11)",
  "jsonrpc-server-utils 8.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11)",
@@ -1394,27 +1402,27 @@ dependencies = [
 [[package]]
 name = "jsonrpc-macros"
 version = "8.0.0"
-source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11#c8e6336798be4444953def351099078617d40efd"
+source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11#6b972b5fd34ada4a7de6aed1a8c92475a907732d"
 dependencies = [
  "jsonrpc-core 8.0.1 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11)",
  "jsonrpc-pubsub 8.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11)",
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "jsonrpc-pubsub"
 version = "8.0.0"
-source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11#c8e6336798be4444953def351099078617d40efd"
+source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11#6b972b5fd34ada4a7de6aed1a8c92475a907732d"
 dependencies = [
  "jsonrpc-core 8.0.1 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11)",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "jsonrpc-server-utils"
 version = "8.0.0"
-source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11#c8e6336798be4444953def351099078617d40efd"
+source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11#6b972b5fd34ada4a7de6aed1a8c92475a907732d"
 dependencies = [
  "bytes 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "globset 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1427,25 +1435,25 @@ dependencies = [
 [[package]]
 name = "jsonrpc-tcp-server"
 version = "8.0.0"
-source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11#c8e6336798be4444953def351099078617d40efd"
+source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11#6b972b5fd34ada4a7de6aed1a8c92475a907732d"
 dependencies = [
  "jsonrpc-core 8.0.1 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11)",
  "jsonrpc-server-utils 8.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11)",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-service 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "jsonrpc-ws-server"
 version = "8.0.0"
-source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11#c8e6336798be4444953def351099078617d40efd"
+source = "git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11#6b972b5fd34ada4a7de6aed1a8c92475a907732d"
 dependencies = [
  "error-chain 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-core 8.0.1 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11)",
  "jsonrpc-server-utils 8.0.0 (git+https://github.com/paritytech/jsonrpc.git?branch=parity-1.11)",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "slab 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ws 0.7.5 (git+https://github.com/tomusdrw/ws-rs)",
 ]
@@ -1454,7 +1462,7 @@ dependencies = [
 name = "keccak-hash"
 version = "0.1.0"
 dependencies = [
- "cc 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempdir 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "tiny-keccak 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1483,7 +1491,7 @@ name = "kvdb-memorydb"
 version = "0.1.0"
 dependencies = [
  "kvdb 0.1.0",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1496,7 +1504,7 @@ dependencies = [
  "kvdb 0.1.0",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "rocksdb 0.4.5 (git+https://github.com/paritytech/rust-rocksdb)",
  "tempdir 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1542,7 +1550,7 @@ name = "libusb-sys"
 version = "0.2.4"
 source = "git+https://github.com/paritytech/libusb-sys#14bdb698003731b6344a79e1d814704e44363e7c"
 dependencies = [
- "cc 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1566,6 +1574,15 @@ dependencies = [
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "lock_api"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "owning_ref 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "scopeguard 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "log"
 version = "0.3.9"
@@ -1642,7 +1659,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 name = "memorydb"
 version = "0.1.1"
 dependencies = [
- "bigint 4.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bigint 4.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "elastic-array 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "hashdb 0.1.1",
@@ -1685,22 +1702,22 @@ dependencies = [
 
 [[package]]
 name = "miniz_oxide"
-version = "0.1.2"
+version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "adler32 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "adler32 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "miniz_oxide_c_api"
-version = "0.1.2"
+version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "cc 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "crc 1.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crc 1.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
- "miniz_oxide 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "miniz_oxide 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1818,7 +1835,7 @@ dependencies = [
  "kvdb-memorydb 0.1.0",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "lru-cache 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempdir 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1831,8 +1848,8 @@ dependencies = [
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "ntp 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-reactor 0.1.0",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1873,7 +1890,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "num-integer 0.1.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.3.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1963,7 +1980,7 @@ dependencies = [
 
 [[package]]
 name = "parity"
-version = "1.11.7"
+version = "1.11.8"
 dependencies = [
  "ansi_term 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "atty 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2014,9 +2031,9 @@ dependencies = [
  "parity-rpc 1.11.0",
  "parity-rpc-client 1.4.0",
  "parity-updater 1.11.0",
- "parity-version 1.11.7",
+ "parity-version 1.11.8",
  "parity-whisper 0.1.0",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "path 0.1.0",
  "pretty_assertions 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2027,7 +2044,7 @@ dependencies = [
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc_version 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempdir 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2062,16 +2079,16 @@ dependencies = [
  "parity-reactor 0.1.0",
  "parity-ui 1.11.0",
  "parity-ui-deprecation 1.10.0",
- "parity-version 1.11.7",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parity-version 1.11.8",
+ "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "registrar 0.0.1",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicase 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "zip 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "zip 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2107,7 +2124,7 @@ dependencies = [
  "mime 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "mime_guess 2.0.0-alpha.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-reactor 0.1.0",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "registrar 0.0.1",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2140,7 +2157,7 @@ dependencies = [
  "kvdb-memorydb 0.1.0",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "rlp 0.2.1",
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -2204,8 +2221,8 @@ dependencies = [
  "order-stat 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-reactor 0.1.0",
  "parity-updater 1.11.0",
- "parity-version 1.11.7",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parity-version 1.11.8",
+ "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "patricia-trie 0.1.0",
  "pretty_assertions 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2213,7 +2230,7 @@ dependencies = [
  "rust-crypto 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "stats 0.1.0",
@@ -2236,8 +2253,8 @@ dependencies = [
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "matches 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-rpc 1.11.0",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -2325,8 +2342,8 @@ dependencies = [
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "matches 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-hash-fetch 1.11.0",
- "parity-version 1.11.7",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parity-version 1.11.8",
+ "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "path 0.1.0",
  "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2336,7 +2353,7 @@ dependencies = [
 
 [[package]]
 name = "parity-version"
-version = "1.11.7"
+version = "1.11.8"
 dependencies = [
  "ethcore-bytes 0.1.0",
  "rlp 0.2.1",
@@ -2348,12 +2365,10 @@ dependencies = [
 
 [[package]]
 name = "parity-wasm"
-version = "0.27.5"
+version = "0.31.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2373,15 +2388,15 @@ dependencies = [
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "mem 0.1.0",
  "ordered-float 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "ring 0.12.1 (git+https://github.com/paritytech/ring)",
  "rlp 0.2.1",
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "slab 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "smallvec 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "tiny-keccak 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2397,13 +2412,22 @@ dependencies = [
 
 [[package]]
 name = "parking_lot"
-version = "0.5.4"
+version = "0.5.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "owning_ref 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot_core 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "parking_lot"
+version = "0.6.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "lock_api 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot_core 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "parking_lot_core"
 version = "0.2.6"
@@ -2412,7 +2436,7 @@ dependencies = [
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.20 (registry+https://github.com/rust-lang/crates.io-index)",
- "smallvec 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2488,7 +2512,7 @@ dependencies = [
 
 [[package]]
 name = "podio"
-version = "0.1.5"
+version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -2509,7 +2533,7 @@ dependencies = [
  "futures-cpupool 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper 0.11.24 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -2552,7 +2576,7 @@ dependencies = [
  "hamming 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "primal-bit 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "primal-estimate 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "smallvec 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2585,7 +2609,7 @@ dependencies = [
  "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "ethjson 0.1.0",
  "rustc-hex 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "vm 0.1.0",
@@ -2594,16 +2618,12 @@ dependencies = [
 
