diff --git a/Cargo.lock b/Cargo.lock
index c9f9d68f220..6504f768c2f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -25,6 +25,61 @@ version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5d2e7343e7fc9de883d1b0341e0b13970f764c14101234857d2ddafa1cb1cac2"
 
+[[package]]
+name = "aead"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4cf01b9b56e767bb57b94ebf91a58b338002963785cdd7013e21c0d4679471e4"
+dependencies = [
+ "generic-array",
+]
+
+[[package]]
+name = "aes"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "54eb1d8fe354e5fc611daf4f2ea97dd45a765f4f1e4512306ec183ae2e8f20c9"
+dependencies = [
+ "aes-soft",
+ "aesni",
+ "block-cipher-trait",
+]
+
+[[package]]
+name = "aes-gcm"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "834a6bda386024dbb7c8fc51322856c10ffe69559f972261c868485f5759c638"
+dependencies = [
+ "aead",
+ "aes",
+ "block-cipher-trait",
+ "ghash",
+ "subtle 2.2.3",
+ "zeroize",
+]
+
+[[package]]
+name = "aes-soft"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cfd7e7ae3f9a1fb5c03b389fc6bb9a51400d0c13053f0dca698c832bfd893a0d"
+dependencies = [
+ "block-cipher-trait",
+ "byteorder",
+ "opaque-debug",
+]
+
+[[package]]
+name = "aesni"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2f70a6b5f971e473091ab7cfb5ffac6cde81666c4556751d8d5620ead8abf100"
+dependencies = [
+ "block-cipher-trait",
+ "opaque-debug",
+]
+
 [[package]]
 name = "ahash"
 version = "0.2.18"
@@ -405,6 +460,15 @@ dependencies = [
  "generic-array",
 ]
 
+[[package]]
+name = "block-cipher-trait"
+version = "0.6.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1c924d49bd09e7c06003acda26cd9742e796e34282ec6c1189404dee0c1f4774"
+dependencies = [
+ "generic-array",
+]
+
 [[package]]
 name = "block-padding"
 version = "0.1.5"
@@ -515,12 +579,26 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
 
 [[package]]
-name = "chacha20-poly1305-aead"
-version = "0.1.2"
+name = "chacha20"
+version = "0.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "77d2058ba29594f69c75e8a9018e0485e3914ca5084e3613cd64529042f5423b"
+checksum = "f6a7ae4c498f8447d86baef0fa0831909333f558866fabcb21600625ac5a31c7"
 dependencies = [
- "constant_time_eq",
+ "stream-cipher",
+ "zeroize",
+]
+
+[[package]]
+name = "chacha20poly1305"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "48901293601228db2131606f741db33561f7576b5d19c99cd66222380a7dc863"
+dependencies = [
+ "aead",
+ "chacha20",
+ "poly1305",
+ "stream-cipher",
+ "zeroize",
 ]
 
 [[package]]
@@ -1012,6 +1090,7 @@ dependencies = [
  "sc-consensus",
  "sc-executor",
  "sc-finality-grandpa",
+ "sc-informant",
  "sc-network",
  "sc-service",
  "sc-transaction-pool",
@@ -1455,16 +1534,16 @@ checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
 
 [[package]]
 name = "fork-tree"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "parity-scale-codec",
 ]
 
 [[package]]
 name = "frame-benchmarking"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -1480,8 +1559,8 @@ dependencies = [
 
 [[package]]
 name = "frame-benchmarking-cli"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-benchmarking",
  "parity-scale-codec",
@@ -1498,8 +1577,8 @@ dependencies = [
 
 [[package]]
 name = "frame-executive"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -1513,8 +1592,8 @@ dependencies = [
 
 [[package]]
 name = "frame-metadata"
-version = "11.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "11.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "parity-scale-codec",
  "serde",
@@ -1524,8 +1603,8 @@ dependencies = [
 
 [[package]]
 name = "frame-support"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "bitmask",
  "frame-metadata",
@@ -1549,8 +1628,8 @@ dependencies = [
 
 [[package]]
 name = "frame-support-procedural"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-support-procedural-tools",
  "proc-macro2 1.0.18",
@@ -1560,8 +1639,8 @@ dependencies = [
 
 [[package]]
 name = "frame-support-procedural-tools"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-support-procedural-tools-derive",
  "proc-macro-crate",
@@ -1572,8 +1651,8 @@ dependencies = [
 
 [[package]]
 name = "frame-support-procedural-tools-derive"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "proc-macro2 1.0.18",
  "quote 1.0.7",
@@ -1582,8 +1661,8 @@ dependencies = [
 
 [[package]]
 name = "frame-system"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-support",
  "impl-trait-for-tuples",
@@ -1598,8 +1677,8 @@ dependencies = [
 
 [[package]]
 name = "frame-system-rpc-runtime-api"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "parity-scale-codec",
  "sp-api",
@@ -1819,6 +1898,18 @@ dependencies = [
  "pin-project",
 ]
 
+[[package]]
+name = "futures_codec"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ce54d63f8b0c75023ed920d46fd71d0cbbb830b0ee012726b5b4f506fb6dea5b"
+dependencies = [
+ "bytes 0.5.4",
+ "futures 0.3.5",
+ "memchr",
+ "pin-project",
+]
+
 [[package]]
 name = "gcc"
 version = "0.3.55"
@@ -1867,6 +1958,15 @@ dependencies = [
  "wasi",
 ]
 
+[[package]]
+name = "ghash"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9f0930ed19a7184089ea46d2fedead2f6dc2b674c5db4276b7da336c7cd83252"
+dependencies = [
+ "polyval",
+]
+
 [[package]]
 name = "gimli"
 version = "0.20.0"
@@ -2397,6 +2497,20 @@ dependencies = [
  "unicase",
 ]
 
+[[package]]
+name = "jsonrpc-ipc-server"
+version = "14.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dedccd693325d833963b549e959137f30a7a0ea650cde92feda81dc0c1393cb5"
+dependencies = [
+ "jsonrpc-core",
+ "jsonrpc-server-utils",
+ "log 0.4.8",
+ "parity-tokio-ipc",
+ "parking_lot 0.10.2",
+ "tokio-service",
+]
+
 [[package]]
 name = "jsonrpc-pubsub"
 version = "14.2.0"
@@ -2465,7 +2579,7 @@ dependencies = [
  "serde",
  "serde_json",
  "smallvec 1.4.0",
- "soketto",
+ "soketto 0.3.2",
  "thiserror",
  "tokio 0.2.21",
  "unicase",
@@ -2503,8 +2617,8 @@ dependencies = [
 
 [[package]]
 name = "kusama-runtime"
-version = "0.8.8"
-source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#91f3e68f5750dff7bddedeb846ff55447e8cf8f8"
+version = "0.8.13"
+source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#81067b709e578da8ed835ec308bfd3555ecb3d57"
 dependencies = [
  "bitvec",
  "frame-executive",
@@ -2675,9 +2789,9 @@ checksum = "c7d73b3f436185384286bd8098d17ec07c9a7d2388a6599f824d8502b529702a"
 
 [[package]]
 name = "libp2p"
-version = "0.19.1"
+version = "0.20.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "057eba5432d3e740e313c6e13c9153d0cb76b4f71bfc2e5242ae5bdb7d41af67"
+checksum = "db81113df355dea9dddfcb01cd867555298dca29d915f25d1b1a0aad2e29338b"
 dependencies = [
  "bytes 0.5.4",
  "futures 0.3.5",
@@ -2697,7 +2811,7 @@ dependencies = [
  "libp2p-websocket",
  "libp2p-yamux",
  "multihash",
- "parity-multiaddr 0.9.0",
+ "parity-multiaddr 0.9.1",
  "parking_lot 0.10.2",
  "pin-project",
  "smallvec 1.4.0",
@@ -2706,9 +2820,9 @@ dependencies = [
 
 [[package]]
 name = "libp2p-core"
-version = "0.19.1"
+version = "0.19.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4f5e30dcd8cb13a02ad534e214da234eca1595a76b5788b645dfa5c734d2124b"
+checksum = "3a0387b930c3d4c2533dc4893c1e0394185ddcc019846121b1b27491e45a2c08"
 dependencies = [
  "asn1_der",
  "bs58",
@@ -2722,7 +2836,7 @@ dependencies = [
  "log 0.4.8",
  "multihash",
  "multistream-select",
- "parity-multiaddr 0.9.0",
+ "parity-multiaddr 0.9.1",
  "parking_lot 0.10.2",
  "pin-project",
  "prost",
@@ -2733,7 +2847,7 @@ dependencies = [
  "sha2",
  "smallvec 1.4.0",
  "thiserror",
- "unsigned-varint",
+ "unsigned-varint 0.4.0",
  "void",
  "zeroize",
 ]
@@ -2761,9 +2875,9 @@ dependencies = [
 
