From 49eaab967d748d696420434ba6a0e851f3030f1f Mon Sep 17 00:00:00 2001
From: Xiliang Chen <xlchen1291@gmail.com>
Date: Tue, 26 May 2020 16:04:23 +1200
Subject: [PATCH] update to Substrate 2.0 (#246)

* update to Substrate 2.0

* update for oracle
---
 Cargo.lock                                    | 1003 ++++++++++-------
 Cargo.toml                                    |   71 +-
 inspect/Cargo.toml                            |   12 +-
 modules/accounts/Cargo.toml                   |   18 +-
 modules/accounts/src/mock.rs                  |   11 +-
 modules/airdrop/Cargo.toml                    |   10 +-
 modules/airdrop/src/mock.rs                   |    1 +
 modules/auction_manager/Cargo.toml            |   14 +-
 .../auction_manager/benchmarking/Cargo.toml   |   18 +-
 .../auction_manager/benchmarking/src/mock.rs  |    1 +
 modules/auction_manager/src/mock.rs           |    1 +
 modules/cdp_engine/Cargo.toml                 |   16 +-
 modules/cdp_engine/benchmarking/Cargo.toml    |   18 +-
 modules/cdp_engine/benchmarking/src/mock.rs   |    1 +
 modules/cdp_engine/src/mock.rs                |    1 +
 modules/cdp_treasury/Cargo.toml               |   16 +-
 modules/cdp_treasury/src/mock.rs              |    1 +
 modules/dex/Cargo.toml                        |   16 +-
 modules/dex/rpc/Cargo.toml                    |    6 +-
 modules/dex/rpc/runtime-api/Cargo.toml        |    6 +-
 modules/dex/src/mock.rs                       |    1 +
 modules/emergency_shutdown/Cargo.toml         |   14 +-
 .../benchmarking/Cargo.toml                   |   18 +-
 .../benchmarking/src/mock.rs                  |    1 +
 modules/emergency_shutdown/src/mock.rs        |    1 +
 modules/homa/Cargo.toml                       |    6 +-
 modules/homa_treasury/Cargo.toml              |   12 +-
 modules/honzon/Cargo.toml                     |   14 +-
 modules/honzon/benchmarking/Cargo.toml        |   18 +-
 modules/honzon/benchmarking/src/mock.rs       |    1 +
 modules/honzon/src/mock.rs                    |    1 +
 modules/loans/Cargo.toml                      |   14 +-
 modules/loans/src/mock.rs                     |    1 +
 modules/nominees_election/Cargo.toml          |   14 +-
 modules/nominees_election/src/mock.rs         |    1 +
 modules/polkadot_bridge/Cargo.toml            |   12 +-
 modules/prices/Cargo.toml                     |   12 +-
 modules/prices/src/mock.rs                    |    1 +
 modules/primitives/Cargo.toml                 |    2 +-
 modules/staking_pool/Cargo.toml               |   14 +-
 modules/staking_pool/rpc/Cargo.toml           |    6 +-
 .../staking_pool/rpc/runtime-api/Cargo.toml   |    6 +-
 modules/staking_pool/src/mock.rs              |    1 +
 modules/support/Cargo.toml                    |    6 +-
 modules/template/Cargo.toml                   |   10 +-
 orml                                          |    2 +-
 runtime/Cargo.toml                            |   74 +-
 runtime/src/lib.rs                            |   14 +-
 src/chain_spec.rs                             |    8 +-
 src/command.rs                                |    1 +
 src/rpc.rs                                    |    9 +-
 src/service.rs                                |   95 +-
 utilities/Cargo.toml                          |    8 +-
 53 files changed, 913 insertions(+), 726 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index a1695fca8a..5a1f835c0b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -46,6 +46,7 @@ dependencies = [
  "sc-network",
  "sc-offchain",
  "sc-rpc",
+ "sc-rpc-api",
  "sc-service",
  "sc-telemetry",
  "sc-transaction-pool",
@@ -162,9 +163,9 @@ dependencies = [
 
 [[package]]
 name = "addr2line"
-version = "0.12.0"
+version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "456d75cbb82da1ad150c8a9d97285ffcd21c9931dcb11e995903e7d75141b38b"
+checksum = "a49806b9dadc843c61e7c97e72490ad7f7220ae249012fbda9ad0609457c0543"
 dependencies = [
  "gimli 0.21.0",
 ]
@@ -228,18 +229,6 @@ version = "1.0.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "85bb70cc08ec97ca5450e6eba421deeea5f172c0fc61f78b5357b2a8e8be195f"
 
-[[package]]
-name = "app_dirs"
-version = "1.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e73a24bad9bd6a94d6395382a6c69fe071708ae4409f763c5475e14ee896313d"
-dependencies = [
- "ole32-sys",
- "shell32-sys",
- "winapi 0.2.8",
- "xdg",
-]
-
 [[package]]
 name = "approx"
 version = "0.3.2"
@@ -292,7 +281,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0d0864d84b8e07b145449be9a8537db86bf9de5ce03b913214694643b4743502"
 dependencies = [
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -301,20 +290,30 @@ version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7deb0a829ca7bcfaf5da70b073a8d128619259a7be8216a355e23f00763059e5"
 
+[[package]]
+name = "async-macros"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e421d59b24c1feea2496e409b3e0a8de23e5fc130a2ddc0b012e551f3b272bba"
+dependencies = [
+ "futures-core-preview",
+ "pin-utils",
+]
+
 [[package]]
 name = "async-std"
-version = "1.5.0"
+version = "0.99.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "538ecb01eb64eecd772087e5b6f7540cbc917f047727339a472dafed2185b267"
+checksum = "44501a9f7961bb539b67be0c428b3694e26557046a52759ca7eaf790030a64cc"
 dependencies = [
- "async-task",
- "broadcaster",
- "crossbeam-channel",
+ "async-macros",
+ "async-task 1.3.1",
+ "crossbeam-channel 0.3.9",
  "crossbeam-deque",
- "crossbeam-utils",
+ "crossbeam-utils 0.6.6",
  "futures-core",
  "futures-io",
- "futures-timer 2.0.2",
+ "futures-timer 1.0.3",
  "kv-log-macro",
  "log",
  "memchr",
@@ -327,6 +326,30 @@ dependencies = [
  "slab",
 ]
 
+[[package]]
+name = "async-std"
+version = "1.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a45cee2749d880d7066e328a7e161c7470ced883b2fd000ca4643e9f1dd5083a"
+dependencies = [
+ "async-task 3.0.0",
+ "crossbeam-utils 0.7.2",
+ "futures-channel",
+ "futures-core",
+ "futures-io",
+ "futures-timer 3.0.2",
+ "kv-log-macro",
+ "log",
+ "memchr",
+ "num_cpus",
+ "once_cell",
+ "pin-project-lite",
+ "pin-utils",
+ "slab",
+ "smol",
+ "wasm-bindgen-futures",
+]
+
 [[package]]
 name = "async-task"
 version = "1.3.1"
@@ -337,6 +360,12 @@ dependencies = [
  "winapi 0.3.8",
 ]
 
+[[package]]
+name = "async-task"
+version = "3.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c17772156ef2829aadc587461c7753af20b7e8db1529bc66855add962a3b35d3"
+
 [[package]]
 name = "async-tls"
 version = "0.7.0"
@@ -415,9 +444,9 @@ dependencies = [
 
 [[package]]
 name = "bindgen"
-version = "0.53.2"
+version = "0.53.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6bb26d6a69a335b8cb0e7c7e9775cd5666611dc50a37177c3f2cedcfc040e8c8"
+checksum = "c72a978d268b1d70b0e963217e60fdabd9523a941457a6c42a7315d15c7e89e5"
 dependencies = [
  "bitflags",
  "cexpr",
@@ -524,20 +553,6 @@ dependencies = [
  "byte-tools",
 ]
 
-[[package]]
-name = "broadcaster"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9c972e21e0d055a36cf73e4daae870941fe7a8abcd5ac3396aab9e4c126bd87"
-dependencies = [
- "futures-channel",
- "futures-core",
- "futures-sink",
- "futures-util",
- "parking_lot 0.10.2",
- "slab",
-]
-
 [[package]]
 name = "bs58"
 version = "0.3.1"
@@ -602,9 +617,9 @@ checksum = "4964518bd3b4a8190e832886cdc0da9794f12e8e6c1613a9e90ff331c4c8724b"
 
 [[package]]
 name = "cc"
-version = "1.0.53"
+version = "1.0.54"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "404b1fe4f65288577753b17e3b36a04596ee784493ec249bf81c7f2d2acd751c"
+checksum = "7bbb73db36c1246e9034e307d0fba23f9a2e251faa47ade70c1bd252220c8311"
 dependencies = [
  "jobserver",
 ]
@@ -831,13 +846,36 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "crossbeam"
+version = "0.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "69323bff1fb41c635347b8ead484a5ca6c3f11914d784170b158d8449ab07f8e"
+dependencies = [
+ "cfg-if",
+ "crossbeam-channel 0.4.2",
+ "crossbeam-deque",
+ "crossbeam-epoch",
+ "crossbeam-queue",
+ "crossbeam-utils 0.7.2",
+]
+
+[[package]]
+name = "crossbeam-channel"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c8ec7fcd21571dc78f96cc96243cab8d8f035247c3efd16c687be154c3fa9efa"
+dependencies = [
+ "crossbeam-utils 0.6.6",
+]
+
 [[package]]
 name = "crossbeam-channel"
 version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cced8691919c02aac3cb0a1bc2e9b73d89e832bf9a06fc579d4e71b68a2da061"
 dependencies = [
- "crossbeam-utils",
+ "crossbeam-utils 0.7.2",
  "maybe-uninit",
 ]
 
@@ -848,7 +886,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9f02af974daeee82218205558e51ec8768b48cf524bd01d550abe5573a608285"
 dependencies = [
  "crossbeam-epoch",
- "crossbeam-utils",
+ "crossbeam-utils 0.7.2",
  "maybe-uninit",
 ]
 
@@ -860,7 +898,7 @@ checksum = "058ed274caafc1f60c4997b5fc07bf7dc7cca454af7c6e81edffe5f33f70dace"
 dependencies = [
  "autocfg 1.0.0",
  "cfg-if",
- "crossbeam-utils",
+ "crossbeam-utils 0.7.2",
  "lazy_static",
  "maybe-uninit",
  "memoffset",
@@ -874,7 +912,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c695eeca1e7173472a32221542ae469b3e9aac3a4fc81f7696bcad82029493db"
 dependencies = [
  "cfg-if",
- "crossbeam-utils",
+ "crossbeam-utils 0.7.2",
+]
+
+[[package]]
+name = "crossbeam-utils"
+version = "0.6.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "04973fa96e96579258a5091af6003abde64af786b860f18622b82e026cca60e6"
+dependencies = [
+ "cfg-if",
+ "lazy_static",
 ]
 
 [[package]]
@@ -928,9 +976,9 @@ dependencies = [
 
 [[package]]
 name = "data-encoding"
-version = "2.2.0"
+version = "2.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "11c0346158a19b3627234e15596f5e465c360fcdb97d817bcb255e0510f5a788"
+checksum = "72aa14c04dfae8dd7d8a2b1cb7ca2152618cd01336dbfe704b8dcbf8d41dbd69"
 
 [[package]]
 name = "derive_more"
@@ -940,7 +988,7 @@ checksum = "2127768764f1556535c01b5326ef94bd60ff08dcfbdc544d53e69ed155610f5d"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -1036,7 +1084,7 @@ checksum = "946ee94e3dbf58fdd324f9ce245c7b238d46a66f00e86a020b71996349e46cce"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -1130,7 +1178,7 @@ checksum = "aa4da3c766cd7a0db8242e326e9e4e081edd567072893ed320008189715366a4"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
  "synstructure",
 ]
 
@@ -1219,18 +1267,18 @@ checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
 
 [[package]]
 name = "fork-tree"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e085ec973163e0c957a3e25beddb97944689ea526f057a4b4592728ab45a357a"
+checksum = "96d72d90bd5a8711d59def3f8950f2ca374850dbe3b0043f14a7234e0b359b8a"
 dependencies = [
  "parity-scale-codec",
 ]
 
 [[package]]
 name = "frame-benchmarking"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4d146476da2981e83811578fd5e21f84187f42393d23e1ce2fd4a14870e760f1"
+checksum = "ffbf4811157937291a8060c0a34c0c5d53333918725def286baa625c3f149469"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -1246,9 +1294,9 @@ dependencies = [
 
 [[package]]
 name = "frame-benchmarking-cli"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d6883afdada136802e51273ae7d6ebc03428f564fa8467c76a6d4c20dc5d6c9f"
+checksum = "eb389a267d86c911b93f7fcf10192c2a540781695b3d426fede01be864f7d0e6"
 dependencies = [
  "frame-benchmarking",
  "parity-scale-codec",
@@ -1265,9 +1313,9 @@ dependencies = [
 
 [[package]]
 name = "frame-executive"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ad6747f1e57d9074911ddfa2c36506baa70895aba99a2d63293aaff4c8f5d788"
+checksum = "686e4e6b9aa08c7d17c455019bd5b188b314462f08b22b0765261adcf565861b"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -1281,9 +1329,9 @@ dependencies = [
 
 [[package]]
 name = "frame-metadata"
-version = "11.0.0-alpha.8"
+version = "11.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "60b1f439f895a2969285d24d9e8903c2183a3378ca6ce58f1ffe4fa8cc7e3e40"
+checksum = "f2c89262e407f0d2d498ae4abedbd874afb705c9c7fde59e5a027be268eb574f"
 dependencies = [
  "parity-scale-codec",
  "serde",
@@ -1293,9 +1341,9 @@ dependencies = [
 
 [[package]]
 name = "frame-support"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "801c1c348d96f817484b57250a7adf82c6e7d6efd90cc39c553b3bdad3a05cb2"
+checksum = "39726841194dad8d255a4cc204caacddcae276347a0370124d434fc787dc9c2d"
 dependencies = [
  "bitmask",
  "frame-metadata",
@@ -1306,6 +1354,7 @@ dependencies = [
  "parity-scale-codec",
  "paste",
  "serde",
+ "smallvec 1.4.0",
  "sp-arithmetic",
  "sp-core",
  "sp-inherents",
@@ -1318,45 +1367,45 @@ dependencies = [
 
 [[package]]
 name = "frame-support-procedural"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ede36e595bf4deb14b39e3852c42572c63e87af587c10d3f034296175da18c47"
+checksum = "01de227b018d4a8d3508108a00f5f4446eea751c3180dbcdf59cd85f49e48afd"
 dependencies = [
  "frame-support-procedural-tools",
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
 name = "frame-support-procedural-tools"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5ba02050eafbb4ae7751e9753ece93527e1c49902731517cb201463eef7f0a11"
+checksum = "064b7f99c7407aac9d4d48a699516e315209ad28fd9d4d9a791225878dbd3d7c"
 dependencies = [
  "frame-support-procedural-tools-derive",
  "proc-macro-crate",
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
 name = "frame-support-procedural-tools-derive"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "37e52653168aa702585a80016110a9ea6889f0f38300c3233c50f0e2e7feefa5"
+checksum = "ced9dc0943b624756a030c2692cb79c2e7935330b12ad7fb9e3b5e9488b4120c"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
 name = "frame-system"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d8f2f6a94c034bbd2348771cd2c0b3a258ea8f240de2365ff9554764458059af"
+checksum = "73f7492c9edfb9f1ed5c7aa73f82d2a43af3d93feae6c535aefea0664462cc7c"
 dependencies = [
  "frame-support",
  "impl-trait-for-tuples",
@@ -1371,9 +1420,9 @@ dependencies = [
 
 [[package]]
 name = "frame-system-rpc-runtime-api"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70a875054d7de286f58109000a05ffabf72512e9ba8227b47c0f295179d7f98e"
+checksum = "66f50dd4e6a376582bd875f9287b3b322a358162cffbd1e82b2d10c9bcad62dd"
 dependencies = [
  "parity-scale-codec",
  "sp-api",
@@ -1524,7 +1573,7 @@ dependencies = [
  "proc-macro-hack",
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -1542,6 +1591,16 @@ dependencies = [
  "once_cell",
 ]
 
+[[package]]
+name = "futures-timer"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7946248e9429ff093345d3e8fdf4eb0f9b2d79091611c9c14f744971a6f8be45"
+dependencies = [
+ "futures-core-preview",
+ "pin-utils",
+]
+
 [[package]]
 name = "futures-timer"
 version = "2.0.2"
@@ -1553,6 +1612,10 @@ name = "futures-timer"
 version = "3.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e64b03909df88034c26dc1547e8970b91f98bdb65165d6a4e9110d94263dbb2c"
+dependencies = [
+ "gloo-timers",
+ "send_wrapper 0.4.0",
+]
 
 [[package]]
 name = "futures-util"
@@ -1686,6 +1749,19 @@ dependencies = [
  "regex",
 ]
 
+[[package]]
+name = "gloo-timers"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "47204a46aaff920a1ea58b11d03dec6f704287d27561724a4631e450654a891f"
+dependencies = [
+ "futures-channel",
+ "futures-core",
+ "js-sys",
+ "wasm-bindgen",
+ "web-sys",
+]
+
 [[package]]
 name = "goblin"
 version = "0.1.3"
@@ -2011,7 +2087,7 @@ checksum = "7ef5550a42e3740a0e71f909d4c861056a284060af885ae7aa6242820f920d9d"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -2069,6 +2145,15 @@ dependencies = [
  "either",
 ]
 
+[[package]]
+name = "itertools"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "284f18f85651fe11e8a991b2adb42cb078325c996ed026d994719efcfca1d54b"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "itoa"
 version = "0.4.5"
@@ -2161,7 +2246,7 @@ dependencies = [
  "proc-macro-crate",
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -2239,9 +2324,9 @@ dependencies = [
 
 [[package]]
 name = "kv-log-macro"
-version = "1.0.5"
+version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2a2d3beed37e5483887d81eb39de6de03a8346531410e1306ca48a9a89bd3a51"
+checksum = "4ff57d6d215f7ca7eb35a9a64d656ba4d9d2bef114d741dc08048e75e2f5d418"
 dependencies = [
  "log",
 ]
@@ -2345,9 +2430,9 @@ checksum = "c7d73b3f436185384286bd8098d17ec07c9a7d2388a6599f824d8502b529702a"
 
 [[package]]
 name = "libp2p"
-version = "0.18.1"
+version = "0.19.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "32ea742c86405b659c358223a8f0f9f5a9eb27bb6083894c6340959b05269662"
+checksum = "057eba5432d3e740e313c6e13c9153d0cb76b4f71bfc2e5242ae5bdb7d41af67"
 dependencies = [
  "bytes 0.5.4",
  "futures 0.3.5",
@@ -2367,7 +2452,7 @@ dependencies = [
  "libp2p-websocket",
  "libp2p-yamux",
  "multihash",
- "parity-multiaddr 0.8.0",
+ "parity-multiaddr 0.9.0",
  "parking_lot 0.10.2",
  "pin-project",
  "smallvec 1.4.0",
@@ -2376,9 +2461,9 @@ dependencies = [
 
 [[package]]
 name = "libp2p-core"
-version = "0.18.0"
+version = "0.19.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1d2c17158c4dca984a77a5927aac6f0862d7f50c013470a415f93be498b5739"
+checksum = "4f5e30dcd8cb13a02ad534e214da234eca1595a76b5788b645dfa5c734d2124b"
 dependencies = [
  "asn1_der",
  "bs58",
@@ -2392,7 +2477,7 @@ dependencies = [
  "log",
  "multihash",
  "multistream-select",
- "parity-multiaddr 0.8.0",
+ "parity-multiaddr 0.9.0",
  "parking_lot 0.10.2",
  "pin-project",
  "prost",
@@ -2410,19 +2495,19 @@ dependencies = [
 