 [[package]]
 name = "pwasm-utils"
-version = "0.1.5"
+version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "clap 2.29.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "glob 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "parity-wasm 0.27.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parity-wasm 0.31.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2671,7 +2691,7 @@ dependencies = [
  "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rand 0.3.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2726,9 +2746,9 @@ dependencies = [
 [[package]]
 name = "ring"
 version = "0.12.1"
-source = "git+https://github.com/paritytech/ring#b98d7f586c0467d68e9946a5f47b4a04b9a86b4a"
+source = "git+https://github.com/paritytech/ring#bae475e9f7ea7dd4ae671bef4b576089a9b06731"
 dependencies = [
- "cc 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "rayon 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2779,7 +2799,7 @@ name = "rocksdb-sys"
 version = "0.3.0"
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 dependencies = [
- "cc 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc 1.0.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "local-encoding 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "snappy-sys 0.1.0 (git+https://github.com/paritytech/rust-snappy)",
@@ -2800,7 +2820,7 @@ dependencies = [
 name = "rpc-cli"
 version = "1.4.0"
 dependencies = [
- "bigint 4.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bigint 4.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-rpc 1.11.0",
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@@ -2899,7 +2919,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "serde"
-version = "1.0.37"
+version = "1.0.70"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -2927,7 +2947,7 @@ name = "serde_ignored"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2938,7 +2958,7 @@ dependencies = [
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  "num-traits 0.1.43 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2996,7 +3016,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "smallvec"
-version = "0.4.3"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
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@@ -3005,7 +3025,7 @@ dependencies = [
 [[package]]
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 version = "0.1.0"
-source = "git+https://github.com/paritytech/rust-snappy#40ac9a0d9fd613e7f38df800a11a589b7296da73"
+source = "git+https://github.com/paritytech/rust-snappy#798408ffef8f86dd51481673aca10f5348d7491b"
 dependencies = [
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@@ -3014,9 +3034,9 @@ dependencies = [
 [[package]]
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 version = "0.1.0"
-source = "git+https://github.com/paritytech/rust-snappy#40ac9a0d9fd613e7f38df800a11a589b7296da73"
+source = "git+https://github.com/paritytech/rust-snappy#798408ffef8f86dd51481673aca10f5348d7491b"
 dependencies = [
- "cc 1.0.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cmake 0.1.31 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -3414,7 +3434,7 @@ name = "toml"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -3431,7 +3451,7 @@ dependencies = [
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  "ethereum-types 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "smallvec 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "smallvec 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "trace-time 0.1.0",
 ]
 
@@ -3635,21 +3655,21 @@ dependencies = [
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  "libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "parity-wasm 0.27.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "pwasm-utils 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parity-wasm 0.31.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pwasm-utils 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "vm 0.1.0",
- "wasmi 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "wasmi 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "wasmi"
-version = "0.2.0"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
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- "parity-wasm 0.27.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parity-wasm 0.31.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -3684,7 +3704,7 @@ dependencies = [
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "panic_hook 0.1.0",
  "parity-whisper 0.1.0",
- "serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -3765,17 +3785,17 @@ dependencies = [
 