 [[package]]
 name = "libp2p-identify"
-version = "0.19.1"
+version = "0.19.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6438ed8ca240c7635c9caa3be6c5258bc0058553ae97ba81737f04e5d33804f5"
+checksum = "62f76075b170d908bae616f550ade410d9d27c013fa69042551dbfc757c7c094"
 dependencies = [
  "futures 0.3.5",
  "libp2p-core",
@@ -2777,16 +2891,16 @@ dependencies = [
 
 [[package]]
 name = "libp2p-kad"
-version = "0.19.0"
+version = "0.20.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "41d6c1d5100973527ae70d82687465b17049c1b717a7964de38b8e65000878ff"
+checksum = "f7c819a5425b2eb3416d67e9c868c5c1e922b6658655e06b9eeafaa41304b876"
 dependencies = [
  "arrayvec 0.5.1",
  "bytes 0.5.4",
  "either",
  "fnv",
  "futures 0.3.5",
- "futures_codec",
+ "futures_codec 0.4.1",
  "libp2p-core",
  "libp2p-swarm",
  "log 0.4.8",
@@ -2797,16 +2911,16 @@ dependencies = [
  "sha2",
  "smallvec 1.4.0",
  "uint",
- "unsigned-varint",
+ "unsigned-varint 0.4.0",
  "void",
  "wasm-timer",
 ]
 
 [[package]]
 name = "libp2p-mdns"
-version = "0.19.1"
+version = "0.19.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "51b00163d13f705aae67c427bea0575f8aaf63da6524f9bd4a5a093b8bda0b38"
+checksum = "7f55b2d4b80986e5bf158270ab23268ec0e7f644ece5436fbaabc5155472f357"
 dependencies = [
  "async-std",
  "data-encoding",
@@ -2826,25 +2940,25 @@ dependencies = [
 
 [[package]]
 name = "libp2p-mplex"
-version = "0.19.1"
+version = "0.19.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "34ce63313ad4bce2d76e54c292a1293ea47a0ebbe16708f1513fa62184992f53"
+checksum = "be7d913a4cd57de2013257ec73f07d77bfce390b370023e2d59083e5ca079864"
 dependencies = [
  "bytes 0.5.4",
  "fnv",
  "futures 0.3.5",
- "futures_codec",
+ "futures_codec 0.4.1",
  "libp2p-core",
  "log 0.4.8",
  "parking_lot 0.10.2",
- "unsigned-varint",
+ "unsigned-varint 0.4.0",
 ]
 
 [[package]]
 name = "libp2p-noise"
-version = "0.19.0"
+version = "0.19.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "84fd504e27b0eadd451e06b67694ef714bd8374044e7db339bb0cdb83755ddf4"
+checksum = "a03db664653369f46ee03fcec483a378c20195089bb43a26cb9fb0058009ac88"
 dependencies = [
  "curve25519-dalek",
  "futures 0.3.5",
@@ -2863,9 +2977,9 @@ dependencies = [
 
 [[package]]
 name = "libp2p-ping"
-version = "0.19.1"
+version = "0.19.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c189cf1dfe4b3f01e2c0fe5e97a6f5df8aeb6f3569e26981015eb7c08015ce5f"
+checksum = "b8dedd34e35a9728d52d59ef36a218e411359a353f9011b2574b86ee790978f6"
 dependencies = [
  "futures 0.3.5",
  "libp2p-core",
@@ -2878,9 +2992,9 @@ dependencies = [
 
 [[package]]
 name = "libp2p-swarm"
-version = "0.19.0"
+version = "0.19.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b4a8101a0e0d5f04562137a476bf5f5423cd5bdab2f7e43a75909668e63cb102"
+checksum = "ce53ff4d127cf8b39adf84dbd381ca32d49bd85788cee08e6669da2495993930"
 dependencies = [
  "futures 0.3.5",
  "libp2p-core",
@@ -2893,9 +3007,9 @@ dependencies = [
 
 [[package]]
 name = "libp2p-tcp"
-version = "0.19.1"
+version = "0.19.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "309f95fce9bec755eff5406f8b822fd3969990830c2b54f752e1fc181d5ace3e"
+checksum = "9481500c5774c62e8c413e9535b3f33a0e3dbacf2da63b8d3056c686a9df4146"
 dependencies = [
  "async-std",
  "futures 0.3.5",
@@ -2923,12 +3037,11 @@ dependencies = [
 
 [[package]]
 name = "libp2p-websocket"
-version = "0.19.0"
+version = "0.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "085fbe4c05c4116c2164ab4d5a521eb6e00516c444f61b3ee9f68c7b1e53580b"
+checksum = "7e4440551bf6519e0a684cd859ea809aec6d798f686e0d6ed03a28c3e76849b8"
 dependencies = [
  "async-tls 0.7.0",
- "bytes 0.5.4",
  "either",
  "futures 0.3.5",
  "libp2p-core",
@@ -2936,7 +3049,7 @@ dependencies = [
  "quicksink",
  "rustls 0.17.0",
  "rw-stream-sink",
- "soketto",
+ "soketto 0.4.1",
  "url 2.1.1",
  "webpki",
  "webpki-roots 0.18.0",
@@ -2944,9 +3057,9 @@ dependencies = [
 
 [[package]]
 name = "libp2p-yamux"
-version = "0.19.0"
+version = "0.19.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0b305d3a8981e68f11c0e17f2d11d5c52fae95e0d7c283f9e462b5b2dab413b2"
+checksum = "8da33e7b5f49c75c6a8afb0b8d1e229f5fa48be9f39bd14cdbc21459a02ac6fc"
 dependencies = [
  "futures 0.3.5",
  "libp2p-core",
@@ -3147,9 +3260,9 @@ dependencies = [
 
 [[package]]
 name = "memory-db"
-version = "0.20.1"
+version = "0.21.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "be512cb2ccb4ecbdca937fdd4a62ea5f09f8e7195466a85e4632b3d5bcce82e6"
+checksum = "fb2999ff7a65d5a1d72172f6d51fa2ea03024b51aee709ba5ff81c3c629a2410"
 dependencies = [
  "ahash 0.2.18",
  "hash-db",
@@ -3206,7 +3319,7 @@ dependencies = [
  "kernel32-sys",
  "libc",
  "log 0.4.8",
- "miow",
+ "miow 0.2.1",
  "net2",
  "slab",
  "winapi 0.2.8",
@@ -3224,6 +3337,18 @@ dependencies = [
  "slab",
 ]
 
+[[package]]
+name = "mio-named-pipes"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0840c1c50fd55e521b247f949c241c9997709f23bd7f023b9762cd561e935656"
+dependencies = [
+ "log 0.4.8",
+ "mio",
+ "miow 0.3.5",
+ "winapi 0.3.8",
+]
+
 [[package]]
 name = "mio-uds"
 version = "0.6.8"
@@ -3247,6 +3372,16 @@ dependencies = [
  "ws2_32-sys",
 ]
 
+[[package]]
+name = "miow"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "07b88fb9795d4d36d62a012dfbf49a8f5cf12751f36d31a9dbe66d528e58979e"
+dependencies = [
+ "socket2",
+ "winapi 0.3.8",
+]
+
 [[package]]
 name = "more-asserts"
 version = "0.2.1"
@@ -3265,7 +3400,7 @@ dependencies = [
  "sha-1",
  "sha2",
  "sha3",
- "unsigned-varint",
+ "unsigned-varint 0.3.3",
 ]
 
 [[package]]
@@ -3276,16 +3411,16 @@ checksum = "d8883adfde9756c1d30b0f519c9b8c502a94b41ac62f696453c37c7fc0a958ce"
 
 [[package]]
 name = "multistream-select"
-version = "0.8.1"
+version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "991c33683908c588b8f2cf66c221d8f390818c1bdcd13fce55208408e027a796"
+checksum = "c9157e87afbc2ef0d84cc0345423d715f445edde00141c93721c162de35a05e5"
 dependencies = [
  "bytes 0.5.4",
  "futures 0.3.5",
  "log 0.4.8",
  "pin-project",
  "smallvec 1.4.0",
- "unsigned-varint",
+ "unsigned-varint 0.4.0",
 ]
 
