diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
index 60639116449..05b4dfb3be1 100644
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -15,11 +15,13 @@ Describe what is changed and your reasoning.
 
 ### Sanity
 - [ ] I have incremented the runtime version number
+- [ ] I have incremented `transaction_version` if needed
 
 ### Quality
 - [ ] I have added unit tests, and they are passing
 - [ ] I have added benchmarks to my pallet
 - [ ] I have added the benchmarks to the node
+- [ ] I have added potential RPC calls to the node
 - [ ] I have added comments and documentation
 
 ### Testing
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 086b19151d2..5799e47eda8 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -1,4 +1,4 @@
-name: Create binaries for release
+name: Create artefacts for release
 
 on:
   release:  
@@ -26,77 +26,4 @@ jobs:
           tag_with_ref: true
           dockerfile: '.maintain/docker/Dockerfile'
           cache_froms: nodlecode/chain/nodle-chain:latest
-          add_git_labels: true
-
-  node:
-    name: Compile and make available binaries
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-latest, macos-latest]
-
-    steps:
-    - uses: actions/checkout@v2
-
-    - name: Cache cargo registry  
-      uses: actions/cache@v1  
-      with: 
-        path: ~/.cargo/registry 
-        key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
-        restore-keys: |
-          ${{ runner.os }}-cargo-registry-
-
-    - name: Cache cargo index 
-      uses: actions/cache@v1  
-      with: 
-        path: ~/.cargo/git  
-        key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.lock') }}
-        restore-keys: |
-          ${{ runner.os }}-cargo-index-
-
-    - name: Cache cargo build
-      uses: actions/cache@v1
-      with:
-        path: target
-        key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
-        restore-keys: |
-          ${{ runner.os }}-cargo-build-target-
-
-    - name: Install ubuntu native dependencies
-      if: matrix.os == 'ubuntu-latest'
-      run: sudo apt install -y cmake pkg-config libssl-dev git gcc build-essential clang libclang-dev
-
-    - name: Cleanup ubuntu filesystem
-      if: matrix.os == 'ubuntu-latest'
-      run: sudo apt clean
-
-    - name: Install mac os native dependencies
-      if: matrix.os == 'macos-latest'
-      run: brew install openssl cmake llvm
-
-    - name: Setup toolchain
-      run: ./scripts/init.sh
-
-    - name: Build in release mode
-      run: cargo build -p nodle-chain --release
-
-    - name: Upload node binary
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ github.event.release.upload_url }}
-        asset_path: ./target/release/nodle-chain
-        asset_name: nodle-chain-${{ matrix.os }}-${{ github.event.release.tag_name }}
-        asset_content_type: binary/octet-stream
-
-    - name: Upload runtime WASM blob
-      if: matrix.os == 'ubuntu-latest' # OS was chosen arbitrarily
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ github.event.release.upload_url }}
-        asset_path: target/release/wbuild/target/wasm32-unknown-unknown/release/nodle_chain_runtime.wasm
-        asset_name: runtime-${{ github.event.release.tag_name }}.wasm
-        asset_content_type: binary/octet-stream
\ No newline at end of file
+          add_git_labels: true
\ No newline at end of file
diff --git a/Cargo.lock b/Cargo.lock
index 531d612c010..fc869f843eb 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -112,18 +112,6 @@ 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"
@@ -176,7 +164,7 @@ 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]]
@@ -185,20 +173,30 @@ 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",
@@ -211,6 +209,30 @@ 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"
@@ -221,6 +243,12 @@ 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"
@@ -417,20 +445,6 @@ 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"
@@ -724,13 +738,36 @@ 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",
 ]
 
@@ -741,7 +778,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9f02af974daeee82218205558e51ec8768b48cf524bd01d550abe5573a608285"
 dependencies = [
  "crossbeam-epoch",
- "crossbeam-utils",
+ "crossbeam-utils 0.7.2",
  "maybe-uninit",
 ]
 
@@ -753,7 +790,7 @@ checksum = "058ed274caafc1f60c4997b5fc07bf7dc7cca454af7c6e81edffe5f33f70dace"
 dependencies = [
  "autocfg 1.0.0",
  "cfg-if",
- "crossbeam-utils",
+ "crossbeam-utils 0.7.2",
  "lazy_static",
  "maybe-uninit",
  "memoffset",
@@ -767,7 +804,17 @@ 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]]
@@ -831,9 +878,9 @@ 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"
@@ -843,7 +890,7 @@ checksum = "2127768764f1556535c01b5326ef94bd60ff08dcfbdc544d53e69ed155610f5d"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -939,7 +986,7 @@ checksum = "946ee94e3dbf58fdd324f9ce245c7b238d46a66f00e86a020b71996349e46cce"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -1033,7 +1080,7 @@ checksum = "aa4da3c766cd7a0db8242e326e9e4e081edd567072893ed320008189715366a4"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
  "synstructure",
 ]
 
@@ -1122,18 +1169,18 @@ checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
 
 [[package]]
 name = "fork-tree"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e085ec973163e0c957a3e25beddb97944689ea526f057a4b4592728ab45a357a"
+checksum = "48feabdc3cda303027446b7294dc6dc6dda712de8e14874f0e0df366a630326f"
 dependencies = [
  "parity-scale-codec",
 ]
 
 [[package]]
 name = "frame-benchmarking"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4d146476da2981e83811578fd5e21f84187f42393d23e1ce2fd4a14870e760f1"
+checksum = "00e5f8abfba8a7f0a89e5aae4ca9be5b86b88e9c93ccfc11a4b44485f7c6a1dd"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -1149,9 +1196,9 @@ dependencies = [
 
 [[package]]
 name = "frame-benchmarking-cli"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d6883afdada136802e51273ae7d6ebc03428f564fa8467c76a6d4c20dc5d6c9f"
+checksum = "1ad58203d80eff3af6aab1a6b6fe1d19b588533fc00e8172fca5115e285f23ae"
 dependencies = [
  "frame-benchmarking",
  "parity-scale-codec",
@@ -1168,9 +1215,9 @@ dependencies = [
 
 [[package]]
 name = "frame-executive"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ad6747f1e57d9074911ddfa2c36506baa70895aba99a2d63293aaff4c8f5d788"
+checksum = "ddad67072eaa82fea8b6089827fc6821dc2010016ce0b4a0f47afb8214cabf59"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -1184,9 +1231,9 @@ dependencies = [
 
 [[package]]
 name = "frame-metadata"
-version = "11.0.0-alpha.8"
+version = "11.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "60b1f439f895a2969285d24d9e8903c2183a3378ca6ce58f1ffe4fa8cc7e3e40"
+checksum = "cffe912dd479554338da6804c51704c901a3664a785746909bc1679df675839d"
 dependencies = [
  "parity-scale-codec",
  "serde",
@@ -1196,9 +1243,9 @@ dependencies = [
 
 [[package]]
 name = "frame-support"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "801c1c348d96f817484b57250a7adf82c6e7d6efd90cc39c553b3bdad3a05cb2"
+checksum = "9c68f90e4ca833a36a4ad87b40abaf8dc37805a28a7976d814765b33e8381b67"
 dependencies = [
  "bitmask",
  "frame-metadata",
@@ -1209,6 +1256,7 @@ dependencies = [
  "parity-scale-codec",
  "paste",
  "serde",
+ "smallvec 1.4.0",
  "sp-arithmetic",
  "sp-core",
  "sp-inherents",
@@ -1221,45 +1269,45 @@ dependencies = [
 
 [[package]]
 name = "frame-support-procedural"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ede36e595bf4deb14b39e3852c42572c63e87af587c10d3f034296175da18c47"
+checksum = "e0590324d10b03bad1fcb9fe3572682dc94471dea07a8a07808a54a8ae4bb4f6"
 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-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5ba02050eafbb4ae7751e9753ece93527e1c49902731517cb201463eef7f0a11"
+checksum = "cc0f2b9861b48236d17601de09655e20352af6040189fa3d4fe9e440b4cc886f"
 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-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "37e52653168aa702585a80016110a9ea6889f0f38300c3233c50f0e2e7feefa5"
+checksum = "2f34905d916c2027e9f114f8b76f17e2be0a7bca9116838979b05a1efc86224f"
 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-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d8f2f6a94c034bbd2348771cd2c0b3a258ea8f240de2365ff9554764458059af"
+checksum = "acec04d2c2023ecb5a56a2d0ec71ee0c3195444df7ce07b095a311f5d8c568a4"
 dependencies = [
  "frame-support",
  "impl-trait-for-tuples",
@@ -1274,9 +1322,9 @@ dependencies = [
 
 [[package]]
 name = "frame-system-rpc-runtime-api"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70a875054d7de286f58109000a05ffabf72512e9ba8227b47c0f295179d7f98e"
+checksum = "cd5ddb08ba65a4146afe95182aaa541ea7f44407dd36327a4e4937a12914d5fc"
 dependencies = [
  "parity-scale-codec",
  "sp-api",
@@ -1421,7 +1469,7 @@ dependencies = [
  "proc-macro-hack",
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -1439,6 +1487,16 @@ 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"
@@ -1450,6 +1508,10 @@ 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"
@@ -1583,6 +1645,19 @@ 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"
@@ -1908,7 +1983,7 @@ checksum = "7ef5550a42e3740a0e71f909d4c861056a284060af885ae7aa6242820f920d9d"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -1966,6 +2041,15 @@ 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"
@@ -2037,7 +2121,7 @@ dependencies = [
  "proc-macro-crate",
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -2115,9 +2199,9 @@ 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",
 ]
@@ -2181,9 +2265,9 @@ checksum = "3576a87f2ba00f6f106fdfcd16db1d698d648a26ad8e0573cad8537c3c362d2a"
 
 [[package]]
 name = "libc"
-version = "0.2.70"
+version = "0.2.71"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3baa92041a6fec78c687fa0cc2b3fae8884f743d672cf551bed1d6dac6988d0f"
+checksum = "9457b06509d27052635f90d6466700c65095fdf75409b3fbdd903e988b886f49"
 
 [[package]]
 name = "libflate"
@@ -2221,9 +2305,9 @@ 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",
@@ -2244,7 +2328,7 @@ 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",
@@ -2253,9 +2337,9 @@ 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",
@@ -2269,7 +2353,7 @@ dependencies = [
  "log",
  "multihash",
  "multistream-select",
- "parity-multiaddr 0.8.0",
+ "parity-multiaddr 0.9.0",
  "parking_lot 0.10.2",
  "pin-project",
  "prost",
@@ -2287,19 +2371,19 @@ 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",
@@ -2308,9 +2392,9 @@ 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",
@@ -2324,9 +2408,9 @@ 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",
@@ -2351,11 +2435,11 @@ 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",
@@ -2373,9 +2457,9 @@ 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",
@@ -2389,9 +2473,9 @@ 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",
@@ -2410,9 +2494,9 @@ 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",
@@ -2425,9 +2509,9 @@ dependencies = [
 
 [[package]]
 name = "libp2p-secio"
-version = "0.18.0"
+version = "0.19.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a7a0509a7e47245259954fef58b85b81bf4d29ae33a4365e38d718a866698774"
+checksum = "7b73f0cc119c83a5b619d6d11074a319fdb4aa4daf8088ade00d511418566e28"
 dependencies = [
  "aes-ctr",
  "ctr",
@@ -2455,9 +2539,9 @@ 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",
@@ -2470,24 +2554,25 @@ 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",
@@ -2499,9 +2584,9 @@ 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",
@@ -2520,9 +2605,9 @@ 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",
@@ -2617,9 +2702,9 @@ dependencies = [
 