 [[package]]
 name = "zip"
-version = "0.3.1"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
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- "podio 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "podio 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.38 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
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 "checksum app_dirs 1.2.1 (git+https://github.com/paritytech/app-dirs-rs)" = "<none>"
@@ -3789,7 +3809,7 @@ dependencies = [
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-"checksum bigint 4.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b4a6d961f23ce43ce7391b994c78174691e41274a5c48a1cda69caf04af173e1"
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@@ -3801,12 +3821,13 @@ dependencies = [
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@@ -3882,6 +3903,7 @@ dependencies = [
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 "checksum local-encoding 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e1ceb20f39ff7ae42f3ff9795f3986b1daad821caaa1e1732a0944103a5a1a66"
+"checksum lock_api 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "949826a5ccf18c1b3a7c3d57692778d21768b79e46eb9dd07bfc4c2160036c54"
 "checksum log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "e19e8d5c34a3e0e2223db8e060f9e8264aeeb5c5fc64a4ee9965c062211c024b"
 "checksum log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "89f010e843f2b1a31dbd316b3b8d443758bc634bed37aabade59c686d644e0a2"
 "checksum lru-cache 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4d06ff7ff06f729ce5f4e227876cb88d10bc59cd4ae1e09fbb2bde15c850dc21"
@@ -3892,8 +3914,8 @@ dependencies = [
 "checksum memory_units 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "71d96e3f3c0b6325d8ccd83c33b28acb183edcb6c67938ba104ec546854b0882"
 "checksum mime 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "e3d709ffbb330e1566dc2f2a3c9b58a5ad4a381f740b810cd305dc3f089bc160"
 "checksum mime_guess 2.0.0-alpha.2 (registry+https://github.com/rust-lang/crates.io-index)" = "27a5e6679a0614e25adc14c6434ba84e41632b765a6d9cb2031a0cca682699ae"
-"checksum miniz_oxide 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "aaa2d3ad070f428fffbd7d3ca2ea20bb0d8cffe9024405c44e1840bc1418b398"
-"checksum miniz_oxide_c_api 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "92d98fdbd6145645828069b37ea92ca3de225e000d80702da25c20d3584b38a5"
+"checksum miniz_oxide 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "9ba430291c9d6cedae28bcd2d49d1c32fc57d60cd49086646c5dd5673a870eb5"
+"checksum miniz_oxide_c_api 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "5a5b8234d6103ebfba71e29786da4608540f862de5ce980a1c94f86a40ca0d51"
 "checksum mio 0.6.14 (registry+https://github.com/rust-lang/crates.io-index)" = "6d771e3ef92d58a8da8df7d6976bfca9371ed1de6619d9d5a5ce5b1f29b85bfe"
 "checksum mio-named-pipes 0.1.5 (git+https://github.com/alexcrichton/mio-named-pipes)" = "<none>"
 "checksum mio-uds 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)" = "1731a873077147b626d89cc6c2a0db6288d607496c5d10c0cfcf3adc697ec673"
@@ -3924,16 +3946,17 @@ dependencies = [
 "checksum parity-ui-old-dev 1.9.0 (git+https://github.com/parity-js/dapp-wallet.git?rev=65deb02e7c007a0fd8aab0c089c93e3fd1de6f87)" = "<none>"
 "checksum parity-ui-old-precompiled 1.9.0 (git+https://github.com/js-dist-paritytech/parity-master-1-10-wallet.git?rev=4b6f112412716cd05123d32eeb7fda448288a6c6)" = "<none>"
 "checksum parity-ui-precompiled 1.9.0 (git+https://github.com/js-dist-paritytech/parity-master-1-10-shell.git?rev=bd25b41cd642c6b822d820dded3aa601a29aa079)" = "<none>"
-"checksum parity-wasm 0.27.5 (registry+https://github.com/rust-lang/crates.io-index)" = "a93ad771f67ce8a6af64c6444a99c07b15f4674203657496fc31244ffb1de2c3"
+"checksum parity-wasm 0.31.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e1c91199d14bd5b78ecade323d4a891d094799749c1b9e82d9c590c2e2849a40"
 "checksum parity-wordlist 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1d0dec124478845b142f68b446cbee953d14d4b41f1bc0425024417720dce693"
-"checksum parking_lot 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)" = "9fd9d732f2de194336fb02fe11f9eed13d9e76f13f4315b4d88a14ca411750cd"
+"checksum parking_lot 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)" = "d4d05f1349491390b1730afba60bb20d55761bef489a954546b58b4b34e1e2ac"
+"checksum parking_lot 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "901d6514273469bb17380c1ac3f51fb3ce54be1f960e51a6f04901eba313ab8d"
 "checksum parking_lot_core 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "4f610cb9664da38e417ea3225f23051f589851999535290e077939838ab7a595"
 "checksum percent-encoding 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "de154f638187706bde41d9b4738748933d64e6b37bdbffc0b47a97d16a6ae356"
 "checksum phf 0.7.21 (registry+https://github.com/rust-lang/crates.io-index)" = "cb325642290f28ee14d8c6201159949a872f220c62af6e110a56ea914fbe42fc"
 "checksum phf_codegen 0.7.21 (registry+https://github.com/rust-lang/crates.io-index)" = "d62594c0bb54c464f633175d502038177e90309daf2e0158be42ed5f023ce88f"
 "checksum phf_generator 0.7.21 (registry+https://github.com/rust-lang/crates.io-index)" = "6b07ffcc532ccc85e3afc45865469bf5d9e4ef5bfcf9622e3cfe80c2d275ec03"
 "checksum phf_shared 0.7.21 (registry+https://github.com/rust-lang/crates.io-index)" = "07e24b0ca9643bdecd0632f2b3da6b1b89bbb0030e0b992afc1113b23a7bc2f2"
-"checksum podio 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "e5422a1ee1bc57cc47ae717b0137314258138f38fd5f3cea083f43a9725383a0"
+"checksum podio 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "780fb4b6698bbf9cf2444ea5d22411cef2953f0824b98f33cf454ec5615645bd"
 "checksum pretty_assertions 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "2412f3332a07c7a2a50168988dcc184f32180a9758ad470390e5f55e089f6b6e"
 "checksum primal 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "0e31b86efadeaeb1235452171a66689682783149a6249ff334a2c5d8218d00a4"
 "checksum primal-bit 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)" = "686a64e2f50194c64942992af5799e6b6e8775b8f88c607d72ed0a2fd58b9b21"
@@ -3943,7 +3966,7 @@ dependencies = [
 "checksum proc-macro2 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "388d7ea47318c5ccdeb9ba6312cee7d3f65dd2804be8580a170fce410d50b786"
 "checksum protobuf 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "40e2484e639dcae0985fc483ad76ce7ad78ee5aa092751d7d538f0b20d76486b"
 "checksum pulldown-cmark 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "8361e81576d2e02643b04950e487ec172b687180da65c731c03cf336784e6c07"
-"checksum pwasm-utils 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "d51e9954a77aab7b4b606dc315a49cbed187924f163b6750cdf6d5677dbf0839"
+"checksum pwasm-utils 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "90d2b3c5bf24275fc77db6b14ec00a7a085d8ff9d1c4215fb6f6263e8d7b01bc"
 "checksum quasi 0.32.0 (registry+https://github.com/rust-lang/crates.io-index)" = "18c45c4854d6d1cf5d531db97c75880feb91c958b0720f4ec1057135fec358b3"
 "checksum quasi_codegen 0.32.0 (registry+https://github.com/rust-lang/crates.io-index)" = "51b9e25fa23c044c1803f43ca59c98dac608976dd04ce799411edd58ece776d4"
 "checksum quote 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7b0ff51282f28dc1b53fd154298feaa2e77c5ea0dba68e1fd8b03b72fbe13d2a"
@@ -3973,7 +3996,7 @@ dependencies = [
 "checksum sct 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1137b767bbe1c4d30656993bdd97422ed41255d9400b105d735f8c7d9e800632"
 "checksum semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
 "checksum semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
-"checksum serde 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)" = "d3bcee660dcde8f52c3765dd9ca5ee36b4bf35470a738eb0bd5a8752b0389645"
+"checksum serde 1.0.70 (registry+https://github.com/rust-lang/crates.io-index)" = "0c3adf19c07af6d186d91dae8927b83b0553d07ca56cbf7f2f32560455c91920"
 "checksum serde_derive 1.0.37 (registry+https://github.com/rust-lang/crates.io-index)" = "f1711ab8b208541fa8de00425f6a577d90f27bb60724d2bb5fd911314af9668f"
 "checksum serde_derive_internals 0.23.0 (registry+https://github.com/rust-lang/crates.io-index)" = "89b340a48245bc03ddba31d0ff1709c118df90edc6adabaca4aac77aea181cce"
 "checksum serde_ignored 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "190e9765dcedb56be63b6e0993a006c7e3b071a016a304736e4a315dc01fb142"
@@ -3987,7 +4010,7 @@ dependencies = [
 "checksum slab 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "17b4fcaed89ab08ef143da37bc52adbcc04d4a69014f4c1208d6b51f0c47bc23"
 "checksum slab 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fdeff4cd9ecff59ec7e3744cbca73dfe5ac35c2aedb2cfba8a1c715a18912e9d"
 "checksum smallvec 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4c8cbcd6df1e117c2210e13ab5109635ad68a929fcbb8964dc965b76cb5ee013"
-"checksum smallvec 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "8fcd03faf178110ab0334d74ca9631d77f94c8c11cc77fcb59538abf0025695d"
+"checksum smallvec 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)" = "f90c5e5fe535e48807ab94fc611d323935f39d4660c52b26b96446a7b33aef10"
 "checksum snappy 0.1.0 (git+https://github.com/paritytech/rust-snappy)" = "<none>"
 "checksum snappy-sys 0.1.0 (git+https://github.com/paritytech/rust-snappy)" = "<none>"
 "checksum socket2 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "06dc9f86ee48652b7c80f3d254e3b9accb67a928c562c64d10d7b016d3d98dab"
@@ -4048,7 +4071,7 @@ dependencies = [
 "checksum vergen 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "8c3365f36c57e5df714a34be40902b27a992eeddb9996eca52d0584611cf885d"
 "checksum version_check 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "6b772017e347561807c1aa192438c5fd74242a670a6cffacc40f2defd1dc069d"
 "checksum void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
-"checksum wasmi 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "46df76793c28cd8f590d5667f540a81c1c245440a17b03560e381226e27cf348"
+"checksum wasmi 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "076dfb6fe482466f13c191c1ae658692665886776073867881e4ae52bcbc8b4a"
 "checksum webpki 0.17.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9e1622384bcb5458c6a3e3fa572f53ea8fef1cc85e535a2983dea87e9154fac2"
 "checksum webpki-roots 0.13.0 (registry+https://github.com/rust-lang/crates.io-index)" = "155d4060e5befdf3a6076bd28c22513473d9900b763c9e4521acc6f78a75415c"
 "checksum winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
@@ -4061,4 +4084,4 @@ dependencies = [
 "checksum xdg 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a66b7c2281ebde13cf4391d70d4c7e5946c3c25e72a7b859ca8f677dcd0b0c61"
 "checksum xml-rs 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3c1cb601d29fe2c2ac60a2b2e5e293994d87a1f6fa9687a31a15270f909be9c2"
 "checksum xmltree 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a9cfb54ca6b8f17d2377219ce485b134d53561b77e1393c7ea416f543a527431"
-"checksum zip 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "10931e278527cea65682696481e6d840371d581079df529ebfee186e0eaad719"
+"checksum zip 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "77ce0ceee93c995954a31f77903925a6a8bb094709445238e344f2107910e29e"
diff --git a/Cargo.toml b/Cargo.toml
index 93f84db58..54cf0fc93 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,7 +2,7 @@
 description = "Parity Ethereum client"
 name = "parity"
 # NOTE Make sure to update util/version/Cargo.toml as well
-version = "1.11.7"
+version = "1.11.8"
 license = "GPL-3.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 
diff --git a/docker/hub/Dockerfile b/docker/hub/Dockerfile
index c6d812446..49615850b 100644
--- a/docker/hub/Dockerfile
+++ b/docker/hub/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:14.04
+FROM ubuntu:xenial
 MAINTAINER Parity Technologies <devops@parity.io>
 WORKDIR /build
 #ENV for build TAG
@@ -41,7 +41,6 @@ cd /build&&git clone https://github.com/paritytech/parity && \
 	git pull&& \
 	git checkout $BUILD_TAG && \
         cargo build --verbose --release --features final && \
-        #ls /build/parity/target/release/parity && \
         strip /build/parity/target/release/parity && \
  file /build/parity/target/release/parity&&mkdir -p /parity&& cp /build/parity/target/release/parity /parity&&\
 #cleanup Docker image
@@ -52,6 +51,7 @@ cd /build&&git clone https://github.com/paritytech/parity && \
         # add-apt-repository
         software-properties-common \
         make \
+        cmake \
         curl \
         wget \
         git \
diff --git a/ethcore/src/engines/authority_round/mod.rs b/ethcore/src/engines/authority_round/mod.rs
index 97307fbf2..4dae7922c 100644
--- a/ethcore/src/engines/authority_round/mod.rs
+++ b/ethcore/src/engines/authority_round/mod.rs
@@ -1149,9 +1149,10 @@ impl Engine<EthereumMachine> for AuthorityRound {
 