 [[package]]
@@ -3516,8 +3651,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-authority-discovery"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3532,8 +3667,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-authorship"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3547,8 +3682,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-babe"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3569,8 +3704,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-balances"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -3583,8 +3718,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-collective"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3598,8 +3733,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-democracy"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -3613,8 +3748,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-elections-phragmen"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3627,8 +3762,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-finality-tracker"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3643,8 +3778,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-grandpa"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3663,8 +3798,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-identity"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "enumflags2",
  "frame-benchmarking",
@@ -3679,8 +3814,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-im-online"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3698,8 +3833,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-indices"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3714,8 +3849,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-membership"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3728,8 +3863,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-multisig"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3743,8 +3878,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-nicks"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3757,8 +3892,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-offences"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3772,8 +3907,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-proxy"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3787,8 +3922,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-randomness-collective-flip"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3800,8 +3935,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-recovery"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "enumflags2",
  "frame-support",
@@ -3815,8 +3950,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-scheduler"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -3830,8 +3965,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-session"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3839,6 +3974,8 @@ dependencies = [
  "pallet-timestamp",
  "parity-scale-codec",
  "serde",
+ "sp-core",
+ "sp-io",
  "sp-runtime",
  "sp-session",
  "sp-staking",
@@ -3848,8 +3985,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-society"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3862,8 +3999,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-staking"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3882,8 +4019,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-staking-reward-curve"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "proc-macro-crate",
  "proc-macro2 1.0.18",
@@ -3893,8 +4030,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-sudo"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3907,8 +4044,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-timestamp"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
@@ -3924,13 +4061,14 @@ dependencies = [
 
 [[package]]
 name = "pallet-transaction-payment"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-support",
  "frame-system",
  "pallet-transaction-payment-rpc-runtime-api",
  "parity-scale-codec",
+ "serde",
  "smallvec 1.4.0",
  "sp-runtime",
  "sp-std",
@@ -3938,8 +4076,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-transaction-payment-rpc"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "jsonrpc-core",
  "jsonrpc-core-client",
@@ -3956,8 +4094,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-transaction-payment-rpc-runtime-api"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-support",
  "parity-scale-codec",
@@ -3969,8 +4107,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-treasury"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3983,8 +4121,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-utility"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-support",
  "frame-system",
@@ -3998,8 +4136,8 @@ dependencies = [
 
 [[package]]
 name = "pallet-vesting"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "enumflags2",
  "frame-support",
@@ -4038,15 +4176,15 @@ dependencies = [
  "percent-encoding 2.1.0",
  "serde",
  "static_assertions",
- "unsigned-varint",
+ "unsigned-varint 0.3.3",
  "url 2.1.1",
 ]
 
 [[package]]
 name = "parity-multiaddr"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "12ca96399f4a01aa89c59220c4f52ac371940eb4e53e3ce990da796f364bdf69"
+checksum = "cc20af3143a62c16e7c9e92ea5c6ae49f7d271d97d4d8fe73afc28f0514a3d0f"
 dependencies = [
  "arrayref",
  "bs58",
@@ -4056,7 +4194,7 @@ dependencies = [
  "percent-encoding 2.1.0",
  "serde",
  "static_assertions",
- "unsigned-varint",
+ "unsigned-varint 0.4.0",
  "url 2.1.1",
 ]
 
@@ -4072,14 +4210,14 @@ dependencies = [
  "sha-1",
  "sha2",
  "sha3",
- "unsigned-varint",
+ "unsigned-varint 0.3.3",
 ]
 
 [[package]]
 name = "parity-scale-codec"
-version = "1.3.0"
+version = "1.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "329c8f7f4244ddb5c37c103641027a76c530e65e8e4b8240b29f81ea40508b17"
+checksum = "a74f02beb35d47e0706155c9eac554b50c671e0d868fe8296bcdf44a9a4847bf"
 dependencies = [
  "arrayvec 0.5.1",
  "bitvec",
@@ -4106,6 +4244,25 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "aa9777aa91b8ad9dd5aaa04a9b6bcb02c7f1deb952fca5a66034d5e63afc5c6f"
 
+[[package]]
+name = "parity-tokio-ipc"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e57fea504fea33f9fbb5f49f378359030e7e026a6ab849bb9e8f0787376f1bf"
+dependencies = [
+ "bytes 0.4.12",
+ "futures 0.1.29",
+ "libc",
+ "log 0.4.8",
+ "mio-named-pipes",
+ "miow 0.3.5",
+ "rand 0.7.3",
+ "tokio 0.1.22",
+ "tokio-named-pipes",
+ "tokio-uds",
+ "winapi 0.3.8",
+]
+
 [[package]]
 name = "parity-util-mem"
 version = "0.3.0"
@@ -4340,8 +4497,8 @@ checksum = "feb3b2b1033b8a60b4da6ee470325f887758c95d5320f52f9ce0df055a55940e"
 
 [[package]]
 name = "polkadot-availability-store"
-version = "0.8.8"
-source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#91f3e68f5750dff7bddedeb846ff55447e8cf8f8"
+version = "0.8.13"
+source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#81067b709e578da8ed835ec308bfd3555ecb3d57"
 dependencies = [
  "derive_more 0.99.7",
  "exit-future 0.2.0",
@@ -4367,8 +4524,8 @@ dependencies = [
 
 [[package]]
 name = "polkadot-cli"
-version = "0.8.8"
-source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#91f3e68f5750dff7bddedeb846ff55447e8cf8f8"
+version = "0.8.13"
+source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#81067b709e578da8ed835ec308bfd3555ecb3d57"
 dependencies = [
  "frame-benchmarking-cli",
  "futures 0.3.5",
@@ -4389,8 +4546,8 @@ dependencies = [
 
 [[package]]
 name = "polkadot-collator"
-version = "0.8.8"
-source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#91f3e68f5750dff7bddedeb846ff55447e8cf8f8"
+version = "0.8.13"
+source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#81067b709e578da8ed835ec308bfd3555ecb3d57"
 dependencies = [
  "futures 0.3.5",
  "futures-timer 2.0.2",
@@ -4417,7 +4574,7 @@ dependencies = [
 [[package]]
 name = "polkadot-core-primitives"
 version = "0.7.30"
-source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#91f3e68f5750dff7bddedeb846ff55447e8cf8f8"
+source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#81067b709e578da8ed835ec308bfd3555ecb3d57"
 dependencies = [
  "parity-scale-codec",
  "sp-core",
@@ -4427,8 +4584,8 @@ dependencies = [
 
 [[package]]
 name = "polkadot-erasure-coding"
-version = "0.8.8"
-source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#91f3e68f5750dff7bddedeb846ff55447e8cf8f8"
+version = "0.8.13"
+source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#81067b709e578da8ed835ec308bfd3555ecb3d57"
 dependencies = [
  "derive_more 0.15.0",
  "parity-scale-codec",
@@ -4440,8 +4597,8 @@ dependencies = [
 
 [[package]]
 name = "polkadot-network"
-version = "0.8.8"
-source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#91f3e68f5750dff7bddedeb846ff55447e8cf8f8"
+version = "0.8.13"
+source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#81067b709e578da8ed835ec308bfd3555ecb3d57"
 dependencies = [
  "arrayvec 0.4.12",
  "bytes 0.5.4",
@@ -4467,8 +4624,8 @@ dependencies = [
 
 [[package]]
 name = "polkadot-parachain"
-version = "0.8.8"
-source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#91f3e68f5750dff7bddedeb846ff55447e8cf8f8"
+version = "0.8.13"
+source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#81067b709e578da8ed835ec308bfd3555ecb3d57"
 dependencies = [
  "derive_more 0.99.7",
  "log 0.4.8",
@@ -4487,8 +4644,8 @@ dependencies = [
 
 [[package]]
 name = "polkadot-primitives"
-version = "0.8.8"
-source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#91f3e68f5750dff7bddedeb846ff55447e8cf8f8"
+version = "0.8.13"
+source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#81067b709e578da8ed835ec308bfd3555ecb3d57"
 dependencies = [
  "bitvec",
  "frame-system",
@@ -4509,8 +4666,8 @@ dependencies = [
 
 [[package]]
 name = "polkadot-rpc"
-version = "0.8.8"
-source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#91f3e68f5750dff7bddedeb846ff55447e8cf8f8"
+version = "0.8.13"
+source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#81067b709e578da8ed835ec308bfd3555ecb3d57"
 dependencies = [
  "jsonrpc-core",
  "pallet-transaction-payment-rpc",
@@ -4525,6 +4682,7 @@ dependencies = [
  "sc-keystore",
  "sc-rpc",
  "sp-api",
+ "sp-block-builder",
  "sp-blockchain",
  "sp-consensus",
  "sp-consensus-babe",
@@ -4535,8 +4693,8 @@ dependencies = [
 