 [[package]]
 name = "lru"
-version = "0.4.4"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "348b828e43d7d1d7a247a6ece0c041d95fb0e34d5496bb4c308428face25df6b"
+checksum = "9e488db3a9e108382265a30764f43cfc87517322e5d04ae0603b32a33461dca3"
 dependencies = [
  "hashbrown",
 ]
@@ -2780,9 +2865,9 @@ 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",
@@ -2801,9 +2886,9 @@ 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",
@@ -2879,7 +2964,7 @@ dependencies = [
 
 [[package]]
 name = "nodle-chain"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-benchmarking",
  "frame-benchmarking-cli",
@@ -2888,14 +2973,17 @@ dependencies = [
  "nodle-chain-runtime",
  "pallet-im-online",
  "pallet-root-of-trust-rpc",
+ "pallet-transaction-payment-rpc",
  "sc-authority-discovery",
  "sc-basic-authorship",
  "sc-cli",
  "sc-client-api",
  "sc-consensus",
  "sc-consensus-babe",
+ "sc-consensus-babe-rpc",
  "sc-executor",
  "sc-finality-grandpa",
+ "sc-finality-grandpa-rpc",
  "sc-network",
  "sc-rpc",
  "sc-service",
@@ -2909,12 +2997,13 @@ dependencies = [
  "sp-runtime",
  "structopt",
  "substrate-build-script-utils",
+ "substrate-frame-rpc-system",
  "vergen",
 ]
 
 [[package]]
 name = "nodle-chain-runtime"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-benchmarking",
  "frame-executive",
@@ -3085,16 +3174,6 @@ 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"
@@ -3127,9 +3206,9 @@ dependencies = [
 
 [[package]]
 name = "pallet-authority-discovery"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d7d687e44e8198c562f62f699f4043e261c86182dd267aa3bfc856cd380f187b"
+checksum = "d906b2c6b64fb1e0f3807b5932bce38e073eb826cc6ed9943152358f184e943c"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3138,35 +3217,31 @@ dependencies = [
  "serde",
  "sp-application-crypto",
  "sp-authority-discovery",
- "sp-core",
- "sp-io",
  "sp-runtime",
  "sp-std",
 ]
 
 [[package]]
 name = "pallet-authorship"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "30053f51607457afb60e38190fec5a234f1303aea44f18fabae6222a518a54cf"
+checksum = "47559c6f5570d00961a00766c130f4698cab3a4b8a1aaac39b2aca8d7bd6da5d"
 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-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cc818592d1467681d735917e4d068fabf68f8ddbec4c5cd3a85b5c025434cf66"
+checksum = "b014eb08cabfeb6b3d10a1e8975c6c2f933a68cca462825e7ec98bc78c757ff4"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3187,25 +3262,24 @@ dependencies = [
 
 [[package]]
 name = "pallet-balances"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "15039f4d4586f34d83588a1cb9dbd74ed0cd9e7c6df4c45da707bd8f3ed235f2"
+checksum = "d4f2b26ed6059d9c5b0d03f08a3147b117035ded45bada2e3efc75a2c1e1cb0d"
 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-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f596a5208d11de9629d8528b180472ef8a6e023b69aed7a1cd1b422804d885d5"
+checksum = "9de653fd137a36d3072d3b09cbdbe79acabffbcb3e28e99dcb33fe6cee3f2add"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -3220,7 +3294,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-emergency-shutdown"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -3236,9 +3310,9 @@ dependencies = [
 
 [[package]]
 name = "pallet-finality-tracker"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1bee38fcd8fcc35695fe61bc8ccc71e49264c65d2df95ab8f74bfc5e1e7e663a"
+checksum = "db80efa85bc68fd2ee7526aab5e90b5ac5759006d428b386d97329ec1b856d7c"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3253,9 +3327,9 @@ dependencies = [
 
 [[package]]
 name = "pallet-grandpa"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "76c14a3561e27c636f8012e19b5853af63e0552c6113ba141c34e176b7a129ab"
+checksum = "7459e04204d05c3162d16838243f6e3692942aef9cc0dfcabc8a329ca88171b6"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3274,9 +3348,9 @@ dependencies = [
 
 [[package]]
 name = "pallet-identity"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1f4cd0678a2d2ff51920d908353efbb65e043b553bb2d5297ccb63d4f5608a7"
+checksum = "6d8cfb03ed8b5ee4d1110a4af166a745d708e083e9da471d704b4f661421bf12"
 dependencies = [
  "enumflags2",
  "frame-benchmarking",
@@ -3291,9 +3365,9 @@ dependencies = [
 
 [[package]]
 name = "pallet-im-online"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ae2a5ac6da3abca80ba08024da4ceca7cdd0a9af17942d74156f5d4b5e9ec82f"
+checksum = "331af515bb591d3e833c37060897edd455e249478bd9429388ee04e79aaa1f7c"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -3312,9 +3386,9 @@ dependencies = [
 
 [[package]]
 name = "pallet-indices"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "31cf5e1462cab8d3b7fc3c949ca0e30d4414026719a723d266a88526e988b6ec"
+checksum = "82cbaf3a7b9afaa0815e784d323813db339dcfb15927400db6a68615ae6ecfaa"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3329,9 +3403,9 @@ dependencies = [
 
 [[package]]
 name = "pallet-mandate"
-version = "2.0.3"
+version = "2.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b1d6fc483ed892f493b754cfea989ecefa3267122e90736c2ef5986449ca2b79"
+checksum = "06217260759465d3bf8da6f2038057c4d40f94e14cb75f5b350334d46fcd674e"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3345,9 +3419,9 @@ dependencies = [
 
 [[package]]
 name = "pallet-membership"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7729e1407241efb7dc570f6bfe1dff53f45b90b330def7ff3720bf9974780c02"
+checksum = "3cdac7f750fe4222a769fbdc01338f6f36238f982be7487a6ad2fd7008f6b135"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3360,9 +3434,9 @@ dependencies = [
 
 [[package]]
 name = "pallet-offences"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e52e9cfefab7995e6b72fe1313e9488ac9d79a74ba5bc928fd6df591bdcbb9ed"
+checksum = "92c28e928f9f57f8eaa5a69e954823ffec4bc2456a032ce42e1d047a2abbf5a9"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3376,7 +3450,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-poa"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3390,9 +3464,9 @@ dependencies = [
 
 [[package]]
 name = "pallet-randomness-collective-flip"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "07e124db9e87cb5213189090346d92ccc603905b011e746b38743c0f7f771aa6"
+checksum = "dc5ffcf6d8a1b1ff8e9d9573e9000082eede8eeacf4f1f8b1aeef2e8c0175876"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3404,9 +3478,9 @@ dependencies = [
 
 [[package]]
 name = "pallet-recovery"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "036fd68bb70a9b52e0ca31da88c330b69829a287a3975b0ab49a4652bb80f98d"
+checksum = "cd17c5828f529ccb67ab121c28664f462a14e0c3b3aef4e2653b4ed302b5f105"
 dependencies = [
  "enumflags2",
  "frame-support",
@@ -3420,7 +3494,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-reserve"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -3436,7 +3510,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-root-of-trust"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -3453,7 +3527,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-root-of-trust-rpc"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 dependencies = [
  "jsonrpc-core",
  "jsonrpc-core-client",
@@ -3467,7 +3541,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-root-of-trust-runtime-api"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 dependencies = [
  "parity-scale-codec",
  "sp-api",
@@ -3475,9 +3549,9 @@ dependencies = [
 
 [[package]]
 name = "pallet-session"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "11b944b9bc1bee36ae10168134de413c2429da43c163df90c0666afbf5f47f30"
+checksum = "9517c710f3e0f690c76f85ef3f5ce26fe3cb9ea8f0e260affdd17f4e157c7e14"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3485,7 +3559,6 @@ dependencies = [
  "pallet-timestamp",
  "parity-scale-codec",
  "serde",
- "sp-io",
  "sp-runtime",
  "sp-session",
  "sp-staking",
@@ -3495,7 +3568,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-tcr"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -3511,9 +3584,9 @@ dependencies = [
 
 [[package]]
 name = "pallet-timestamp"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "249f2f5688bc6c8fb43ceb36ac78d0a92ec0c6862b90c3b6a8bf0b94a2e4d672"
+checksum = "8118c5c7998c44c78b2d018b1f9c6430bbd9831f76457d55dfacf425e1aa540c"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -3530,23 +3603,43 @@ dependencies = [
 
 [[package]]
 name = "pallet-transaction-payment"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1ce6987f7e7eb7bd2f13a33416dacc3148ac2e6641cb172a98faef9408179eaf"
+checksum = "2ccbccc461ccf21c1fe6972aa2b8d02e4a629c339914fd5eb4b4348d30900fbe"
 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-rc2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec66203c11ab6ceeb8e44b1ee11e5d096077e9a4edc5f569020a92ad63ecaa31"
+dependencies = [
+ "jsonrpc-core",
+ "jsonrpc-core-client",
+ "jsonrpc-derive",
+ "pallet-transaction-payment-rpc-runtime-api",
+ "parity-scale-codec",
+ "serde",
+ "sp-api",
+ "sp-blockchain",
+ "sp-core",
+ "sp-rpc",
+ "sp-runtime",
+]
+
 [[package]]
 name = "pallet-transaction-payment-rpc-runtime-api"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "df1c5b6c895a1a35669431513d2a953d29e8c5fa04df05c354407de78e567ce3"
+checksum = "e70539d8cf443dcc4e55e6b2694fea202c65becc50529adea5b077b17725dda2"
 dependencies = [
  "frame-support",
  "parity-scale-codec",
@@ -3558,9 +3651,9 @@ dependencies = [
 
 [[package]]
 name = "pallet-utility"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d93b57387e9f1004cffb08a4b9b805b56659044634ad202ef07589442aa3d916"
+checksum = "bc217de3709e9151fd2476edf82d5a1d27fa129e37ef53fcc61197095207ac3f"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -3575,9 +3668,9 @@ dependencies = [
 
 [[package]]
 name = "pallet-vesting"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9df3b8a2b0036f548baabadc6da8463bbf8e835a9c35854ca26558b862e392a3"
+checksum = "f470c3d715e8f3aa50498cffb14c1f39df23fc544a61141b00bbd62071ed065f"
 dependencies = [
  "enumflags2",
  "frame-benchmarking",
@@ -3585,7 +3678,6 @@ dependencies = [
  "frame-system",
  "parity-scale-codec",
  "serde",
- "sp-io",
  "sp-runtime",
  "sp-std",
 ]
@@ -3624,9 +3716,9 @@ 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",
@@ -3677,7 +3769,7 @@ dependencies = [
  "proc-macro-crate",
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -3708,7 +3800,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f557c32c6d268a07c921471619c0295f5efad3a0e76d4f97a05c091a51d110b2"
 dependencies = [
  "proc-macro2",
- "syn 1.0.22",
+ "syn 1.0.25",
  "synstructure",
 ]
 
@@ -3770,9 +3862,9 @@ 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",
@@ -3780,14 +3872,14 @@ 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]]
@@ -3826,9 +3918,9 @@ 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",
@@ -3851,7 +3943,7 @@ checksum = "e58db2081ba5b4c93bd6be09c40fd36cb9193a8336c384f3b40012e531aa7e40"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -3866,6 +3958,18 @@ 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"
@@ -3920,7 +4024,7 @@ dependencies = [
  "proc-macro-error-attr",
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
  "version_check",
 ]
 