 		// If empty step messages are enabled we will validate the messages in the seal, missing messages are not
 		// reported as there's no way to tell whether the empty step message was never sent or simply not included.
-		if header.number() >= self.empty_steps_transition {
-			let validate_empty_steps = || -> Result<(), Error> {
+		let empty_steps_len = if header.number() >= self.empty_steps_transition {
+			let validate_empty_steps = || -> Result<usize, Error> {
 				let empty_steps = header_empty_steps(header)?;
+				let empty_steps_len = empty_steps.len();
 				for empty_step in empty_steps {
 					if empty_step.step <= parent_step || empty_step.step >= step {
 						Err(EngineError::InsufficientProof(
@@ -1168,16 +1169,27 @@ impl Engine<EthereumMachine> for AuthorityRound {
 							format!("invalid empty step proof: {:?}", empty_step)))?;
 					}
 				}
-				Ok(())
+				Ok(empty_steps_len)
 			};
 
-			if let err @ Err(_) = validate_empty_steps() {
-				self.validators.report_benign(header.author(), set_number, header.number());
-				return err;
+			match validate_empty_steps() {
+				Ok(len) => len,
+				Err(err) => {
+					self.validators.report_benign(header.author(), set_number, header.number());
+					return Err(err);
+				},
 			}
-
 		} else {
 			self.report_skipped(header, step, parent_step, &*validators, set_number);
+
+			0
+		};
+
+		if header.number() >= self.validate_score_transition {
+			let expected_difficulty = calculate_score(parent_step.into(), step.into(), empty_steps_len.into());
+			if header.difficulty() != &expected_difficulty {
+				return Err(From::from(BlockError::InvalidDifficulty(Mismatch { expected: expected_difficulty, found: header.difficulty().clone() })));
+			}
 		}
 
 		Ok(())
@@ -1408,7 +1420,7 @@ mod tests {
 	use engines::{Seal, Engine, EngineError, EthEngine};
 	use engines::validator_set::TestSet;
 	use error::{Error, ErrorKind};
-	use super::{AuthorityRoundParams, AuthorityRound, EmptyStep, SealedEmptyStep};
+	use super::{AuthorityRoundParams, AuthorityRound, EmptyStep, SealedEmptyStep, calculate_score};
 
 	#[test]
 	fn has_valid_metadata() {
@@ -1514,12 +1526,15 @@ mod tests {
 
 		let engine = Spec::new_test_round().engine;
 
-		let signature = tap.sign(addr, Some("0".into()), header.bare_hash()).unwrap();
 		// Two validators.
 		// Spec starts with step 2.
+		header.set_difficulty(calculate_score(U256::from(0), U256::from(2), U256::zero()));
+		let signature = tap.sign(addr, Some("0".into()), header.bare_hash()).unwrap();
 		header.set_seal(vec![encode(&2usize).into_vec(), encode(&(&*signature as &[u8])).into_vec()]);
 		assert!(engine.verify_block_family(&header, &parent_header).is_ok());
 		assert!(engine.verify_block_external(&header).is_err());
+		header.set_difficulty(calculate_score(U256::from(0), U256::from(1), U256::zero()));
+		let signature = tap.sign(addr, Some("0".into()), header.bare_hash()).unwrap();
 		header.set_seal(vec![encode(&1usize).into_vec(), encode(&(&*signature as &[u8])).into_vec()]);
 		assert!(engine.verify_block_family(&header, &parent_header).is_ok());
 		assert!(engine.verify_block_external(&header).is_ok());
@@ -1540,9 +1555,10 @@ mod tests {
 
 		let engine = Spec::new_test_round().engine;
 
-		let signature = tap.sign(addr, Some("0".into()), header.bare_hash()).unwrap();
 		// Two validators.
 		// Spec starts with step 2.
+		header.set_difficulty(calculate_score(U256::from(0), U256::from(1), U256::zero()));
+		let signature = tap.sign(addr, Some("0".into()), header.bare_hash()).unwrap();
 		header.set_seal(vec![encode(&1usize).into_vec(), encode(&(&*signature as &[u8])).into_vec()]);
 		assert!(engine.verify_block_family(&header, &parent_header).is_ok());
 		assert!(engine.verify_block_external(&header).is_ok());
@@ -1569,8 +1585,10 @@ mod tests {
 		// Two validators.
 		// Spec starts with step 2.
 		header.set_seal(vec![encode(&5usize).into_vec(), encode(&(&*signature as &[u8])).into_vec()]);
+		header.set_difficulty(calculate_score(U256::from(4), U256::from(5), U256::zero()));
 		assert!(engine.verify_block_family(&header, &parent_header).is_ok());
 		header.set_seal(vec![encode(&3usize).into_vec(), encode(&(&*signature as &[u8])).into_vec()]);
+		header.set_difficulty(calculate_score(U256::from(4), U256::from(3), U256::zero()));
 		assert!(engine.verify_block_family(&header, &parent_header).is_err());
 	}
 
@@ -1604,6 +1622,7 @@ mod tests {
 		parent_header.set_seal(vec![encode(&1usize).into_vec()]);
 		parent_header.set_gas_limit("222222".parse::<U256>().unwrap());
 		let mut header: Header = Header::default();
+		header.set_difficulty(calculate_score(U256::from(1), U256::from(3), U256::zero()));
 		header.set_gas_limit("222222".parse::<U256>().unwrap());
 		header.set_seal(vec![encode(&3usize).into_vec()]);
 