 [[package]]
 name = "polkadot-runtime"
-version = "0.8.8"
-source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#91f3e68f5750dff7bddedeb846ff55447e8cf8f8"
+version = "0.8.13"
+source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#81067b709e578da8ed835ec308bfd3555ecb3d57"
 dependencies = [
  "bitvec",
  "frame-executive",
@@ -4599,8 +4757,8 @@ dependencies = [
 
 [[package]]
 name = "polkadot-runtime-common"
-version = "0.8.8"
-source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#91f3e68f5750dff7bddedeb846ff55447e8cf8f8"
+version = "0.8.13"
+source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#81067b709e578da8ed835ec308bfd3555ecb3d57"
 dependencies = [
  "bitvec",
  "frame-support",
@@ -4612,6 +4770,7 @@ dependencies = [
  "pallet-session",
  "pallet-staking",
  "pallet-timestamp",
+ "pallet-transaction-payment",
  "pallet-vesting",
  "parity-scale-codec",
  "polkadot-primitives",
@@ -4631,8 +4790,8 @@ dependencies = [
 
 [[package]]
 name = "polkadot-service"
-version = "0.8.8"
-source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#91f3e68f5750dff7bddedeb846ff55447e8cf8f8"
+version = "0.8.13"
+source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#81067b709e578da8ed835ec308bfd3555ecb3d57"
 dependencies = [
  "frame-benchmarking",
  "frame-system-rpc-runtime-api",
@@ -4689,8 +4848,8 @@ dependencies = [
 
 [[package]]
 name = "polkadot-statement-table"
-version = "0.8.8"
-source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#91f3e68f5750dff7bddedeb846ff55447e8cf8f8"
+version = "0.8.13"
+source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#81067b709e578da8ed835ec308bfd3555ecb3d57"
 dependencies = [
  "parity-scale-codec",
  "polkadot-primitives",
@@ -4699,8 +4858,8 @@ dependencies = [
 
 [[package]]
 name = "polkadot-test-runtime"
-version = "0.8.8"
-source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#91f3e68f5750dff7bddedeb846ff55447e8cf8f8"
+version = "0.8.13"
+source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#81067b709e578da8ed835ec308bfd3555ecb3d57"
 dependencies = [
  "bitvec",
  "frame-executive",
@@ -4750,7 +4909,7 @@ dependencies = [
 [[package]]
 name = "polkadot-test-runtime-client"
 version = "2.0.0"
-source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#91f3e68f5750dff7bddedeb846ff55447e8cf8f8"
+source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#81067b709e578da8ed835ec308bfd3555ecb3d57"
 dependencies = [
  "futures 0.3.5",
  "pallet-timestamp",
@@ -4772,8 +4931,8 @@ dependencies = [
 
 [[package]]
 name = "polkadot-validation"
-version = "0.8.8"
-source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#91f3e68f5750dff7bddedeb846ff55447e8cf8f8"
+version = "0.8.13"
+source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#81067b709e578da8ed835ec308bfd3555ecb3d57"
 dependencies = [
  "bitvec",
  "derive_more 0.14.1",
@@ -4808,6 +4967,25 @@ dependencies = [
  "tokio 0.2.21",
 ]
 
+[[package]]
+name = "poly1305"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b5829f50f48e9ddb79f3f7c3097029d0caee30f8286accb241416df603b080b8"
+dependencies = [
+ "universal-hash",
+]
+
+[[package]]
+name = "polyval"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7ec3341498978de3bfd12d1b22f1af1de22818f5473a11e8a6ef997989e3a212"
+dependencies = [
+ "cfg-if",
+ "universal-hash",
+]
+
 [[package]]
 name = "ppv-lite86"
 version = "0.2.8"
@@ -5389,6 +5567,27 @@ dependencies = [
  "winapi 0.3.8",
 ]
 
+[[package]]
+name = "rental"
+version = "0.5.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8545debe98b2b139fb04cad8618b530e9b07c152d99a5de83c860b877d67847f"
+dependencies = [
+ "rental-impl",
+ "stable_deref_trait",
+]
+
+[[package]]
+name = "rental-impl"
+version = "0.5.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "475e68978dc5b743f2f40d8e0a8fdc83f1c5e78cbf4b8fa5e74e73beebc340de"
+dependencies = [
+ "proc-macro2 1.0.18",
+ "quote 1.0.7",
+ "syn 1.0.31",
+]
+
 [[package]]
 name = "ring"
 version = "0.16.14"
@@ -5541,8 +5740,8 @@ dependencies = [
 
 [[package]]
 name = "sc-authority-discovery"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "bytes 0.5.4",
  "derive_more 0.99.7",
@@ -5568,8 +5767,8 @@ dependencies = [
 
 [[package]]
 name = "sc-basic-authorship"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "futures 0.3.5",
  "futures-timer 3.0.2",
@@ -5592,8 +5791,8 @@ dependencies = [
 
 [[package]]
 name = "sc-block-builder"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "parity-scale-codec",
  "sc-client-api",
@@ -5608,8 +5807,8 @@ dependencies = [
 
 [[package]]
 name = "sc-chain-spec"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "impl-trait-for-tuples",
  "sc-chain-spec-derive",
@@ -5624,8 +5823,8 @@ dependencies = [
 
 [[package]]
 name = "sc-chain-spec-derive"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "proc-macro-crate",
  "proc-macro2 1.0.18",
@@ -5635,8 +5834,8 @@ dependencies = [
 
 [[package]]
 name = "sc-cli"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "ansi_term 0.12.1",
  "atty",
@@ -5675,8 +5874,8 @@ dependencies = [
 
 [[package]]
 name = "sc-client-api"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "derive_more 0.99.7",
  "fnv",
@@ -5711,8 +5910,8 @@ dependencies = [
 
 [[package]]
 name = "sc-client-db"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "blake2-rfc",
  "hash-db",
@@ -5740,8 +5939,8 @@ dependencies = [
 
 [[package]]
 name = "sc-consensus"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "sc-client-api",
  "sp-blockchain",
@@ -5751,8 +5950,8 @@ dependencies = [
 
 [[package]]
 name = "sc-consensus-babe"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "derive_more 0.99.7",
  "fork-tree",
@@ -5793,8 +5992,8 @@ dependencies = [
 
 [[package]]
 name = "sc-consensus-babe-rpc"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "derive_more 0.99.7",
  "futures 0.3.5",
@@ -5807,6 +6006,7 @@ dependencies = [
  "sc-rpc-api",
  "serde",
  "sp-api",
+ "sp-application-crypto",
  "sp-blockchain",
  "sp-consensus",
  "sp-consensus-babe",
@@ -5816,8 +6016,8 @@ dependencies = [
 
 [[package]]
 name = "sc-consensus-epochs"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "fork-tree",
  "parity-scale-codec",
@@ -5829,8 +6029,8 @@ dependencies = [
 
 [[package]]
 name = "sc-consensus-slots"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "futures 0.3.5",
  "futures-timer 3.0.2",
@@ -5851,8 +6051,8 @@ dependencies = [
 
 [[package]]
 name = "sc-consensus-uncles"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "log 0.4.8",
  "sc-client-api",
@@ -5865,8 +6065,8 @@ dependencies = [
 
 [[package]]
 name = "sc-executor"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "derive_more 0.99.7",
  "lazy_static",
@@ -5893,8 +6093,8 @@ dependencies = [
 
 [[package]]
 name = "sc-executor-common"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "derive_more 0.99.7",
  "log 0.4.8",
@@ -5910,8 +6110,8 @@ dependencies = [
 
 [[package]]
 name = "sc-executor-wasmi"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "log 0.4.8",
  "parity-scale-codec",
@@ -5925,8 +6125,8 @@ dependencies = [
 
 [[package]]
 name = "sc-executor-wasmtime"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "cranelift-codegen",
  "cranelift-wasm",
@@ -5946,8 +6146,8 @@ dependencies = [
 
 [[package]]
 name = "sc-finality-grandpa"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "assert_matches",
  "derive_more 0.99.7",
@@ -5984,8 +6184,8 @@ dependencies = [
 
 [[package]]
 name = "sc-finality-grandpa-rpc"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "derive_more 0.99.7",
  "finality-grandpa",
@@ -6001,13 +6201,14 @@ dependencies = [
 
 [[package]]
 name = "sc-informant"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "ansi_term 0.12.1",
  "futures 0.3.5",
  "log 0.4.8",
  "parity-util-mem 0.6.1",
+ "parking_lot 0.10.2",
  "sc-client-api",
  "sc-network",
  "sp-blockchain",
@@ -6019,11 +6220,12 @@ dependencies = [
 