@@ -3932,16 +4036,16 @@ 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"
@@ -3951,9 +4055,9 @@ checksum = "8e946095f9d3ed29ec38de908c22f95d9ac008e424c7bcae54c75a79c527c694"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.14"
+version = "1.0.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "de40dd4ff82d9c9bab6dae29dbab1167e515f8df9ed17d2987cb6012db206933"
+checksum = "1502d12e458c49a4c9cbff560d0fe0060c252bc29799ed94ca2ed4bb665a0101"
 dependencies = [
  "unicode-xid 0.2.0",
 ]
@@ -4005,7 +4109,7 @@ checksum = "02b10678c913ecbd69350e8535c3aef91a8676c0773fc1d7b95cdd196d7f2f26"
 dependencies = [
  "bytes 0.5.4",
  "heck",
- "itertools",
+ "itertools 0.8.2",
  "log",
  "multimap",
  "petgraph",
@@ -4022,10 +4126,10 @@ 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]]
@@ -4311,7 +4415,7 @@ checksum = "08a89b46efaf957e52b18062fb2f4660f8b8a4dde1807ca002690868ef2c85a9"
 dependencies = [
  "crossbeam-deque",
  "crossbeam-queue",
- "crossbeam-utils",
+ "crossbeam-utils 0.7.2",
  "lazy_static",
  "num_cpus",
 ]
@@ -4359,7 +4463,7 @@ checksum = "602eb59cda66fcb9aec25841fb76bc01d2b34282dcdd705028da297db6f3eec8"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -4462,7 +4566,7 @@ dependencies = [
  "base64 0.11.0",
  "blake2b_simd",
  "constant_time_eq",
- "crossbeam-utils",
+ "crossbeam-utils 0.7.2",
 ]
 
 [[package]]
@@ -4545,9 +4649,9 @@ dependencies = [
 
 [[package]]
 name = "sc-authority-discovery"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ddc6bfa2457a7270b96fcfdd00a635d6690b1b0df598eca740fe71aef21f0114"
+checksum = "2606d3d0619d2b5debefccb6be0ea7e1a44c3751a4b442568a347169c0eba243"
 dependencies = [
  "bytes 0.5.4",
  "derive_more",
@@ -4573,9 +4677,9 @@ dependencies = [
 
 [[package]]
 name = "sc-basic-authorship"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4642892f8b92ed7a3402af425fcabed35652813dbd3b1689d8808a3a59859e80"
+checksum = "097451fa0fd718899007f3069b7aa717341d5ad1d772b2b494975faf7a19aed7"
 dependencies = [
  "futures 0.3.5",
  "futures-timer 3.0.2",
@@ -4583,6 +4687,7 @@ dependencies = [
  "parity-scale-codec",
  "sc-block-builder",
  "sc-client-api",
+ "sc-proposer-metrics",
  "sc-telemetry",
  "sp-api",
  "sp-blockchain",
@@ -4591,14 +4696,15 @@ 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-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2f1b5be3c97274faa61528af80d84a7f881c41b84bfeb473d328848327c458ca"
+checksum = "7bd27f65d2b9bd07d790b8f6d43432514200d960b830392a39b0450815980788"
 dependencies = [
  "parity-scale-codec",
  "sc-client-api",
@@ -4613,9 +4719,9 @@ dependencies = [
 
 [[package]]
 name = "sc-chain-spec"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ecf7e2267f42d66cf1b5894ed26cb0f93bc86ec20b2671d329754c41ccc8517f"
+checksum = "3a9ad5544c6586fd86a2a9c6cad778d309230969992d00e20a54b8daeac56380"
 dependencies = [
  "impl-trait-for-tuples",
  "sc-chain-spec-derive",
@@ -4630,28 +4736,27 @@ dependencies = [
 
 [[package]]
 name = "sc-chain-spec-derive"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f5570c450f51a23eade7c9c41d7b57d7e993ffd6f2965c595a816ad0c0158076"
+checksum = "e62e7e16977c70551ebef45363a08db7d6dca648ea0e22032d954706a18542a3"
 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-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2da02165525fde48d931ac183305aace5238f9f2c82d05db893958b5d76d3395"
+checksum = "9d3b51b14f41b7d47d05f0f9cd46b8e1cb4c9d88f4078ad283609abadfd6b512"
 dependencies = [
  "ansi_term 0.12.1",
- "app_dirs",
  "atty",
  "chrono",
- "clap",
  "derive_more",
+ "directories",
  "env_logger",
  "fdlimit",
  "futures 0.3.5",
@@ -4685,9 +4790,9 @@ dependencies = [
 
 [[package]]
 name = "sc-client-api"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "99718588c70ae9dcbb8d4f2b4a232d9608c3b4e450c84ca651863bc3b92fdca9"
+checksum = "0bd10f807d42e41b22836d3ad7a3780766a46494a127e96d7cd8c60f120e7c1f"
 dependencies = [
  "derive_more",
  "fnv",
@@ -4722,9 +4827,9 @@ dependencies = [
 
 [[package]]
 name = "sc-client-db"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b0987a05f0c4905197eec4e9819657fe6e107550deb6afc5895009c9d0814fac"
+checksum = "be6b437006cf156445d56d18f598013e463b7483c8dde4aa9279858af9874cf2"
 dependencies = [
  "blake2-rfc",
  "hash-db",
@@ -4752,9 +4857,9 @@ dependencies = [
 
 [[package]]
 name = "sc-consensus"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "40a357fdfbd672ad59aeccbcefa07e94853c83652bb6018080e4345cdeceb52c"
+checksum = "9176e4a01034f620971cfc4523323cea712e29ef44340c57f559b67c24d0eccf"
 dependencies = [
  "sc-client-api",
  "sp-blockchain",
@@ -4764,9 +4869,9 @@ dependencies = [
 
 [[package]]
 name = "sc-consensus-babe"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3afb94dd52a4f9d5ca73ab6a00590a785bc23b7616e5047b15f8cb50da295034"
+checksum = "0a3ba933924d362000fdaa193f616867d54d9849d7ff0027aa9d67d867ef3b8c"
 dependencies = [
  "derive_more",
  "fork-tree",
@@ -4805,11 +4910,35 @@ dependencies = [
  "substrate-prometheus-endpoint",
 ]
 
+[[package]]
+name = "sc-consensus-babe-rpc"
+version = "0.8.0-rc2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ad8adf0f0cf997bd4ad851f74cacb26942ede4dab3826697efbc1f4911cda36d"
+dependencies = [
+ "derive_more",
+ "futures 0.3.5",
+ "jsonrpc-core",
+ "jsonrpc-core-client",
+ "jsonrpc-derive",
+ "sc-consensus-babe",
+ "sc-consensus-epochs",
+ "sc-keystore",
+ "sc-rpc-api",
+ "serde",
+ "sp-api",
+ "sp-blockchain",
+ "sp-consensus",
+ "sp-consensus-babe",
+ "sp-core",
+ "sp-runtime",
+]
+
 [[package]]
 name = "sc-consensus-epochs"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "832860ddc947c2e50f3574e8c8808e0047478d70cc2320b77231f406e84fbf36"
+checksum = "315d678d1b7cc2c35ccfbfe17609edb97ab3b1a0f86c08259d6d46588da0f6d6"
 dependencies = [
  "fork-tree",
  "parity-scale-codec",
@@ -4821,9 +4950,9 @@ dependencies = [
 
 [[package]]
 name = "sc-consensus-slots"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "40e2a4501fc2b0f9dd45a7a2ce2efeed282de6a3fa7d2e6587aabbe6ff6e876e"
+checksum = "f2c2733316f0e49bbd771e532bf0618db4357e13635eb95474284ee5282b8db0"
 dependencies = [
  "futures 0.3.5",
  "futures-timer 3.0.2",
@@ -4844,9 +4973,9 @@ dependencies = [
 
 [[package]]
 name = "sc-consensus-uncles"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc2"
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-checksum = "27d27643a13a7ae005d59c2d4b662d4a957225c97e2baff063cb0610f8411046"
+checksum = "5b01d05567cd20dce60f710400efa60eef237cbd3e344aef5c4677cad465f604"
 dependencies = [
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  "sc-client-api",
@@ -4859,9 +4988,9 @@ dependencies = [
 
 [[package]]
 name = "sc-executor"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3df607e93136fd953d4b0c0965e50fe4e8096e05113a3926ee0e4ef3f96419e0"
+checksum = "9b946580e4d94c494ec5bb46de021f2605bbbb3a4effd3f6b2ea511d3fb9c8cf"
 dependencies = [
  "derive_more",
  "lazy_static",
@@ -4888,9 +5017,9 @@ dependencies = [
 
 [[package]]
 name = "sc-executor-common"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "120fac2a31f3e1db6666a4f83ed496d2de2538c6395669eecf160882996571d9"
+checksum = "66949cf16144f65ac2b216bc3e38008844e35b72aff59d15455488053aecb3a7"
 dependencies = [
  "derive_more",
  "log",
@@ -4906,9 +5035,9 @@ dependencies = [
 
 [[package]]
 name = "sc-executor-wasmi"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "098dca91b82fec02aa9b6910d62ec1b4e9fd59c8164f5ea931f5ddd4a2030486"
+checksum = "7c7c04e15296e464658b908c093f0398a0588b5d4c09b10fdfc76635d2b82656"
 dependencies = [
  "log",
  "parity-scale-codec",
@@ -4922,9 +5051,9 @@ dependencies = [
 
 [[package]]
 name = "sc-executor-wasmtime"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2137d121f2ed1cb84081eb8577f53de705393cda4d582e1c9d49001da084c977"
+checksum = "e94e943e4147929fd5e07a509343ba2c9e7281c5d4ce8dd5da55918d1d489784"
 dependencies = [
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  "cranelift-wasm",
@@ -4944,9 +5073,9 @@ dependencies = [
 
 [[package]]
 name = "sc-finality-grandpa"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6e482398ef943250e9b87db96073a65315a8346f335f3cc423f07cdcebed8495"
+checksum = "f8cbbd77afb78b7a836ceae49538c743230c526dfce8c83ff9b6e0ba564daa3e"
 dependencies = [
  "assert_matches",
  "derive_more",
@@ -4980,11 +5109,29 @@ dependencies = [
  "substrate-prometheus-endpoint",
 ]
 
+[[package]]
+name = "sc-finality-grandpa-rpc"
+version = "0.8.0-rc2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "49b5a9157913ec7ab70c3e6bab851c50185a8de14dcd63aa52c135313c4efb88"
+dependencies = [
+ "derive_more",
+ "finality-grandpa",
+ "futures 0.3.5",
+ "jsonrpc-core",
+ "jsonrpc-core-client",
+ "jsonrpc-derive",
+ "log",
+ "sc-finality-grandpa",
+ "serde",
+ "serde_json",
+]
+
 [[package]]
 name = "sc-informant"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "de60dbb9c7a2fb2ae7135bedfafff120707ce6360531cc7253765508854ff663"
+checksum = "9fb47f3aac00064030a9151f93fd525199e264dc30bb41b931aed4ddf183ba36"
 dependencies = [
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  "futures 0.3.5",
@@ -5000,9 +5147,9 @@ dependencies = [
 
 [[package]]
 name = "sc-keystore"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a95c793b121902e1b9c25f1462b6899a8386cb471ddb539560d7e502cb38f8dc"
+checksum = "45ce32a92fa7284ff198804be72e0f054d64afa9fb3353805e397eb2a9864185"
 dependencies = [
  "derive_more",
  "hex",
@@ -5016,11 +5163,12 @@ dependencies = [
 
 [[package]]
 name = "sc-network"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c86c05925dd8ed72e932b6eee59651fa3815d1ea434bfd482df9b12b66beaa7"
+checksum = "cde8819b82e374d970c1a93aa483cbf9689251459000d6be2bb4bd388eab06ca"
 dependencies = [
  "bitflags",
+ "bs58",
  "bytes 0.5.4",
  "derive_more",
  "either",
@@ -5068,9 +5216,9 @@ dependencies = [
 
 [[package]]
 name = "sc-network-gossip"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "07715f7e7c253b1b1eabe0c0408e1dbd662f07eddc46e4507fee6f25992f227d"
+checksum = "830402db2cded7c94c448bbff1fbfce209208537d7a64383505f9f0620b32477"
 dependencies = [
  "futures 0.3.5",
  "futures-timer 3.0.2",
@@ -5084,9 +5232,9 @@ dependencies = [
 