@@ -1963,16 +1982,15 @@ mod tests {
 		let empty_step3 = sealed_empty_step(engine, 3, &parent_header.hash());
 
 		let empty_steps = vec![empty_step2, empty_step3];
+		header.set_difficulty(calculate_score(U256::from(0), U256::from(4), U256::from(2)));
+		let signature = tap.sign(addr1, Some("1".into()), header.bare_hash()).unwrap();
 		header.set_seal(vec![
 			encode(&4usize).into_vec(),
 			encode(&(&*signature as &[u8])).into_vec(),
 			::rlp::encode_list(&empty_steps).into_vec(),
 		]);
 
-		assert!(match engine.verify_block_family(&header, &parent_header) {
-			Ok(_) => true,
-			_ => false,
-		});
+		assert!(engine.verify_block_family(&header, &parent_header).is_ok());
 	}
 
 	#[test]
diff --git a/ethcore/src/miner/miner.rs b/ethcore/src/miner/miner.rs
index 53a67bc5f..99a9907ef 100644
--- a/ethcore/src/miner/miner.rs
+++ b/ethcore/src/miner/miner.rs
@@ -1026,10 +1026,12 @@ impl miner::MinerService for Miner {
 
 		// refuse to seal the first block of the chain if it contains hard forks
 		// which should be on by default.
-		if block.block().header().number() == 1 && self.engine.params().contains_bugfix_hard_fork() {
-			warn!("Your chain specification contains one or more hard forks which are required to be \
-				on by default. Please remove these forks and start your chain again.");
-			return;
+		if block.block().header().number() == 1 {
+			if let Some(name) = self.engine.params().nonzero_bugfix_hard_fork() {
+				warn!("Your chain specification contains one or more hard forks which are required to be \
+					   on by default. Please remove these forks and start your chain again: {}.", name);
+				return;
+			}
 		}
 
 		match self.engine.seals_internally() {
diff --git a/ethcore/src/spec/spec.rs b/ethcore/src/spec/spec.rs
index 23a2727d9..3f89250ca 100644
--- a/ethcore/src/spec/spec.rs
+++ b/ethcore/src/spec/spec.rs
@@ -57,7 +57,7 @@ fn fmt_err<F: ::std::fmt::Display>(f: F) -> String {
 
 /// Parameters common to ethereum-like blockchains.
 /// NOTE: when adding bugfix hard-fork parameters,
-/// add to `contains_bugfix_hard_fork`
+/// add to `nonzero_bugfix_hard_fork`
 ///
 /// we define a "bugfix" hard fork as any hard fork which
 /// you would put on-by-default in a new chain.
@@ -166,13 +166,21 @@ impl CommonParams {
 		}
 	}
 
-	/// Whether these params contain any bug-fix hard forks.
-	pub fn contains_bugfix_hard_fork(&self) -> bool {
-		self.eip98_transition != 0 && self.eip155_transition != 0 &&
-			self.validate_receipts_transition != 0 && self.eip86_transition != 0 &&
-			self.eip140_transition != 0 && self.eip210_transition != 0 &&
-			self.eip211_transition != 0 && self.eip214_transition != 0 &&
-			self.validate_chain_id_transition != 0 && self.dust_protection_transition != 0
+	/// Return Some if the current parameters contain a bugfix hard fork not on block 0.
+	pub fn nonzero_bugfix_hard_fork(&self) -> Option<&str> {
+		if self.eip155_transition != 0 {
+			return Some("eip155Transition");
+		}
+
+		if self.validate_receipts_transition != 0 {
+			return Some("validateReceiptsTransition");
+		}
+
+		if self.validate_chain_id_transition != 0 {
+			return Some("validateChainIdTransition");
+		}
+
+		None
 	}
 }
 
diff --git a/ethcore/wasm/Cargo.toml b/ethcore/wasm/Cargo.toml
index a0362955d..5c48837fd 100644
--- a/ethcore/wasm/Cargo.toml
+++ b/ethcore/wasm/Cargo.toml
@@ -7,9 +7,9 @@ authors = ["Parity Technologies <admin@parity.io>"]
 byteorder = "1.0"
 ethereum-types = "0.3"
 log = "0.3"
-parity-wasm = "0.27"
+parity-wasm = "0.31"
 libc = "0.2"
-pwasm-utils = "0.1"
+pwasm-utils = "0.2.2"
 vm = { path = "../vm" }
 ethcore-logger = { path = "../../logger" }
 wasmi = { version = "0.2" }
diff --git a/ethcore/wasm/src/parser.rs b/ethcore/wasm/src/parser.rs
index 62cd66cb9..a37a58145 100644
--- a/ethcore/wasm/src/parser.rs
+++ b/ethcore/wasm/src/parser.rs
@@ -25,7 +25,7 @@ fn gas_rules(wasm_costs: &vm::WasmCosts) -> rules::Set {
 	rules::Set::new(
 		wasm_costs.regular,
 		{
-			let mut vals = ::std::collections::HashMap::with_capacity(8);
+			let mut vals = ::std::collections::BTreeMap::new();
 			vals.insert(rules::InstructionType::Load, rules::Metering::Fixed(wasm_costs.mem as u32));
 			vals.insert(rules::InstructionType::Store, rules::Metering::Fixed(wasm_costs.mem as u32));
 			vals.insert(rules::InstructionType::Div, rules::Metering::Fixed(wasm_costs.div as u32));
diff --git a/mac/Parity.pkgproj b/mac/Parity.pkgproj
index 9888178a2..09202dc5c 100755
--- a/mac/Parity.pkgproj
+++ b/mac/Parity.pkgproj
@@ -462,7 +462,7 @@
 				<key>OVERWRITE_PERMISSIONS</key>
 				<false/>
 				<key>VERSION</key>
-				<string>1.11.7</string>
+				<string>1.11.8</string>
 			</dict>
 			<key>UUID</key>
 			<string>2DCD5B81-7BAF-4DA1-9251-6274B089FD36</string>
diff --git a/miner/src/pool/scoring.rs b/miner/src/pool/scoring.rs
index 2a99cd48a..13a0ff193 100644
--- a/miner/src/pool/scoring.rs
+++ b/miner/src/pool/scoring.rs
@@ -143,6 +143,10 @@ impl txpool::Scoring<VerifiedTransaction> for NonceAndGasPrice {
 			}
 	 	}
 	}
+
+	fn should_ignore_sender_limit(&self, new: &VerifiedTransaction) -> bool {
+		new.priority().is_local()
+	}
 }
 
 #[cfg(test)]
diff --git a/miner/src/pool/tests/mod.rs b/miner/src/pool/tests/mod.rs
index c0252f862..5bc5b0165 100644
--- a/miner/src/pool/tests/mod.rs
+++ b/miner/src/pool/tests/mod.rs
@@ -116,12 +116,11 @@ fn should_never_drop_local_transactions_from_different_senders() {
 	let r1 = txq.import(TestClient::new(), vec![tx1].local());
 	let r2 = txq.import(TestClient::new(), vec![tx2].local());
 	assert_eq!(r1, vec![Ok(())]);
-	// max-per-sender is reached, that's ok.
-	assert_eq!(r2, vec![Err(transaction::Error::LimitReached)]);
-	assert_eq!(txq.status().status.transaction_count, 1);
+	assert_eq!(r2, vec![Ok(())]);
+	assert_eq!(txq.status().status.transaction_count, 2);
 