 [[package]]
 name = "sc-keystore"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "derive_more 0.99.7",
  "hex",
+ "merlin",
  "parking_lot 0.10.2",
  "rand 0.7.3",
  "serde_json",
@@ -6034,8 +6236,8 @@ dependencies = [
 
 [[package]]
 name = "sc-light"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "hash-db",
  "lazy_static",
@@ -6053,8 +6255,8 @@ dependencies = [
 
 [[package]]
 name = "sc-network"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "bitflags",
  "bs58",
@@ -6066,7 +6268,7 @@ dependencies = [
  "fork-tree",
  "futures 0.3.5",
  "futures-timer 3.0.2",
- "futures_codec",
+ "futures_codec 0.3.4",
  "hex",
  "ip_network",
  "libp2p",
@@ -6097,7 +6299,7 @@ dependencies = [
  "sp-utils",
  "substrate-prometheus-endpoint",
  "thiserror",
- "unsigned-varint",
+ "unsigned-varint 0.3.3",
  "void",
  "wasm-timer",
  "zeroize",
@@ -6105,8 +6307,8 @@ dependencies = [
 
 [[package]]
 name = "sc-network-gossip"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "futures 0.3.5",
  "futures-timer 3.0.2",
@@ -6120,8 +6322,8 @@ dependencies = [
 
 [[package]]
 name = "sc-offchain"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "bytes 0.5.4",
  "fnv",
@@ -6147,8 +6349,8 @@ dependencies = [
 
 [[package]]
 name = "sc-peerset"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "futures 0.3.5",
  "libp2p",
@@ -6160,8 +6362,8 @@ dependencies = [
 
 [[package]]
 name = "sc-proposer-metrics"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "log 0.4.8",
  "substrate-prometheus-endpoint",
@@ -6169,8 +6371,8 @@ dependencies = [
 
 [[package]]
 name = "sc-rpc"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "futures 0.3.5",
  "hash-db",
@@ -6201,8 +6403,8 @@ dependencies = [
 
 [[package]]
 name = "sc-rpc-api"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "derive_more 0.99.7",
  "futures 0.3.5",
@@ -6225,11 +6427,12 @@ dependencies = [
 
 [[package]]
 name = "sc-rpc-server"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "jsonrpc-core",
  "jsonrpc-http-server",
+ "jsonrpc-ipc-server",
  "jsonrpc-pubsub",
  "jsonrpc-ws-server",
  "log 0.4.8",
@@ -6240,8 +6443,8 @@ dependencies = [
 
 [[package]]
 name = "sc-service"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "derive_more 0.99.7",
  "directories",
@@ -6303,8 +6506,8 @@ dependencies = [
 
 [[package]]
 name = "sc-state-db"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "log 0.4.8",
  "parity-scale-codec",
@@ -6317,10 +6520,9 @@ dependencies = [
 
 [[package]]
 name = "sc-telemetry"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
- "bytes 0.5.4",
  "futures 0.3.5",
  "futures-timer 3.0.2",
  "libp2p",
@@ -6339,23 +6541,25 @@ dependencies = [
 
 [[package]]
 name = "sc-tracing"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "erased-serde",
  "log 0.4.8",
  "parking_lot 0.10.2",
+ "rustc-hash",
  "sc-telemetry",
  "serde",
  "serde_json",
  "slog",
+ "sp-tracing",
  "tracing-core",
 ]
 
 [[package]]
 name = "sc-transaction-graph"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "derive_more 0.99.7",
  "futures 0.3.5",
@@ -6374,8 +6578,8 @@ dependencies = [
 
 [[package]]
 name = "sc-transaction-pool"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "derive_more 0.99.7",
  "futures 0.3.5",
@@ -6705,13 +6909,13 @@ checksum = "c7cb5678e1615754284ec264d9bb5b4c27d2018577fd90ac0ceb578591ed5ee4"
 
 [[package]]
 name = "snow"
-version = "0.6.2"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "afb767eee7d257ba202f0b9b08673bc13b22281632ef45267b19f13100accd2f"
+checksum = "ce0f91be479494dd92e69d9971bd23ed27037dd1c94fcf558f6c6e74e6afa654"
 dependencies = [
- "arrayref",
- "blake2-rfc",
- "chacha20-poly1305-aead",
+ "aes-gcm",
+ "blake2",
+ "chacha20poly1305",
  "rand 0.7.3",
  "rand_core 0.5.1",
  "ring",
@@ -6741,7 +6945,6 @@ checksum = "1c9dab3f95c9ebdf3a88268c19af668f637a3c5039c2c56ff2d40b1b2d64a25b"
 dependencies = [
  "base64 0.11.0",
  "bytes 0.5.4",
- "flate2",
  "futures 0.3.5",
  "http 0.2.1",
  "httparse",
@@ -6753,10 +6956,26 @@ dependencies = [
  "thiserror",
 ]
 
+[[package]]
+name = "soketto"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "85457366ae0c6ce56bf05a958aef14cd38513c236568618edbcd9a8c52cb80b0"
+dependencies = [
+ "base64 0.12.1",
+ "bytes 0.5.4",
+ "flate2",
+ "futures 0.3.5",
+ "httparse",
+ "log 0.4.8",
+ "rand 0.7.3",
+ "sha-1",
+]
+
 [[package]]
 name = "sp-allocator"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "derive_more 0.99.7",
  "log 0.4.8",
@@ -6767,8 +6986,8 @@ dependencies = [
 
 [[package]]
 name = "sp-api"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "hash-db",
  "parity-scale-codec",
@@ -6782,8 +7001,8 @@ dependencies = [
 
 [[package]]
 name = "sp-api-proc-macro"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "blake2-rfc",
  "proc-macro-crate",
@@ -6794,8 +7013,8 @@ dependencies = [
 
 [[package]]
 name = "sp-application-crypto"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "parity-scale-codec",
  "serde",
@@ -6806,8 +7025,8 @@ dependencies = [
 
 [[package]]
 name = "sp-arithmetic"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "integer-sqrt",
  "num-traits 0.2.12",
@@ -6819,8 +7038,8 @@ dependencies = [
 
 [[package]]
 name = "sp-authority-discovery"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "parity-scale-codec",
  "sp-api",
@@ -6831,8 +7050,8 @@ dependencies = [
 
 [[package]]
 name = "sp-authorship"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "parity-scale-codec",
  "sp-inherents",
@@ -6842,8 +7061,8 @@ dependencies = [
 
 [[package]]
 name = "sp-block-builder"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "parity-scale-codec",
  "sp-api",
@@ -6854,8 +7073,8 @@ dependencies = [
 
 [[package]]
 name = "sp-blockchain"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "derive_more 0.99.7",
  "log 0.4.8",
@@ -6870,8 +7089,8 @@ dependencies = [
 
 [[package]]
 name = "sp-chain-spec"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "serde",
  "serde_json",
@@ -6879,8 +7098,8 @@ dependencies = [
 
 [[package]]
 name = "sp-consensus"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "derive_more 0.99.7",
  "futures 0.3.5",
@@ -6898,12 +7117,13 @@ dependencies = [
  "sp-utils",
  "sp-version",
  "substrate-prometheus-endpoint",
+ "wasm-timer",
 ]
 
 [[package]]
 name = "sp-consensus-aura"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "parity-scale-codec",
  "sp-api",
@@ -6916,8 +7136,8 @@ dependencies = [
 
 [[package]]
 name = "sp-consensus-babe"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "merlin",
  "parity-scale-codec",
@@ -6925,6 +7145,7 @@ dependencies = [
  "sp-application-crypto",
  "sp-consensus",
  "sp-consensus-vrf",
+ "sp-core",
  "sp-inherents",
  "sp-runtime",
  "sp-std",
@@ -6933,8 +7154,8 @@ dependencies = [
 
 [[package]]
 name = "sp-consensus-vrf"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "parity-scale-codec",
  "schnorrkel",
@@ -6945,8 +7166,8 @@ dependencies = [
 
 [[package]]
 name = "sp-core"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "base58",
  "blake2-rfc",
@@ -6987,8 +7208,8 @@ dependencies = [
 
 [[package]]
 name = "sp-database"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "kvdb",
  "parking_lot 0.10.2",
@@ -6996,8 +7217,8 @@ dependencies = [
 
 [[package]]
 name = "sp-debug-derive"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "proc-macro2 1.0.18",
  "quote 1.0.7",
@@ -7006,8 +7227,8 @@ dependencies = [
 
 [[package]]
 name = "sp-externalities"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "environmental",
  "parity-scale-codec",
@@ -7017,8 +7238,8 @@ dependencies = [
 
 [[package]]
 name = "sp-finality-grandpa"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "finality-grandpa",
  "log 0.4.8",
@@ -7033,8 +7254,8 @@ dependencies = [
 