 [[package]]
 name = "libp2p-core-derive"
-version = "0.18.0"
+version = "0.19.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "329127858e4728db5ab60c33d5ae352a999325fdf190ed022ec7d3a4685ae2e6"
+checksum = "f09548626b737ed64080fde595e06ce1117795b8b9fc4d2629fa36561c583171"
 dependencies = [
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
 name = "libp2p-dns"
-version = "0.18.0"
+version = "0.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c0d0993481203d68e5ce2f787d033fb0cac6b850659ed6c784612db678977c71"
+checksum = "3cc186d9a941fd0207cf8f08ef225a735e2d7296258f570155e525f6ee732f87"
 dependencies = [
  "futures 0.3.5",
  "libp2p-core",
@@ -2431,9 +2516,9 @@ dependencies = [
 
 [[package]]
 name = "libp2p-identify"
-version = "0.18.0"
+version = "0.19.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a38ca3eb807789e26f41c82ca7cd2b3843c66c5587b8b5f709a2f421f3061414"
+checksum = "6438ed8ca240c7635c9caa3be6c5258bc0058553ae97ba81737f04e5d33804f5"
 dependencies = [
  "futures 0.3.5",
  "libp2p-core",
@@ -2447,9 +2532,9 @@ dependencies = [
 
 [[package]]
 name = "libp2p-kad"
-version = "0.18.0"
+version = "0.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a92cda1fb8149ea64d092a2b99d2bd7a2c309eee38ea322d02e4480bd6ee1759"
+checksum = "41d6c1d5100973527ae70d82687465b17049c1b717a7964de38b8e65000878ff"
 dependencies = [
  "arrayvec 0.5.1",
  "bytes 0.5.4",
@@ -2474,11 +2559,11 @@ dependencies = [
 
 [[package]]
 name = "libp2p-mdns"
-version = "0.18.0"
+version = "0.19.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "41e908d2aaf8ff0ec6ad1f02fe1844fd777fb0b03a68a226423630750ab99471"
+checksum = "51b00163d13f705aae67c427bea0575f8aaf63da6524f9bd4a5a093b8bda0b38"
 dependencies = [
- "async-std",
+ "async-std 0.99.12",
  "data-encoding",
  "dns-parser",
  "either",
@@ -2496,9 +2581,9 @@ dependencies = [
 
 [[package]]
 name = "libp2p-mplex"
-version = "0.18.0"
+version = "0.19.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0832882b06619b2e81d74e71447753ea3c068164a0bca67847d272e856a04a02"
+checksum = "34ce63313ad4bce2d76e54c292a1293ea47a0ebbe16708f1513fa62184992f53"
 dependencies = [
  "bytes 0.5.4",
  "fnv",
@@ -2512,9 +2597,9 @@ dependencies = [
 
 [[package]]
 name = "libp2p-noise"
-version = "0.18.0"
+version = "0.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "918e94a649e1139c24ee9f1f8c1f2adaba6d157b9471af787f2d9beac8c29c77"
+checksum = "84fd504e27b0eadd451e06b67694ef714bd8374044e7db339bb0cdb83755ddf4"
 dependencies = [
  "curve25519-dalek",
  "futures 0.3.5",
@@ -2533,9 +2618,9 @@ dependencies = [
 
 [[package]]
 name = "libp2p-ping"
-version = "0.18.0"
+version = "0.19.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f9bfbf87eebb492d040f9899c5c81c9738730465ac5e78d9b7a7d086d0f07230"
+checksum = "c189cf1dfe4b3f01e2c0fe5e97a6f5df8aeb6f3569e26981015eb7c08015ce5f"
 dependencies = [
  "futures 0.3.5",
  "libp2p-core",
@@ -2548,9 +2633,9 @@ dependencies = [
 
 [[package]]
 name = "libp2p-swarm"
-version = "0.18.1"
+version = "0.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "44ab289ae44cc691da0a6fe96aefa43f26c86c6c7813998e203f6d80f1860f18"
+checksum = "b4a8101a0e0d5f04562137a476bf5f5423cd5bdab2f7e43a75909668e63cb102"
 dependencies = [
  "futures 0.3.5",
  "libp2p-core",
@@ -2563,24 +2648,25 @@ dependencies = [
 
 [[package]]
 name = "libp2p-tcp"
-version = "0.18.0"
+version = "0.19.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b37ea44823d3ed223e4605da94b50177bc520f05ae2452286700549a32d81669"
+checksum = "309f95fce9bec755eff5406f8b822fd3969990830c2b54f752e1fc181d5ace3e"
 dependencies = [
- "async-std",
+ "async-std 0.99.12",
  "futures 0.3.5",
  "futures-timer 3.0.2",
  "get_if_addrs",
  "ipnet",
  "libp2p-core",
  "log",
+ "socket2",
 ]
 
 [[package]]
 name = "libp2p-wasm-ext"
-version = "0.18.0"
+version = "0.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e3ac7dbde0f88cad191dcdfd073b8bae28d01823e8ca313f117b6ecb914160c3"
+checksum = "f59fdbb5706f2723ca108c088b1c7a37f735a8c328021f0508007162627e9885"
 dependencies = [
  "futures 0.3.5",
  "js-sys",
@@ -2592,9 +2678,9 @@ dependencies = [
 
 [[package]]
 name = "libp2p-websocket"
-version = "0.18.0"
+version = "0.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6874c9069ce93d899df9dc7b29f129c706b2a0fdc048f11d878935352b580190"
+checksum = "085fbe4c05c4116c2164ab4d5a521eb6e00516c444f61b3ee9f68c7b1e53580b"
 dependencies = [
  "async-tls",
  "bytes 0.5.4",
@@ -2613,9 +2699,9 @@ dependencies = [
 
 [[package]]
 name = "libp2p-yamux"
-version = "0.18.0"
+version = "0.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "02f91aea50f6571e0bc6c058dc0e9b270afd41ec28dd94e9e4bf607e78b9ab87"
+checksum = "0b305d3a8981e68f11c0e17f2d11d5c52fae95e0d7c283f9e462b5b2dab413b2"
 dependencies = [
  "futures 0.3.5",
  "libp2p-core",
@@ -2710,9 +2796,9 @@ dependencies = [
 
 [[package]]
 name = "lru"
-version = "0.4.3"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0609345ddee5badacf857d4f547e0e5a2e987db77085c24cd887f73573a04237"
+checksum = "9e488db3a9e108382265a30764f43cfc87517322e5d04ae0603b32a33461dca3"
 dependencies = [
  "hashbrown",
 ]
@@ -3368,9 +3454,9 @@ checksum = "0debeb9fcf88823ea64d64e4a815ab1643f33127d995978e099942ce38f25238"
 
 [[package]]
 name = "multihash"
-version = "0.10.1"
+version = "0.11.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "47fbc227f7e2b1cb701f95404579ecb2668abbdd3c7ef7a6cbb3cc0d3b236869"
+checksum = "f75db05d738947aa5389863aadafbcf2e509d7ba099dc2ddcdf4fc66bf7a9e03"
 dependencies = [
  "blake2b_simd",
  "blake2s_simd",
@@ -3389,9 +3475,9 @@ checksum = "d8883adfde9756c1d30b0f519c9b8c502a94b41ac62f696453c37c7fc0a958ce"
 
 [[package]]
 name = "multistream-select"
-version = "0.8.0"
+version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "74cdcf7cfb3402881e15a1f95116cb033d69b33c83d481e1234777f5ef0c3d2c"
+checksum = "991c33683908c588b8f2cf66c221d8f390818c1bdcd13fce55208408e027a796"
 dependencies = [
  "bytes 0.5.4",
  "futures 0.3.5",
@@ -3583,16 +3669,6 @@ version = "0.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9cbca9424c482ee628fa549d9c812e2cd22f1180b9222c9200fdfa6eb31aecb2"
 
-[[package]]
-name = "ole32-sys"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5d2c49021782e5233cd243168edfa8037574afed4eba4bbaf538b3d8d1789d8c"
-dependencies = [
- "winapi 0.2.8",
- "winapi-build",
-]
-
 [[package]]
 name = "once_cell"
 version = "1.4.0"
@@ -3827,27 +3903,25 @@ dependencies = [
 
 [[package]]
 name = "pallet-authorship"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "30053f51607457afb60e38190fec5a234f1303aea44f18fabae6222a518a54cf"
+checksum = "5d46281803743411850c0bd4280797388315022725bbebf15b6e9f254a35324e"
 dependencies = [
  "frame-support",
  "frame-system",
  "impl-trait-for-tuples",
  "parity-scale-codec",
  "sp-authorship",
- "sp-core",
  "sp-inherents",
- "sp-io",
  "sp-runtime",
  "sp-std",
 ]
 
 [[package]]
 name = "pallet-babe"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cc818592d1467681d735917e4d068fabf68f8ddbec4c5cd3a85b5c025434cf66"
+checksum = "7dd438031ed2350e16a5cff6cbda77ee145497e92e84671a3ea3b8611fde0e3c"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3868,25 +3942,24 @@ dependencies = [
 
 [[package]]
 name = "pallet-balances"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "15039f4d4586f34d83588a1cb9dbd74ed0cd9e7c6df4c45da707bd8f3ed235f2"
+checksum = "0b8f3e074b612fe0a33b1719fd4358eb9cd2fd24a0ae8e870cb62683fb673612"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
  "frame-system",
  "parity-scale-codec",
  "serde",
- "sp-io",
  "sp-runtime",
  "sp-std",
 ]
 
 [[package]]
 name = "pallet-collective"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f596a5208d11de9629d8528b180472ef8a6e023b69aed7a1cd1b422804d885d5"
+checksum = "e5c9e1de2693b5f1163e2cb23b06075b901997f1ce65b5f8bbd1f6ddd539c4fd"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -3901,9 +3974,9 @@ dependencies = [
 
 [[package]]
 name = "pallet-finality-tracker"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1bee38fcd8fcc35695fe61bc8ccc71e49264c65d2df95ab8f74bfc5e1e7e663a"
+checksum = "220cf62639ca785b2fcbb5c57d779157796805a1f7e32d0dad3f0fa5701245c3"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3918,9 +3991,9 @@ dependencies = [
 
 [[package]]
 name = "pallet-grandpa"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "76c14a3561e27c636f8012e19b5853af63e0552c6113ba141c34e176b7a129ab"
+checksum = "5a17d1bfc324a694babc0e5bf0c00da3099afc7272e2aa6dfb9a164e68adf479"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3939,9 +4012,9 @@ dependencies = [
 
 [[package]]
 name = "pallet-indices"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "31cf5e1462cab8d3b7fc3c949ca0e30d4414026719a723d266a88526e988b6ec"
+checksum = "bbd779571d2e264cdf6e456d2a42e17c99504cbd407eb3a7d12e0b447a4083ec"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3956,9 +4029,9 @@ dependencies = [
 
 [[package]]
 name = "pallet-membership"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7729e1407241efb7dc570f6bfe1dff53f45b90b330def7ff3720bf9974780c02"
+checksum = "be6c6d0cca434aa85c358ff0e291ce386118cf09f54078c34b228a1065c35270"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3971,9 +4044,9 @@ dependencies = [
 
 [[package]]
 name = "pallet-randomness-collective-flip"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "07e124db9e87cb5213189090346d92ccc603905b011e746b38743c0f7f771aa6"
+checksum = "6d4b3bc9c2fa8fef7ee97bb92dcae78a60cbbae5828a0e131f5f04ffd32b8ee2"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3985,9 +4058,9 @@ dependencies = [
 
 [[package]]
 name = "pallet-recovery"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "036fd68bb70a9b52e0ca31da88c330b69829a287a3975b0ab49a4652bb80f98d"
+checksum = "4345d29305170f34bf30d4882f36879e8eee35703554a3db2cce89d2a0e670b1"
 dependencies = [
  "enumflags2",
  "frame-support",
@@ -4001,9 +4074,9 @@ dependencies = [
 
 [[package]]
 name = "pallet-session"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "11b944b9bc1bee36ae10168134de413c2429da43c163df90c0666afbf5f47f30"
+checksum = "10ac03e07ad6b30430a47bc75c18a364b09b2020d013b64f27ea1b18173af018"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -4011,7 +4084,6 @@ dependencies = [
  "pallet-timestamp",
  "parity-scale-codec",
  "serde",
- "sp-io",
  "sp-runtime",
  "sp-session",
  "sp-staking",
@@ -4021,9 +4093,9 @@ dependencies = [
 
 [[package]]
 name = "pallet-staking"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5f6e7c8723fd3e86a698286d9e3a29d8d022364a9b67b27ca567664ce75e9dc2"
+checksum = "a9d193031c5381d4fb389cf1db2c69a57d514b8d46deb2b4565ddfc73d1cbd53"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -4032,7 +4104,6 @@ dependencies = [
  "parity-scale-codec",
  "serde",
  "sp-application-crypto",
- "sp-core",
  "sp-io",
  "sp-phragmen",
  "sp-runtime",
@@ -4043,21 +4114,21 @@ dependencies = [
 
 [[package]]
 name = "pallet-staking-reward-curve"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea1bf67639cd979e3642aaa77478a8cdeefbd859b95d72d0f2a66c562fb9562c"
+checksum = "96761531dea8290e2ac3e7be08cb3b12af6d63e5fe01b7d309ee35ab56520bf2"
 dependencies = [
  "proc-macro-crate",
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
 name = "pallet-sudo"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9aa24cdbd0916706a764ae81bcb90bdcdc73d94e380b59a48bb195ca1f74e96"
+checksum = "9889c949f6e9403038b9c5f15efeaaa7576fb9f49d0c2cbe9198e96cc088f918"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -4070,9 +4141,9 @@ dependencies = [
 
 [[package]]
 name = "pallet-timestamp"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "249f2f5688bc6c8fb43ceb36ac78d0a92ec0c6862b90c3b6a8bf0b94a2e4d672"
+checksum = "f2cbc1bad543b991b526bff9a5c78af03c1a95f9f2845fe6934b4b05ccd95f47"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -4088,23 +4159,24 @@ dependencies = [
 
 [[package]]
 name = "pallet-transaction-payment"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1ce6987f7e7eb7bd2f13a33416dacc3148ac2e6641cb172a98faef9408179eaf"
+checksum = "cd6a70c9777c441b26fc27bd43b592851652d012691c34ef7c7c5845c19c08aa"
 dependencies = [
  "frame-support",
  "frame-system",
  "pallet-transaction-payment-rpc-runtime-api",
  "parity-scale-codec",
+ "smallvec 1.4.0",
  "sp-runtime",
  "sp-std",
 ]
 
 [[package]]
 name = "pallet-transaction-payment-rpc"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc9f0b87ca51c15924adddabf8a86b322550886b4701100d934e05ac260fcf06"
+checksum = "74efe29e412d6a4a8400effb584557a5d056b6dc24677134618a186095ee6462"
 dependencies = [
  "jsonrpc-core",
  "jsonrpc-core-client",
@@ -4121,9 +4193,9 @@ dependencies = [
 
 [[package]]
 name = "pallet-transaction-payment-rpc-runtime-api"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "df1c5b6c895a1a35669431513d2a953d29e8c5fa04df05c354407de78e567ce3"
+checksum = "dcb8465c1483997cac167cfa0a5a6aa802ed6fbc3c7f00e4b15337f4987d63e2"
 dependencies = [
  "frame-support",
  "parity-scale-codec",
@@ -4135,9 +4207,9 @@ dependencies = [
 
 [[package]]
 name = "pallet-treasury"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d75ca8a0e12bf64a71e0774148eb0f31e73518819d30ac5ffd738702289e86ea"
+checksum = "44dcd7185203536472d59ba5c2cdf84ce45d1fa8a1752961a9e7b260a8f9eefc"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -4150,9 +4222,9 @@ dependencies = [
 
 [[package]]
 name = "pallet-utility"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d93b57387e9f1004cffb08a4b9b805b56659044634ad202ef07589442aa3d916"
+checksum = "9277f433b171621dc13f1cad1ff6ef75dde2bdcaa3051db6c38276c0447485a6"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -4198,9 +4270,9 @@ dependencies = [
 
 [[package]]
 name = "parity-multiaddr"
-version = "0.8.0"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4db35e222f783ef4e6661873f6c165c4eb7b65e0c408349818517d5705c2d7d3"
+checksum = "12ca96399f4a01aa89c59220c4f52ac371940eb4e53e3ce990da796f364bdf69"
 dependencies = [
  "arrayref",
  "bs58",
@@ -4251,7 +4323,7 @@ dependencies = [
  "proc-macro-crate",
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -4283,7 +4355,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f557c32c6d268a07c921471619c0295f5efad3a0e76d4f97a05c091a51d110b2"
 dependencies = [
  "proc-macro2",
- "syn 1.0.22",
+ "syn 1.0.25",
  "synstructure",
 ]
 
@@ -4345,9 +4417,9 @@ dependencies = [
 
 [[package]]
 name = "paste"
-version = "0.1.12"
+version = "0.1.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0a229b1c58c692edcaa5b9b0948084f130f55d2dcc15b02fcc5340b2b4521476"
+checksum = "3431e8f72b90f8a7af91dec890d9814000cb371258e0ec7370d93e085361f531"
 dependencies = [
  "paste-impl",
  "proc-macro-hack",
@@ -4355,14 +4427,14 @@ dependencies = [
 
 [[package]]
 name = "paste-impl"
-version = "0.1.12"
+version = "0.1.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2e0bf239e447e67ff6d16a8bb5e4d4bd2343acf5066061c0e8e06ac5ba8ca68c"
+checksum = "25af5fc872ba284d8d84608bf8a0fa9b5376c96c23f503b007dfd9e34dde5606"
 dependencies = [
  "proc-macro-hack",
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -4401,9 +4473,9 @@ checksum = "d4fd5641d01c8f18a23da7b6fe29298ff4b55afcccdf78973b24cf3175fee32e"
 
 [[package]]
 name = "petgraph"
-version = "0.5.0"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "29c127eea4a29ec6c85d153c59dc1213f33ec74cead30fe4730aecc88cc1fd92"
+checksum = "467d164a6de56270bd7c4d070df81d07beace25012d5103ced4e9ff08d6afdb7"
 dependencies = [
  "fixedbitset",
  "indexmap",
@@ -4411,22 +4483,22 @@ dependencies = [
 
 [[package]]
 name = "pin-project"
-version = "0.4.16"
+version = "0.4.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "81d480cb4e89522ccda96d0eed9af94180b7a5f93fb28f66e1fd7d68431663d1"
+checksum = "edc93aeee735e60ecb40cf740eb319ff23eab1c5748abfdb5c180e4ce49f7791"
 dependencies = [
  "pin-project-internal",
 ]
 
 [[package]]
 name = "pin-project-internal"
-version = "0.4.16"
+version = "0.4.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a82996f11efccb19b685b14b5df818de31c1edcee3daa256ab5775dd98e72feb"
+checksum = "e58db2081ba5b4c93bd6be09c40fd36cb9193a8336c384f3b40012e531aa7e40"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -4441,6 +4513,18 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
+[[package]]
+name = "piper"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6b0deb65f46e873ba8aa7c6a8dbe3f23cb1bf59c339a81a1d56361dde4d66ac8"
+dependencies = [
+ "crossbeam-utils 0.7.2",
+ "futures-io",
+ "futures-sink",
+ "futures-util",
+]
+
 [[package]]
 name = "pkg-config"
 version = "0.3.17"
@@ -4495,7 +4579,7 @@ dependencies = [
  "proc-macro-error-attr",
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
  "version_check",
 ]
 