 	// then
-	assert_eq!(txq.next_nonce(TestClient::new(), &sender), Some(nonce + 1.into()));
+	assert_eq!(txq.next_nonce(TestClient::new(), &sender), Some(nonce + 2.into()));
 
 	// when
 	let tx1 = Tx::gas_price(2).signed();
@@ -134,8 +133,8 @@ fn should_never_drop_local_transactions_from_different_senders() {
 	// then
 	assert_eq!(res, vec![Ok(()), Ok(())]);
 	assert_eq!(res2, vec![Ok(()), Ok(())]);
-	assert_eq!(txq.status().status.transaction_count, 5);
-	assert_eq!(txq.next_nonce(TestClient::new(), &sender), Some(nonce + 1.into()));
+	assert_eq!(txq.status().status.transaction_count, 6);
+	assert_eq!(txq.next_nonce(TestClient::new(), &sender), Some(nonce + 2.into()));
 }
 
 #[test]
diff --git a/nsis/installer.nsi b/nsis/installer.nsi
index 7a5fb3f05..6fd44a356 100644
--- a/nsis/installer.nsi
+++ b/nsis/installer.nsi
@@ -10,7 +10,7 @@
 !define DESCRIPTION "Fast, light, robust Ethereum implementation"
 !define VERSIONMAJOR 1
 !define VERSIONMINOR 11
-!define VERSIONBUILD 7
+!define VERSIONBUILD 8
 !define ARGS ""
 !define FIRST_START_ARGS "--mode=passive ui"
 
diff --git a/parity/informant.rs b/parity/informant.rs
index a4d2727c3..077cc48b0 100644
--- a/parity/informant.rs
+++ b/parity/informant.rs
@@ -35,7 +35,7 @@ use io::{TimerToken, IoContext, IoHandler};
 use light::Cache as LightDataCache;
 use light::client::{LightChainClient, LightChainNotify};
 use number_prefix::{binary_prefix, Standalone, Prefixed};
-use parity_rpc::{is_major_importing};
+use parity_rpc::is_major_importing_or_waiting;
 use parity_rpc::informant::RpcStats;
 use ethereum_types::H256;
 use bytes::Bytes;
@@ -128,7 +128,7 @@ impl InformantData for FullNodeInformantData {
 
 	fn is_major_importing(&self) -> bool {
 		let state = self.sync.as_ref().map(|sync| sync.status().state);
-		is_major_importing(state, self.client.queue_info())
+		is_major_importing_or_waiting(state, self.client.queue_info(), false)
 	}
 
 	fn report(&self) -> Report {
@@ -142,23 +142,23 @@ impl InformantData for FullNodeInformantData {
 		cache_sizes.insert("queue", queue_info.mem_used);
 		cache_sizes.insert("chain", blockchain_cache_info.total());
 
-		let (importing, sync_info) = match (self.sync.as_ref(), self.net.as_ref()) {
+		let importing = self.is_major_importing();
+		let sync_info = match (self.sync.as_ref(), self.net.as_ref()) {
 			(Some(sync), Some(net)) => {
 				let status = sync.status();
 				let net_config = net.network_config();
 
 				cache_sizes.insert("sync", status.mem_used);
 
-				let importing = is_major_importing(Some(status.state), queue_info.clone());
-				(importing, Some(SyncInfo {
+				Some(SyncInfo {
 					last_imported_block_number: status.last_imported_block_number.unwrap_or(chain_info.best_block_number),
 					last_imported_old_block_number: status.last_imported_old_block_number,
 					num_peers: status.num_peers,
 					max_peers: status.current_max_peers(net_config.min_peers, net_config.max_peers),
 					snapshot_sync: status.is_snapshot_syncing(),
-				}))
+				})
 			}
-			_ => (is_major_importing(self.sync.as_ref().map(|s| s.status().state), queue_info.clone()), None),
+			_ => None
 		};
 
 		Report {
diff --git a/parity/params.rs b/parity/params.rs
index dc160dbfd..bf6a61935 100644
--- a/parity/params.rs
+++ b/parity/params.rs
@@ -331,7 +331,7 @@ pub fn fatdb_switch_to_bool(switch: Switch, user_defaults: &UserDefaults, _algor
 }
 
 pub fn mode_switch_to_bool(switch: Option<Mode>, user_defaults: &UserDefaults) -> Result<Mode, String> {
-	Ok(switch.unwrap_or(user_defaults.mode.clone()))
+	Ok(switch.unwrap_or(user_defaults.mode().clone()))
 }
 
 #[cfg(test)]
diff --git a/parity/run.rs b/parity/run.rs
index 746ea09a3..1b7632598 100644
--- a/parity/run.rs
+++ b/parity/run.rs
@@ -871,13 +871,13 @@ fn execute_impl<Cr, Rr>(cmd: RunCmd, logger: Arc<RotatingLogger>, on_client_rq:
 	user_defaults.pruning = algorithm;
 	user_defaults.tracing = tracing;
 	user_defaults.fat_db = fat_db;
-	user_defaults.mode = mode;
+	user_defaults.set_mode(mode);
 	user_defaults.save(&user_defaults_path)?;
 
 	// tell client how to save the default mode if it gets changed.
 	client.on_user_defaults_change(move |mode: Option<Mode>| {
 		if let Some(mode) = mode {
-			user_defaults.mode = mode;
+			user_defaults.set_mode(mode);
 		}
 		let _ = user_defaults.save(&user_defaults_path);	// discard failures - there's nothing we can do
 	});
diff --git a/parity/user_defaults.rs b/parity/user_defaults.rs
index a1d305c0a..cb3733d6a 100644
--- a/parity/user_defaults.rs
+++ b/parity/user_defaults.rs
@@ -14,107 +14,130 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
-use std::fmt;
 use std::fs::File;
 use std::io::Write;
 use std::path::Path;
-use std::collections::BTreeMap;
 use std::time::Duration;
-use serde::{Serialize, Serializer, Deserialize, Deserializer};
-use serde::de::{Error, Visitor, MapAccess};
-use serde::de::value::MapAccessDeserializer;
-use serde_json::Value;
+use serde::{Deserialize, Deserializer, Serialize, Serializer};
 use serde_json::de::from_reader;
 use serde_json::ser::to_string;
 use journaldb::Algorithm;
-use ethcore::client::Mode;
+use ethcore::client::{Mode as ClientMode};
 