 [[package]]
 name = "sp-finality-tracker"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "parity-scale-codec",
  "sp-inherents",
@@ -7043,8 +7264,8 @@ dependencies = [
 
 [[package]]
 name = "sp-inherents"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "derive_more 0.99.7",
  "parity-scale-codec",
@@ -7055,8 +7276,8 @@ dependencies = [
 
 [[package]]
 name = "sp-io"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "futures 0.3.5",
  "hash-db",
@@ -7069,14 +7290,15 @@ dependencies = [
  "sp-runtime-interface",
  "sp-state-machine",
  "sp-std",
+ "sp-tracing",
  "sp-trie",
  "sp-wasm-interface",
 ]
 
 [[package]]
 name = "sp-keyring"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "lazy_static",
  "sp-core",
@@ -7086,8 +7308,8 @@ dependencies = [
 
 [[package]]
 name = "sp-npos-elections"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "parity-scale-codec",
  "serde",
@@ -7098,8 +7320,8 @@ dependencies = [
 
 [[package]]
 name = "sp-npos-elections-compact"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "proc-macro-crate",
  "proc-macro2 1.0.18",
@@ -7109,8 +7331,8 @@ dependencies = [
 
 [[package]]
 name = "sp-offchain"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "sp-api",
  "sp-core",
@@ -7119,8 +7341,8 @@ dependencies = [
 
 [[package]]
 name = "sp-panic-handler"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "backtrace",
  "log 0.4.8",
@@ -7128,8 +7350,8 @@ dependencies = [
 
 [[package]]
 name = "sp-rpc"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "serde",
  "sp-core",
@@ -7137,8 +7359,8 @@ dependencies = [
 
 [[package]]
 name = "sp-runtime"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "either",
  "hash256-std-hasher",
@@ -7159,8 +7381,8 @@ dependencies = [
 
 [[package]]
 name = "sp-runtime-interface"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "parity-scale-codec",
  "primitive-types",
@@ -7174,8 +7396,8 @@ dependencies = [
 
 [[package]]
 name = "sp-runtime-interface-proc-macro"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "Inflector",
  "proc-macro-crate",
@@ -7186,8 +7408,8 @@ dependencies = [
 
 [[package]]
 name = "sp-serializer"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "serde",
  "serde_json",
@@ -7195,8 +7417,8 @@ dependencies = [
 
 [[package]]
 name = "sp-session"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "parity-scale-codec",
  "sp-api",
@@ -7208,8 +7430,8 @@ dependencies = [
 
 [[package]]
 name = "sp-staking"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "parity-scale-codec",
  "sp-runtime",
@@ -7218,15 +7440,17 @@ dependencies = [
 
 [[package]]
 name = "sp-state-machine"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "hash-db",
+ "itertools 0.9.0",
  "log 0.4.8",
  "num-traits 0.2.12",
  "parity-scale-codec",
  "parking_lot 0.10.2",
  "rand 0.7.3",
+ "smallvec 1.4.0",
  "sp-core",
  "sp-externalities",
  "sp-panic-handler",
@@ -7237,13 +7461,13 @@ dependencies = [
 
 [[package]]
 name = "sp-std"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 
 [[package]]
 name = "sp-storage"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "impl-serde 0.2.3",
  "ref-cast",
@@ -7254,8 +7478,8 @@ dependencies = [
 
 [[package]]
 name = "sp-test-primitives"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "parity-scale-codec",
  "parity-util-mem 0.6.1",
@@ -7267,8 +7491,8 @@ dependencies = [
 
 [[package]]
 name = "sp-timestamp"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "impl-trait-for-tuples",
  "parity-scale-codec",
@@ -7281,16 +7505,18 @@ dependencies = [
 
 [[package]]
 name = "sp-tracing"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
+ "log 0.4.8",
+ "rental",
  "tracing",
 ]
 
 [[package]]
 name = "sp-transaction-pool"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "derive_more 0.99.7",
  "futures 0.3.5",
@@ -7305,11 +7531,11 @@ dependencies = [
 
 [[package]]
 name = "sp-trie"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "hash-db",
- "memory-db 0.20.1",
+ "memory-db 0.21.0",
  "parity-scale-codec",
  "sp-core",
  "sp-std",
@@ -7319,19 +7545,20 @@ dependencies = [
 
 [[package]]
 name = "sp-utils"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "futures 0.3.5",
  "futures-core",
+ "futures-timer 3.0.2",
  "lazy_static",
  "prometheus",
 ]
 
 [[package]]
 name = "sp-version"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "impl-serde 0.2.3",
  "parity-scale-codec",
@@ -7342,8 +7569,8 @@ dependencies = [
 
 [[package]]
 name = "sp-wasm-interface"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "impl-trait-for-tuples",
  "parity-scale-codec",
@@ -7378,6 +7605,15 @@ dependencies = [
  "rand 0.5.6",
 ]
 
+[[package]]
+name = "stream-cipher"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8131256a5896cabcf5eb04f4d6dacbe1aefda854b0d9896e09cb58829ec5638c"
+dependencies = [
+ "generic-array",
+]
+
 [[package]]
 name = "string"
 version = "0.2.1"
@@ -7461,16 +7697,16 @@ dependencies = [
 
 [[package]]
 name = "substrate-build-script-utils"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "platforms",
 ]
 
 [[package]]
 name = "substrate-frame-rpc-system"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "frame-system-rpc-runtime-api",
  "futures 0.3.5",
@@ -7480,8 +7716,10 @@ dependencies = [
  "log 0.4.8",
  "parity-scale-codec",
  "sc-client-api",
+ "sc-rpc-api",
  "serde",
  "sp-api",
+ "sp-block-builder",
  "sp-blockchain",
  "sp-core",
  "sp-runtime",
@@ -7490,8 +7728,8 @@ dependencies = [
 
 [[package]]
 name = "substrate-prometheus-endpoint"
-version = "0.8.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "0.8.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "async-std",
  "derive_more 0.99.7",
@@ -7504,8 +7742,8 @@ dependencies = [
 
 [[package]]
 name = "substrate-test-client"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "futures 0.3.5",
  "hash-db",
@@ -7526,8 +7764,8 @@ dependencies = [
 
 [[package]]
 name = "substrate-test-runtime"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "cfg-if",
  "frame-executive",
@@ -7535,7 +7773,7 @@ dependencies = [
  "frame-system",
  "frame-system-rpc-runtime-api",
  "log 0.4.8",
- "memory-db 0.20.1",
+ "memory-db 0.21.0",
  "pallet-babe",
  "pallet-timestamp",
  "parity-scale-codec",
@@ -7566,8 +7804,8 @@ dependencies = [
 
 [[package]]
 name = "substrate-test-runtime-client"
-version = "2.0.0-rc3"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+version = "2.0.0-rc4"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 dependencies = [
  "futures 0.3.5",
  "parity-scale-codec",
@@ -7588,7 +7826,7 @@ dependencies = [
 [[package]]
 name = "substrate-wasm-builder-runner"
 version = "1.0.6"
-source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#740115371b096af4ca2c3b2c860d95ba801cffcb"
+source = "git+https://github.com/paritytech/substrate?branch=cumulus-branch#e8f901868997be15635cba9b21a99b212009adc8"
 
 [[package]]
 name = "substrate-wasm-builder-runner"
@@ -8026,6 +8264,19 @@ dependencies = [
  "log 0.4.8",
 ]
 
+[[package]]
+name = "tokio-named-pipes"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9d282d483052288b2308ba5ee795f5673b159c9bdf63c385a05609da782a5eae"
+dependencies = [
+ "bytes 0.4.12",
+ "futures 0.1.29",
+ "mio",
+ "mio-named-pipes",
+ "tokio 0.1.22",
+]
+
 [[package]]
 name = "tokio-reactor"
 version = "0.1.12"
@@ -8057,6 +8308,15 @@ dependencies = [
  "webpki",
 ]
 
+[[package]]
+name = "tokio-service"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "24da22d077e0f15f55162bdbdc661228c1581892f52074fb242678d015b45162"
+dependencies = [
+ "futures 0.1.29",
+]
+
 [[package]]
 name = "tokio-sync"
 version = "0.1.8"
@@ -8222,9 +8482,9 @@ checksum = "a7f741b240f1a48843f9b8e0444fb55fb2a4ff67293b50a9179dfd5ea67f8d41"
 
 [[package]]
 name = "trie-db"
-version = "0.20.1"
+version = "0.21.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bcc309f34008563989045a4c4dbcc5770467f3a3785ee80a9b5cc0d83362475f"
+checksum = "cb230c24c741993b04cfccbabb45acff6f6480c5f00d3ed8794ea43db3a9d727"
 dependencies = [
  "hash-db",
  "hashbrown 0.6.3",
@@ -8341,6 +8601,16 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"
 