 [[package]]
 name = "sc-offchain"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "30bf54ec6d3dd27bd26b8f2332557b7946785767ee4d251af8b923964b22ee24"
+checksum = "fe26c77de78b8858e882978856e33afe4611e42271f42101c6eb68efa35b5cff"
 dependencies = [
  "bytes 0.5.4",
  "fnv",
@@ -5112,9 +5260,9 @@ dependencies = [
 
 [[package]]
 name = "sc-peerset"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dbf30d5e8501147b010703c0b83cc38bf13b297c663b220a99236fcef665a7c9"
+checksum = "220264976d92b6be01fa157eb0ed13d035dbbfd563a5d62d66582f8348498291"
 dependencies = [
  "futures 0.3.5",
  "libp2p",
@@ -5124,11 +5272,21 @@ dependencies = [
  "wasm-timer",
 ]
 
+[[package]]
+name = "sc-proposer-metrics"
+version = "0.8.0-rc2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "041f3e79e1e253ff07d5265f98a0c5a9c6124e607ce4549e35f872375e4c7077"
+dependencies = [
+ "log",
+ "substrate-prometheus-endpoint",
+]
+
 [[package]]
 name = "sc-rpc"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5503c0545d7a79a0d05bcb41bb35c5b3b5d28b350ddf168cb89e6141371e3a7f"
+checksum = "0704ae199f0278d2c9817260ec40a19e02c265ee637b2d971160d35dee2ed0ea"
 dependencies = [
  "futures 0.3.5",
  "hash-db",
@@ -5159,9 +5317,9 @@ dependencies = [
 
 [[package]]
 name = "sc-rpc-api"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "51dd4ac4f4e0643146d0bcfbf8c0ad02d11c94834a4860b2417868c590730f7b"
+checksum = "35fc72e6e3ea90b8d2d381b1e5358065952bb45bd27f1e5342da04257e8d42f2"
 dependencies = [
  "derive_more",
  "futures 0.3.5",
@@ -5184,9 +5342,9 @@ dependencies = [
 
 [[package]]
 name = "sc-rpc-server"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f7d029f5a71c6ef043c1a6b3d8cc2d99e6dac44c80869032dd2894dd4c023677"
+checksum = "7e7fe5f8b44eb7586c4d1d01f1db8af83d5d77558b3c4fc71df8a8b489ce55c9"
 dependencies = [
  "jsonrpc-core",
  "jsonrpc-http-server",
@@ -5200,9 +5358,9 @@ dependencies = [
 
 [[package]]
 name = "sc-service"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "265682168d60e300657ea99d1595bbf50d6994a5469e9dbbe0537edeea6ed48f"
+checksum = "5c18610c1b8f4c242d161c52ae3779dd0baa4f99478cf40c488038799e1846e7"
 dependencies = [
  "derive_more",
  "exit-future",
@@ -5259,9 +5417,9 @@ dependencies = [
 
 [[package]]
 name = "sc-state-db"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "158ad756775c7f5ce27bef41695b9485763b999145a3781d95efcb6d6c55e02e"
+checksum = "61f83d727807c6e46bb995388bf7cac50235eef9752b122a668e3f3b1b227a36"
 dependencies = [
  "log",
  "parity-scale-codec",
@@ -5274,9 +5432,9 @@ dependencies = [
 
 [[package]]
 name = "sc-telemetry"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9dcb4a3df69e49910d4c1f4ae4b291618571cbede42679a29f70f36c83e02bdc"
+checksum = "1cd78ad27f745c235f2c676d92b4fef3a08b1a3a7f555b861e45644ba0301520"
 dependencies = [
  "bytes 0.5.4",
  "futures 0.3.5",
@@ -5297,9 +5455,9 @@ dependencies = [
 
 [[package]]
 name = "sc-tracing"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a5b31cb270c27ba07f7deb90d5188b0d97bea1a711866edd2dd07881235c49b5"
+checksum = "24ebc93a319e38f1e458157beb83a4d8732ede948f782c8e04028188d6da28ff"
 dependencies = [
  "erased-serde",
  "log",
@@ -5313,9 +5471,9 @@ dependencies = [
 
 [[package]]
 name = "sc-transaction-graph"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3209b2f4825d9dc6fd85fad566fa4c2fc0a9792ada4b23abcfa25d3c6c76f895"
+checksum = "8e879a4779bc2c0b61a7f8c4422c3c3e177351aa0dd42807e29c44bc4cf0a0d0"
 dependencies = [
  "derive_more",
  "futures 0.3.5",
@@ -5334,9 +5492,9 @@ dependencies = [
 
 [[package]]
 name = "sc-transaction-pool"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "68baf30450f1922768fec420910e7f6a4add16fd4401ef1cd76045756d22e12f"
+checksum = "72c19a30d5441c03ae8ba9962dbcf7004af4ed9b3ea9237c07f97ce9f1ee6273"
 dependencies = [
  "derive_more",
  "futures 0.3.5",
@@ -5393,6 +5551,12 @@ 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"
@@ -5416,7 +5580,7 @@ checksum = "e367622f934864ffa1c704ba2b82280aab856e3d8213c84c5720257eb34b15b9"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -5473,6 +5637,12 @@ 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"
@@ -5490,7 +5660,7 @@ checksum = "818fbf6bfa9a42d3bfcaca148547aa00c7b915bec71d1757aa2d44ca68771984"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -5524,9 +5694,9 @@ 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",
@@ -5547,16 +5717,6 @@ 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"
@@ -5620,7 +5780,7 @@ checksum = "a945ec7f7ce853e89ffa36be1e27dce9a43e82ff9093bf3461c30d5da74ed11b"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -5638,6 +5798,25 @@ 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"
@@ -5656,6 +5835,18 @@ 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"
@@ -5678,9 +5869,9 @@ dependencies = [
 
 [[package]]
 name = "sp-allocator"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "14e36dd7cae657c8fc53426539ed04667086f7fb06d2accb0bd5d4553e2d28f2"
+checksum = "e62a5b177bc81be97b3120458bda11e21ae7fb5843c081564f295bcd1082de7d"
 dependencies = [
  "derive_more",
  "log",
@@ -5691,9 +5882,9 @@ dependencies = [
 
 [[package]]
 name = "sp-api"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "933f9371cf80450d9e9e6c1ca462d4d20ea93c498efa7e6eb3016ee3616e6346"
+checksum = "fb41c442edf12352480ef1d360f845c07a7957041ef5c9e6a82b8d89f06d84fa"
 dependencies = [
  "hash-db",
  "parity-scale-codec",
@@ -5707,22 +5898,22 @@ dependencies = [
 
 [[package]]
 name = "sp-api-proc-macro"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "23654e5ada7302c765a5ac47d3f5ef44dc62bd4b0e217ba98340ff38599cbdb7"
+checksum = "fbfec91da62c21342d4f8ae0e53133dcd1fedda8ed81bbca9b2ecf159b63664d"
 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-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fb42d9d466ce8451c5e8f14d2bcee480d8d103fc7c4e36bfe1576924612abea7"
+checksum = "b5821c21386d567d01d66a0d9e2b7906125f03eaa468b45b2f5f8296bab995e1"
 dependencies = [
  "parity-scale-codec",
  "serde",
@@ -5733,14 +5924,13 @@ dependencies = [
 
 [[package]]
 name = "sp-arithmetic"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e1fc1e6a199da5eb23d823fc2a5ae6587987b037d3ffd43112730bd7c8c9ce75"
+checksum = "7097db3217b56ba51c84ed06a52998a3aa312c32b1f7f5f5380ffdd6930546bc"
 dependencies = [
  "integer-sqrt",
  "num-traits 0.2.11",
  "parity-scale-codec",
- "primitive-types",
  "serde",
  "sp-debug-derive",
  "sp-std",
@@ -5748,9 +5938,9 @@ dependencies = [
 
 [[package]]
 name = "sp-authority-discovery"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b9e893283c211114168c8ea00d27febca5dc7c32f51a299e6848657f13b8604a"
+checksum = "2f33c30f63a9777eb916e134f5cb44066570f76916a4ae9596de0a5f101101f1"
 dependencies = [
  "parity-scale-codec",
  "sp-api",
@@ -5761,9 +5951,9 @@ dependencies = [
 
 [[package]]
 name = "sp-authorship"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2fc5741e2656107421cf57cb204caae817a4cb66de3d035393b7e9edd08f0703"
+checksum = "09e45d7c9aec66f8fb797a6350dcf054adb10a00d2e0ad857a1e67d23423f6cb"
 dependencies = [
  "parity-scale-codec",
  "sp-inherents",
@@ -5773,9 +5963,9 @@ dependencies = [
 
 [[package]]
 name = "sp-block-builder"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "84ea1d9afe6a8ec6e64545ca446870c8d144a4f6c4df8c582a8aad8aa98899be"
+checksum = "aa8f551e92cab850c048458544c19689a517fb8ea7a269c62c06a9deed4433b4"
 dependencies = [
  "parity-scale-codec",
  "sp-api",
@@ -5786,9 +5976,9 @@ dependencies = [
 
 [[package]]
 name = "sp-blockchain"
-version = "2.0.0-alpha.8"
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@@ -5803,9 +5993,9 @@ dependencies = [
 
 [[package]]
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@@ -5813,9 +6003,9 @@ dependencies = [
 
 [[package]]
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@@ -5837,9 +6027,9 @@ dependencies = [
 
 [[package]]
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@@ -5855,9 +6045,9 @@ dependencies = [
 
 [[package]]
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@@ -5868,9 +6058,9 @@ dependencies = [
 
 [[package]]
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@@ -5911,9 +6101,9 @@ dependencies = [
 
 [[package]]
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@@ -5921,20 +6111,20 @@ dependencies = [
 
 [[package]]
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+version = "2.0.0-rc2"
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 dependencies = [
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+ "syn 1.0.25",
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 [[package]]
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@@ -5944,9 +6134,9 @@ dependencies = [
 
 [[package]]
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@@ -5961,9 +6151,9 @@ dependencies = [
 
 [[package]]
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 dependencies = [
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@@ -5972,9 +6162,9 @@ dependencies = [
 
 [[package]]
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+version = "2.0.0-rc2"
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@@ -5985,9 +6175,9 @@ dependencies = [
 
 [[package]]
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@@ -6006,9 +6196,9 @@ dependencies = [
 
 [[package]]
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@@ -6018,9 +6208,9 @@ dependencies = [
 
 [[package]]
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+version = "2.0.0-rc2"
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@@ -6029,9 +6219,9 @@ dependencies = [
 
 [[package]]
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+version = "2.0.0-rc2"
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@@ -6039,9 +6229,9 @@ dependencies = [
 
 [[package]]
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@@ -6049,9 +6239,9 @@ dependencies = [
 
 [[package]]
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@@ -6071,9 +6261,9 @@ dependencies = [
 
 [[package]]
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 dependencies = [
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@@ -6087,22 +6277,22 @@ dependencies = [
 
 [[package]]
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+version = "2.0.0-rc2"
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 dependencies = [
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- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
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+version = "2.0.0-rc2"
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@@ -6110,9 +6300,9 @@ dependencies = [
 
 [[package]]
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-version = "2.0.0-alpha.8"
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@@ -6124,9 +6314,9 @@ dependencies = [
 
 [[package]]
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+version = "2.0.0-rc2"
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 dependencies = [
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@@ -6135,9 +6325,9 @@ dependencies = [
 
 [[package]]
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+version = "0.8.0-rc2"
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 dependencies = [
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@@ -6155,15 +6345,15 @@ dependencies = [
 
 [[package]]
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 [[package]]
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@@ -6174,9 +6364,9 @@ dependencies = [
 
 [[package]]
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-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
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 dependencies = [
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@@ -6189,18 +6379,18 @@ dependencies = [
 