@@ -4507,16 +4591,16 @@ checksum = "4f5444ead4e9935abd7f27dc51f7e852a0569ac888096d5ec2499470794e2e53"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
  "syn-mid",
  "version_check",
 ]
 
 [[package]]
 name = "proc-macro-hack"
-version = "0.5.15"
+version = "0.5.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0d659fe7c6d27f25e9d80a1a094c223f5246f6a6596453e09d7229bf42750b63"
+checksum = "7e0456befd48169b9f13ef0f0ad46d492cf9d2dbb918bcf38e01eed4ce3ec5e4"
 
 [[package]]
 name = "proc-macro-nested"
@@ -4526,9 +4610,9 @@ checksum = "8e946095f9d3ed29ec38de908c22f95d9ac008e424c7bcae54c75a79c527c694"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.13"
+version = "1.0.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "53f5ffe53a6b28e37c9c1ce74893477864d64f74778a93a4beb43c8fa167f639"
+checksum = "1502d12e458c49a4c9cbff560d0fe0060c252bc29799ed94ca2ed4bb665a0101"
 dependencies = [
  "unicode-xid 0.2.0",
 ]
@@ -4580,7 +4664,7 @@ checksum = "02b10678c913ecbd69350e8535c3aef91a8676c0773fc1d7b95cdd196d7f2f26"
 dependencies = [
  "bytes 0.5.4",
  "heck",
- "itertools",
+ "itertools 0.8.2",
  "log",
  "multimap",
  "petgraph",
@@ -4597,10 +4681,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "537aa19b95acde10a12fec4301466386f757403de4cd4e5b4fa78fb5ecb18f72"
 dependencies = [
  "anyhow",
- "itertools",
+ "itertools 0.8.2",
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -4886,7 +4970,7 @@ checksum = "08a89b46efaf957e52b18062fb2f4660f8b8a4dde1807ca002690868ef2c85a9"
 dependencies = [
  "crossbeam-deque",
  "crossbeam-queue",
- "crossbeam-utils",
+ "crossbeam-utils 0.7.2",
  "lazy_static",
  "num_cpus",
 ]
@@ -4934,7 +5018,7 @@ checksum = "602eb59cda66fcb9aec25841fb76bc01d2b34282dcdd705028da297db6f3eec8"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -5037,7 +5121,7 @@ dependencies = [
  "base64 0.11.0",
  "blake2b_simd",
  "constant_time_eq",
- "crossbeam-utils",
+ "crossbeam-utils 0.7.2",
 ]
 
 [[package]]
@@ -5120,9 +5204,9 @@ dependencies = [
 
 [[package]]
 name = "sc-basic-authorship"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4642892f8b92ed7a3402af425fcabed35652813dbd3b1689d8808a3a59859e80"
+checksum = "ee85bbc540909244f78dd9325eee53fa755d8476939f96fa6d3c03adc4494e55"
 dependencies = [
  "futures 0.3.5",
  "futures-timer 3.0.2",
@@ -5130,6 +5214,7 @@ dependencies = [
  "parity-scale-codec",
  "sc-block-builder",
  "sc-client-api",
+ "sc-proposer-metrics",
  "sc-telemetry",
  "sp-api",
  "sp-blockchain",
@@ -5138,14 +5223,15 @@ dependencies = [
  "sp-inherents",
  "sp-runtime",
  "sp-transaction-pool",
+ "substrate-prometheus-endpoint",
  "tokio-executor 0.2.0-alpha.6",
 ]
 
 [[package]]
 name = "sc-block-builder"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2f1b5be3c97274faa61528af80d84a7f881c41b84bfeb473d328848327c458ca"
+checksum = "e3605c5c7821eff9d990ccc7e4abfc06ae92315f3b0648c04c367c7c1e932f08"
 dependencies = [
  "parity-scale-codec",
  "sc-client-api",
@@ -5160,9 +5246,9 @@ dependencies = [
 
 [[package]]
 name = "sc-chain-spec"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ecf7e2267f42d66cf1b5894ed26cb0f93bc86ec20b2671d329754c41ccc8517f"
+checksum = "c85937b5b8fcda9213e193abdc3dfd60f9091a82b4747266f4fc95b290fba8ef"
 dependencies = [
  "impl-trait-for-tuples",
  "sc-chain-spec-derive",
@@ -5177,28 +5263,27 @@ dependencies = [
 
 [[package]]
 name = "sc-chain-spec-derive"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f5570c450f51a23eade7c9c41d7b57d7e993ffd6f2965c595a816ad0c0158076"
+checksum = "409266980723c92fc5c60b4876b81f489541224cc0c3c177a48239d179fe34c4"
 dependencies = [
  "proc-macro-crate",
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
 name = "sc-cli"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2da02165525fde48d931ac183305aace5238f9f2c82d05db893958b5d76d3395"
+checksum = "397274fb2a7219b60e7ee2dce3b46f241a2f7d2c9b740b642455cf6758c39491"
 dependencies = [
  "ansi_term 0.12.1",
- "app_dirs",
  "atty",
  "chrono",
- "clap",
  "derive_more",
+ "directories",
  "env_logger",
  "fdlimit",
  "futures 0.3.5",
@@ -5232,9 +5317,9 @@ dependencies = [
 
 [[package]]
 name = "sc-client-api"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "99718588c70ae9dcbb8d4f2b4a232d9608c3b4e450c84ca651863bc3b92fdca9"
+checksum = "10a2226cd81bf100bcffa537ef35576e141690f8225948218ab0e47f7b6b6703"
 dependencies = [
  "derive_more",
  "fnv",
@@ -5269,9 +5354,9 @@ dependencies = [
 
 [[package]]
 name = "sc-client-db"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b0987a05f0c4905197eec4e9819657fe6e107550deb6afc5895009c9d0814fac"
+checksum = "74e1a2e58710294dfa825a56b77f544d7c279bef7216bdb3b41028bab904dd84"
 dependencies = [
  "blake2-rfc",
  "hash-db",
@@ -5299,9 +5384,9 @@ dependencies = [
 
 [[package]]
 name = "sc-consensus"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "40a357fdfbd672ad59aeccbcefa07e94853c83652bb6018080e4345cdeceb52c"
+checksum = "0d76b9dcebc9c76fc979f954f9e2f4375140a5da1b118a129bde9423c2f6939d"
 dependencies = [
  "sc-client-api",
  "sp-blockchain",
@@ -5311,9 +5396,9 @@ dependencies = [
 
 [[package]]
 name = "sc-consensus-babe"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3afb94dd52a4f9d5ca73ab6a00590a785bc23b7616e5047b15f8cb50da295034"
+checksum = "49e104a842806e28928868fad89111333d5d01429ce268a55ced7def50fefa98"
 dependencies = [
  "derive_more",
  "fork-tree",
@@ -5354,9 +5439,9 @@ dependencies = [
 
 [[package]]
 name = "sc-consensus-babe-rpc"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c26fe2a4998798efcc8171db68ea5a59d5080fc5bbf39d8f44e31e7fd9d7f220"
+checksum = "0b4b20e603bf48a54b393d2411c054a551f088d7062b2051cefbae5f9bb98ad4"
 dependencies = [
  "derive_more",
  "futures 0.3.5",
@@ -5366,6 +5451,7 @@ dependencies = [
  "sc-consensus-babe",
  "sc-consensus-epochs",
  "sc-keystore",
+ "sc-rpc-api",
  "serde",
  "sp-api",
  "sp-blockchain",
@@ -5377,9 +5463,9 @@ dependencies = [
 
 [[package]]
 name = "sc-consensus-epochs"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "832860ddc947c2e50f3574e8c8808e0047478d70cc2320b77231f406e84fbf36"
+checksum = "c84e000720412831a814c38291ad4d9a542846833a5ed22480e5b13dec451170"
 dependencies = [
  "fork-tree",
  "parity-scale-codec",
@@ -5391,9 +5477,9 @@ dependencies = [
 
 [[package]]
 name = "sc-consensus-slots"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "40e2a4501fc2b0f9dd45a7a2ce2efeed282de6a3fa7d2e6587aabbe6ff6e876e"
+checksum = "eb8cb8192ef8f2bd107bcdf85b7d742cc56dc61b218597c06c776e71f26feaf3"
 dependencies = [
  "futures 0.3.5",
  "futures-timer 3.0.2",
@@ -5414,9 +5500,9 @@ dependencies = [
 
 [[package]]
 name = "sc-consensus-uncles"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "27d27643a13a7ae005d59c2d4b662d4a957225c97e2baff063cb0610f8411046"
+checksum = "f20e2198a4c5262566bdd4b85ad768347216656ae26a6594aa7771d2a0d65bdb"
 dependencies = [
  "log",
  "sc-client-api",
@@ -5429,9 +5515,9 @@ dependencies = [
 
 [[package]]
 name = "sc-executor"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3df607e93136fd953d4b0c0965e50fe4e8096e05113a3926ee0e4ef3f96419e0"
+checksum = "8e4b59e1a69d04b0c7586b4e5d764252ecf92895cba1e1ba5b2c97e3e455f2a5"
 dependencies = [
  "derive_more",
  "lazy_static",
@@ -5458,9 +5544,9 @@ dependencies = [
 
 [[package]]
 name = "sc-executor-common"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "120fac2a31f3e1db6666a4f83ed496d2de2538c6395669eecf160882996571d9"
+checksum = "a3571d2588896aaa490c7088be5de6bcf8c36567851c4318826e886d27676ff7"
 dependencies = [
  "derive_more",
  "log",
@@ -5476,9 +5562,9 @@ dependencies = [
 
 [[package]]
 name = "sc-executor-wasmi"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "098dca91b82fec02aa9b6910d62ec1b4e9fd59c8164f5ea931f5ddd4a2030486"
+checksum = "6e5a6b7135e2300f2a85f2947e1716f3678184a423efd59573caa69ee6d1949f"
 dependencies = [
  "log",
  "parity-scale-codec",
@@ -5492,9 +5578,9 @@ dependencies = [
 
 [[package]]
 name = "sc-executor-wasmtime"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2137d121f2ed1cb84081eb8577f53de705393cda4d582e1c9d49001da084c977"
+checksum = "b9e4f3ca111bfe8e96fa15a9271a96d6ac551fa299499d03215714cfc7e4b7c4"
 dependencies = [
  "cranelift-codegen",
  "cranelift-wasm",
@@ -5514,9 +5600,9 @@ dependencies = [
 
 [[package]]
 name = "sc-finality-grandpa"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6e482398ef943250e9b87db96073a65315a8346f335f3cc423f07cdcebed8495"
+checksum = "aad6acf40942450e756891d101f2a400388af367dc4aa1f9a27dc8aef5075277"
 dependencies = [
  "assert_matches",
  "derive_more",
@@ -5552,9 +5638,9 @@ dependencies = [
 
 [[package]]
 name = "sc-finality-grandpa-rpc"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "331a768eb8184f081249d65ba60205f6c1c773499a352c02cb93364ab92e04c6"
+checksum = "e00622bd858306e1f9a4e522f373e9e02ac4873d95e022525810ce648ee3bc5c"
 dependencies = [
  "derive_more",
  "finality-grandpa",
@@ -5570,9 +5656,9 @@ dependencies = [
 
 [[package]]
 name = "sc-informant"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "de60dbb9c7a2fb2ae7135bedfafff120707ce6360531cc7253765508854ff663"
+checksum = "d2a0cdf03350a940b5a8ef7c33adcfa95352d54a3c9c51791a2f1d0f8adf8460"
 dependencies = [
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  "futures 0.3.5",
@@ -5588,9 +5674,9 @@ dependencies = [
 
 [[package]]
 name = "sc-keystore"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a95c793b121902e1b9c25f1462b6899a8386cb471ddb539560d7e502cb38f8dc"
+checksum = "d343fe5e352ca6a5d3db4e60c333d9248cc0965845a46724f0633c09346bb9d5"
 dependencies = [
  "derive_more",
  "hex",
@@ -5604,11 +5690,12 @@ dependencies = [
 
 [[package]]
 name = "sc-network"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c86c05925dd8ed72e932b6eee59651fa3815d1ea434bfd482df9b12b66beaa7"
+checksum = "7e767860114bdd61c67de4d82cd3cc40c9eaa1ae6d9909ad52f89dc605dd63bd"
 dependencies = [
  "bitflags",
+ "bs58",
  "bytes 0.5.4",
  "derive_more",
  "either",
@@ -5656,9 +5743,9 @@ dependencies = [
 
 [[package]]
 name = "sc-network-gossip"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "07715f7e7c253b1b1eabe0c0408e1dbd662f07eddc46e4507fee6f25992f227d"
+checksum = "92948fb2a7a3ebce70b62bb1cec36b963edcf9527990d4e40d37c95285144b4c"
 dependencies = [
  "futures 0.3.5",
  "futures-timer 3.0.2",
@@ -5672,9 +5759,9 @@ dependencies = [
 
 [[package]]
 name = "sc-offchain"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "30bf54ec6d3dd27bd26b8f2332557b7946785767ee4d251af8b923964b22ee24"
+checksum = "03b00e31f6bad10e758cb5535d6ae82bb2085969134e8ea33779df23222a89a9"
 dependencies = [
  "bytes 0.5.4",
  "fnv",
@@ -5700,9 +5787,9 @@ dependencies = [
 
 [[package]]
 name = "sc-peerset"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dbf30d5e8501147b010703c0b83cc38bf13b297c663b220a99236fcef665a7c9"
+checksum = "ebeb54176cfd98f586f0f1bf2fd045a8f103505ee08147bd0cface6400bb6d23"
 dependencies = [
  "futures 0.3.5",
  "libp2p",
@@ -5712,11 +5799,21 @@ dependencies = [
  "wasm-timer",
 ]
 
+[[package]]
+name = "sc-proposer-metrics"
+version = "0.8.0-rc1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0c212ea7ce2b08eb513e212817782c598937d2eb7c5cc4c8c500ef54e3e56145"
+dependencies = [
+ "log",
+ "substrate-prometheus-endpoint",
+]
+
 [[package]]
 name = "sc-rpc"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5503c0545d7a79a0d05bcb41bb35c5b3b5d28b350ddf168cb89e6141371e3a7f"
+checksum = "0c023d9770da6667e2653dca79136e8f26124c35e52a4123def4447b6a353d43"
 dependencies = [
  "futures 0.3.5",
  "hash-db",
@@ -5747,9 +5844,9 @@ dependencies = [
 
 [[package]]
 name = "sc-rpc-api"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "51dd4ac4f4e0643146d0bcfbf8c0ad02d11c94834a4860b2417868c590730f7b"
+checksum = "fac9da8779cad5f8ed053785c9b3752656bd47bb4d4efd2a9408d8785aa8052a"
 dependencies = [
  "derive_more",
  "futures 0.3.5",
@@ -5772,9 +5869,9 @@ dependencies = [
 
 [[package]]
 name = "sc-rpc-server"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f7d029f5a71c6ef043c1a6b3d8cc2d99e6dac44c80869032dd2894dd4c023677"
+checksum = "928418c611d54f5a4cb1a5bda7c6aef0daacdca1b4e70e68ae3cc37d21d887e3"
 dependencies = [
  "jsonrpc-core",
  "jsonrpc-http-server",
@@ -5788,9 +5885,9 @@ dependencies = [
 
 [[package]]
 name = "sc-service"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "265682168d60e300657ea99d1595bbf50d6994a5469e9dbbe0537edeea6ed48f"
+checksum = "3d5008f81d141689b970d70824053f8460bb011bb2934fc4ab1c666054ae5b19"
 dependencies = [
  "derive_more",
  "exit-future",
@@ -5847,9 +5944,9 @@ dependencies = [
 
 [[package]]
 name = "sc-state-db"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "158ad756775c7f5ce27bef41695b9485763b999145a3781d95efcb6d6c55e02e"
+checksum = "84e3ae3859e289a9399ddf2b516f39ba69fbf0dac67980796da2092091737fb0"
 dependencies = [
  "log",
  "parity-scale-codec",
@@ -5862,9 +5959,9 @@ dependencies = [
 
 [[package]]
 name = "sc-telemetry"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9dcb4a3df69e49910d4c1f4ae4b291618571cbede42679a29f70f36c83e02bdc"
+checksum = "fd896720912a3ce4526849392ef718909d801e19ccd6ba91d0fd1e0aa018d224"
 dependencies = [
  "bytes 0.5.4",
  "futures 0.3.5",
@@ -5885,9 +5982,9 @@ dependencies = [
 
 [[package]]
 name = "sc-tracing"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a5b31cb270c27ba07f7deb90d5188b0d97bea1a711866edd2dd07881235c49b5"
+checksum = "2d8141bbd8513b4dfcc73121fe285f018a134af0f03d186659309a4c7df627f0"
 dependencies = [
  "erased-serde",
  "log",
@@ -5901,9 +5998,9 @@ dependencies = [
 
 [[package]]
 name = "sc-transaction-graph"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3209b2f4825d9dc6fd85fad566fa4c2fc0a9792ada4b23abcfa25d3c6c76f895"
+checksum = "5a0abbfac17e840c415ef08532f6f2821752caf100d50269045d2865c0679267"
 dependencies = [
  "derive_more",
  "futures 0.3.5",
@@ -5922,9 +6019,9 @@ dependencies = [
 
 [[package]]
 name = "sc-transaction-pool"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "68baf30450f1922768fec420910e7f6a4add16fd4401ef1cd76045756d22e12f"
+checksum = "710a10ec46423c7ed8ba632bce9733877fcc9c6e2472f2a27a489dbb2387856a"
 dependencies = [
  "derive_more",
  "futures 0.3.5",
@@ -5981,6 +6078,12 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ea6a9290e3c9cf0f18145ef7ffa62d68ee0bf5fcd651017e586dc7fd5da448c2"
 
+[[package]]
+name = "scoped-tls-hkt"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c2e9d7eaddb227e8fbaaa71136ae0e1e913ca159b86c7da82f3e8f0044ad3a63"
+
 [[package]]
 name = "scopeguard"
 version = "1.1.0"
@@ -6004,7 +6107,7 @@ checksum = "e367622f934864ffa1c704ba2b82280aab856e3d8213c84c5720257eb34b15b9"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -6061,6 +6164,12 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a0eddf2e8f50ced781f288c19f18621fa72a3779e3cb58dbf23b07469b0abeb4"
 
+[[package]]
+name = "send_wrapper"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f638d531eccd6e23b980caf34876660d38e265409d8e99b397ab71eb3612fad0"
+
 [[package]]
 name = "serde"
 version = "1.0.110"
@@ -6078,7 +6187,7 @@ checksum = "818fbf6bfa9a42d3bfcaca148547aa00c7b915bec71d1757aa2d44ca68771984"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -6112,9 +6221,9 @@ checksum = "2579985fda508104f7587689507983eadd6a6e84dd35d6d115361f530916fa0d"
 
 [[package]]
 name = "sha2"
-version = "0.8.1"
+version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "27044adfd2e1f077f649f59deb9490d3941d674002f7d062870a60ebe9bd47a0"
+checksum = "a256f46ea78a0c0d9ff00077504903ac881a1dafdc20da66545699e7776b3e69"
 dependencies = [
  "block-buffer",
  "digest",
@@ -6135,16 +6244,6 @@ dependencies = [
  "opaque-debug",
 ]
 
