[beta] Kovan HF (#7234)

* Kovan HF.

* Bump version.

* Fix aura difficulty race (#7198)

* Fix Aura difficulty race

* fix test key

* extract out score calculation

* fix build

* Update kovan HF block number.

* Add missing byzantium builtins.

* Bump installers versions.

* Increase allowed time drift to 10s. (#7238)

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 description = "Parity Ethereum client"
 name = "parity"
-version = "1.8.3"
+version = "1.8.4"
 license = "GPL-3.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 build = "build.rs"

dapps/node-health/src/time.rs

@@ -193,7 +193,7 @@ const UPDATE_TIMEOUT_ERR_SECS: u64 = 60;
 const UPDATE_TIMEOUT_INCOMPLETE_SECS: u64 = 10;
 
 /// Maximal valid time drift.
-pub const MAX_DRIFT: i64 = 500;
+pub const MAX_DRIFT: i64 = 10_000;
 
 type BoxFuture<A, B> = Box<Future<Item = A, Error = B> + Send>;
 

ethcore/res/ethereum/kovan.json

@@ -24,8 +24,8 @@
 				},
 				"validateScoreTransition": 1000000,
 				"validateStepTransition": 1500000,
-				"maximumUncleCountTransition": 10000000,
-				"maximumUncleCount": 2
+				"maximumUncleCountTransition": 5100000,
+				"maximumUncleCount": 0
 			}
 		}
 	},
@@ -39,7 +39,11 @@
 		"forkCanonHash": "0x0a66d93c2f727dca618fabaf70c39b37018c73d78b939d8b11efbbd09034778f",
 		"validateReceiptsTransition" : 1000000,
 		"eip155Transition": 1000000,
-		"validateChainIdTransition": 1000000
+		"validateChainIdTransition": 1000000,
+		"eip140Transition": 5100000,
+		"eip211Transition": 5100000,
+		"eip214Transition": 5100000,
+		"eip658Transition": 5100000
 	},
 	"genesis": {
 		"seal": {
@@ -56,6 +60,10 @@
 		"0x0000000000000000000000000000000000000002": { "balance": "1", "builtin": { "name": "sha256", "pricing": { "linear": { "base": 60, "word": 12 } } } },
 		"0x0000000000000000000000000000000000000003": { "balance": "1", "builtin": { "name": "ripemd160", "pricing": { "linear": { "base": 600, "word": 120 } } } },
 		"0x0000000000000000000000000000000000000004": { "balance": "1", "builtin": { "name": "identity", "pricing": { "linear": { "base": 15, "word": 3 } } } },
+		"0x0000000000000000000000000000000000000005": { "builtin": { "name": "modexp", "activate_at": 5100000, "pricing": { "modexp": { "divisor": 20 } } } },
+		"0x0000000000000000000000000000000000000006": { "builtin": { "name": "alt_bn128_add", "activate_at": 5100000, "pricing": { "linear": { "base": 500, "word": 0 } } } },
+		"0x0000000000000000000000000000000000000007": { "builtin": { "name": "alt_bn128_mul", "activate_at": 5100000, "pricing": { "linear": { "base": 40000, "word": 0 } } } },
+		"0x0000000000000000000000000000000000000008": { "builtin": { "name": "alt_bn128_pairing", "activate_at": 5100000, "pricing": { "alt_bn128_pairing": { "base": 100000, "pair": 80000 } } } },
 		"0x00521965e7bd230323c423d96c657db5b79d099f": { "balance": "1606938044258990275541962092341162602522202993782792835301376" }
 	},
 	"nodes": [