 [[package]]
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 dependencies = [
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 [[package]]
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 dependencies = [
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@@ -6214,9 +6404,9 @@ dependencies = [
 
 [[package]]
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@@ -6229,9 +6419,9 @@ dependencies = [
 
 [[package]]
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-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
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@@ -6241,9 +6431,9 @@ dependencies = [
 
 [[package]]
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-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
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 dependencies = [
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@@ -6254,9 +6444,9 @@ dependencies = [
 
 [[package]]
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-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
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 dependencies = [
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@@ -6345,7 +6535,7 @@ dependencies = [
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  "proc-macro2",
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- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -6366,7 +6556,7 @@ dependencies = [
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  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -6383,20 +6573,42 @@ dependencies = [
 
 [[package]]
 name = "substrate-build-script-utils"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bf0fa55015128457f926cbc29d8ffae6b99be98ca0bbcca90266ab1847e1787a"
+checksum = "5c748fdee2cc011fd29f7b29e3814d28c861f72ee551296212844ebcdc1c728d"
 dependencies = [
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 ]
 
+[[package]]
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+version = "2.0.0-rc2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ea555c8bea218b4da0f78f4ef9d0a89b2d99a3d2f407f489694f4766d0ddb19e"
+dependencies = [
+ "frame-system-rpc-runtime-api",
+ "futures 0.3.5",
+ "jsonrpc-core",
+ "jsonrpc-core-client",
+ "jsonrpc-derive",
+ "log",
+ "parity-scale-codec",
+ "sc-client-api",
+ "serde",
+ "sp-api",
+ "sp-blockchain",
+ "sp-core",
+ "sp-runtime",
+ "sp-transaction-pool",
+]
+
 [[package]]
 name = "substrate-prometheus-endpoint"
-version = "0.8.0-alpha.8"
+version = "0.8.0-rc2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7080bfc85d2f3b75ef9b75157ae249bf6bbade1d0a23d8a4d5aa35d47f691fa8"
+checksum = "7768670414da4fa8140c97c56891d428db38d316a9564dc4174680cf3d923e05"
 dependencies = [
- "async-std",
+ "async-std 1.6.0",
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  "futures-util",
  "hyper 0.13.5",
@@ -6525,9 +6737,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.22"
+version = "1.0.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1425de3c33b0941002740a420b1a906a350b88d08b82b2c8a01035a3f9447bac"
+checksum = "f14a640819f79b72a710c0be059dce779f9339ae046c8bef12c361d56702146f"
 dependencies = [
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@@ -6542,7 +6754,7 @@ checksum = "7be3539f6c128a931cf19dcee741c1af532c7fd387baa739c03dd2e96479338a"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -6562,7 +6774,7 @@ checksum = "67656ea1dc1b41b1451851562ea232ec2e5a80242139f7e679ceccfb5d61f545"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
  "unicode-xid 0.2.0",
 ]
 
@@ -6642,7 +6854,7 @@ checksum = "893582086c2f98cde18f906265a65b5030a074b1046c674ae898be6519a7f479"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -6782,7 +6994,7 @@ 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",
 ]
 
@@ -6825,7 +7037,7 @@ 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",
@@ -6893,7 +7105,7 @@ checksum = "df720b6581784c118f0eb4310796b12b1d242a7eb95f716a8367855325c25f89"
 dependencies = [
  "crossbeam-deque",
  "crossbeam-queue",
- "crossbeam-utils",
+ "crossbeam-utils 0.7.2",
  "futures 0.1.29",
  "lazy_static",
  "log",
@@ -6908,7 +7120,7 @@ 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",
@@ -6995,7 +7207,7 @@ checksum = "99bbad0de3fd923c9c3232ead88510b783e5a4d16a6154adffa3d53308de984c"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
 ]
 
 [[package]]
@@ -7188,9 +7400,9 @@ 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"
@@ -7246,7 +7458,7 @@ dependencies = [
  "log",
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
  "wasm-bindgen-shared",
 ]
 
@@ -7280,7 +7492,7 @@ checksum = "8eb197bd3a47553334907ffd2f16507b4f4f01bbec3ac921a7719e0decdfe72a"
 dependencies = [
  "proc-macro2",
  "quote 1.0.6",
- "syn 1.0.22",
+ "syn 1.0.25",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
@@ -7301,7 +7513,7 @@ dependencies = [
  "js-sys",
  "parking_lot 0.9.0",
  "pin-utils",
- "send_wrapper",
+ "send_wrapper 0.2.0",
  "wasm-bindgen",
  "wasm-bindgen-futures",
  "web-sys",
@@ -7443,6 +7655,25 @@ 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"
@@ -7534,12 +7765,6 @@ 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"
@@ -7571,24 +7796,24 @@ 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",
@@ -7596,11 +7821,12 @@ 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/node/Cargo.toml b/node/Cargo.toml
index ab41ea94bc0..cea252569e6 100644
--- a/node/Cargo.toml
+++ b/node/Cargo.toml
@@ -3,7 +3,7 @@ authors = ["Eliott Teissonniere <git.eliott@teissonniere.org>"]
 build = "build.rs"
 edition = "2018"
 name = "nodle-chain"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 
 [[bin]]
 name = "nodle-chain"
@@ -21,34 +21,38 @@ wasmtime = [
 ]
 
 [dependencies]
-frame-benchmarking = { version = "2.0.0-alpha.8", default-features = false }
-frame-benchmarking-cli = { version = "2.0.0-alpha.8", default-features = false }
+frame-benchmarking = { version = "2.0.0-rc2", default-features = false }
+frame-benchmarking-cli = { version = "2.0.0-rc2", default-features = false }
 futures = { version = "0.3.5", features = ["compat"] }
 jsonrpc-core = "14.0.3"
-nodle-chain-runtime = { version = "2.0.0-alpha.8", path = "../runtime" }
-pallet-im-online = { version = "2.0.0-alpha.8", default-features = false }
-pallet-root-of-trust-rpc  = { version = "2.0.0-alpha.8", path = "../pallets/root-of-trust/rpc" }
-sc-authority-discovery = "0.8.0-alpha.8"
-sc-basic-authorship = "0.8.0-alpha.8"
-sc-cli = "0.8.0-alpha.8"
-sc-client-api = "2.0.0-alpha.8"
-sc-consensus = "0.8.0-alpha.8"
-sc-consensus-babe = "0.8.0-alpha.8"
-sc-executor = "0.8.0-alpha.8"
-sc-finality-grandpa = "0.8.0-alpha.8"
-sc-network = "0.8.0-alpha.8"
-sc-rpc = "2.0.0-alpha.8"
-sc-service = "0.8.0-alpha.8"
-sc-transaction-pool = "2.0.0-alpha.8"
-sp-authority-discovery = "2.0.0-alpha.8"
-sp-consensus = "0.8.0-alpha.8"
-sp-consensus-babe = "0.8.0-alpha.8"
-sp-core = "2.0.0-alpha.8"
-sp-finality-grandpa = "2.0.0-alpha.8"
-sp-inherents = "2.0.0-alpha.8"
-sp-runtime = "2.0.0-alpha.8"
+nodle-chain-runtime = { version = "2.0.0-rc2", path = "../runtime" }
+pallet-im-online = { version = "2.0.0-rc2", default-features = false }
+pallet-root-of-trust-rpc  = { version = "2.0.0-rc2", path = "../pallets/root-of-trust/rpc" }
+pallet-transaction-payment-rpc = "2.0.0-rc2"
+sc-authority-discovery = "0.8.0-rc2"
+sc-basic-authorship = "0.8.0-rc2"
+sc-cli = "0.8.0-rc2"
+sc-client-api = "2.0.0-rc2"
+sc-consensus = "0.8.0-rc2"
+sc-consensus-babe = "0.8.0-rc2"
+sc-consensus-babe-rpc = "0.8.0-rc2"
+sc-executor = "0.8.0-rc2"
+sc-finality-grandpa = "0.8.0-rc2"
+sc-finality-grandpa-rpc = "0.8.0-rc2"
+sc-network = "0.8.0-rc2"
+sc-rpc = "2.0.0-rc2"
+sc-service = "0.8.0-rc2"
+sc-transaction-pool = "2.0.0-rc2"
+sp-authority-discovery = "2.0.0-rc2"
+sp-consensus = "0.8.0-rc2"
+sp-consensus-babe = "0.8.0-rc2"
+sp-core = "2.0.0-rc2"
+sp-finality-grandpa = "2.0.0-rc2"
+sp-inherents = "2.0.0-rc2"
+sp-runtime = "2.0.0-rc2"
 structopt = "0.3.14"
+substrate-frame-rpc-system = "2.0.0-rc2"
 
 [build-dependencies]
 vergen = "3.0.4"
-substrate-build-script-utils = "2.0.0-alpha.8"
\ No newline at end of file
+substrate-build-script-utils = "2.0.0-rc2"
\ No newline at end of file
diff --git a/node/src/service.rs b/node/src/service.rs
index ab6081951ca..ed195a6c5b6 100644
--- a/node/src/service.rs
+++ b/node/src/service.rs
@@ -44,9 +44,13 @@ native_executor_instance!(
 /// be able to perform chain operations.
 macro_rules! new_full_start {
     ($config:expr) => {{
+        use nodle_chain_runtime::{AccountId, Index};
+        use pallet_root_of_trust_rpc::{RootOfTrust, RootOfTrustApi};
+        use pallet_transaction_payment_rpc::{TransactionPayment, TransactionPaymentApi};
+        use sc_consensus_babe_rpc::{BabeApi, BabeRpcHandler};
+        use sc_finality_grandpa_rpc::{GrandpaApi, GrandpaRpcHandler};
         use std::sync::Arc;
-
-        type RpcExtension = jsonrpc_core::IoHandler<sc_rpc::Metadata>;
+        use substrate_frame_rpc_system::{FullSystem, SystemApi};
 
         let mut import_setup = None;
         let mut rpc_setup = None;
@@ -104,15 +108,59 @@ macro_rules! new_full_start {
                 Ok(import_queue)
             },
         )?
-        .with_rpc_extensions(|builder| -> std::result::Result<RpcExtension, _> {
-            let mut io = jsonrpc_core::IoHandler::default();
-            io.extend_with(pallet_root_of_trust_rpc::RootOfTrustApi::to_delegate(
-                pallet_root_of_trust_rpc::RootOfTrust::new(builder.client().clone()),
-            ));
-
+        .with_rpc_extensions_builder(|builder| {
+            let pool = builder.pool().clone();
+            let client = builder.client().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 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().clone();
             let shared_voter_state = sc_finality_grandpa::SharedVoterState::empty();
-            rpc_setup = Some((shared_voter_state));
-            Ok(io)
+
+            rpc_setup = Some((shared_voter_state.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 mut io = jsonrpc_core::IoHandler::default();
+                io.extend_with(SystemApi::<AccountId, Index>::to_delegate(FullSystem::new(
+                    client.clone(),
+                    pool.clone(),
+                )));
+                io.extend_with(TransactionPaymentApi::to_delegate(TransactionPayment::new(
+                    client.clone(),
+                )));
+                io.extend_with(BabeApi::to_delegate(BabeRpcHandler::new(
+                    client.clone(),
+                    shared_epoch_changes.clone(),
+                    keystore.clone(),
+                    babe_config.clone(),
+                    select_chain.clone(),
+                    deny_unsafe,
+                )));
+                io.extend_with(GrandpaApi::to_delegate(GrandpaRpcHandler::new(
+                    shared_authority_set.clone(),
+                    shared_voter_state.clone(),
+                )));
+                io.extend_with(RootOfTrustApi::to_delegate(RootOfTrust::new(
+                    client.clone(),
+                )));
+
+                io
+            })
         })?;
 