-[[package]]
-name = "shell32-sys"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9ee04b46101f57121c9da2b151988283b6beb79b34f5bb29a58ee48cb695122c"
-dependencies = [
- "winapi 0.2.8",
- "winapi-build",
-]
-
 [[package]]
 name = "shlex"
 version = "0.1.1"
@@ -6208,7 +6307,7 @@ checksum = "a945ec7f7ce853e89ffa36be1e27dce9a43e82ff9093bf3461c30d5da74ed11b"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -6226,6 +6325,25 @@ version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c7cb5678e1615754284ec264d9bb5b4c27d2018577fd90ac0ceb578591ed5ee4"
 
+[[package]]
+name = "smol"
+version = "0.1.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "686c634ad1873fffef6aed20f180eede424fbf3bb31802394c90fd7335a661b7"
+dependencies = [
+ "async-task 3.0.0",
+ "crossbeam",
+ "futures-io",
+ "futures-util",
+ "nix",
+ "once_cell",
+ "piper",
+ "scoped-tls-hkt",
+ "slab",
+ "socket2",
+ "wepoll-binding",
+]
+
 [[package]]
 name = "snow"
 version = "0.6.2"
@@ -6244,6 +6362,18 @@ dependencies = [
  "x25519-dalek",
 ]
 
+[[package]]
+name = "socket2"
+version = "0.3.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "03088793f677dce356f3ccc2edb1b314ad191ab702a5de3faf49304f7e104918"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "redox_syscall",
+ "winapi 0.3.8",
+]
+
 [[package]]
 name = "soketto"
 version = "0.3.2"
@@ -6266,9 +6396,9 @@ dependencies = [
 
 [[package]]
 name = "sp-allocator"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "14e36dd7cae657c8fc53426539ed04667086f7fb06d2accb0bd5d4553e2d28f2"
+checksum = "4f2ea936d3c137ef89d7f12207b351d2d61a03a8ebf4f2891f5c912e91d7bbdd"
 dependencies = [
  "derive_more",
  "log",
@@ -6279,9 +6409,9 @@ dependencies = [
 
 [[package]]
 name = "sp-api"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "933f9371cf80450d9e9e6c1ca462d4d20ea93c498efa7e6eb3016ee3616e6346"
+checksum = "1cdc455498c8bcf66093795a9bb691bae886fe738ccbb33703d446b7d421954a"
 dependencies = [
  "hash-db",
  "parity-scale-codec",
@@ -6295,22 +6425,22 @@ dependencies = [
 
 [[package]]
 name = "sp-api-proc-macro"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "23654e5ada7302c765a5ac47d3f5ef44dc62bd4b0e217ba98340ff38599cbdb7"
+checksum = "41840a56b81f49bfe200d52ddec6210844fe0394b324c144ac60679e53f0e2cd"
 dependencies = [
  "blake2-rfc",
  "proc-macro-crate",
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
 name = "sp-application-crypto"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fb42d9d466ce8451c5e8f14d2bcee480d8d103fc7c4e36bfe1576924612abea7"
+checksum = "8ebf9e326f8e5e5cdbfe59c6a809c331b0730b6195c7c51e9ea910ba06870d71"
 dependencies = [
  "parity-scale-codec",
  "serde",
@@ -6321,14 +6451,13 @@ dependencies = [
 
 [[package]]
 name = "sp-arithmetic"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e1fc1e6a199da5eb23d823fc2a5ae6587987b037d3ffd43112730bd7c8c9ce75"
+checksum = "8cf1c2dae15153dca8c0070a701a1cc8d8fd75db752c530a57252c3afe9a69c9"
 dependencies = [
  "integer-sqrt",
  "num-traits 0.2.11",
  "parity-scale-codec",
- "primitive-types",
  "serde",
  "sp-debug-derive",
  "sp-std",
@@ -6336,9 +6465,9 @@ dependencies = [
 
 [[package]]
 name = "sp-authorship"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2fc5741e2656107421cf57cb204caae817a4cb66de3d035393b7e9edd08f0703"
+checksum = "8549c5b19b4cf6b81b7a89048348410752b4fc463067ff876b35de0a2779d4d4"
 dependencies = [
  "parity-scale-codec",
  "sp-inherents",
@@ -6348,9 +6477,9 @@ dependencies = [
 
 [[package]]
 name = "sp-block-builder"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "84ea1d9afe6a8ec6e64545ca446870c8d144a4f6c4df8c582a8aad8aa98899be"
+checksum = "f07bd1907a79cb56647678b836afa451b6089dbd4a8f81f592fa7d62fdae332f"
 dependencies = [
  "parity-scale-codec",
  "sp-api",
@@ -6361,9 +6490,9 @@ dependencies = [
 
 [[package]]
 name = "sp-blockchain"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "381c1427e3afeff0ae2231c78762ecbf8ddd3abcc8c136368996cb8f8daf51a4"
+checksum = "b06c80d7c123743d5ff1782254801fbc69b3320dfb6d31f0d435b5f4ac69ba93"
 dependencies = [
  "derive_more",
  "log",
@@ -6378,9 +6507,9 @@ dependencies = [
 
 [[package]]
 name = "sp-chain-spec"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9af65a2d6c4c46b027132dd334a5fbe6996cc9b2c2a8371d991cabb42f72c75"
+checksum = "db27c5f2a66495213e1acc9b6d34ceb4e2579aced375237e38c71786436db078"
 dependencies = [
  "serde",
  "serde_json",
@@ -6388,9 +6517,9 @@ dependencies = [
 
 [[package]]
 name = "sp-consensus"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "19818d06577989480d1caaa7ecd57a30191d1d06afc76f21525cc4bbe1f56eb2"
+checksum = "2b81a1251e2af22b65a8594e37fa2c76c52e6369c5a7086121a066f1b18d6d0c"
 dependencies = [
  "derive_more",
  "futures 0.3.5",
@@ -6412,9 +6541,9 @@ dependencies = [
 
 [[package]]
 name = "sp-consensus-babe"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "39d8ecfe618bf718a0dfa803653c8379237443e6c2576c95484a45a10d88dad2"
+checksum = "1e31b0e64263672c408bda662a2cd3951c1583eace8f6501c3b44ccf168ee3f3"
 dependencies = [
  "merlin",
  "parity-scale-codec",
@@ -6430,9 +6559,9 @@ dependencies = [
 
 [[package]]
 name = "sp-consensus-vrf"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc0b9c10cc6e272b8f7b7a7510ba37fbeea9fab19395ec5025fd458f1490447a"
+checksum = "43696b11cb98e0b117a1b1cc5dde8f99181f3eb9fbbb64e9775c4448765df21d"
 dependencies = [
  "parity-scale-codec",
  "schnorrkel",
@@ -6443,9 +6572,9 @@ dependencies = [
 
 [[package]]
 name = "sp-core"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "849ec70fd5290d8cc06b437c6e3d4c0b1d51325ce0b58979c7d614237c92d0de"
+checksum = "93fe0027d63bb554f2200efeebf4d67424dbaf1c225dab6362181b41e270e1d9"
 dependencies = [
  "base58",
  "blake2-rfc",
@@ -6486,9 +6615,9 @@ dependencies = [
 
 [[package]]
 name = "sp-database"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b6ba5b65f8aea3031f7150ed35f458c70a072f594f9def3259702c2e02b36d9b"
+checksum = "4688f3517361da44fa18bffb6307f3bd83d76a22ea8f8544473506dc1365e1b1"
 dependencies = [
  "kvdb",
  "parking_lot 0.10.2",
@@ -6496,20 +6625,20 @@ dependencies = [
 
 [[package]]
 name = "sp-debug-derive"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aefdbd18f023868a6bc1290f276ef3016df1eafda3a2e053522de3592be2f4b0"
+checksum = "cbcd16087f1c28c33f7e5ffe000c6e09483b10d847f4acbad6ac735de4425472"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
 name = "sp-externalities"
-version = "0.8.0-alpha.8"
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@@ -6536,9 +6665,9 @@ dependencies = [
 
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@@ -6547,9 +6676,9 @@ dependencies = [
 
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@@ -6560,9 +6689,9 @@ dependencies = [
 
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@@ -6581,9 +6710,9 @@ dependencies = [
 
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@@ -6593,9 +6722,9 @@ dependencies = [
 
 [[package]]
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@@ -6604,9 +6733,9 @@ dependencies = [
 
 [[package]]
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@@ -6614,9 +6743,9 @@ dependencies = [
 
 [[package]]
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@@ -6627,21 +6756,21 @@ dependencies = [
 
 [[package]]
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+ "syn 1.0.25",
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@@ -6649,9 +6778,9 @@ dependencies = [
 
 [[package]]
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@@ -6671,9 +6800,9 @@ dependencies = [
 
 [[package]]
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@@ -6687,22 +6816,22 @@ dependencies = [
 
 [[package]]
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+ "syn 1.0.25",
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 [[package]]
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@@ -6710,9 +6839,9 @@ dependencies = [
 
 [[package]]
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@@ -6724,9 +6853,9 @@ dependencies = [
 
 [[package]]
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@@ -6735,9 +6864,9 @@ dependencies = [
 
 [[package]]
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@@ -6755,15 +6884,15 @@ dependencies = [
 
 [[package]]
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 [[package]]
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@@ -6774,9 +6903,9 @@ dependencies = [
 
 [[package]]
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@@ -6789,18 +6918,18 @@ dependencies = [
 
 [[package]]
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 dependencies = [
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 [[package]]
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@@ -6814,9 +6943,9 @@ dependencies = [
 
 [[package]]
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@@ -6829,9 +6958,9 @@ dependencies = [
 
 [[package]]
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@@ -6841,9 +6970,9 @@ dependencies = [
 
 [[package]]
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@@ -6854,9 +6983,9 @@ dependencies = [
 
 [[package]]
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+version = "2.0.0-rc1"
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 dependencies = [
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@@ -6936,7 +7065,7 @@ dependencies = [
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+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -6957,7 +7086,7 @@ dependencies = [
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- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -6974,18 +7103,18 @@ dependencies = [
 
 [[package]]
 name = "substrate-build-script-utils"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
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 dependencies = [
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 ]
 
 [[package]]
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-version = "2.0.0-alpha.8"
+version = "2.0.0-rc1"
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 dependencies = [
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@@ -7005,11 +7134,11 @@ dependencies = [
 
 [[package]]
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+checksum = "b1feede30cdf68ae7e008ea1795c639db8c222ac49175410832ff2900860bce9"
 dependencies = [
- "async-std",
+ "async-std 1.6.0",
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@@ -7026,9 +7155,9 @@ checksum = "d2a965994514ab35d3893e9260245f2947fd1981cdd4fffd2c6e6d1a9ce02e6a"
 
 [[package]]
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 dependencies = [
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@@ -7049,9 +7178,9 @@ dependencies = [
 
 [[package]]
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-version = "0.16.0-threadsafe.3"
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 dependencies = [
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@@ -7076,9 +7205,9 @@ dependencies = [
 
 [[package]]
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-version = "0.16.0-threadsafe.3"
+version = "0.16.0-threadsafe.4"
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 dependencies = [
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@@ -7095,9 +7224,9 @@ dependencies = [
 
 [[package]]
 name = "substrate-wasmtime-runtime"
-version = "0.16.0-threadsafe.3"
+version = "0.16.0-threadsafe.4"
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 dependencies = [
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@@ -7138,9 +7267,9 @@ dependencies = [
 
 [[package]]
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-version = "1.0.22"
+version = "1.0.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
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 dependencies = [
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@@ -7155,7 +7284,7 @@ checksum = "7be3539f6c128a931cf19dcee741c1af532c7fd387baa739c03dd2e96479338a"
 dependencies = [
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  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -7175,7 +7304,7 @@ checksum = "67656ea1dc1b41b1451851562ea232ec2e5a80242139f7e679ceccfb5d61f545"
 dependencies = [
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- "syn 1.0.22",
+ "syn 1.0.25",
  "unicode-xid 0.2.0",
 ]
 
@@ -7240,22 +7369,22 @@ dependencies = [
 
 [[package]]
 name = "thiserror"
-version = "1.0.18"
+version = "1.0.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5976891d6950b4f68477850b5b9e5aa64d955961466f9e174363f573e54e8ca7"
+checksum = "b13f926965ad00595dd129fa12823b04bbf866e9085ab0a5f2b05b850fbfc344"
 dependencies = [
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 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.18"
+version = "1.0.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ab81dbd1cd69cd2ce22ecfbdd3bdb73334ba25350649408cc6c085f46d89573d"
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 dependencies = [
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  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -7395,7 +7524,7 @@ version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fb2d1b8f4548dbf5e1f7818512e9c406860678f29c300cdf0ebac72d1a3a1671"
 dependencies = [
- "crossbeam-utils",
+ "crossbeam-utils 0.7.2",
  "futures 0.1.29",
 ]
 
@@ -7438,7 +7567,7 @@ version = "0.1.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "09bc590ec4ba8ba87652da2068d150dcada2cfa2e07faae270a5e0409aa51351"
 dependencies = [
- "crossbeam-utils",
+ "crossbeam-utils 0.7.2",
  "futures 0.1.29",
  "lazy_static",
  "log",
@@ -7453,9 +7582,9 @@ dependencies = [
 
 [[package]]
 name = "tokio-rustls"
-version = "0.13.0"
+version = "0.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4adb8b3e5f86b707f1b54e7c15b6de52617a823608ccda98a15d3a24222f265a"
+checksum = "15cb62a0d2770787abc96e99c1cd98fcf17f94959f3af63ca85bdfb203f051b4"
 dependencies = [
  "futures-core",
  "rustls",
@@ -7506,7 +7635,7 @@ checksum = "df720b6581784c118f0eb4310796b12b1d242a7eb95f716a8367855325c25f89"
 dependencies = [
  "crossbeam-deque",
  "crossbeam-queue",
- "crossbeam-utils",
+ "crossbeam-utils 0.7.2",
  "futures 0.1.29",
  "lazy_static",
  "log",
@@ -7521,7 +7650,7 @@ version = "0.2.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "93044f2d313c95ff1cb7809ce9a7a05735b012288a888b62d4434fd58c94f296"
 dependencies = [
- "crossbeam-utils",
+ "crossbeam-utils 0.7.2",
  "futures 0.1.29",
  "slab",
  "tokio-executor 0.1.10",
@@ -7608,7 +7737,7 @@ checksum = "99bbad0de3fd923c9c3232ead88510b783e5a4d16a6154adffa3d53308de984c"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -7801,9 +7930,9 @@ dependencies = [
 
 [[package]]
 name = "version_check"
-version = "0.9.1"
+version = "0.9.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "078775d0255232fb988e6fccf26ddc9d1ac274299aaedcedce21c6f72cc533ce"
+checksum = "b5a972e5669d67ba988ce3dc826706fb0a8b01471c088cb0b6110b805cc36aed"
 
 [[package]]
 name = "void"
@@ -7859,7 +7988,7 @@ dependencies = [
  "log",
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
  "wasm-bindgen-shared",
 ]
 
@@ -7893,7 +8022,7 @@ checksum = "8eb197bd3a47553334907ffd2f16507b4f4f01bbec3ac921a7719e0decdfe72a"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
@@ -7914,7 +8043,7 @@ dependencies = [
  "js-sys",
  "parking_lot 0.9.0",
  "pin-utils",
- "send_wrapper",
+ "send_wrapper 0.2.0",
  "wasm-bindgen",
  "wasm-bindgen-futures",
  "web-sys",
@@ -8056,6 +8185,25 @@ dependencies = [
  "webpki",
 ]
 
+[[package]]
+name = "wepoll-binding"
+version = "2.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "374fff4ff9701ff8b6ad0d14bacd3156c44063632d8c136186ff5967d48999a7"
+dependencies = [
+ "bitflags",
+ "wepoll-sys",
+]
+
+[[package]]
+name = "wepoll-sys"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9082a777aed991f6769e2b654aa0cb29f1c3d615daf009829b07b66c7aff6a24"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "which"
 version = "3.1.1"
@@ -8147,12 +8295,6 @@ dependencies = [
  "zeroize",
 ]
 
-[[package]]
-name = "xdg"
-version = "2.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d089681aa106a86fade1b0128fb5daf07d5867a509ab036d99988dec80429a57"
-
 [[package]]
 name = "yamux"
 version = "0.4.5"
@@ -8184,24 +8326,24 @@ checksum = "de251eec69fc7c1bc3923403d18ececb929380e016afe103da75f396704f8ca2"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
  "synstructure",
 ]
 
 [[package]]
 name = "zstd"
-version = "0.5.1+zstd.1.4.4"
+version = "0.5.2+zstd.1.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c5d978b793ae64375b80baf652919b148f6a496ac8802922d9999f5a553194f"
+checksum = "644352b10ce7f333d6e0af85bd4f5322dc449416dc1211c6308e95bca8923db4"
 dependencies = [
  "zstd-safe",
 ]
 
 [[package]]
 name = "zstd-safe"
-version = "2.0.3+zstd.1.4.4"
+version = "2.0.4+zstd.1.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bee25eac9753cfedd48133fa1736cbd23b774e253d89badbeac7d12b23848d3f"
+checksum = "7113c0c9aed2c55181f2d9f5b0a36e7d2c0183b11c058ab40b35987479efe4d7"
 dependencies = [
  "libc",
  "zstd-sys",
@@ -8209,11 +8351,12 @@ dependencies = [
 
 [[package]]
 name = "zstd-sys"
-version = "1.4.15+zstd.1.4.4"
+version = "1.4.16+zstd.1.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "89719b034dc22d240d5b407fb0a3fe6d29952c181cff9a9f95c0bd40b4f8f7d8"
+checksum = "c442965efc45353be5a9b9969c9b0872fff6828c7e06d118dda2cb2d0bb11d5a"
 dependencies = [
  "cc",
  "glob",
+ "itertools 0.9.0",
  "libc",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index d9a1097daa..b65ffa9b67 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -23,39 +23,40 @@ serde = { version = "1.0.101", features = ["derive"] }
 serde_json = "1.0.41"
 structopt = "0.3.8"
 