+#[derive(Clone)]
+pub struct Seconds(Duration);
+
+impl Seconds {
+	pub fn value(&self) -> u64 {
+		self.0.as_secs()
+	}
+}
+
+impl From<u64> for Seconds {
+	fn from(s: u64) -> Seconds {
+		Seconds(Duration::from_secs(s))
+	}
+}
+
+impl From<Duration> for Seconds {
+	fn from(d: Duration) -> Seconds {
+		Seconds(d)
+	}
+}
+
+impl Into<Duration> for Seconds {
+	fn into(self) -> Duration {
+		self.0
+	}
+}
+
+impl Serialize for Seconds {
+	fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
+		serializer.serialize_u64(self.value())
+	}
+}
+
+impl<'de> Deserialize<'de> for Seconds {
+	fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
+		let secs = u64::deserialize(deserializer)?;
+		Ok(Seconds::from(secs))
+	}
+}
+
+#[derive(Clone, Serialize, Deserialize)]
+#[serde(rename_all = "lowercase", tag = "mode")]
+pub enum Mode {
+	Active,
+	Passive {
+		#[serde(rename = "mode.timeout")]
+		timeout: Seconds,
+		#[serde(rename = "mode.alarm")]
+		alarm: Seconds,
+	},
+	Dark {
+		#[serde(rename = "mode.timeout")]
+		timeout: Seconds,
+	},
+	Offline,
+}
+
+impl Into<ClientMode> for Mode {
+	fn into(self) -> ClientMode {
+		match self {
+			Mode::Active => ClientMode::Active,
+			Mode::Passive { timeout, alarm } => ClientMode::Passive(timeout.into(), alarm.into()),
+			Mode::Dark { timeout } => ClientMode::Dark(timeout.into()),
+			Mode::Offline => ClientMode::Off,
+		}
+	}
+}
+
+impl From<ClientMode> for Mode {
+	fn from(mode: ClientMode) -> Mode {
+		match mode {
+			ClientMode::Active => Mode::Active,
+			ClientMode::Passive(timeout, alarm) => Mode::Passive { timeout: timeout.into(), alarm: alarm.into() },
+			ClientMode::Dark(timeout) => Mode::Dark { timeout: timeout.into() },
+			ClientMode::Off => Mode::Offline,
+		}
+	}
+}
+
+#[derive(Serialize, Deserialize)]
 pub struct UserDefaults {
 	pub is_first_launch: bool,
+	#[serde(with = "algorithm_serde")]
 	pub pruning: Algorithm,
 	pub tracing: bool,
 	pub fat_db: bool,
-	pub mode: Mode,
+	#[serde(flatten)]
+	mode: Mode,
 }
 
-impl Serialize for UserDefaults {
-	fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+impl UserDefaults {
+	pub fn mode(&self) -> ClientMode {
+		self.mode.clone().into()
+	}
+
+	pub fn set_mode(&mut self, mode: ClientMode) {
+		self.mode = mode.into();
+	}
+}
+
+mod algorithm_serde {
+	use serde::{Deserialize, Deserializer, Serialize, Serializer};
+	use serde::de::Error;
+	use journaldb::Algorithm;
+
+	pub fn serialize<S>(algorithm: &Algorithm, serializer: S) -> Result<S::Ok, S::Error>
 	where S: Serializer {
-		let mut map: BTreeMap<String, Value> = BTreeMap::new();
-		map.insert("is_first_launch".into(), Value::Bool(self.is_first_launch));
-		map.insert("pruning".into(), Value::String(self.pruning.as_str().into()));
-		map.insert("tracing".into(), Value::Bool(self.tracing));
-		map.insert("fat_db".into(), Value::Bool(self.fat_db));
-		let mode_str = match self.mode {
-			Mode::Off => "offline",
-			Mode::Dark(timeout) => {
-				map.insert("mode.timeout".into(), Value::Number(timeout.as_secs().into()));
-				"dark"
-			},
-			Mode::Passive(timeout, alarm) => {
-				map.insert("mode.timeout".into(), Value::Number(timeout.as_secs().into()));
-				map.insert("mode.alarm".into(), Value::Number(alarm.as_secs().into()));
-				"passive"
-			},
-			Mode::Active => "active",
-		};
-		map.insert("mode".into(), Value::String(mode_str.into()));
-
-		map.serialize(serializer)
-	}
-}
-
-struct UserDefaultsVisitor;
-
-impl<'a> Deserialize<'a> for UserDefaults {
-	fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
-	where D: Deserializer<'a> {
-		deserializer.deserialize_any(UserDefaultsVisitor)
-	}
-}
-
-impl<'a> Visitor<'a> for UserDefaultsVisitor {
-	type Value = UserDefaults;
-
-	fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
-		write!(formatter, "a valid UserDefaults object")
+		algorithm.as_str().serialize(serializer)
 	}
 
-	fn visit_map<V>(self, visitor: V) -> Result<Self::Value, V::Error> where V: MapAccess<'a> {
-		let mut map: BTreeMap<String, Value> = Deserialize::deserialize(MapAccessDeserializer::new(visitor))?;
-		let pruning: Value = map.remove("pruning").ok_or_else(|| Error::custom("missing pruning"))?;
-		let pruning = pruning.as_str().ok_or_else(|| Error::custom("invalid pruning value"))?;
-		let pruning = pruning.parse().map_err(|_| Error::custom("invalid pruning method"))?;
-		let tracing: Value = map.remove("tracing").ok_or_else(|| Error::custom("missing tracing"))?;
-		let tracing = tracing.as_bool().ok_or_else(|| Error::custom("invalid tracing value"))?;
-		let fat_db: Value = map.remove("fat_db").unwrap_or_else(|| Value::Bool(false));
-		let fat_db = fat_db.as_bool().ok_or_else(|| Error::custom("invalid fat_db value"))?;
-
-		let mode: Value = map.remove("mode").unwrap_or_else(|| Value::String("active".to_owned()));
-		let mode = match mode.as_str().ok_or_else(|| Error::custom("invalid mode value"))? {
-			"offline" => Mode::Off,
-			"dark" => {
-				let timeout = map.remove("mode.timeout").and_then(|v| v.as_u64()).ok_or_else(|| Error::custom("invalid/missing mode.timeout value"))?;
-				Mode::Dark(Duration::from_secs(timeout))
-			},
-			"passive" => {
-				let timeout = map.remove("mode.timeout").and_then(|v| v.as_u64()).ok_or_else(|| Error::custom("invalid/missing mode.timeout value"))?;
-				let alarm = map.remove("mode.alarm").and_then(|v| v.as_u64()).ok_or_else(|| Error::custom("invalid/missing mode.alarm value"))?;
-				Mode::Passive(Duration::from_secs(timeout), Duration::from_secs(alarm))
-			},
-			"active" => Mode::Active,
-			_ => { return Err(Error::custom("invalid mode value")); },
-		};
-
-		let user_defaults = UserDefaults {
-			is_first_launch: false,
-			pruning: pruning,
-			tracing: tracing,
-			fat_db: fat_db,
-			mode: mode,
-		};
-
-		Ok(user_defaults)
+	pub fn deserialize<'de, D>(deserializer: D) -> Result<Algorithm, D::Error>
+	where D: Deserializer<'de> {
+		let pruning = String::deserialize(deserializer)?;
+		pruning.parse().map_err(|_| Error::custom("invalid pruning method"))
 	}
 }
 
diff --git a/rpc/src/lib.rs b/rpc/src/lib.rs
index 7b5cc3644..bd8603707 100644
--- a/rpc/src/lib.rs
+++ b/rpc/src/lib.rs
@@ -116,7 +116,7 @@ pub use http::{
 };
 
 pub use v1::{NetworkSettings, Metadata, Origin, informant, dispatch, signer, dapps};
-pub use v1::block_import::is_major_importing;
+pub use v1::block_import::{is_major_importing, is_major_importing_or_waiting};
 pub use v1::extractors::{RpcExtractor, WsExtractor, WsStats, WsDispatcher};
 pub use authcodes::{AuthCodes, TimeProvider};
 pub use http_common::HttpMetaExtractor;
diff --git a/rpc/src/v1/helpers/block_import.rs b/rpc/src/v1/helpers/block_import.rs
index 1246faa65..4f61c5e77 100644
--- a/rpc/src/v1/helpers/block_import.rs
+++ b/rpc/src/v1/helpers/block_import.rs
@@ -19,16 +19,23 @@
 use ethcore::client::BlockQueueInfo;
 use sync::SyncState;
 