         (builder, import_setup, inherent_data_providers, rpc_setup)
@@ -162,7 +210,8 @@ macro_rules! new_full {
 		if let sc_service::config::Role::Authority { .. } = &role {
 			let proposer = sc_basic_authorship::ProposerFactory::new(
 				service.client(),
-				service.transaction_pool()
+                service.transaction_pool(),
+                service.prometheus_registry().as_ref(),
 			);
 
 			let client = service.client();
@@ -287,7 +336,9 @@ pub fn new_full(config: Configuration) -> Result<impl AbstractService, ServiceEr
 
 /// Builds a new service for a light client.
 pub fn new_light(config: Configuration) -> Result<impl AbstractService, ServiceError> {
-    type RpcExtension = jsonrpc_core::IoHandler<sc_rpc::Metadata>;
+    use nodle_chain_runtime::{AccountId, Index};
+    use pallet_root_of_trust_rpc::{RootOfTrust, RootOfTrustApi};
+    use substrate_frame_rpc_system::{LightSystem, SystemApi};
 
     let inherent_data_providers = InherentDataProviders::new();
 
@@ -355,11 +406,22 @@ pub fn new_light(config: Configuration) -> Result<impl AbstractService, ServiceE
             let provider = client as Arc<dyn StorageAndProofProvider<_, _>>;
             Ok(Arc::new(GrandpaFinalityProofProvider::new(backend, provider)) as _)
         })?
-        .with_rpc_extensions(|builder| -> std::result::Result<RpcExtension, _> {
+        .with_rpc_extensions(|builder| {
+            let fetcher = builder
+                .fetcher()
+                .ok_or_else(|| "Trying to start node RPC without active fetcher")?;
+            let remote_blockchain = builder
+                .remote_backend()
+                .ok_or_else(|| "Trying to start node RPC without active remote blockchain")?;
+            let client = builder.client();
+
             let mut io = jsonrpc_core::IoHandler::default();
-            io.extend_with(pallet_root_of_trust_rpc::RootOfTrustApi::to_delegate(
-                pallet_root_of_trust_rpc::RootOfTrust::new(builder.client().clone()),
+            io.extend_with(SystemApi::<AccountId, Index>::to_delegate(
+                LightSystem::new(client.clone(), remote_blockchain, fetcher, builder.pool()),
             ));
+            io.extend_with(RootOfTrustApi::to_delegate(RootOfTrust::new(
+                client.clone(),
+            )));
 
             Ok(io)
         })?
diff --git a/pallets/emergency-shutdown/Cargo.toml b/pallets/emergency-shutdown/Cargo.toml
index 23f6caa08ac..a8aaf774d02 100644
--- a/pallets/emergency-shutdown/Cargo.toml
+++ b/pallets/emergency-shutdown/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-emergency-shutdown"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 authors = ["Eliott Teissonniere <git.eliott@teissonniere.org>"]
 edition = "2018"
 
@@ -25,18 +25,18 @@ runtime-benchmarks = [
 ]
 
 [dependencies]
-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 }
+frame-benchmarking = { version = "2.0.0-rc2", default-features = false, optional = true }
+frame-support = { version = "2.0.0-rc2", default-features = false }
+frame-system = { version = "2.0.0-rc2", default-features = false }
 parity-scale-codec = { version = "1.2.0", default-features = false, features = ["derive"] }
 serde = { version = "1.0.110", optional = true, features = ["derive"] }
-sp-io = { 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-io = { version = "2.0.0-rc2", default-features = false }
+sp-runtime = { version = "2.0.0-rc2", default-features = false }
+sp-std = { version = "2.0.0-rc2", default-features = false }
 
 # Fix #105
-pallet-balances = { version = "2.0.0-alpha.8", default-features = false }
+pallet-balances = { version = "2.0.0-rc2", default-features = false }
 
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-alpha.8", default-features = false }
+sp-core = { version = "2.0.0-rc2", default-features = false }
diff --git a/pallets/emergency-shutdown/src/tests.rs b/pallets/emergency-shutdown/src/tests.rs
index 6cff17cec0d..66af837d0ee 100644
--- a/pallets/emergency-shutdown/src/tests.rs
+++ b/pallets/emergency-shutdown/src/tests.rs
@@ -71,6 +71,7 @@ impl frame_system::Trait for Test {
     type DbWeight = ();
     type BlockExecutionWeight = ();
     type ExtrinsicBaseWeight = ();
+    type MaximumExtrinsicWeight = MaximumBlockWeight;
 }
 
 ord_parameter_types! {
diff --git a/pallets/poa/Cargo.toml b/pallets/poa/Cargo.toml
index 4fb875013ba..44bcc77d903 100644
--- a/pallets/poa/Cargo.toml
+++ b/pallets/poa/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-poa"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 authors = ["Eliott Teissonniere <git.eliott@teissonniere.org>"]
 edition = "2018"
 
@@ -17,13 +17,13 @@ std = [
 ]
 
 [dependencies]
-frame-support = { version = "2.0.0-alpha.8", default-features = false }
+frame-support = { version = "2.0.0-rc2", default-features = false }
 parity-scale-codec = { version = "1.2.0", features = ["derive"], default-features = false }
-pallet-session = { version = "2.0.0-alpha.8", default-features = false, features = ["historical"] }
-sp-io = { 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 }
-frame-system = { version = "2.0.0-alpha.8", default-features = false }
+pallet-session = { version = "2.0.0-rc2", default-features = false, features = ["historical"] }
+sp-io = { version = "2.0.0-rc2", default-features = false }
+sp-runtime = { version = "2.0.0-rc2", default-features = false }
+sp-std = { version = "2.0.0-rc2", default-features = false }
+frame-system = { version = "2.0.0-rc2", default-features = false }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-alpha.8", default-features = false }
+sp-core = { version = "2.0.0-rc2", default-features = false }
diff --git a/pallets/poa/src/tests.rs b/pallets/poa/src/tests.rs
index 276ec99eb3d..74b09960dc4 100644
--- a/pallets/poa/src/tests.rs
+++ b/pallets/poa/src/tests.rs
@@ -64,6 +64,7 @@ impl system::Trait for Test {
     type DbWeight = ();
     type BlockExecutionWeight = ();
     type ExtrinsicBaseWeight = ();
+    type MaximumExtrinsicWeight = MaximumBlockWeight;
 }
 parameter_types! {
     pub const DisabledValidatorsThreshold: Perbill = Perbill::from_percent(33);
diff --git a/pallets/reserve/Cargo.toml b/pallets/reserve/Cargo.toml
index bdd03c83668..c971e5188cd 100644
--- a/pallets/reserve/Cargo.toml
+++ b/pallets/reserve/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-reserve"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 authors = ["Eliott Teissonniere <git.eliott@teissonniere.org>"]
 edition = "2018"
 
@@ -23,16 +23,16 @@ runtime-benchmarks = [
 ]
 
 [dependencies]
-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 }
-pallet-balances = { version = "2.0.0-alpha.8", default-features = false }
+frame-benchmarking = { version = "2.0.0-rc2", default-features = false, optional = true }
+frame-support = { version = "2.0.0-rc2", default-features = false }
+frame-system = { version = "2.0.0-rc2", default-features = false }
+pallet-balances = { version = "2.0.0-rc2", default-features = false }
 parity-scale-codec = { version = "1.2.0", default-features = false, features = ["derive"] }
 serde = { version = "1.0.110", optional = true, features = ["derive"] }
-sp-io = { 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-io = { version = "2.0.0-rc2", default-features = false }
+sp-runtime = { version = "2.0.0-rc2", default-features = false }
+sp-std = { version = "2.0.0-rc2", default-features = false }
 
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-alpha.8", default-features = false }
+sp-core = { version = "2.0.0-rc2", default-features = false }
diff --git a/pallets/reserve/src/tests.rs b/pallets/reserve/src/tests.rs
index 51743963319..2c4c32485b7 100644
--- a/pallets/reserve/src/tests.rs
+++ b/pallets/reserve/src/tests.rs
@@ -72,6 +72,7 @@ impl frame_system::Trait for Test {
     type DbWeight = ();
     type BlockExecutionWeight = ();
     type ExtrinsicBaseWeight = ();
+    type MaximumExtrinsicWeight = MaximumBlockWeight;
 }
 impl pallet_balances::Trait for Test {
     type Balance = u64;
diff --git a/pallets/root-of-trust/Cargo.toml b/pallets/root-of-trust/Cargo.toml
index 9eb040de434..05d81fd2569 100644
--- a/pallets/root-of-trust/Cargo.toml
+++ b/pallets/root-of-trust/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-root-of-trust"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 authors = ['Eliott Teissonniere <git.eliott@teissonniere.org>']
 edition = "2018"
 description = "This pallet implements a distributed Root Of Trust for Certification Authorities"
@@ -25,16 +25,16 @@ runtime-benchmarks = [
 ]
 
 [dependencies]
-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 }
-pallet-balances = { version = "2.0.0-alpha.8", default-features = false }
-pallet-tcr = { version = "2.0.0-alpha.8", default-features = false, path = "../tcr" }
+frame-benchmarking = { version = "2.0.0-rc2", default-features = false, optional = true }
+frame-support = { version = "2.0.0-rc2", default-features = false }
+frame-system = { version = "2.0.0-rc2", default-features = false }
+pallet-balances = { version = "2.0.0-rc2", default-features = false }
+pallet-tcr = { version = "2.0.0-rc2", default-features = false, path = "../tcr" }
 parity-scale-codec = { version = "1.2.0", default-features = false, features = ["derive"] }
 serde = { version = "1.0.110", optional = true, features = ["derive"] }
-sp-io = { 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-io = { version = "2.0.0-rc2", default-features = false }
+sp-runtime = { version = "2.0.0-rc2", default-features = false }
+sp-std = { version = "2.0.0-rc2", default-features = false }
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-alpha.8", default-features = false }
+sp-core = { version = "2.0.0-rc2", default-features = false }
diff --git a/pallets/root-of-trust/rpc/Cargo.toml b/pallets/root-of-trust/rpc/Cargo.toml
index a6a54fb18c2..25cfce24d0e 100644
--- a/pallets/root-of-trust/rpc/Cargo.toml
+++ b/pallets/root-of-trust/rpc/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-root-of-trust-rpc"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 authors = ["Eliott Teissonniere <git.eliott@teissonniere.org>"]
 edition = "2018"
 
@@ -8,8 +8,8 @@ edition = "2018"
 jsonrpc-core = "14.0.3"
 jsonrpc-core-client = "14.0.3"
 jsonrpc-derive = "14.0.3"
-pallet-root-of-trust-runtime-api = { version = "2.0.0-alpha.8", path = "./runtime-api" }
+pallet-root-of-trust-runtime-api = { version = "2.0.0-rc2", path = "./runtime-api" }
 parity-scale-codec = { version = "1.2.0", default_features = false }
-sp-api = { version = "2.0.0-alpha.8", default_features = false }
-sp-blockchain = { version = "2.0.0-alpha.8", default_features = false }
-sp-runtime = { version = "2.0.0-alpha.8", default_features = false }
+sp-api = { version = "2.0.0-rc2", default_features = false }
+sp-blockchain = { version = "2.0.0-rc2", default_features = false }
+sp-runtime = { version = "2.0.0-rc2", default_features = false }
diff --git a/pallets/root-of-trust/rpc/runtime-api/Cargo.toml b/pallets/root-of-trust/rpc/runtime-api/Cargo.toml
index f799404d422..9a4e4fbc197 100644
--- a/pallets/root-of-trust/rpc/runtime-api/Cargo.toml
+++ b/pallets/root-of-trust/rpc/runtime-api/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-root-of-trust-runtime-api"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 authors = ["Eliott Teissonniere <git.eliott@teissonniere.org>"]
 edition = "2018"
 