-pallet-transaction-payment-rpc = { version = "2.0.0-alpha.8" }
-sc-basic-authorship = { version = "0.8.0-alpha.8" }
-sc-chain-spec = { version = "2.0.0-alpha.8" }
-sc-cli = { version = "0.8.0-alpha.8" }
-sc-client-api = { version = "2.0.0-alpha.8" }
-sc-client-db = { version = "0.8.0-alpha.8" }
-sc-consensus = { version = "0.8.0-alpha.8" }
-sc-consensus-babe = { version = "0.8.0-alpha.8" }
-sc-consensus-babe-rpc = { version = "0.8.0-alpha.8" }
-sc-consensus-epochs = { version = "0.8.0-alpha.8" }
-sc-executor = { version = "0.8.0-alpha.8" }
-sc-finality-grandpa = { version = "0.8.0-alpha.8" }
-sc-finality-grandpa-rpc = { version = "0.8.0-alpha.8" }
-sc-keystore = { version = "2.0.0-alpha.8" }
-sc-network = { version = "0.8.0-alpha.8" }
-sc-offchain = { version = "2.0.0-alpha.8" }
-sc-rpc = { version = "2.0.0-alpha.8" }
-sc-service = { version = "0.8.0-alpha.8" }
-sc-telemetry = { version = "2.0.0-alpha.8" }
-sc-transaction-pool = { version = "2.0.0-alpha.8" }
-sp-api = { version = "2.0.0-alpha.8" }
-sp-consensus = { version = "0.8.0-alpha.8" }
-sp-consensus-babe = { version = "0.8.0-alpha.8" }
-sp-core = { version = "2.0.0-alpha.8" }
-sp-finality-grandpa = { version = "2.0.0-alpha.8" }
-sp-inherents = { version = "2.0.0-alpha.8" }
-sp-io = { version = "2.0.0-alpha.8" }
-sp-runtime = { version = "2.0.0-alpha.8" }
-sp-transaction-pool = { version = "2.0.0-alpha.8" }
-substrate-frame-rpc-system = { version = "2.0.0-alpha.8" }
-frame-benchmarking-cli = { version = "2.0.0-alpha.8" }
-sp-blockchain = { version = "2.0.0-alpha.8" }
-frame-benchmarking = { version = "2.0.0-alpha.8" }
+pallet-transaction-payment-rpc = { version = "2.0.0-rc1" }
+sc-basic-authorship = { version = "0.8.0-rc1" }
+sc-chain-spec = { version = "2.0.0-rc1" }
+sc-cli = { version = "0.8.0-rc1" }
+sc-client-api = { version = "2.0.0-rc1" }
+sc-client-db = { version = "0.8.0-rc1" }
+sc-consensus = { version = "0.8.0-rc1" }
+sc-consensus-babe = { version = "0.8.0-rc1" }
+sc-consensus-babe-rpc = { version = "0.8.0-rc1" }
+sc-consensus-epochs = { version = "0.8.0-rc1" }
+sc-executor = { version = "0.8.0-rc1" }
+sc-finality-grandpa = { version = "0.8.0-rc1" }
+sc-finality-grandpa-rpc = { version = "0.8.0-rc1" }
+sc-keystore = { version = "2.0.0-rc1" }
+sc-network = { version = "0.8.0-rc1" }
+sc-offchain = { version = "2.0.0-rc1" }
+sc-rpc = { version = "2.0.0-rc1" }
+sc-rpc-api = { version = "0.8.0-rc1" }
+sc-service = { version = "0.8.0-rc1" }
+sc-telemetry = { version = "2.0.0-rc1" }
+sc-transaction-pool = { version = "2.0.0-rc1" }
+sp-api = { version = "2.0.0-rc1" }
+sp-consensus = { version = "0.8.0-rc1" }
+sp-consensus-babe = { version = "0.8.0-rc1" }
+sp-core = { version = "2.0.0-rc1" }
+sp-finality-grandpa = { version = "2.0.0-rc1" }
+sp-inherents = { version = "2.0.0-rc1" }
+sp-io = { version = "2.0.0-rc1" }
+sp-runtime = { version = "2.0.0-rc1" }
+sp-transaction-pool = { version = "2.0.0-rc1" }
+substrate-frame-rpc-system = { version = "2.0.0-rc1" }
+frame-benchmarking-cli = { version = "2.0.0-rc1" }
+sp-blockchain = { version = "2.0.0-rc1" }
+frame-benchmarking = { version = "2.0.0-rc1" }
 
 module-dex-rpc = { path = "modules/dex/rpc" }
 module-support = { path = "modules/support" }
@@ -67,8 +68,8 @@ inspect = { package = "acala-inspect", path = "inspect" }
 
 [build-dependencies]
 vergen = "3.0.4"
-build-script-utils = { package = "substrate-build-script-utils", version = "2.0.0-alpha.8" }
-frame-benchmarking-cli = { version = "2.0.0-alpha.8" }
+build-script-utils = { package = "substrate-build-script-utils", version = "2.0.0-rc1" }
+frame-benchmarking-cli = { version = "2.0.0-rc1" }
 
 [features]
 default = ["wasmtime"]
diff --git a/inspect/Cargo.toml b/inspect/Cargo.toml
index c7bf1b97dc..be3597d22b 100644
--- a/inspect/Cargo.toml
+++ b/inspect/Cargo.toml
@@ -8,10 +8,10 @@ edition = "2018"
 codec = { package = "parity-scale-codec", version = "1.3.0" }
 derive_more = "0.99"
 log = "0.4.8"
-sc-cli = { version = "0.8.0-alpha.8" }
-sc-client-api = { version = "2.0.0-alpha.8" }
-sc-service = { version = "0.8.0-alpha.8", default-features = false }
-sp-blockchain = { version = "2.0.0-alpha.8" }
-sp-core = { version = "2.0.0-alpha.8" }
-sp-runtime = { version = "2.0.0-alpha.8" }
+sc-cli = { version = "0.8.0-rc1" }
+sc-client-api = { version = "2.0.0-rc1" }
+sc-service = { version = "0.8.0-rc1", default-features = false }
+sp-blockchain = { version = "2.0.0-rc1" }
+sp-core = { version = "2.0.0-rc1" }
+sp-runtime = { version = "2.0.0-rc1" }
 structopt = "0.3.8"
diff --git a/modules/accounts/Cargo.toml b/modules/accounts/Cargo.toml
index 17a3ef8338..52e5fdf7e8 100644
--- a/modules/accounts/Cargo.toml
+++ b/modules/accounts/Cargo.toml
@@ -7,20 +7,20 @@ edition = "2018"
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-sp-runtime = { version = "2.0.0-alpha.8", default-features = false }
-frame-support = { version = "2.0.0-alpha.8", default-features = false }
-frame-system = { version = "2.0.0-alpha.8", default-features = false }
-sp-std = { version = "2.0.0-alpha.8", default-features = false }
-pallet-transaction-payment = { version = "2.0.0-alpha.8", default-features = false }
-pallet-balances = { version = "2.0.0-alpha.8", default-features = false }
-pallet-timestamp = { version = "2.0.0-alpha.8", default-features = false }
+sp-runtime = { version = "2.0.0-rc1", default-features = false }
+frame-support = { version = "2.0.0-rc1", default-features = false }
+frame-system = { version = "2.0.0-rc1", default-features = false }
+sp-std = { version = "2.0.0-rc1", default-features = false }
+pallet-transaction-payment = { version = "2.0.0-rc1", default-features = false }
+pallet-balances = { version = "2.0.0-rc1", default-features = false }
+pallet-timestamp = { version = "2.0.0-rc1", default-features = false }
 orml-tokens = { path = "../../orml/tokens", default-features = false }
 orml-currencies = { path = "../../orml/currencies", default-features = false }
 primitives = { package = "module-primitives", path = "../primitives", default-features = false }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-alpha.8", default-features = false }
-sp-io = { version = "2.0.0-alpha.8", default-features = false }
+sp-core = { version = "2.0.0-rc1", default-features = false }
+sp-io = { version = "2.0.0-rc1", default-features = false }
 orml-traits = { path = "../../orml/traits", default-features = false }
 
 [features]
diff --git a/modules/accounts/src/mock.rs b/modules/accounts/src/mock.rs
index c190e2dfbb..31d6017b58 100644
--- a/modules/accounts/src/mock.rs
+++ b/modules/accounts/src/mock.rs
@@ -3,13 +3,9 @@
 #![cfg(test)]
 
 use super::*;
-use frame_support::{impl_outer_dispatch, impl_outer_origin, parameter_types};
+use frame_support::{impl_outer_dispatch, impl_outer_origin, parameter_types, weights::IdentityFee};
 use sp_core::H256;
-use sp_runtime::{
-	testing::Header,
-	traits::{ConvertInto, IdentityLookup},
-	Perbill,
-};
+use sp_runtime::{testing::Header, traits::IdentityLookup, Perbill};
 
 pub type AccountId = u64;
 pub type BlockNumber = u64;
@@ -67,6 +63,7 @@ impl system::Trait for Runtime {
 	type DbWeight = ();
 	type BlockExecutionWeight = ();
 	type ExtrinsicBaseWeight = ();
+	type MaximumExtrinsicWeight = ();
 }
 
 impl orml_tokens::Trait for Runtime {
@@ -124,7 +121,7 @@ impl pallet_transaction_payment::Trait for Runtime {
 	type Currency = PalletBalances;
 	type OnTransactionPayment = ();
 	type TransactionByteFee = TransactionByteFee;
-	type WeightToFee = ConvertInto;
+	type WeightToFee = IdentityFee<u64>;
 	type FeeMultiplierUpdate = ();
 }
 
diff --git a/modules/airdrop/Cargo.toml b/modules/airdrop/Cargo.toml
index e2f59749c8..5d5ad94422 100644
--- a/modules/airdrop/Cargo.toml
+++ b/modules/airdrop/Cargo.toml
@@ -7,14 +7,14 @@ edition = "2018"
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-sp-runtime = { version = "2.0.0-alpha.8", default-features = false }
-frame-support = { version = "2.0.0-alpha.8", default-features = false }
-frame-system = { version = "2.0.0-alpha.8", default-features = false }
+sp-runtime = { version = "2.0.0-rc1", default-features = false }
+frame-support = { version = "2.0.0-rc1", default-features = false }
+frame-system = { version = "2.0.0-rc1", default-features = false }
 primitives = { package = "module-primitives", path = "../primitives", default-features = false }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-alpha.8", default-features = false }
-sp-io = { version = "2.0.0-alpha.8", default-features = false }
+sp-core = { version = "2.0.0-rc1", default-features = false }
+sp-io = { version = "2.0.0-rc1", default-features = false }
 
 [features]
 default = ["std"]
diff --git a/modules/airdrop/src/mock.rs b/modules/airdrop/src/mock.rs
index 077dc34495..9d839ab21f 100644
--- a/modules/airdrop/src/mock.rs
+++ b/modules/airdrop/src/mock.rs
@@ -64,6 +64,7 @@ impl system::Trait for Runtime {
 	type DbWeight = ();
 	type BlockExecutionWeight = ();
 	type ExtrinsicBaseWeight = ();
+	type MaximumExtrinsicWeight = ();
 }
 pub type System = system::Module<Runtime>;
 
diff --git a/modules/auction_manager/Cargo.toml b/modules/auction_manager/Cargo.toml
index 338efb1b50..2f46b312ea 100644
--- a/modules/auction_manager/Cargo.toml
+++ b/modules/auction_manager/Cargo.toml
@@ -7,11 +7,11 @@ edition = "2018"
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-sp-runtime = { version = "2.0.0-alpha.8", default-features = false }
-frame-support = { version = "2.0.0-alpha.8", default-features = false }
-frame-system = { version = "2.0.0-alpha.8", default-features = false }
-sp-std = { version = "2.0.0-alpha.8", default-features = false }
-sp-io = { version = "2.0.0-alpha.8", default-features = false }
+sp-runtime = { version = "2.0.0-rc1", default-features = false }
+frame-support = { version = "2.0.0-rc1", default-features = false }
+frame-system = { version = "2.0.0-rc1", default-features = false }
+sp-std = { version = "2.0.0-rc1", default-features = false }
+sp-io = { version = "2.0.0-rc1", default-features = false }
 orml-traits = { path = "../../orml/traits", default-features = false }
 orml-tokens = { path = "../../orml/tokens", default-features = false }
 support = { package = "module-support", path = "../support", default-features = false }
@@ -19,8 +19,8 @@ utilities = { path = "../../utilities", default-features = false }
 primitives = { package = "module-primitives", path = "../primitives", default-features = false }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-alpha.8", default-features = false }
-pallet-balances = { version = "2.0.0-alpha.8", default-features = false }
+sp-core = { version = "2.0.0-rc1", default-features = false }
+pallet-balances = { version = "2.0.0-rc1", default-features = false }
 orml-auction = { path = "../../orml/auction", default-features = false }
 cdp-treasury = { package = "module-cdp-treasury", path = "../cdp_treasury", default-features = false }
 
diff --git a/modules/auction_manager/benchmarking/Cargo.toml b/modules/auction_manager/benchmarking/Cargo.toml
index c0fb68c5c5..594b32a100 100644
--- a/modules/auction_manager/benchmarking/Cargo.toml
+++ b/modules/auction_manager/benchmarking/Cargo.toml
@@ -5,11 +5,11 @@ authors = ["Acala Developers"]
 edition = "2018"
 
 [dependencies]
-sp-runtime = { version = "2.0.0-alpha.8", default-features = false }
-sp-std = { version = "2.0.0-alpha.8", default-features = false }
-frame-support = { version = "2.0.0-alpha.8", default-features = false }
-frame-system = { version = "2.0.0-alpha.8", default-features = false }
-frame-benchmarking = { version = "2.0.0-alpha.8", default-features = false }
+sp-runtime = { version = "2.0.0-rc1", default-features = false }
+sp-std = { version = "2.0.0-rc1", default-features = false }
+frame-support = { version = "2.0.0-rc1", default-features = false }
+frame-system = { version = "2.0.0-rc1", default-features = false }
+frame-benchmarking = { version = "2.0.0-rc1", default-features = false }
 orml-auction = { path = "../../../orml/auction", default-features = false }
 orml-oracle = { path = "../../../orml/oracle", default-features = false }
 orml-traits = { path = "../../../orml/traits", default-features = false }
@@ -22,12 +22,12 @@ auction-manager = { package = "module-auction-manager", path = "../../auction_ma
 [dev-dependencies]
 serde = { version = "1.0.101" }
 codec = { package = "parity-scale-codec", version = "1.3.0", features = ["derive"] }
-sp-core = { version = "2.0.0-alpha.8", default-features = false }
-sp-io = { version = "2.0.0-alpha.8", default-features = false }
-pallet-balances = { version = "2.0.0-alpha.8", default-features = false }
+sp-core = { version = "2.0.0-rc1", default-features = false }
+sp-io = { version = "2.0.0-rc1", default-features = false }
+pallet-balances = { version = "2.0.0-rc1", default-features = false }
 orml-currencies = { path = "../../../orml/currencies", default-features = false }
 orml-tokens = { path = "../../../orml/tokens", default-features = false }
-pallet-timestamp = { version = "2.0.0-alpha.8" }
+pallet-timestamp = { version = "2.0.0-rc1" }
 
 [features]
 default = ["std"]
diff --git a/modules/auction_manager/benchmarking/src/mock.rs b/modules/auction_manager/benchmarking/src/mock.rs
index 7ffdff1b9a..1ef4b849f4 100644
--- a/modules/auction_manager/benchmarking/src/mock.rs
+++ b/modules/auction_manager/benchmarking/src/mock.rs
@@ -61,6 +61,7 @@ impl frame_system::Trait for Runtime {
 	type DbWeight = ();
 	type BlockExecutionWeight = ();
 	type ExtrinsicBaseWeight = ();
+	type MaximumExtrinsicWeight = ();
 }
 
 impl orml_tokens::Trait for Runtime {
diff --git a/modules/auction_manager/src/mock.rs b/modules/auction_manager/src/mock.rs
index 7b82ddc73b..4a941f1695 100644
--- a/modules/auction_manager/src/mock.rs
+++ b/modules/auction_manager/src/mock.rs
@@ -82,6 +82,7 @@ impl system::Trait for Runtime {
 	type DbWeight = ();
 	type BlockExecutionWeight = ();
 	type ExtrinsicBaseWeight = ();
+	type MaximumExtrinsicWeight = ();
 }
 pub type System = system::Module<Runtime>;
 
diff --git a/modules/cdp_engine/Cargo.toml b/modules/cdp_engine/Cargo.toml
index c276dcd680..1617c6564a 100644
--- a/modules/cdp_engine/Cargo.toml
+++ b/modules/cdp_engine/Cargo.toml
@@ -7,12 +7,12 @@ edition = "2018"
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-frame-support = { version = "2.0.0-alpha.8", default-features = false }
-sp-std = { version = "2.0.0-alpha.8", default-features = false }
-sp-io = { version = "2.0.0-alpha.8", default-features = false }
-sp-application-crypto = { version = "2.0.0-alpha.8", default-features = false }
-sp-runtime = { version = "2.0.0-alpha.8", default-features = false }
-frame-system = { version = "2.0.0-alpha.8", default-features = false }
+frame-support = { version = "2.0.0-rc1", default-features = false }
+sp-std = { version = "2.0.0-rc1", default-features = false }
+sp-io = { version = "2.0.0-rc1", default-features = false }
+sp-application-crypto = { version = "2.0.0-rc1", default-features = false }
+sp-runtime = { version = "2.0.0-rc1", default-features = false }
+frame-system = { version = "2.0.0-rc1", default-features = false }
 orml-tokens = { path = "../../orml/tokens", default-features = false }
 support = { package = "module-support", path = "../support", default-features = false }
 loans = { package = "module-loans", path = "../loans", default-features = false }
@@ -20,8 +20,8 @@ primitives = { package = "module-primitives", path = "../primitives", default-fe
 utilities = { path = "../../utilities", default-features = false }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-alpha.8", default-features = false }
-pallet-balances = { version = "2.0.0-alpha.8", default-features = false }
+sp-core = { version = "2.0.0-rc1", default-features = false }
+pallet-balances = { version = "2.0.0-rc1", default-features = false }
 orml-currencies = { path = "../../orml/currencies", default-features = false }
 orml-traits = { path = "../../orml/traits", default-features = false }
 dex = { package = "module-dex", path = "../dex", default-features = false }
diff --git a/modules/cdp_engine/benchmarking/Cargo.toml b/modules/cdp_engine/benchmarking/Cargo.toml
index b6316e2ce7..0b65e43647 100644
--- a/modules/cdp_engine/benchmarking/Cargo.toml
+++ b/modules/cdp_engine/benchmarking/Cargo.toml
@@ -5,11 +5,11 @@ authors = ["Acala Developers"]
 edition = "2018"
 
 [dependencies]
-sp-runtime = { version = "2.0.0-alpha.8", default-features = false }
-sp-std = { version = "2.0.0-alpha.8", default-features = false }
-frame-support = { version = "2.0.0-alpha.8", default-features = false }
-frame-system = { version = "2.0.0-alpha.8", default-features = false }
-frame-benchmarking = { version = "2.0.0-alpha.8", default-features = false }
+sp-runtime = { version = "2.0.0-rc1", default-features = false }
+sp-std = { version = "2.0.0-rc1", default-features = false }
+frame-support = { version = "2.0.0-rc1", default-features = false }
+frame-system = { version = "2.0.0-rc1", default-features = false }
+frame-benchmarking = { version = "2.0.0-rc1", default-features = false }
 orml-oracle = { path = "../../../orml/oracle", default-features = false }
 orml-traits = { path = "../../../orml/traits", default-features = false }
 prices = { package = "module-prices", path = "../../prices", default-features = false }
@@ -22,13 +22,13 @@ dex = { package = "module-dex", path = "../../dex", default-features = false }
 [dev-dependencies]
 serde = { version = "1.0.101" }
 codec = { package = "parity-scale-codec", version = "1.3.0", features = ["derive"] }
-sp-core = { version = "2.0.0-alpha.8", default-features = false }
-sp-io = { version = "2.0.0-alpha.8", default-features = false }
-pallet-balances = { version = "2.0.0-alpha.8", default-features = false }
+sp-core = { version = "2.0.0-rc1", default-features = false }
+sp-io = { version = "2.0.0-rc1", default-features = false }
+pallet-balances = { version = "2.0.0-rc1", default-features = false }
 orml-currencies = { path = "../../../orml/currencies", default-features = false }
 orml-tokens = { path = "../../../orml/tokens", default-features = false }
 cdp-treasury = { package = "module-cdp-treasury", path = "../../cdp_treasury", default-features = false }
-pallet-timestamp = { version = "2.0.0-alpha.8" }
+pallet-timestamp = { version = "2.0.0-rc1" }
 