-/// Check if client is during major sync or during block import.
-pub fn is_major_importing(sync_state: Option<SyncState>, queue_info: BlockQueueInfo) -> bool {
+/// Check if client is during major sync or during block import and allows defining whether 'waiting for peers' should
+/// be considered a syncing state.
+pub fn is_major_importing_or_waiting(sync_state: Option<SyncState>, queue_info: BlockQueueInfo, waiting_is_syncing_state: bool) -> bool {
 	let is_syncing_state = sync_state.map_or(false, |s| match s {
-		SyncState::Idle | SyncState::NewBlocks | SyncState::WaitingPeers => false,
+		SyncState::Idle | SyncState::NewBlocks => false,
+		SyncState::WaitingPeers if !waiting_is_syncing_state => false,
 		_ => true,
 	});
 	let is_verifying = queue_info.unverified_queue_size + queue_info.verified_queue_size > 3;
 	is_verifying || is_syncing_state
 }
 
+/// Check if client is during major sync or during block import.
+pub fn is_major_importing(sync_state: Option<SyncState>, queue_info: BlockQueueInfo) -> bool {
+	is_major_importing_or_waiting(sync_state, queue_info, true)
+}
+
 #[cfg(test)]
 mod tests {
 	use ethcore::client::BlockQueueInfo;
diff --git a/scripts/gitlab-build.sh b/scripts/gitlab-build.sh
index e01f11c97..921fe2890 100755
--- a/scripts/gitlab-build.sh
+++ b/scripts/gitlab-build.sh
@@ -312,7 +312,7 @@ case $BUILD_PLATFORM in
     snapcraft clean
     echo "Prepare snapcraft.yaml for build on Gitlab CI in Docker image"
     sed -i 's/git/'"$VER"'/g' snap/snapcraft.yaml
-    if [[ "$CI_BUILD_REF_NAME" = "stable" || "$CI_BUILD_REF_NAME" = "beta" || "$VER" == *1.10* || "$VER" == *1.11* ]];
+    if [[ "$CI_BUILD_REF_NAME" = "stable" || "$CI_BUILD_REF_NAME" = "beta" || "$VER" == *1.11* || "$VER" == *2.0* ]];
       then
         sed -i -e 's/grade: devel/grade: stable/' snap/snapcraft.yaml;
     fi
diff --git a/transaction-pool/src/pool.rs b/transaction-pool/src/pool.rs
index 144d1b974..0275c775d 100644
--- a/transaction-pool/src/pool.rs
+++ b/transaction-pool/src/pool.rs
@@ -614,3 +614,4 @@ impl<'a, T, R, S, L> Iterator for PendingIterator<'a, T, R, S, L> where
 		None
 	}
 }
+
diff --git a/transaction-pool/src/scoring.rs b/transaction-pool/src/scoring.rs
index 96d288e5d..457dfd876 100644
--- a/transaction-pool/src/scoring.rs
+++ b/transaction-pool/src/scoring.rs
@@ -102,6 +102,12 @@ pub trait Scoring<T>: fmt::Debug {
 	///
 	/// NOTE returning `InsertNew` here can lead to some transactions being accepted above pool limits.
 	fn should_replace(&self, old: &T, new: &T) -> Choice;
+
+	/// Decides if the transaction should ignore per-sender limit in the pool.
+	///
+	/// If you return `true` for given transaction it's going to be accepted even though
+	/// the per-sender limit is exceeded.
+	fn should_ignore_sender_limit(&self, _new: &T) -> bool { false }
 }
 
 /// A score with a reference to the transaction.
diff --git a/transaction-pool/src/tests/helpers.rs b/transaction-pool/src/tests/helpers.rs
index dd08a70b8..1cdf886ba 100644
--- a/transaction-pool/src/tests/helpers.rs
+++ b/transaction-pool/src/tests/helpers.rs
@@ -77,6 +77,10 @@ impl Scoring<Transaction> for DummyScoring {
 			scoring::Choice::RejectNew
 		}
 	}
+
+	fn should_ignore_sender_limit(&self, _new: &Transaction) -> bool {
+		self.always_insert
+	}
 }
 
 #[derive(Default)]
diff --git a/transaction-pool/src/tests/mod.rs b/transaction-pool/src/tests/mod.rs
index b4932e590..5596f617d 100644
--- a/transaction-pool/src/tests/mod.rs
+++ b/transaction-pool/src/tests/mod.rs
@@ -591,6 +591,33 @@ fn should_not_import_even_if_limit_is_reached_and_should_replace_returns_false()
 	});
 }
 
+#[test]
+fn should_import_even_if_sender_limit_is_reached() {
+	// given
+	let b = TransactionBuilder::default();
+	let mut txq = TestPool::with_scoring(DummyScoring::always_insert(), Options {
+		max_count: 1,
+		max_per_sender: 1,
+		..Default::default()
+	});
+	txq.import(b.tx().nonce(0).gas_price(5).new()).unwrap();
+	assert_eq!(txq.light_status(), LightStatus {
+		transaction_count: 1,
+		senders: 1,
+		mem_usage: 0,
+	});
+
+	// when
+	txq.import(b.tx().nonce(1).gas_price(5).new()).unwrap();
+
+	// then
+	assert_eq!(txq.light_status(), LightStatus {
+		transaction_count: 2,
+		senders: 1,
+		mem_usage: 0,
+	});
+}
+
 mod listener {
 	use std::cell::RefCell;
 	use std::rc::Rc;
diff --git a/transaction-pool/src/transactions.rs b/transaction-pool/src/transactions.rs
index f1a91ff4f..4142ceb1b 100644
--- a/transaction-pool/src/transactions.rs
+++ b/transaction-pool/src/transactions.rs
@@ -95,7 +95,7 @@ impl<T: fmt::Debug, S: Scoring<T>> Transactions<T, S> {
 
 	fn push_cheapest_transaction(&mut self, tx: Transaction<T>, scoring: &S, max_count: usize) -> AddResult<Transaction<T>, S::Score> {
 		let index = self.transactions.len();
-		if index == max_count {
+		if index == max_count && !scoring.should_ignore_sender_limit(&tx) {
 			let min_score = self.scores[index - 1].clone();
 			AddResult::TooCheapToEnter(tx, min_score)
 		} else {
diff --git a/util/version/Cargo.toml b/util/version/Cargo.toml
index 24dfec8b0..b5485eeaf 100644
--- a/util/version/Cargo.toml
+++ b/util/version/Cargo.toml
@@ -3,7 +3,7 @@
 [package]
 name = "parity-version"
 # NOTE: this value is used for Parity version string (via env CARGO_PKG_VERSION)
-version = "1.11.7"
+version = "1.11.8"
 authors = ["Parity Technologies <admin@parity.io>"]
 build = "build.rs"