@@ -13,4 +13,4 @@ std = [
 
 [dependencies]
 parity-scale-codec = { version = "1.2.0", default_features = false }
-sp-api = { version = "2.0.0-alpha.8", default_features = false }
+sp-api = { version = "2.0.0-rc2", default_features = false }
diff --git a/pallets/root-of-trust/src/tests.rs b/pallets/root-of-trust/src/tests.rs
index a164a8fc476..f31d29bcc31 100644
--- a/pallets/root-of-trust/src/tests.rs
+++ b/pallets/root-of-trust/src/tests.rs
@@ -70,6 +70,7 @@ impl system::Trait for Test {
     type DbWeight = ();
     type BlockExecutionWeight = ();
     type ExtrinsicBaseWeight = ();
+    type MaximumExtrinsicWeight = MaximumBlockWeight;
 }
 parameter_types! {
     pub const DisabledValidatorsThreshold: Perbill = Perbill::from_percent(33);
diff --git a/pallets/tcr/Cargo.toml b/pallets/tcr/Cargo.toml
index 0bb5a7ffa36..0ba377e7e2f 100644
--- a/pallets/tcr/Cargo.toml
+++ b/pallets/tcr/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-tcr"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 authors = ['Eliott Teissonniere <git.eliott@teissonniere.org>']
 edition = "2018"
 description = "A Token Curated Registry module for Substrate"
@@ -24,16 +24,16 @@ runtime-benchmarks = [
 ]
 
 [dependencies]
-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 }
-pallet-balances = { version = "2.0.0-alpha.8", default-features = false }
+frame-benchmarking = { version = "2.0.0-rc2", default-features = false, optional = true }
+frame-support = { version = "2.0.0-rc2", default-features = false }
+frame-system = { version = "2.0.0-rc2", default-features = false }
+pallet-balances = { version = "2.0.0-rc2", default-features = false }
 parity-scale-codec = { version = "1.2.0", default-features = false, features = ["derive"] }
 serde = { version = "1.0.110", optional = true, features = ["derive"] }
-sp-io = { 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-io = { version = "2.0.0-rc2", default-features = false }
+sp-runtime = { version = "2.0.0-rc2", default-features = false }
+sp-std = { version = "2.0.0-rc2", default-features = false }
 
 
 [dev-dependencies]
-sp-core = { version = "2.0.0-alpha.8", default-features = false }
+sp-core = { version = "2.0.0-rc2", default-features = false }
diff --git a/pallets/tcr/src/tests.rs b/pallets/tcr/src/tests.rs
index b5401081221..27c0149ff16 100644
--- a/pallets/tcr/src/tests.rs
+++ b/pallets/tcr/src/tests.rs
@@ -71,6 +71,7 @@ impl system::Trait for Test {
     type DbWeight = ();
     type BlockExecutionWeight = ();
     type ExtrinsicBaseWeight = ();
+    type MaximumExtrinsicWeight = MaximumBlockWeight;
 }
 parameter_types! {
     pub const DisabledValidatorsThreshold: Perbill = Perbill::from_percent(33);
diff --git a/runtime/Cargo.toml b/runtime/Cargo.toml
index dfc91a9f504..45a05e3700c 100644
--- a/runtime/Cargo.toml
+++ b/runtime/Cargo.toml
@@ -2,7 +2,7 @@
 authors = ["Eliott Teissonniere <git.eliott@teissonniere.org>"]
 edition = "2018"
 name = "nodle-chain-runtime"
-version = "2.0.0-alpha.8"
+version = "2.0.0-rc2"
 
 [features]
 default = ["std"]
@@ -76,57 +76,57 @@ runtime-benchmarks = [
 ]
 
 [dependencies]
-frame-benchmarking = { version = "2.0.0-alpha.8", default-features = false, 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 = { version = "2.0.0-alpha.8", default-features = false }
-#frame-system-benchmarking = { version = "2.0.0-alpha.8", default-features = false, optional = true }
-frame-system-rpc-runtime-api = { version = "2.0.0-alpha.8", default-features = false }
-pallet-authority-discovery = { version = "2.0.0-alpha.8", default-features = false }
-pallet-authorship = { version = "2.0.0-alpha.8", default-features = false }
-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-emergency-shutdown = { version = "2.0.0-alpha.8", default-features = false, path = "../pallets/emergency-shutdown" }
-pallet-grandpa = { version = "2.0.0-alpha.8", default-features = false }
-pallet-identity = { version = "2.0.0-alpha.8", default-features = false }
-pallet-im-online = { version = "2.0.0-alpha.8", default-features = false }
-pallet-indices = { version = "2.0.0-alpha.8", default-features = false }
-pallet-mandate = { version = "2.0.3", default-features = false }
-pallet-membership = { version = "2.0.0-alpha.8", default-features = false }
-pallet-offences = { version = "2.0.0-alpha.8", default-features = false }
-#pallet-offences-benchmarking = { version = "2.0.0-alpha.8", default-features = false, optional = true }
-pallet-poa = { version = "2.0.0-alpha.8", default-features = false, path = "../pallets/poa" }
-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-reserve = { version = "2.0.0-alpha.8", default-features = false, path = "../pallets/reserve" }
-pallet-root-of-trust = { version = "2.0.0-alpha.8", default-features = false, path = "../pallets/root-of-trust" }
-pallet-root-of-trust-runtime-api = { version = "2.0.0-alpha.8", default-features = false, path = "../pallets/root-of-trust/rpc/runtime-api" }
-pallet-session = { version = "2.0.0-alpha.8", default-features = false, features = ["historical"] }
-#pallet-session-benchmarking = { version = "2.0.0-alpha.8", default-features = false, optional = true }
-pallet-tcr = { version = "2.0.0-alpha.8", default-features = false, path = "../pallets/tcr" }
-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-utility = { version = "2.0.0-alpha.8", default-features = false }
-pallet-vesting = { version = "2.0.0-alpha.8", default-features = false }
+frame-benchmarking = { version = "2.0.0-rc2", default-features = false, optional = true }
+frame-executive = { version = "2.0.0-rc2", default-features = false }
+frame-support = { version = "2.0.0-rc2", default-features = false }
+frame-system = { version = "2.0.0-rc2", default-features = false }
+#frame-system-benchmarking = { version = "2.0.0-rc2", default-features = false, optional = true }
+frame-system-rpc-runtime-api = { version = "2.0.0-rc2", default-features = false }
+pallet-authority-discovery = { version = "2.0.0-rc2", default-features = false }
+pallet-authorship = { version = "2.0.0-rc2", default-features = false }
+pallet-babe = { version = "2.0.0-rc2", default-features = false }
+pallet-balances = { version = "2.0.0-rc2", default-features = false }
+pallet-collective = { version = "2.0.0-rc2", default-features = false }
+pallet-emergency-shutdown = { version = "2.0.0-rc2", default-features = false, path = "../pallets/emergency-shutdown" }
+pallet-grandpa = { version = "2.0.0-rc2", default-features = false }
+pallet-identity = { version = "2.0.0-rc2", default-features = false }
+pallet-im-online = { version = "2.0.0-rc2", default-features = false }
+pallet-indices = { version = "2.0.0-rc2", default-features = false }
+pallet-mandate = { version = "2.0.4", default-features = false }
+pallet-membership = { version = "2.0.0-rc2", default-features = false }
+pallet-offences = { version = "2.0.0-rc2", default-features = false }
+#pallet-offences-benchmarking = { version = "2.0.0-rc2", default-features = false, optional = true }
+pallet-poa = { version = "2.0.0-rc2", default-features = false, path = "../pallets/poa" }
+pallet-randomness-collective-flip = { version = "2.0.0-rc2", default-features = false }
+pallet-recovery = { version = "2.0.0-rc2", default-features = false }
+pallet-reserve = { version = "2.0.0-rc2", default-features = false, path = "../pallets/reserve" }
+pallet-root-of-trust = { version = "2.0.0-rc2", default-features = false, path = "../pallets/root-of-trust" }
+pallet-root-of-trust-runtime-api = { version = "2.0.0-rc2", default-features = false, path = "../pallets/root-of-trust/rpc/runtime-api" }
+pallet-session = { version = "2.0.0-rc2", default-features = false, features = ["historical"] }
+#pallet-session-benchmarking = { version = "2.0.0-rc2", default-features = false, optional = true }
+pallet-tcr = { version = "2.0.0-rc2", default-features = false, path = "../pallets/tcr" }
+pallet-timestamp = { version = "2.0.0-rc2", default-features = false }
+pallet-transaction-payment = { version = "2.0.0-rc2", default-features = false }
+pallet-transaction-payment-rpc-runtime-api = { version = "2.0.0-rc2", default-features = false }
+pallet-utility = { version = "2.0.0-rc2", default-features = false }
+pallet-vesting = { version = "2.0.0-rc2", default-features = false }
 parity-scale-codec = { version = "1.2.0", default-features = false, features = ["derive"] }
 safe-mix = { version = "1.0.0", default-features = false }
 serde = { version = "1.0.110", optional = true, features = ["derive"] }
-sp-api = { version = "2.0.0-alpha.8", default-features = false }
-sp-application-crypto = { version = "2.0.0-alpha.8", default-features = false }
-sp-authority-discovery = { version = "2.0.0-alpha.8", default-features = false }
-sp-consensus-babe = { version = "0.8.0-alpha.8", default-features = false }
-sp-block-builder = { version = "2.0.0-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-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 }
+sp-api = { version = "2.0.0-rc2", default-features = false }
+sp-application-crypto = { version = "2.0.0-rc2", default-features = false }
+sp-authority-discovery = { version = "2.0.0-rc2", default-features = false }
+sp-consensus-babe = { version = "0.8.0-rc2", default-features = false }
+sp-block-builder = { version = "2.0.0-rc2", default-features = false }
+sp-core = { version = "2.0.0-rc2", default-features = false }
+sp-inherents = { version = "2.0.0-rc2", default-features = false }
+sp-io = { version = "2.0.0-rc2", default-features = false }
+sp-offchain = { version = "2.0.0-rc2", default-features = false }
+sp-runtime = { version = "2.0.0-rc2", default-features = false }
+sp-session = { version = "2.0.0-rc2", default-features = false }
+sp-std = { version = "2.0.0-rc2", default-features = false }
+sp-transaction-pool = { version = "2.0.0-rc2", default-features = false }
+sp-version = { version = "2.0.0-rc2", default-features = false }
 
 [build-dependencies]
 substrate-wasm-builder-runner = "1.0.6"
diff --git a/runtime/src/implementations.rs b/runtime/src/implementations.rs
index ff1d0df46a8..c54eed2b5c3 100644
--- a/runtime/src/implementations.rs
+++ b/runtime/src/implementations.rs
@@ -19,12 +19,12 @@
 
 //! Auxillary struct/enums for polkadot runtime.
 