 [features]
 default = ["std"]
diff --git a/modules/cdp_engine/benchmarking/src/mock.rs b/modules/cdp_engine/benchmarking/src/mock.rs
index a38d49ae86..3d7c8a0154 100644
--- a/modules/cdp_engine/benchmarking/src/mock.rs
+++ b/modules/cdp_engine/benchmarking/src/mock.rs
@@ -66,6 +66,7 @@ impl frame_system::Trait for Runtime {
 	type DbWeight = ();
 	type BlockExecutionWeight = ();
 	type ExtrinsicBaseWeight = ();
+	type MaximumExtrinsicWeight = ();
 }
 
 impl orml_tokens::Trait for Runtime {
diff --git a/modules/cdp_engine/src/mock.rs b/modules/cdp_engine/src/mock.rs
index 733513f3e4..faebac9135 100644
--- a/modules/cdp_engine/src/mock.rs
+++ b/modules/cdp_engine/src/mock.rs
@@ -88,6 +88,7 @@ impl system::Trait for Runtime {
 	type DbWeight = ();
 	type BlockExecutionWeight = ();
 	type ExtrinsicBaseWeight = ();
+	type MaximumExtrinsicWeight = ();
 }
 pub type System = system::Module<Runtime>;
 
diff --git a/modules/cdp_treasury/Cargo.toml b/modules/cdp_treasury/Cargo.toml
index 1b511fcec8..d70af76436 100644
--- a/modules/cdp_treasury/Cargo.toml
+++ b/modules/cdp_treasury/Cargo.toml
@@ -7,20 +7,20 @@ edition = "2018"
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-sp-runtime = { version = "2.0.0-alpha.8", default-features = false }
-frame-support = { version = "2.0.0-alpha.8", default-features = false }
-frame-system = { version = "2.0.0-alpha.8", default-features = false }
-sp-std = { version = "2.0.0-alpha.8", default-features = false }
+sp-runtime = { version = "2.0.0-rc1", default-features = false }
+frame-support = { version = "2.0.0-rc1", default-features = false }
+frame-system = { version = "2.0.0-rc1", default-features = false }
+sp-std = { version = "2.0.0-rc1", default-features = false }
 orml-traits = { path = "../../orml/traits", default-features = false }
 orml-tokens = { path = "../../orml/tokens", default-features = false }
 support = { package = "module-support", path = "../support", default-features = false }
 primitives = { package = "module-primitives", path = "../primitives", default-features = false }
-frame-benchmarking = { version = "2.0.0-alpha.8", default-features = false, optional = true }
+frame-benchmarking = { version = "2.0.0-rc1", default-features = false, optional = true }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-alpha.8", default-features = false }
-sp-io = { version = "2.0.0-alpha.8", default-features = false }
-pallet-balances = { version = "2.0.0-alpha.8", default-features = false }
+sp-core = { version = "2.0.0-rc1", default-features = false }
+sp-io = { version = "2.0.0-rc1", default-features = false }
+pallet-balances = { version = "2.0.0-rc1", default-features = false }
 orml-currencies = { path = "../../orml/currencies", default-features = false }
 orml-auction = { path = "../../orml/auction", default-features = false }
 dex = { package = "module-dex", path = "../dex", default-features = false }
diff --git a/modules/cdp_treasury/src/mock.rs b/modules/cdp_treasury/src/mock.rs
index d4d2c85098..e485318b25 100644
--- a/modules/cdp_treasury/src/mock.rs
+++ b/modules/cdp_treasury/src/mock.rs
@@ -74,6 +74,7 @@ impl system::Trait for Runtime {
 	type DbWeight = ();
 	type BlockExecutionWeight = ();
 	type ExtrinsicBaseWeight = ();
+	type MaximumExtrinsicWeight = ();
 }
 pub type System = system::Module<Runtime>;
 
diff --git a/modules/dex/Cargo.toml b/modules/dex/Cargo.toml
index e40f34726d..9dac7a565d 100644
--- a/modules/dex/Cargo.toml
+++ b/modules/dex/Cargo.toml
@@ -7,11 +7,11 @@ edition = "2018"
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-sp-runtime = { version = "2.0.0-alpha.8", default-features = false }
-frame-benchmarking = { version = "2.0.0-alpha.8", default-features = false, optional = true }
-frame-support = { version = "2.0.0-alpha.8", default-features = false }
-frame-system = { version = "2.0.0-alpha.8", default-features = false }
-sp-std = { version = "2.0.0-alpha.8", default-features = false }
+sp-runtime = { version = "2.0.0-rc1", default-features = false }
+frame-benchmarking = { version = "2.0.0-rc1", default-features = false, optional = true }
+frame-support = { version = "2.0.0-rc1", default-features = false }
+frame-system = { version = "2.0.0-rc1", default-features = false }
+sp-std = { version = "2.0.0-rc1", default-features = false }
 orml-traits = { path = "../../orml/traits", default-features = false }
 orml-utilities = { path = "../../orml/utilities", default-features = false }
 orml-tokens = { path = "../../orml/tokens", default-features = false }
@@ -19,9 +19,9 @@ support = { package = "module-support", path = "../support", default-features =
 primitives = { package = "module-primitives", path = "../primitives", default-features = false }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-alpha.8", default-features = false }
-sp-io = { version = "2.0.0-alpha.8", default-features = false }
-pallet-balances = { version = "2.0.0-alpha.8", default-features = false }
+sp-core = { version = "2.0.0-rc1", default-features = false }
+sp-io = { version = "2.0.0-rc1", default-features = false }
+pallet-balances = { version = "2.0.0-rc1", default-features = false }
 orml-currencies = { path = "../../orml/currencies", default-features = false }
 cdp-treasury = { package = "module-cdp-treasury", path = "../cdp_treasury", default-features = false }
 
diff --git a/modules/dex/rpc/Cargo.toml b/modules/dex/rpc/Cargo.toml
index 9168c1b348..3d0d671e43 100644
--- a/modules/dex/rpc/Cargo.toml
+++ b/modules/dex/rpc/Cargo.toml
@@ -10,7 +10,7 @@ codec = { package = "parity-scale-codec", version = "1.3.0" }
 jsonrpc-core = "14.0.5"
 jsonrpc-core-client = "14.0.5"
 jsonrpc-derive = "14.0.5"
-sp-runtime = { version = "2.0.0-alpha.8" }
-sp-api = { version = "2.0.0-alpha.8" }
-sp-blockchain = { version = "2.0.0-alpha.8" }
+sp-runtime = { version = "2.0.0-rc1" }
+sp-api = { version = "2.0.0-rc1" }
+sp-blockchain = { version = "2.0.0-rc1" }
 module-dex-rpc-runtime-api = { path = "runtime-api" }
diff --git a/modules/dex/rpc/runtime-api/Cargo.toml b/modules/dex/rpc/runtime-api/Cargo.toml
index c3cece709c..a5e7ba1424 100644
--- a/modules/dex/rpc/runtime-api/Cargo.toml
+++ b/modules/dex/rpc/runtime-api/Cargo.toml
@@ -7,9 +7,9 @@ edition = "2018"
 [dependencies]
 serde = { version = "1.0.101", optional = true, features = ["derive"] }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-api = { version = "2.0.0-alpha.8", default-features = false }
-sp-runtime = { version = "2.0.0-alpha.8", default-features = false }
-sp-std = { version = "2.0.0-alpha.8", default-features = false }
+sp-api = { version = "2.0.0-rc1", default-features = false }
+sp-runtime = { version = "2.0.0-rc1", default-features = false }
+sp-std = { version = "2.0.0-rc1", default-features = false }
 
 [features]
 default = ["std"]
diff --git a/modules/dex/src/mock.rs b/modules/dex/src/mock.rs
index 1160ede9ab..32d0e5add8 100644
--- a/modules/dex/src/mock.rs
+++ b/modules/dex/src/mock.rs
@@ -73,6 +73,7 @@ impl system::Trait for Runtime {
 	type DbWeight = ();
 	type BlockExecutionWeight = ();
 	type ExtrinsicBaseWeight = ();
+	type MaximumExtrinsicWeight = ();
 }
 pub type System = system::Module<Runtime>;
 
diff --git a/modules/emergency_shutdown/Cargo.toml b/modules/emergency_shutdown/Cargo.toml
index 38e865164e..1f937ba8eb 100644
--- a/modules/emergency_shutdown/Cargo.toml
+++ b/modules/emergency_shutdown/Cargo.toml
@@ -7,19 +7,19 @@ edition = "2018"
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-sp-runtime = { version = "2.0.0-alpha.8", default-features = false }
-frame-support = { version = "2.0.0-alpha.8", default-features = false }
-frame-system = { version = "2.0.0-alpha.8", default-features = false }
-sp-std = { version = "2.0.0-alpha.8", default-features = false }
+sp-runtime = { version = "2.0.0-rc1", default-features = false }
+frame-support = { version = "2.0.0-rc1", default-features = false }
+frame-system = { version = "2.0.0-rc1", default-features = false }
+sp-std = { version = "2.0.0-rc1", default-features = false }
 orml-tokens = { path = "../../orml/tokens", default-features = false }
 support = { package = "module-support", path = "../support", default-features = false }
 loans = { package = "module-loans", path = "../loans", default-features = false }
 primitives = { package = "module-primitives", path = "../primitives", default-features = false }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-alpha.8", default-features = false }
-sp-io = { version = "2.0.0-alpha.8", default-features = false }
-pallet-balances= { version = "2.0.0-alpha.8", default-features = false }
+sp-core = { version = "2.0.0-rc1", default-features = false }
+sp-io = { version = "2.0.0-rc1", default-features = false }
+pallet-balances= { version = "2.0.0-rc1", default-features = false }
 orml-currencies = { path = "../../orml/currencies", default-features = false }
 cdp-treasury = { package = "module-cdp-treasury", path = "../cdp_treasury", default-features = false }
 
diff --git a/modules/emergency_shutdown/benchmarking/Cargo.toml b/modules/emergency_shutdown/benchmarking/Cargo.toml
index a8c2f93547..184c997ccf 100644
--- a/modules/emergency_shutdown/benchmarking/Cargo.toml
+++ b/modules/emergency_shutdown/benchmarking/Cargo.toml
@@ -5,11 +5,11 @@ authors = ["Acala Developers"]
 edition = "2018"
 
 [dependencies]
-sp-runtime = { version = "2.0.0-alpha.8", default-features = false }
-sp-std = { version = "2.0.0-alpha.8", default-features = false }
-frame-support = { version = "2.0.0-alpha.8", default-features = false }
-frame-system = { version = "2.0.0-alpha.8", default-features = false }
-frame-benchmarking = { version = "2.0.0-alpha.8", default-features = false }
+sp-runtime = { version = "2.0.0-rc1", default-features = false }
+sp-std = { version = "2.0.0-rc1", default-features = false }
+frame-support = { version = "2.0.0-rc1", default-features = false }
+frame-system = { version = "2.0.0-rc1", default-features = false }
+frame-benchmarking = { version = "2.0.0-rc1", default-features = false }
 orml-oracle = { path = "../../../orml/oracle", default-features = false }
 orml-traits = { path = "../../../orml/traits", default-features = false }
 prices = { package = "module-prices", path = "../../prices", default-features = false }
@@ -22,13 +22,13 @@ emergency-shutdown = { package = "module-emergency-shutdown", path = "../../emer
 [dev-dependencies]
 serde = { version = "1.0.101" }
 codec = { package = "parity-scale-codec", version = "1.3.0", features = ["derive"] }
-sp-core = { version = "2.0.0-alpha.8", default-features = false }
-sp-io = { version = "2.0.0-alpha.8", default-features = false }
-pallet-balances = { version = "2.0.0-alpha.8", default-features = false }
+sp-core = { version = "2.0.0-rc1", default-features = false }
+sp-io = { version = "2.0.0-rc1", default-features = false }
+pallet-balances = { version = "2.0.0-rc1", default-features = false }
 orml-currencies = { path = "../../../orml/currencies", default-features = false }
 orml-tokens = { path = "../../../orml/tokens", default-features = false }
 cdp-treasury = { package = "module-cdp-treasury", path = "../../cdp_treasury", default-features = false }
-pallet-timestamp = { version = "2.0.0-alpha.8" }
+pallet-timestamp = { version = "2.0.0-rc1" }
 
 [features]
 default = ["std"]
diff --git a/modules/emergency_shutdown/benchmarking/src/mock.rs b/modules/emergency_shutdown/benchmarking/src/mock.rs
index ce717d9288..edcb60df7d 100644
--- a/modules/emergency_shutdown/benchmarking/src/mock.rs
+++ b/modules/emergency_shutdown/benchmarking/src/mock.rs
@@ -65,6 +65,7 @@ impl frame_system::Trait for Runtime {
 	type DbWeight = ();
 	type BlockExecutionWeight = ();
 	type ExtrinsicBaseWeight = ();
+	type MaximumExtrinsicWeight = ();
 }
 
 impl orml_tokens::Trait for Runtime {
diff --git a/modules/emergency_shutdown/src/mock.rs b/modules/emergency_shutdown/src/mock.rs
index 760ed176db..385781ded7 100644
--- a/modules/emergency_shutdown/src/mock.rs
+++ b/modules/emergency_shutdown/src/mock.rs
@@ -80,6 +80,7 @@ impl system::Trait for Runtime {
 	type DbWeight = ();
 	type BlockExecutionWeight = ();
 	type ExtrinsicBaseWeight = ();
+	type MaximumExtrinsicWeight = ();
 }
 pub type System = system::Module<Runtime>;
 
diff --git a/modules/homa/Cargo.toml b/modules/homa/Cargo.toml
index cef47205b6..6f0d606c07 100644
--- a/modules/homa/Cargo.toml
+++ b/modules/homa/Cargo.toml
@@ -7,9 +7,9 @@ edition = "2018"
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-sp-runtime = { version = "2.0.0-alpha.8", default-features = false }
-frame-support = { version = "2.0.0-alpha.8", default-features = false }
-frame-system = { version = "2.0.0-alpha.8", default-features = false }
+sp-runtime = { version = "2.0.0-rc1", default-features = false }
+frame-support = { version = "2.0.0-rc1", default-features = false }
+frame-system = { version = "2.0.0-rc1", default-features = false }
 staking-pool = { package = "module-staking-pool", path = "../staking_pool", default-features = false }
 support = { package = "module-support", path = "../support", default-features = false }
 primitives = { package = "module-primitives", path = "../primitives", default-features = false }
diff --git a/modules/homa_treasury/Cargo.toml b/modules/homa_treasury/Cargo.toml
index b64c16d7b3..3c98ba9646 100644
--- a/modules/homa_treasury/Cargo.toml
+++ b/modules/homa_treasury/Cargo.toml
@@ -7,17 +7,17 @@ edition = "2018"
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-sp-runtime = { version = "2.0.0-alpha.8", default-features = false }
-frame-support = { version = "2.0.0-alpha.8", default-features = false }
-frame-system = { version = "2.0.0-alpha.8", default-features = false }
-sp-std = { version = "2.0.0-alpha.8", default-features = false }
+sp-runtime = { version = "2.0.0-rc1", default-features = false }
+frame-support = { version = "2.0.0-rc1", default-features = false }
+frame-system = { version = "2.0.0-rc1", default-features = false }
+sp-std = { version = "2.0.0-rc1", default-features = false }
 orml-traits = { package = "orml-traits", path = "../../orml/traits", default-features = false }
 support = { package = "module-support", path = "../support", default-features = false }
 primitives = { package = "module-primitives", path = "../primitives", default-features = false }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-alpha.8", default-features = false }
-sp-io = { version = "2.0.0-alpha.8", default-features = false }
+sp-core = { version = "2.0.0-rc1", default-features = false }
+sp-io = { version = "2.0.0-rc1", default-features = false }
 
 [features]
 default = ["std"]
diff --git a/modules/honzon/Cargo.toml b/modules/honzon/Cargo.toml
index b37dbf805f..66f617224d 100644
--- a/modules/honzon/Cargo.toml
+++ b/modules/honzon/Cargo.toml
@@ -7,10 +7,10 @@ edition = "2018"
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-sp-runtime = { version = "2.0.0-alpha.8", default-features = false }
-frame-support = { version = "2.0.0-alpha.8", default-features = false }
-frame-system = { version = "2.0.0-alpha.8", default-features = false }
-sp-std = { version = "2.0.0-alpha.8", default-features = false }
+sp-runtime = { version = "2.0.0-rc1", default-features = false }
+frame-support = { version = "2.0.0-rc1", default-features = false }
+frame-system = { version = "2.0.0-rc1", default-features = false }
+sp-std = { version = "2.0.0-rc1", default-features = false }
 orml-tokens = { path = "../../orml/tokens", default-features = false }
 cdp-engine = { package = "module-cdp-engine", path = "../cdp_engine", default-features = false }
 loans = { package = "module-loans", path = "../loans", default-features = false }
@@ -18,9 +18,9 @@ support = { package = "module-support", path = "../support", default-features =
 primitives = { package = "module-primitives", path = "../primitives", default-features = false }
 
 [dev-dependencies]
-sp-io = { version = "2.0.0-alpha.8", default-features = false }
-sp-core = { version = "2.0.0-alpha.8", default-features = false }
-pallet-balances = { version = "2.0.0-alpha.8", default-features = false }
+sp-io = { version = "2.0.0-rc1", default-features = false }
+sp-core = { version = "2.0.0-rc1", default-features = false }
+pallet-balances = { version = "2.0.0-rc1", default-features = false }
 orml-currencies = { path = "../../orml/currencies", default-features = false }
 cdp-treasury = { package = "module-cdp-treasury", path = "../cdp_treasury", default-features = false }
 
diff --git a/modules/honzon/benchmarking/Cargo.toml b/modules/honzon/benchmarking/Cargo.toml
index 6516657ecb..a84b3bb3f7 100644
--- a/modules/honzon/benchmarking/Cargo.toml
+++ b/modules/honzon/benchmarking/Cargo.toml
@@ -5,11 +5,11 @@ authors = ["Acala Developers"]
 edition = "2018"
 
 [dependencies]
-sp-runtime = { version = "2.0.0-alpha.8", default-features = false }
-sp-std = { version = "2.0.0-alpha.8", default-features = false }
-frame-support = { version = "2.0.0-alpha.8", default-features = false }
-frame-system = { version = "2.0.0-alpha.8", default-features = false }
-frame-benchmarking = { version = "2.0.0-alpha.8", default-features = false }
+sp-runtime = { version = "2.0.0-rc1", default-features = false }
+sp-std = { version = "2.0.0-rc1", default-features = false }
+frame-support = { version = "2.0.0-rc1", default-features = false }
+frame-system = { version = "2.0.0-rc1", default-features = false }
+frame-benchmarking = { version = "2.0.0-rc1", default-features = false }
 orml-oracle = { path = "../../../orml/oracle", default-features = false }
 orml-traits = { path = "../../../orml/traits", default-features = false }
 honzon = { package = "module-honzon", path = "../../honzon", default-features = false }
@@ -22,13 +22,13 @@ loans = { package = "module-loans", path = "../../loans", default-features = fal
 [dev-dependencies]
 serde = { version = "1.0.101" }
 codec = { package = "parity-scale-codec", version = "1.3.0", features = ["derive"] }
-sp-core = { version = "2.0.0-alpha.8", default-features = false }
-sp-io = { version = "2.0.0-alpha.8", default-features = false }
-pallet-balances = { version = "2.0.0-alpha.8", default-features = false }
+sp-core = { version = "2.0.0-rc1", default-features = false }
+sp-io = { version = "2.0.0-rc1", default-features = false }
+pallet-balances = { version = "2.0.0-rc1", default-features = false }
 orml-currencies = { path = "../../../orml/currencies", default-features = false }
 orml-tokens = { path = "../../../orml/tokens", default-features = false }
 cdp-treasury = { package = "module-cdp-treasury", path = "../../cdp_treasury", default-features = false }
-pallet-timestamp = { version = "2.0.0-alpha.8" }
+pallet-timestamp = { version = "2.0.0-rc1" }
 