+[[package]]
+name = "universal-hash"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "df0c900f2f9b4116803415878ff48b63da9edb268668e08cf9292d7503114a01"
+dependencies = [
+ "generic-array",
+ "subtle 2.2.3",
+]
+
 [[package]]
 name = "unsigned-varint"
 version = "0.3.3"
@@ -8350,7 +8620,17 @@ dependencies = [
  "bytes 0.5.4",
  "futures-io",
  "futures-util",
- "futures_codec",
+ "futures_codec 0.3.4",
+]
+
+[[package]]
+name = "unsigned-varint"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "669d776983b692a906c881fcd0cfb34271a48e197e4d6cb8df32b05bfc3d3fa5"
+dependencies = [
+ "bytes 0.5.4",
+ "futures_codec 0.4.1",
 ]
 
 [[package]]
@@ -8670,8 +8950,8 @@ dependencies = [
 
 [[package]]
 name = "westend-runtime"
-version = "0.8.8"
-source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#91f3e68f5750dff7bddedeb846ff55447e8cf8f8"
+version = "0.8.13"
+source = "git+https://github.com/paritytech/polkadot?branch=cumulus-branch#81067b709e578da8ed835ec308bfd3555ecb3d57"
 dependencies = [
  "bitvec",
  "frame-executive",
diff --git a/collator/src/lib.rs b/collator/src/lib.rs
index cb4feb4a64e..b14729c358b 100644
--- a/collator/src/lib.rs
+++ b/collator/src/lib.rs
@@ -20,8 +20,12 @@ use cumulus_network::{
 	DelayedBlockAnnounceValidator, JustifiedBlockAnnounceValidator, WaitToAnnounce,
 };
 use cumulus_primitives::{
-	inherents::{VALIDATION_FUNCTION_PARAMS_IDENTIFIER as VFP_IDENT, DOWNWARD_MESSAGES_IDENTIFIER, DownwardMessagesType},
-	validation_function_params::ValidationFunctionParams, HeadData,
+	inherents::{
+		DownwardMessagesType, DOWNWARD_MESSAGES_IDENTIFIER,
+		VALIDATION_FUNCTION_PARAMS_IDENTIFIER as VFP_IDENT,
+	},
+	validation_function_params::ValidationFunctionParams,
+	HeadData,
 };
 use cumulus_runtime::ParachainBlockData;
 
@@ -37,8 +41,7 @@ use sp_inherents::{InherentData, InherentDataProviders};
 use sp_runtime::traits::{Block as BlockT, HashFor, Header as HeaderT};
 
 use polkadot_collator::{
-	BuildParachainContext, InvalidHead, Network as CollatorNetwork, ParachainContext,
-	RuntimeApiCollection,
+	BuildParachainContext, Network as CollatorNetwork, ParachainContext, RuntimeApiCollection,
 };
 use polkadot_primitives::{
 	parachain::{self, BlockData, GlobalValidationSchedule, Id as ParaId, LocalValidationData},
@@ -99,15 +102,17 @@ impl<Block: BlockT, PF, BI> Collator<Block, PF, BI> {
 		global_validation: GlobalValidationSchedule,
 		local_validation: LocalValidationData,
 		downward_messages: DownwardMessagesType,
-	) -> Result<InherentData, InvalidHead> {
-		let mut inherent_data = inherent_providers.create_inherent_data().map_err(|e| {
-			error!(
-				target: "cumulus-collator",
-				"Failed to create inherent data: {:?}",
-				e,
-			);
-			InvalidHead
-		})?;
+	) -> Option<InherentData> {
+		let mut inherent_data = inherent_providers
+			.create_inherent_data()
+			.map_err(|e| {
+				error!(
+					target: "cumulus-collator",
+					"Failed to create inherent data: {:?}",
+					e,
+				);
+			})
+			.ok()?;
 
 		inherent_data
 			.put_data(
@@ -120,24 +125,21 @@ impl<Block: BlockT, PF, BI> Collator<Block, PF, BI> {
 					"Failed to put validation function params into inherent data: {:?}",
 					e,
 				);
-				InvalidHead
-			})?;
+			})
+			.ok()?;
 
 		inherent_data
-			.put_data(
-				DOWNWARD_MESSAGES_IDENTIFIER,
-				&downward_messages,
-			)
+			.put_data(DOWNWARD_MESSAGES_IDENTIFIER, &downward_messages)
 			.map_err(|e| {
 				error!(
 					target: "cumulus-collator",
 					"Failed to put downward messages into inherent data: {:?}",
 					e,
 				);
-				InvalidHead
-			})?;
+			})
+			.ok()?;
 
-		Ok(inherent_data)
+		Some(inherent_data)
 	}
 }
 
@@ -168,7 +170,7 @@ where
 		+ 'static,
 {
 	type ProduceCandidate =
-		Pin<Box<dyn Future<Output = Result<(BlockData, parachain::HeadData), InvalidHead>> + Send>>;
+		Pin<Box<dyn Future<Output = Option<(BlockData, parachain::HeadData)>> + Send>>;
 
 	fn produce_candidate(
 		&mut self,
@@ -187,7 +189,7 @@ where
 			Ok(x) => x,
 			Err(e) => {
 				error!(target: "cumulus-collator", "Could not decode the head data: {:?}", e);
-				return Box::pin(future::ready(Err(InvalidHead)));
+				return Box::pin(future::ready(None));
 			}
 		};
 
@@ -196,14 +198,16 @@ where
 		let wait_to_announce = self.wait_to_announce.clone();
 
 		Box::pin(async move {
-			let proposer = proposer_future.await.map_err(|e| {
-				error!(
-					target: "cumulus-collator",
-					"Could not create proposer: {:?}",
-					e,
-				);
-				InvalidHead
-			})?;
+			let proposer = proposer_future
+				.await
+				.map_err(|e| {
+					error!(
+						target: "cumulus-collator",
+						"Could not create proposer: {:?}",
+						e,
+					);
+				})
+				.ok()?;
 
 			let inherent_data = Self::inherent_data(
 				inherent_providers,
@@ -231,16 +235,20 @@ where
 						"Proposing failed: {:?}",
 						e,
 					);
-					InvalidHead
-				})?;
+				})
+				.ok()?;
 
-			let proof = proof.ok_or_else(|| {
-				error!(
-					target: "cumulus-collator",
-					"Proposer did not return the requested proof.",
-				);
-				InvalidHead
-			})?;
+			let proof = match proof {
+				Some(proof) => proof,
+				None => {
+					error!(
+						target: "cumulus-collator",
+						"Proposer did not return the requested proof.",
+					);
+
+					return None;
+				}
+			};
 
 			let (header, extrinsics) = block.deconstruct();
 
@@ -266,7 +274,8 @@ where
 					b.header().parent_hash(),
 					err,
 				);
-				return Err(InvalidHead);
+
+				return None;
 			}
 
 			let block_data = BlockData(b.encode());
@@ -283,7 +292,7 @@ where
 
 			trace!(target: "cumulus-collator", "Produced candidate: {:?}", candidate);
 
-			Ok(candidate)
+			Some(candidate)
 		})
 	}
 }
diff --git a/consensus/src/import_queue.rs b/consensus/src/import_queue.rs
index 37c53247282..5324805ffca 100644
--- a/consensus/src/import_queue.rs
+++ b/consensus/src/import_queue.rs
@@ -101,7 +101,7 @@ pub fn import_queue<Client, Block: BlockT, I>(
 	client: Arc<Client>,
 	block_import: I,
 	inherent_data_providers: InherentDataProviders,
-	spawner: &impl sp_core::traits::SpawnBlocking,
+	spawner: &impl sp_core::traits::SpawnNamed,
 	registry: Option<&substrate_prometheus_endpoint::Registry>,
 ) -> ClientResult<BasicQueue<Block, I::Transaction>>
 where
diff --git a/network/src/lib.rs b/network/src/lib.rs
index e7ace02effe..4b17c93512c 100644
--- a/network/src/lib.rs
+++ b/network/src/lib.rs
@@ -105,7 +105,7 @@ where
 
 				Validation::Failure
 			} else {
-				Validation::Success
+				Validation::Success { is_new_best: false }
 			});
 		}
 