-use crate::{Authorship, Balance, Balances, MaximumBlockWeight, NegativeImbalance, System};
-use core::num::NonZeroI128;
+use crate::{Authorship, Balances, MaximumBlockWeight, NegativeImbalance, System};
 use frame_support::traits::{Currency, Get, OnUnbalanced};
-use frame_support::weights::Weight;
-use sp_runtime::traits::{Convert, Saturating};
-use sp_runtime::{Fixed128, Perquintill};
+use sp_runtime::{
+    traits::{Convert, Saturating},
+    Fixed128, FixedPointNumber, Perquintill,
+};
 
 /// Logic for the author to get a portion of fees.
 pub struct Author;
@@ -34,18 +34,6 @@ impl OnUnbalanced<NegativeImbalance> for Author {
     }
 }
 
-/// Convert from weight to balance via a simple coefficient multiplication
-/// The associated type C encapsulates a constant in units of balance per weight
-pub struct LinearWeightToFee<C>(sp_std::marker::PhantomData<C>);
-
-impl<C: Get<Balance>> Convert<Weight, Balance> for LinearWeightToFee<C> {
-    fn convert(w: Weight) -> Balance {
-        // setting this to zero will disable the weight fee.
-        let coefficient = C::get();
-        Balance::from(w).saturating_mul(coefficient)
-    }
-}
-
 /// Update the given multiplier based on the following formula
 ///
 ///   diff = (previous_block_weight - target_weight)/max_weight
@@ -59,25 +47,21 @@ pub struct TargetedFeeAdjustment<T>(sp_std::marker::PhantomData<T>);
 impl<T: Get<Perquintill>> Convert<Fixed128, Fixed128> for TargetedFeeAdjustment<T> {
     fn convert(multiplier: Fixed128) -> Fixed128 {
         let max_weight = MaximumBlockWeight::get();
-        let block_weight = System::all_extrinsics_weight().total().min(max_weight);
+        let block_weight = System::block_weight().total().min(max_weight);
         let target_weight = (T::get() * max_weight) as u128;
         let block_weight = block_weight as u128;
 
         // determines if the first_term is positive
         let positive = block_weight >= target_weight;
         let diff_abs = block_weight.max(target_weight) - block_weight.min(target_weight);
-        // safe, diff_abs cannot exceed u64 and it can always be computed safely even with the lossy
-        // `Fixed128::from_rational`.
-        let diff = Fixed128::from_rational(
-            diff_abs as i128,
-            NonZeroI128::new(max_weight.max(1) as i128).unwrap(),
-        );
+        // safe, diff_abs cannot exceed u64.
+        let diff = Fixed128::saturating_from_rational(diff_abs, max_weight.max(1));
         let diff_squared = diff.saturating_mul(diff);
 
         // 0.00004 = 4/100_000 = 40_000/10^9
-        let v = Fixed128::from_rational(4, NonZeroI128::new(100_000).unwrap());
+        let v = Fixed128::saturating_from_rational(4, 100_000);
         // 0.00004^2 = 16/10^10 Taking the future /2 into account... 8/10^10
-        let v_squared_2 = Fixed128::from_rational(8, NonZeroI128::new(10_000_000_000).unwrap());
+        let v_squared_2 = Fixed128::saturating_from_rational(8, 10_000_000_000u64);
 
         let first_term = v.saturating_mul(diff);
         let second_term = v_squared_2.saturating_mul(diff_squared);
@@ -97,7 +81,7 @@ impl<T: Get<Perquintill>> Convert<Fixed128, Fixed128> for TargetedFeeAdjustment<
                 // multiplier. While at -1, it means that the network is so un-congested that all
                 // transactions have no weight fee. We stop here and only increase if the network
                 // became more busy.
-                .max(Fixed128::from_natural(-1))
+                .max(Fixed128::saturating_from_integer(-1))
         }
     }
 }
@@ -107,8 +91,7 @@ mod tests {
     use super::*;
     use crate::{constants::*, TargetBlockFullness, TransactionPayment};
     use crate::{AvailableBlockRatio, MaximumBlockWeight, Runtime};
-    use core::num::NonZeroI128;
-    use frame_support::weights::Weight;
+    use frame_support::weights::{Weight, WeightToFeePolynomial};
     use sp_runtime::assert_eq_error_rate;
 
     fn max() -> Weight {
@@ -133,7 +116,7 @@ mod tests {
         let s = block_weight;
 
         let fm = v * (s / m - ss / m) + v.powi(2) * (s / m - ss / m).powi(2) / 2.0;
-        let addition_fm = Fixed128::from_parts((fm * Fixed128::accuracy() as f64).round() as i128);
+        let addition_fm = Fixed128::from_inner((fm * Fixed128::accuracy() as f64).round() as i128);
         previous.saturating_add(addition_fm)
     }
 
@@ -153,7 +136,7 @@ mod tests {
 
     #[test]
     fn fee_multiplier_update_poc_works() {
-        let fm = Fixed128::from_rational(0, NonZeroI128::new(1).unwrap());
+        let fm = Fixed128::saturating_from_rational(0, 1);
         let test_set = vec![
             (0, fm.clone()),
             (100, fm.clone()),
@@ -167,7 +150,7 @@ mod tests {
                     fee_multiplier_update(w, fm),
                     TargetedFeeAdjustment::<TargetBlockFullness>::convert(fm),
                     // Error is only 1 in 10^18
-                    Fixed128::from_parts(1),
+                    Fixed128::from_inner(1),
                 );
             })
         })
@@ -183,7 +166,7 @@ mod tests {
             loop {
                 let next = TargetedFeeAdjustment::<TargetBlockFullness>::convert(fm);
                 fm = next;
-                if fm == Fixed128::from_natural(-1) {
+                if fm == Fixed128::saturating_from_integer(-1) {
                     break;
                 }
                 iterations += 1;
@@ -231,8 +214,8 @@ mod tests {
                 fm = next;
                 iterations += 1;
                 let fee =
-                    <Runtime as pallet_transaction_payment::Trait>::WeightToFee::convert(tx_weight);
-                let adjusted_fee = fm.saturated_multiply_accumulate(fee);
+                    <Runtime as pallet_transaction_payment::Trait>::WeightToFee::calc(&tx_weight);
+                let adjusted_fee = fm.saturating_mul_acc_int(fee);
                 println!(
                     "iteration {}, new fm = {:?}. Fee at this point is: {} units / {} millicents, \
 					{} cents, {} dollars",
@@ -325,8 +308,10 @@ mod tests {
 
             // ... stops going down at -1
             assert_eq!(
-                TargetedFeeAdjustment::<TargetBlockFullness>::convert(Fixed128::from_natural(-1)),
-                Fixed128::from_natural(-1)
+                TargetedFeeAdjustment::<TargetBlockFullness>::convert(
+                    Fixed128::saturating_from_integer(-1)
+                ),
+                Fixed128::saturating_from_integer(-1)
             );
         })
     }
@@ -335,7 +320,7 @@ mod tests {
     fn weight_to_fee_should_not_overflow_on_large_weights() {
         let kb = 1024 as Weight;
         let mb = kb * kb;
-        let max_fm = Fixed128::from_natural(i128::max_value());
+        let max_fm = Fixed128::saturating_from_integer(i128::max_value());
 
         // check that for all values it can compute, correctly.
         vec![
@@ -361,7 +346,7 @@ mod tests {
                 let next =
                     TargetedFeeAdjustment::<TargetBlockFullness>::convert(Fixed128::default());
                 let truth = fee_multiplier_update(i, Fixed128::default());
-                assert_eq_error_rate!(truth, next, Fixed128::from_parts(50_000_000));
+                assert_eq_error_rate!(truth, next, Fixed128::from_inner(50_000_000));
             });
         });
 
diff --git a/runtime/src/lib.rs b/runtime/src/lib.rs
index 4dba7857f52..280519b6c85 100644
--- a/runtime/src/lib.rs
+++ b/runtime/src/lib.rs
@@ -39,7 +39,7 @@ use sp_runtime::{
     create_runtime_str, generic, impl_opaque_keys,
     traits::{
         BlakeTwo256, Block as BlockT, ConvertInto, IdentifyAccount, NumberFor, OpaqueKeys,
-        SaturatedConversion, StaticLookup, Verify,
+        SaturatedConversion, Saturating, StaticLookup, Verify,
     },
     transaction_validity::{TransactionPriority, TransactionSource, TransactionValidity},
     ApplyExtrinsicResult, MultiSignature,
@@ -55,7 +55,7 @@ pub use frame_support::{
     traits::{Currency, Imbalance, KeyOwnerProofSystem, OnUnbalanced, Randomness, SplitTwoWays},
     weights::{
         constants::{BlockExecutionWeight, ExtrinsicBaseWeight, RocksDbWeight, WEIGHT_PER_SECOND},
-        Weight,
+        IdentityFee, Weight,
     },
     StorageValue,
 };
@@ -68,7 +68,7 @@ pub use sp_runtime::{Perbill, Permill, Perquintill};
 pub mod constants;
 mod implementations;
 
-use implementations::{Author, LinearWeightToFee, TargetedFeeAdjustment};
+use implementations::{Author, TargetedFeeAdjustment};
 
 /// An index to a block.
 pub type BlockNumber = u32;
@@ -169,7 +169,7 @@ pub const VERSION: RuntimeVersion = RuntimeVersion {
     /// Version of the runtime specification. A full-node will not attempt to use its native
     /// runtime in substitute for the on-chain Wasm runtime unless all of `spec_name`,
     /// `spec_version` and `authoring_version` are the same between Wasm and native.
-    spec_version: 20,
+    spec_version: 21,
 
     /// Version of the implementation of the specification. Nodes are free to ignore this; it
     /// serves only as an indication that the code is different; as long as the other two versions
@@ -179,8 +179,10 @@ pub const VERSION: RuntimeVersion = RuntimeVersion {
     /// would result in only the `impl_version` changing.
     impl_version: 0,
 
+    /// Used for hardware wallets. This typically happens when `SignedExtra` changes.
+    transaction_version: 2,
+
     apis: RUNTIME_API_VERSIONS,
-    transaction_version: 1,
 };
 
 /// The version infromation used to identify this runtime when compiled natively.
@@ -197,6 +199,8 @@ parameter_types! {
     pub const MaximumBlockWeight: Weight = 2 * WEIGHT_PER_SECOND;
     pub const AvailableBlockRatio: Perbill = Perbill::from_percent(75);
     pub const MaximumBlockLength: u32 = 5 * 1024 * 1024;
+    pub const MaximumExtrinsicWeight: Weight = AvailableBlockRatio::get()
+        .saturating_sub(Perbill::from_percent(10)) * MaximumBlockWeight::get();
     pub const Version: RuntimeVersion = VERSION;
 }
 
@@ -223,6 +227,7 @@ impl frame_system::Trait for Runtime {
     type DbWeight = RocksDbWeight;
     type BlockExecutionWeight = BlockExecutionWeight;
     type ExtrinsicBaseWeight = ExtrinsicBaseWeight;
+    type MaximumExtrinsicWeight = MaximumExtrinsicWeight;
 }
 
 parameter_types! {
@@ -341,12 +346,17 @@ impl pallet_im_online::Trait for Runtime {
     type UnsignedPriority = ImOnlineUnsignedPriority;
 }
 
+parameter_types! {
+    pub const OffencesWeightSoftLimit: Weight = Perbill::from_percent(60) * MaximumBlockWeight::get();
+}
+
 impl pallet_offences::Trait for Runtime {
     type Event = Event;
     type IdentificationTuple = pallet_session::historical::IdentificationTuple<Self>;
     // TODO: as of now, we don't execute any slashing, however offences are logged
     // so that we could decide to remove validators later
     type OnOffenceHandler = ();
+    type WeightSoftLimit = OffencesWeightSoftLimit;
 }
 
 parameter_types! {
@@ -397,16 +407,13 @@ parameter_types! {
     // For a sane configuration, this should always be less than `AvailableBlockRatio`.
     // Fees raises after a fullness of 25%
     pub const TargetBlockFullness: Perquintill = constants::TARGET_BLOCK_FULLNESS;
-    // In the Substrate node, a weight of 10_000_000 (smallest non-zero weight)
-    // is mapped to 10_000_000 units of fees, hence:
-    pub const WeightFeeCoefficient: Balance = 1;
 }
 
 impl pallet_transaction_payment::Trait for Runtime {
     type Currency = Balances;
     type OnTransactionPayment = DealWithFees;
     type TransactionByteFee = TransactionByteFee;
-    type WeightToFee = LinearWeightToFee<WeightFeeCoefficient>;
+    type WeightToFee = IdentityFee<Balance>;
     type FeeMultiplierUpdate = TargetedFeeAdjustment<TargetBlockFullness>;
 }
 
@@ -634,6 +641,7 @@ impl pallet_utility::Trait for Runtime {
     type MultisigDepositBase = MultisigDepositBase;
     type MultisigDepositFactor = MultisigDepositFactor;
     type MaxSignatories = MaxSignatories;
+    type IsCallable = ();
 }
 
 parameter_types! {