 [features]
 default = ["std"]
diff --git a/modules/honzon/benchmarking/src/mock.rs b/modules/honzon/benchmarking/src/mock.rs
index f3c9e5fe39..1c35ef6abc 100644
--- a/modules/honzon/benchmarking/src/mock.rs
+++ b/modules/honzon/benchmarking/src/mock.rs
@@ -65,6 +65,7 @@ impl frame_system::Trait for Runtime {
 	type DbWeight = ();
 	type BlockExecutionWeight = ();
 	type ExtrinsicBaseWeight = ();
+	type MaximumExtrinsicWeight = ();
 }
 
 impl orml_tokens::Trait for Runtime {
diff --git a/modules/honzon/src/mock.rs b/modules/honzon/src/mock.rs
index 138a13670c..e2d1ecf549 100644
--- a/modules/honzon/src/mock.rs
+++ b/modules/honzon/src/mock.rs
@@ -88,6 +88,7 @@ impl system::Trait for Runtime {
 	type DbWeight = ();
 	type BlockExecutionWeight = ();
 	type ExtrinsicBaseWeight = ();
+	type MaximumExtrinsicWeight = ();
 }
 pub type System = system::Module<Runtime>;
 
diff --git a/modules/loans/Cargo.toml b/modules/loans/Cargo.toml
index c77e43b721..0983b160ae 100644
--- a/modules/loans/Cargo.toml
+++ b/modules/loans/Cargo.toml
@@ -7,19 +7,19 @@ edition = "2018"
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-frame-system = { version = "2.0.0-alpha.8", default-features = false }
-frame-support = { version = "2.0.0-alpha.8", default-features = false }
-sp-std = { version = "2.0.0-alpha.8", default-features = false }
-sp-runtime = { version = "2.0.0-alpha.8", default-features = false }
+frame-system = { version = "2.0.0-rc1", default-features = false }
+frame-support = { version = "2.0.0-rc1", default-features = false }
+sp-std = { version = "2.0.0-rc1", default-features = false }
+sp-runtime = { version = "2.0.0-rc1", default-features = false }
 orml-traits = { path = "../../orml/traits", default-features = false }
 orml-tokens = { path = "../../orml/tokens", default-features = false }
 primitives = { package = "module-primitives", path = "../primitives", default-features = false }
 support = { package = "module-support", path = "../support", default-features = false }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-alpha.8", default-features = false }
-sp-io = { version = "2.0.0-alpha.8", default-features = false }
-pallet-balances = { version = "2.0.0-alpha.8", default-features = false }
+sp-core = { version = "2.0.0-rc1", default-features = false }
+sp-io = { version = "2.0.0-rc1", default-features = false }
+pallet-balances = { version = "2.0.0-rc1", default-features = false }
 orml-currencies = { path = "../../orml/currencies", default-features = false }
 cdp-treasury = { package = "module-cdp-treasury", path = "../cdp_treasury", default-features = false }
 
diff --git a/modules/loans/src/mock.rs b/modules/loans/src/mock.rs
index 98d0157061..dfe1e23e06 100644
--- a/modules/loans/src/mock.rs
+++ b/modules/loans/src/mock.rs
@@ -74,6 +74,7 @@ impl system::Trait for Runtime {
 	type DbWeight = ();
 	type BlockExecutionWeight = ();
 	type ExtrinsicBaseWeight = ();
+	type MaximumExtrinsicWeight = ();
 }
 pub type System = system::Module<Runtime>;
 
diff --git a/modules/nominees_election/Cargo.toml b/modules/nominees_election/Cargo.toml
index 2a7f73e3d3..46adc71fa7 100644
--- a/modules/nominees_election/Cargo.toml
+++ b/modules/nominees_election/Cargo.toml
@@ -7,19 +7,19 @@ edition = "2018"
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-sp-runtime = { version = "2.0.0-alpha.8", default-features = false }
-frame-support = { version = "2.0.0-alpha.8", default-features = false }
-frame-system = { version = "2.0.0-alpha.8", default-features = false }
-sp-std = { version = "2.0.0-alpha.8", default-features = false }
+sp-runtime = { version = "2.0.0-rc1", default-features = false }
+frame-support = { version = "2.0.0-rc1", default-features = false }
+frame-system = { version = "2.0.0-rc1", default-features = false }
+sp-std = { version = "2.0.0-rc1", default-features = false }
 orml-traits = { path = "../../orml/traits", default-features = false }
 orml-tokens = { path = "../../orml/tokens", default-features = false }
 support = { package = "module-support", path = "../support", default-features = false }
 primitives = { package = "module-primitives", path = "../primitives", default-features = false }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-alpha.8", default-features = false }
-sp-io = { version = "2.0.0-alpha.8", default-features = false }
-pallet-balances = { version = "2.0.0-alpha.8", default-features = false }
+sp-core = { version = "2.0.0-rc1", default-features = false }
+sp-io = { version = "2.0.0-rc1", default-features = false }
+pallet-balances = { version = "2.0.0-rc1", default-features = false }
 orml-currencies = { path = "../../orml/currencies", default-features = false }
 
 [features]
diff --git a/modules/nominees_election/src/mock.rs b/modules/nominees_election/src/mock.rs
index 97cf5a1319..28b6a6483d 100644
--- a/modules/nominees_election/src/mock.rs
+++ b/modules/nominees_election/src/mock.rs
@@ -53,6 +53,7 @@ impl system::Trait for Runtime {
 	type DbWeight = ();
 	type BlockExecutionWeight = ();
 	type ExtrinsicBaseWeight = ();
+	type MaximumExtrinsicWeight = ();
 }
 pub type System = system::Module<Runtime>;
 
diff --git a/modules/polkadot_bridge/Cargo.toml b/modules/polkadot_bridge/Cargo.toml
index 5f216e6d61..109884fd08 100644
--- a/modules/polkadot_bridge/Cargo.toml
+++ b/modules/polkadot_bridge/Cargo.toml
@@ -7,17 +7,17 @@ edition = "2018"
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-sp-runtime = { version = "2.0.0-alpha.8", default-features = false }
-frame-support = { version = "2.0.0-alpha.8", default-features = false }
-frame-system = { version = "2.0.0-alpha.8", default-features = false }
-sp-std = { version = "2.0.0-alpha.8", default-features = false }
+sp-runtime = { version = "2.0.0-rc1", default-features = false }
+frame-support = { version = "2.0.0-rc1", default-features = false }
+frame-system = { version = "2.0.0-rc1", default-features = false }
+sp-std = { version = "2.0.0-rc1", default-features = false }
 orml-traits = { path = "../../orml/traits", default-features = false }
 support = { package = "module-support", path = "../support", default-features = false }
 primitives = { package = "module-primitives", path = "../primitives", default-features = false }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-alpha.8", default-features = false }
-sp-io = { version = "2.0.0-alpha.8", default-features = false }
+sp-core = { version = "2.0.0-rc1", default-features = false }
+sp-io = { version = "2.0.0-rc1", default-features = false }
 
 [features]
 default = ["std"]
diff --git a/modules/prices/Cargo.toml b/modules/prices/Cargo.toml
index 8488c344e5..71ea79477b 100644
--- a/modules/prices/Cargo.toml
+++ b/modules/prices/Cargo.toml
@@ -7,17 +7,17 @@ edition = "2018"
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-sp-runtime = { version = "2.0.0-alpha.8", default-features = false }
-frame-support = { version = "2.0.0-alpha.8", default-features = false }
-frame-system = { version = "2.0.0-alpha.8", default-features = false }
-sp-std = { version = "2.0.0-alpha.8", default-features = false }
+sp-runtime = { version = "2.0.0-rc1", default-features = false }
+frame-support = { version = "2.0.0-rc1", default-features = false }
+frame-system = { version = "2.0.0-rc1", default-features = false }
+sp-std = { version = "2.0.0-rc1", default-features = false }
 orml-traits = { package = "orml-traits", path = "../../orml/traits", default-features = false }
 support = { package = "module-support", path = "../support", default-features = false }
 primitives = { package = "module-primitives", path = "../primitives", default-features = false }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-alpha.8", default-features = false }
-sp-io = { version = "2.0.0-alpha.8", default-features = false }
+sp-core = { version = "2.0.0-rc1", default-features = false }
+sp-io = { version = "2.0.0-rc1", default-features = false }
 
 [features]
 default = ["std"]
diff --git a/modules/prices/src/mock.rs b/modules/prices/src/mock.rs
index 96398d9d68..fa33f69a22 100644
--- a/modules/prices/src/mock.rs
+++ b/modules/prices/src/mock.rs
@@ -66,6 +66,7 @@ impl system::Trait for Runtime {
 	type DbWeight = ();
 	type BlockExecutionWeight = ();
 	type ExtrinsicBaseWeight = ();
+	type MaximumExtrinsicWeight = ();
 }
 pub type System = system::Module<Runtime>;
 
diff --git a/modules/primitives/Cargo.toml b/modules/primitives/Cargo.toml
index fbd97f1c76..1a546b2f58 100644
--- a/modules/primitives/Cargo.toml
+++ b/modules/primitives/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2018"
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-sp-runtime = { version = "2.0.0-alpha.8", default-features = false }
+sp-runtime = { version = "2.0.0-rc1", default-features = false }
 
 [features]
 default = ["std"]
diff --git a/modules/staking_pool/Cargo.toml b/modules/staking_pool/Cargo.toml
index 59bcf4768c..11a59ddd72 100644
--- a/modules/staking_pool/Cargo.toml
+++ b/modules/staking_pool/Cargo.toml
@@ -6,19 +6,19 @@ edition = "2018"
 
 [dependencies]
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-sp-runtime = { version = "2.0.0-alpha.8", default-features = false }
-frame-support = { version = "2.0.0-alpha.8", default-features = false }
-frame-system = { version = "2.0.0-alpha.8", default-features = false }
-sp-std = { version = "2.0.0-alpha.8", default-features = false }
+sp-runtime = { version = "2.0.0-rc1", default-features = false }
+frame-support = { version = "2.0.0-rc1", default-features = false }
+frame-system = { version = "2.0.0-rc1", default-features = false }
+sp-std = { version = "2.0.0-rc1", default-features = false }
 orml-traits = { package = "orml-traits", path = "../../orml/traits", default-features = false }
 orml-tokens = { path = "../../orml/tokens", default-features = false }
 support = { package = "module-support", path = "../support", default-features = false }
 primitives = { package = "module-primitives", path = "../primitives", default-features = false }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-alpha.8", default-features = false }
-sp-io = { version = "2.0.0-alpha.8", default-features = false }
-pallet-balances = { version = "2.0.0-alpha.8", default-features = false }
+sp-core = { version = "2.0.0-rc1", default-features = false }
+sp-io = { version = "2.0.0-rc1", default-features = false }
+pallet-balances = { version = "2.0.0-rc1", default-features = false }
 orml-currencies = { path = "../../orml/currencies", default-features = false }
 
 [features]
diff --git a/modules/staking_pool/rpc/Cargo.toml b/modules/staking_pool/rpc/Cargo.toml
index dcb97bbb4a..22ebe4b166 100644
--- a/modules/staking_pool/rpc/Cargo.toml
+++ b/modules/staking_pool/rpc/Cargo.toml
@@ -10,8 +10,8 @@ codec = { package = "parity-scale-codec", version = "1.3.0" }
 jsonrpc-core = "14.0.5"
 jsonrpc-core-client = "14.0.5"
 jsonrpc-derive = "14.0.5"
-sp-runtime = { version = "2.0.0-alpha.8" }
-sp-api = { version = "2.0.0-alpha.8" }
-sp-blockchain = { version = "2.0.0-alpha.8" }
+sp-runtime = { version = "2.0.0-rc1" }
+sp-api = { version = "2.0.0-rc1" }
+sp-blockchain = { version = "2.0.0-rc1" }
 module-staking-pool-rpc-runtime-api = { path = "runtime-api" }
 module-support = { path = "../../support" }
diff --git a/modules/staking_pool/rpc/runtime-api/Cargo.toml b/modules/staking_pool/rpc/runtime-api/Cargo.toml
index 9355fa3866..6ffb371f22 100644
--- a/modules/staking_pool/rpc/runtime-api/Cargo.toml
+++ b/modules/staking_pool/rpc/runtime-api/Cargo.toml
@@ -7,9 +7,9 @@ edition = "2018"
 [dependencies]
 serde = { version = "1.0.101", optional = true, features = ["derive"] }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
-sp-api = { version = "2.0.0-alpha.8", default-features = false }
-sp-runtime = { version = "2.0.0-alpha.8", default-features = false }
-sp-std = { version = "2.0.0-alpha.8", default-features = false }
+sp-api = { version = "2.0.0-rc1", default-features = false }
+sp-runtime = { version = "2.0.0-rc1", default-features = false }
+sp-std = { version = "2.0.0-rc1", default-features = false }
 support = { package = "module-support", path = "../../../support", default-features = false }
 
 [features]
diff --git a/modules/staking_pool/src/mock.rs b/modules/staking_pool/src/mock.rs
index b6f7c569c7..b153158551 100644
--- a/modules/staking_pool/src/mock.rs
+++ b/modules/staking_pool/src/mock.rs
@@ -70,6 +70,7 @@ impl system::Trait for Runtime {
 	type DbWeight = ();
 	type BlockExecutionWeight = ();
 	type ExtrinsicBaseWeight = ();
+	type MaximumExtrinsicWeight = ();
 }
 pub type System = system::Module<Runtime>;
 
diff --git a/modules/support/Cargo.toml b/modules/support/Cargo.toml
index 2502c1aed1..8925a7552d 100644
--- a/modules/support/Cargo.toml
+++ b/modules/support/Cargo.toml
@@ -7,9 +7,9 @@ edition = "2018"
 [dependencies]
 impl-trait-for-tuples = "0.1.3"
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-sp-runtime = { version = "2.0.0-alpha.8", default-features = false }
-frame-support = { version = "2.0.0-alpha.8", default-features = false }
-sp-std = { version = "2.0.0-alpha.8", default-features = false }
+sp-runtime = { version = "2.0.0-rc1", default-features = false }
+frame-support = { version = "2.0.0-rc1", default-features = false }
+sp-std = { version = "2.0.0-rc1", default-features = false }
 orml-utilities = { path = "../../orml/utilities", default-features = false }
 
 [features]
diff --git a/modules/template/Cargo.toml b/modules/template/Cargo.toml
index 04589fddf2..424aa395f8 100644
--- a/modules/template/Cargo.toml
+++ b/modules/template/Cargo.toml
@@ -7,11 +7,11 @@ edition = "2018"
 [dependencies]
 serde = { version = "1.0.101", optional = true }
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-sp-runtime = { version = "2.0.0-alpha.8", default-features = false }
-support = { package = "frame-support", version = "2.0.0-alpha.8", default-features = false }
-system = { package = "frame-system", version = "2.0.0-alpha.8", default-features = false }
-runtime-io = { package = "sp-io", version = "2.0.0-alpha.8", default-features = false }
-rstd = { package = "sp-std", version = "2.0.0-alpha.8", default-features = false }
+sp-runtime = { version = "2.0.0-rc1", default-features = false }
+support = { package = "frame-support", version = "2.0.0-rc1", default-features = false }
+system = { package = "frame-system", version = "2.0.0-rc1", default-features = false }
+runtime-io = { package = "sp-io", version = "2.0.0-rc1", default-features = false }
+rstd = { package = "sp-std", version = "2.0.0-rc1", default-features = false }
 
 [features]
 default = ["std"]
diff --git a/orml b/orml
index f785964dbb..21d9890fe5 160000
--- a/orml
+++ b/orml
@@ -1 +1 @@
-Subproject commit f785964dbb67cd0b5520f6dad04f65f0c1556f69
+Subproject commit 21d9890fe5484abdf5f80762fcf73e5ad1e6cb22
diff --git a/runtime/Cargo.toml b/runtime/Cargo.toml
index 32464d4b33..b4349b881d 100644
--- a/runtime/Cargo.toml
+++ b/runtime/Cargo.toml
@@ -8,42 +8,42 @@ edition = "2018"
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = ["derive"] }
 serde = { version = "1.0.101", optional = true }
 
-frame-executive = { version = "2.0.0-alpha.8", default-features = false }
-frame-support = { version = "2.0.0-alpha.8", default-features = false }
-frame-system-rpc-runtime-api = { version = "2.0.0-alpha.8", default-features = false }
-frame-benchmarking = { version = "2.0.0-alpha.8", default-features = false, optional = true }
-pallet-babe = { version = "2.0.0-alpha.8", default-features = false }
-pallet-balances = { version = "2.0.0-alpha.8", default-features = false }
-pallet-collective = { version = "2.0.0-alpha.8", default-features = false }
-pallet-grandpa = { version = "2.0.0-alpha.8", default-features = false }
-pallet-indices = { version = "2.0.0-alpha.8", default-features = false }
-pallet-membership = { version = "2.0.0-alpha.8", default-features = false }
-pallet-randomness-collective-flip = { version = "2.0.0-alpha.8", default-features = false }
-pallet-recovery = { version = "2.0.0-alpha.8", default-features = false }
-pallet-session = { version = "2.0.0-alpha.8", features = ["historical"], default-features = false }
-pallet-staking = { version = "2.0.0-alpha.8", default-features = false }
-pallet-staking-reward-curve = { version = "2.0.0-alpha.8", default-features = false }
-pallet-sudo = { version = "2.0.0-alpha.8", default-features = false }
-pallet-timestamp = { version = "2.0.0-alpha.8", default-features = false }
-pallet-transaction-payment = { version = "2.0.0-alpha.8", default-features = false }
-pallet-transaction-payment-rpc-runtime-api = { version = "2.0.0-alpha.8", default-features = false }
-pallet-treasury = { version = "2.0.0-alpha.8", default-features = false }
-pallet-utility = { version = "2.0.0-alpha.8", default-features = false }
-sp-api = { version = "2.0.0-alpha.8", default-features = false }
-sp-block-builder = { version = "2.0.0-alpha.8", default-features = false }
-sp-consensus-babe = { version = "0.8.0-alpha.8", default-features = false }
-sp-core = { version = "2.0.0-alpha.8", default-features = false }
-sp-inherents = { version = "2.0.0-alpha.8", default-features = false }
-sp-io = { version = "2.0.0-alpha.8", default-features = false }
-sp-offchain = { version = "2.0.0-alpha.8", default-features = false }
-sp-runtime = { version = "2.0.0-alpha.8", default-features = false }
-sp-session = { version = "2.0.0-alpha.8", default-features = false }
-sp-staking = { version = "2.0.0-alpha.8", default-features = false }
-sp-std = { version = "2.0.0-alpha.8", default-features = false }
-sp-transaction-pool = { version = "2.0.0-alpha.8", default-features = false }
-sp-version = { version = "2.0.0-alpha.8", default-features = false }
-frame-system = { version = "2.0.0-alpha.8", default-features = false }
-sp-application-crypto = { version = "2.0.0-alpha.8", default-features = false }
+frame-executive = { version = "2.0.0-rc1", default-features = false }
+frame-support = { version = "2.0.0-rc1", default-features = false }
+frame-system-rpc-runtime-api = { version = "2.0.0-rc1", default-features = false }
+frame-benchmarking = { version = "2.0.0-rc1", default-features = false, optional = true }
+pallet-babe = { version = "2.0.0-rc1", default-features = false }
+pallet-balances = { version = "2.0.0-rc1", default-features = false }
+pallet-collective = { version = "2.0.0-rc1", default-features = false }
+pallet-grandpa = { version = "2.0.0-rc1", default-features = false }
+pallet-indices = { version = "2.0.0-rc1", default-features = false }
+pallet-membership = { version = "2.0.0-rc1", default-features = false }
+pallet-randomness-collective-flip = { version = "2.0.0-rc1", default-features = false }
+pallet-recovery = { version = "2.0.0-rc1", default-features = false }
+pallet-session = { version = "2.0.0-rc1", features = ["historical"], default-features = false }
+pallet-staking = { version = "2.0.0-rc1", default-features = false }
+pallet-staking-reward-curve = { version = "2.0.0-rc1", default-features = false }
+pallet-sudo = { version = "2.0.0-rc1", default-features = false }
+pallet-timestamp = { version = "2.0.0-rc1", default-features = false }
+pallet-transaction-payment = { version = "2.0.0-rc1", default-features = false }
+pallet-transaction-payment-rpc-runtime-api = { version = "2.0.0-rc1", default-features = false }
+pallet-treasury = { version = "2.0.0-rc1", default-features = false }
+pallet-utility = { version = "2.0.0-rc1", default-features = false }
+sp-api = { version = "2.0.0-rc1", default-features = false }
+sp-block-builder = { version = "2.0.0-rc1", default-features = false }
+sp-consensus-babe = { version = "0.8.0-rc1", default-features = false }
+sp-core = { version = "2.0.0-rc1", default-features = false }
+sp-inherents = { version = "2.0.0-rc1", default-features = false }
+sp-io = { version = "2.0.0-rc1", default-features = false }
+sp-offchain = { version = "2.0.0-rc1", default-features = false }
+sp-runtime = { version = "2.0.0-rc1", default-features = false }
+sp-session = { version = "2.0.0-rc1", default-features = false }
+sp-staking = { version = "2.0.0-rc1", default-features = false }
+sp-std = { version = "2.0.0-rc1", default-features = false }
+sp-transaction-pool = { version = "2.0.0-rc1", default-features = false }
+sp-version = { version = "2.0.0-rc1", default-features = false }
+frame-system = { version = "2.0.0-rc1", default-features = false }
+sp-application-crypto = { version = "2.0.0-rc1", default-features = false }
 
 orml-auction = { path = "../orml/auction", default-features = false }
 orml-currencies = { path = "../orml/currencies", default-features = false }
@@ -83,7 +83,7 @@ module-auction-manager-benchmarking = { path = "../modules/auction_manager/bench
 wasm-builder-runner = { package = "substrate-wasm-builder-runner", version = "1.0.6" }
 
 [dev-dependencies]
-sp-io = { version = "2.0.0-alpha.8" }
+sp-io = { version = "2.0.0-rc1" }
 
 [features]
 default = ["std"]
diff --git a/runtime/src/lib.rs b/runtime/src/lib.rs
index 3506d74201..9a39eba076 100644
--- a/runtime/src/lib.rs
+++ b/runtime/src/lib.rs
@@ -16,7 +16,7 @@ use sp_core::{
 	OpaqueMetadata,
 };
 use sp_runtime::traits::{
-	BlakeTwo256, Block as BlockT, Convert, ConvertInto, NumberFor, OpaqueKeys, SaturatedConversion, StaticLookup,
+	BlakeTwo256, Block as BlockT, Convert, NumberFor, OpaqueKeys, SaturatedConversion, Saturating, StaticLookup,
 };
 use sp_runtime::{
 	create_runtime_str,
@@ -41,7 +41,7 @@ pub use frame_support::{
 	traits::{Contains, ContainsLengthBound, KeyOwnerProofSystem, Randomness},
 	weights::{
 		constants::{BlockExecutionWeight, ExtrinsicBaseWeight, RocksDbWeight, WEIGHT_PER_SECOND},
-		Weight,
+		IdentityFee, Weight,
 	},
 	StorageValue,
 };
@@ -107,6 +107,9 @@ parameter_types! {
 	/// We allow for 2 seconds of compute with a 4 second average block time.
 	pub const MaximumBlockWeight: Weight = 2 * WEIGHT_PER_SECOND;
 	pub const AvailableBlockRatio: Perbill = Perbill::from_percent(75);
+	/// Assume 10% of weight for average on_initialize calls.
+	pub const MaximumExtrinsicWeight: Weight = AvailableBlockRatio::get()
+		.saturating_sub(Perbill::from_percent(10)) * MaximumBlockWeight::get();
 	pub const MaximumBlockLength: u32 = 5 * 1024 * 1024;
 	pub const Version: RuntimeVersion = VERSION;
 }
@@ -134,6 +137,7 @@ impl system::Trait for Runtime {
 	type DbWeight = RocksDbWeight;
 	type BlockExecutionWeight = BlockExecutionWeight;
 	type ExtrinsicBaseWeight = ExtrinsicBaseWeight;
+	type MaximumExtrinsicWeight = MaximumExtrinsicWeight;
 }
 
 parameter_types! {
@@ -208,7 +212,7 @@ impl pallet_transaction_payment::Trait for Runtime {
 	type Currency = Balances;
 	type OnTransactionPayment = ();
 	type TransactionByteFee = TransactionByteFee;
-	type WeightToFee = ConvertInto;
+	type WeightToFee = IdentityFee<Balance>;
 	type FeeMultiplierUpdate = ();
 }
 
@@ -517,8 +521,8 @@ impl orml_auction::Trait for Runtime {
 
 parameter_types! {
 	pub const MinimumCount: u32 = 1;
-	pub const ExpiresIn: Moment = 1000 * 60 * 30; // 30 mins
-	pub const OracleUnsignedPriority: TransactionPriority = TransactionPriority::max_value() - 1;
+	pub const ExpiresIn: Moment = 1000 * 60 * 60; // 60 mins
+	pub const OracleUnsignedPriority: TransactionPriority = TransactionPriority::max_value() - 10000;
 }
 
 impl orml_oracle::Trait for Runtime {
diff --git a/src/chain_spec.rs b/src/chain_spec.rs
index b3e3523826..c6e9bef580 100644
--- a/src/chain_spec.rs
+++ b/src/chain_spec.rs
@@ -207,12 +207,12 @@ pub fn latest_mandala_testnet_config() -> ChainSpec {
 				vec![
 					// 5F98oWfz2r5rcRVnP9VCndg33DAAsky3iuoBSpaPUbgN9AJn
 					hex!["8815a8024b06a5b4c8703418f52125c923f939a5c40a717f6ae3011ba7719019"].into(),
-					// 5GeTpaLR637ztQqFvwCZocZhLp1QqHURKH6Gj7CZteRCAhMs
-					hex!["cab00722883a824e7fc368ff2ad53ffcce3fa3b794080311218bee8e902929df"].into(),
+					// 5Fe3jZRbKes6aeuQ6HkcTvQeNhkkRPTXBwmNkuAPoimGEv45
+					hex!["9e22b64c980329ada2b46a783623bcf1f1d0418f6a2b5fbfb7fb68dbac5abf0f"].into(),
 				],
 				vec![(
-					// 5F98oWfz2r5rcRVnP9VCndg33DAAsky3iuoBSpaPUbgN9AJn
-					hex!["8815a8024b06a5b4c8703418f52125c923f939a5c40a717f6ae3011ba7719019"].into(),
+					// 5Fe3jZRbKes6aeuQ6HkcTvQeNhkkRPTXBwmNkuAPoimGEv45
+					hex!["9e22b64c980329ada2b46a783623bcf1f1d0418f6a2b5fbfb7fb68dbac5abf0f"].into(),
 					hex!["9e22b64c980329ada2b46a783623bcf1f1d0418f6a2b5fbfb7fb68dbac5abf0f"].unchecked_into(),
 				)],
 			)
diff --git a/src/command.rs b/src/command.rs
index fc95449109..52c797034b 100644
--- a/src/command.rs
+++ b/src/command.rs
@@ -6,6 +6,7 @@ use crate::{
 };
 use runtime::{Block, RuntimeApi};
 use sc_cli::{Result, SubstrateCli};
+use sc_finality_grandpa as grandpa;
 
 impl SubstrateCli for Cli {
 	fn impl_name() -> &'static str {
diff --git a/src/rpc.rs b/src/rpc.rs
index 7e1e3329b3..c5bd8e5c6f 100644
--- a/src/rpc.rs
+++ b/src/rpc.rs
@@ -6,11 +6,12 @@ use runtime::{
 	opaque::Block, AccountId, Balance, BlockNumber, CurrencyId, Hash, Index, TimeStampedPrice, UncheckedExtrinsic,
 };
 use sc_consensus_babe::{Config, Epoch};
-use sc_consensus_babe_rpc::BabeRPCHandler;
+use sc_consensus_babe_rpc::BabeRpcHandler;
 use sc_consensus_epochs::SharedEpochChanges;
 use sc_finality_grandpa::{SharedAuthoritySet, SharedVoterState};
 use sc_finality_grandpa_rpc::GrandpaRpcHandler;
 use sc_keystore::KeyStorePtr;
+use sc_rpc_api::DenyUnsafe;
 use sp_api::ProvideRuntimeApi;
 use sp_blockchain::{Error as BlockChainError, HeaderBackend, HeaderMetadata};
 use sp_consensus::SelectChain;
@@ -56,6 +57,8 @@ pub struct FullDeps<C, P, SC> {
 	pub pool: Arc<P>,
 	/// The SelectChain Strategy
 	pub select_chain: SC,
+	/// Whether to deny unsafe calls
+	pub deny_unsafe: DenyUnsafe,
 	/// BABE specific dependencies.
 	pub babe: BabeDeps,
 	/// GRANDPA specific dependencies.
@@ -90,6 +93,7 @@ where
 		client,
 		pool,
 		select_chain,
+		deny_unsafe,
 		babe,
 		grandpa,
 	} = deps;
@@ -110,12 +114,13 @@ where
 	io.extend_with(TransactionPaymentApi::to_delegate(TransactionPayment::new(
 		client.clone(),
 	)));
-	io.extend_with(sc_consensus_babe_rpc::BabeApi::to_delegate(BabeRPCHandler::new(
+	io.extend_with(sc_consensus_babe_rpc::BabeApi::to_delegate(BabeRpcHandler::new(
 		client.clone(),
 		shared_epoch_changes,
 		keystore,
 		babe_config,
 		select_chain,
+		deny_unsafe,
 	)));
 	io.extend_with(OracleApi::to_delegate(Oracle::new(client.clone())));
 	io.extend_with(DexApi::to_delegate(Dex::new(client.clone())));
diff --git a/src/service.rs b/src/service.rs
index 70c1193fbc..2ce5e412d6 100644
--- a/src/service.rs
+++ b/src/service.rs
@@ -7,7 +7,9 @@ use std::sync::Arc;
 use runtime::{opaque::Block, RuntimeApi};
 use sc_consensus::LongestChain;
 use sc_consensus_babe;
-use sc_finality_grandpa::{self, FinalityProofProvider as GrandpaFinalityProofProvider, StorageAndProofProvider};
+use sc_finality_grandpa::{
+	self as grandpa, FinalityProofProvider as GrandpaFinalityProofProvider, StorageAndProofProvider,
+};
 use sc_service::{config::Configuration, error::Error as ServiceError, AbstractService, ServiceBuilder};
 use sp_inherents::InherentDataProviders;
 
@@ -19,7 +21,6 @@ macro_rules! new_full_start {
 	($config:expr) => {{
 		use std::sync::Arc;
 
-		type RpcExtension = jsonrpc_core::IoHandler<sc_rpc::Metadata>;
 		let mut import_setup = None;
 		let mut rpc_setup = None;
 		let inherent_data_providers = sp_inherents::InherentDataProviders::new();
@@ -44,7 +45,7 @@ macro_rules! new_full_start {
 					.take()
 					.ok_or_else(|| sc_service::Error::SelectChainRequired)?;
 				let (grandpa_block_import, grandpa_link) =
-					sc_finality_grandpa::block_import(client.clone(), &(client.clone() as Arc<_>), select_chain)?;
+					grandpa::block_import(client.clone(), &(client.clone() as Arc<_>), select_chain)?;
 				let justification_import = grandpa_block_import.clone();
 
 				let (block_import, babe_link) = sc_consensus_babe::block_import(
@@ -68,36 +69,52 @@ macro_rules! new_full_start {
 				Ok(import_queue)
 			},
 			)?
-		.with_rpc_extensions(|builder| -> std::result::Result<RpcExtension, _> {
-			let babe_link = import_setup
-				.as_ref()
-				.map(|s| &s.2)
-				.expect("BabeLink is present for full services or set up failed; qed.");
+		.with_rpc_extensions_builder(|builder| {
 			let grandpa_link = import_setup
 				.as_ref()
 				.map(|s| &s.1)
 				.expect("GRANDPA LinkHalf is present for full services or set up failed; qed.");
-			let shared_authority_set = grandpa_link.shared_authority_set();
-			let shared_voter_state = sc_finality_grandpa::SharedVoterState::empty();
-			let deps = crate::rpc::FullDeps {
-				client: builder.client().clone(),
-				pool: builder.pool(),
-				select_chain: builder
-					.select_chain()
-					.cloned()
-					.expect("SelectChain is present for full services or set up failed; qed."),
-				babe: crate::rpc::BabeDeps {
-					keystore: builder.keystore(),
-					babe_config: sc_consensus_babe::BabeLink::config(babe_link).clone(),
-					shared_epoch_changes: sc_consensus_babe::BabeLink::epoch_changes(babe_link).clone(),
-				},
-				grandpa: crate::rpc::GrandpaDeps {
-					shared_voter_state: shared_voter_state.clone(),
-					shared_authority_set: shared_authority_set.clone(),
-				},
-			};
-			rpc_setup = Some((shared_voter_state));
-			Ok(crate::rpc::create_full(deps))
+
+			let shared_authority_set = grandpa_link.shared_authority_set().clone();
+			let shared_voter_state = grandpa::SharedVoterState::empty();
+
+			rpc_setup = Some((shared_voter_state.clone()));
+
+			let babe_link = import_setup
+				.as_ref()
+				.map(|s| &s.2)
+				.expect("BabeLink is present for full services or set up failed; qed.");
+
+			let babe_config = babe_link.config().clone();
+			let shared_epoch_changes = babe_link.epoch_changes().clone();
+
+			let client = builder.client().clone();
+			let pool = builder.pool().clone();
+			let select_chain = builder
+				.select_chain()
+				.cloned()
+				.expect("SelectChain is present for full services or set up failed; qed.");
+			let keystore = builder.keystore().clone();
+
+			Ok(move |deny_unsafe| {
+				let deps = crate::rpc::FullDeps {
+					client: client.clone(),
+					pool: pool.clone(),
+					select_chain: select_chain.clone(),
+					deny_unsafe,
+					babe: crate::rpc::BabeDeps {
+						babe_config: babe_config.clone(),
+						shared_epoch_changes: shared_epoch_changes.clone(),
+						keystore: keystore.clone(),
+					},
+					grandpa: crate::rpc::GrandpaDeps {
+						shared_voter_state: shared_voter_state.clone(),
+						shared_authority_set: shared_authority_set.clone(),
+					},
+				};
+
+				crate::rpc::create_full(deps)
+			})
 		})?;
 
 		(builder, import_setup, inherent_data_providers, rpc_setup)
@@ -124,8 +141,8 @@ macro_rules! new_full {
 		let service = builder
 			.with_finality_proof_provider(|client, backend| {
 				// GenesisAuthoritySetProvider is implemented for StorageAndProofProvider
-				let provider = client as Arc<dyn StorageAndProofProvider<_, _>>;
-				Ok(Arc::new(sc_finality_grandpa::FinalityProofProvider::new(backend, provider)) as _)
+				let provider = client as Arc<dyn grandpa::StorageAndProofProvider<_, _>>;
+				Ok(Arc::new(grandpa::FinalityProofProvider::new(backend, provider)) as _)
 			})?
 			.build()?;
 
@@ -140,7 +157,11 @@ macro_rules! new_full {
 		($with_startup_data)(&block_import, &babe_link);
 
 		if let sc_service::config::Role::Authority { .. } = &role {
-			let proposer = sc_basic_authorship::ProposerFactory::new(service.client(), service.transaction_pool());
+			let proposer = sc_basic_authorship::ProposerFactory::new(
+				service.client(),
+				service.transaction_pool(),
+				service.prometheus_registry().as_ref(),
+			);
 
 			let client = service.client();
 			let select_chain = service.select_chain().ok_or(sc_service::Error::SelectChainRequired)?;
@@ -172,7 +193,7 @@ macro_rules! new_full {
 			None
 			};
 
-		let config = sc_finality_grandpa::Config {
+		let config = grandpa::Config {
 			// FIXME #1578 make this available through chainspec
 			gossip_duration: std::time::Duration::from_millis(333),
 			justification_period: 512,
@@ -190,22 +211,22 @@ macro_rules! new_full {
 			// and vote data availability than the observer. The observer has not
 			// been tested extensively yet and having most nodes in a network run it
 			// could lead to finality stalls.
-			let grandpa_config = sc_finality_grandpa::GrandpaParams {
+			let grandpa_config = grandpa::GrandpaParams {
 				config,
 				link: grandpa_link,
 				network: service.network(),
 				inherent_data_providers: inherent_data_providers.clone(),
 				telemetry_on_connect: Some(service.telemetry_on_connect_stream()),
-				voting_rule: sc_finality_grandpa::VotingRulesBuilder::default().build(),
+				voting_rule: grandpa::VotingRulesBuilder::default().build(),
 				prometheus_registry: service.prometheus_registry(),
 				shared_voter_state,
 			};
 
 			// the GRANDPA voter task is considered infallible, i.e.
 			// if it fails we take down the service with it.
-			service.spawn_essential_task("grandpa-voter", sc_finality_grandpa::run_grandpa_voter(grandpa_config)?);
+			service.spawn_essential_task("grandpa-voter", grandpa::run_grandpa_voter(grandpa_config)?);
 		} else {
-			sc_finality_grandpa::setup_disabled_grandpa(service.client(), &inherent_data_providers, service.network())?;
+			grandpa::setup_disabled_grandpa(service.client(), &inherent_data_providers, service.network())?;
 			}
 
 		Ok((service, inherent_data_providers))
diff --git a/utilities/Cargo.toml b/utilities/Cargo.toml
index feb249647a..99f9aa6964 100644
--- a/utilities/Cargo.toml
+++ b/utilities/Cargo.toml
@@ -6,10 +6,10 @@ edition = "2018"
 
 [dependencies]
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false }
-sp-runtime = { version = "2.0.0-alpha.8", default-features = false }
-frame-support = { package = "frame-support", version = "2.0.0-alpha.8", default-features = false }
-rstd = { package = "sp-std", version = "2.0.0-alpha.8", default-features = false }
-runtime-io = { package = "sp-io", version = "2.0.0-alpha.8", default-features = false }
+sp-runtime = { version = "2.0.0-rc1", default-features = false }
+frame-support = { package = "frame-support", version = "2.0.0-rc1", default-features = false }
+rstd = { package = "sp-std", version = "2.0.0-rc1", default-features = false }
+runtime-io = { package = "sp-io", version = "2.0.0-rc1", default-features = false }
 
 [features]
 default = ["std"]