@@ -202,7 +202,7 @@ where
 			)) as Box<_>);
 		}
 
-		Ok(Validation::Success)
+		Ok(Validation::Success { is_new_best: false })
 	}
 }
 
diff --git a/network/src/tests.rs b/network/src/tests.rs
index ae9eff060c8..8b6da57c749 100644
--- a/network/src/tests.rs
+++ b/network/src/tests.rs
@@ -104,7 +104,7 @@ fn valid_if_no_data_and_less_than_best_known_number() {
 
 	assert_eq!(
 		res.unwrap(),
-		Validation::Success,
+		Validation::Success { is_new_best: false },
 		"validating without data with block number < best known number is always a success",
 	);
 }
diff --git a/parachain-upgrade/src/lib.rs b/parachain-upgrade/src/lib.rs
index 52aa7a77ef1..7f234dac3ea 100644
--- a/parachain-upgrade/src/lib.rs
+++ b/parachain-upgrade/src/lib.rs
@@ -233,14 +233,16 @@ mod tests {
 
 	use codec::Encode;
 	use frame_support::{
-		assert_ok, impl_outer_event, impl_outer_origin, parameter_types,
+		assert_ok,
+		dispatch::UnfilteredDispatchable,
+		impl_outer_event, impl_outer_origin, parameter_types,
 		traits::{OnFinalize, OnInitialize},
 		weights::Weight,
 	};
 	use sp_core::H256;
 	use sp_runtime::{
 		testing::Header,
-		traits::{BlakeTwo256, Dispatchable, IdentityLookup},
+		traits::{BlakeTwo256, IdentityLookup},
 		Perbill,
 	};
 	use sp_version::RuntimeVersion;
@@ -305,6 +307,7 @@ mod tests {
 		type DbWeight = ();
 		type BlockExecutionWeight = ();
 		type ExtrinsicBaseWeight = ();
+		type BaseCallFilter = ();
 	}
 	impl Trait for Test {
 		type Event = TestEvent;
@@ -472,7 +475,7 @@ mod tests {
 					ParachainUpgrade::on_initialize(*n);
 					ParachainUpgrade::create_inherent(&inherent_data)
 						.expect("got an inherent")
-						.dispatch(RawOrigin::None.into())
+						.dispatch_bypass_filter(RawOrigin::None.into())
 						.expect("dispatch succeeded");
 					within_block();
 					ParachainUpgrade::on_finalize(*n);
diff --git a/runtime/Cargo.toml b/runtime/Cargo.toml
index fb10cbd7161..ce15b5b9a92 100644
--- a/runtime/Cargo.toml
+++ b/runtime/Cargo.toml
@@ -9,7 +9,7 @@ edition = "2018"
 codec = { package = "parity-scale-codec", version = "1.3.0", default-features = false, features = [ "derive" ] }
 memory-db = { version = "0.18.0", default-features = false }
 hash-db = { version = "0.15.2", default-features = false }
-trie-db = { version = "0.20.1", default-features = false }
+trie-db = { version = "0.21.0", default-features = false }
 hashbrown = "0.6.1"
 
 # Cumulus dependencies
diff --git a/test/parachain/Cargo.toml b/test/parachain/Cargo.toml
index 667a38b815b..5dc82c6c062 100644
--- a/test/parachain/Cargo.toml
+++ b/test/parachain/Cargo.toml
@@ -39,6 +39,7 @@ sc-network = { git = "https://github.com/paritytech/substrate", branch = "cumulu
 sc-basic-authorship = { git = "https://github.com/paritytech/substrate", branch = "cumulus-branch", version = "0.8.0-alpha.5" }
 sp-timestamp = { git = "https://github.com/paritytech/substrate", branch = "cumulus-branch" }
 sc-finality-grandpa = { git = "https://github.com/paritytech/substrate", branch = "cumulus-branch" }
+sc-informant = { git = "https://github.com/paritytech/substrate", branch = "cumulus-branch" }
 
 # Cumulus dependencies
 cumulus-consensus = { path = "../../consensus" }
diff --git a/test/parachain/runtime/src/lib.rs b/test/parachain/runtime/src/lib.rs
index f966c52af5b..ce3d7af26e1 100644
--- a/test/parachain/runtime/src/lib.rs
+++ b/test/parachain/runtime/src/lib.rs
@@ -191,6 +191,7 @@ impl frame_system::Trait for Runtime {
 	type ExtrinsicBaseWeight = ExtrinsicBaseWeight;
 	type BlockExecutionWeight = ();
 	type MaximumExtrinsicWeight = MaximumExtrinsicWeight;
+	type BaseCallFilter = ();
 }
 
 parameter_types! {
diff --git a/test/parachain/src/command.rs b/test/parachain/src/command.rs
index 60b9468a01c..9396ea8f90e 100644
--- a/test/parachain/src/command.rs
+++ b/test/parachain/src/command.rs
@@ -17,14 +17,14 @@
 use crate::chain_spec;
 use crate::cli::{Cli, PolkadotCli, Subcommand};
 use codec::Encode;
+use cumulus_primitives::ParaId;
 use log::info;
 use parachain_runtime::Block;
 use polkadot_parachain::primitives::AccountIdConversion;
 use sc_cli::{
-	CliConfiguration, Error, ImportParams, KeystoreParams, NetworkParams, Result, SharedParams,
-	SubstrateCli,
+	ChainSpec, CliConfiguration, Error, ImportParams, KeystoreParams, NetworkParams, Result, Role,
+	RuntimeVersion, SharedParams, SubstrateCli,
 };
-use sc_executor::NativeExecutionDispatch;
 use sc_service::config::{BasePath, PrometheusConfig};
 use sp_core::hexdisplay::HexDisplay;
 use sp_runtime::{
@@ -32,7 +32,6 @@ use sp_runtime::{
 	BuildStorage,
 };
 use std::{net::SocketAddr, sync::Arc};
-use cumulus_primitives::ParaId;
 
 impl SubstrateCli for Cli {
 	fn impl_name() -> &'static str {
@@ -68,7 +67,13 @@ impl SubstrateCli for Cli {
 
 	fn load_spec(&self, _id: &str) -> std::result::Result<Box<dyn sc_service::ChainSpec>, String> {
 		// Such a hack :(
-		Ok(Box::new(chain_spec::get_chain_spec(self.run.parachain_id.into())))
+		Ok(Box::new(chain_spec::get_chain_spec(
+			self.run.parachain_id.into(),
+		)))
+	}
+
+	fn native_runtime_version(_: &Box<dyn ChainSpec>) -> &'static RuntimeVersion {
+		&parachain_runtime::VERSION
 	}
 }
 
@@ -114,6 +119,10 @@ impl SubstrateCli for PolkadotCli {
 			)?),
 		})
 	}
+
+	fn native_runtime_version(chain_spec: &Box<dyn ChainSpec>) -> &'static RuntimeVersion {
+		polkadot_cli::Cli::native_runtime_version(chain_spec)
+	}
 }
 
 fn generate_genesis_state(para_id: ParaId) -> Result<Block> {
@@ -180,22 +189,18 @@ pub fn run() -> Result<()> {
 				))
 			};
 
-			runner.run_node(
-				|config| polkadot_service::polkadot_new_light(config),
-				|config| {
-					polkadot_service::polkadot_new_full(
-						config,
-						None,
-						None,
-						authority_discovery_enabled,
-						6000,
-						grandpa_pause,
-						None,
-					)
-					.map(|(s, _, _)| s)
-				},
-				polkadot_service::PolkadotExecutor::native_version().runtime_version,
-			)
+			runner.run_node_until_exit(|config| match config.role {
+				Role::Light => polkadot_service::polkadot_new_light(config).map(|r| r.0),
+				_ => polkadot_service::polkadot_new_full(
+					config,
+					None,
+					None,
+					authority_discovery_enabled,
+					6000,
+					grandpa_pause,
+				)
+				.map(|(s, _, _)| s),
+			})
 		}
 		Some(Subcommand::PolkadotValidationWorker(cmd)) => {
 			sc_cli::init_logger("");
@@ -223,27 +228,25 @@ pub fn run() -> Result<()> {
 			let block = generate_genesis_state(id)?;
 			let genesis_state = format!("0x{:?}", HexDisplay::from(&block.header().encode()));
 
-			runner.run_full_node(
-				|config| {
-					polkadot_cli.base_path =
-						config.base_path.as_ref().map(|x| x.path().join("polkadot"));
-
-					let task_executor = config.task_executor.clone();
-					let polkadot_config = SubstrateCli::create_configuration(
-						&polkadot_cli,
-						&polkadot_cli,
-						task_executor,
-					)
-					.unwrap();
-
-					info!("Parachain id: {:?}", id);
-					info!("Parachain Account: {}", parachain_account);
-					info!("Parachain genesis state: {}", genesis_state);
-
-					crate::service::run_collator(config, key, polkadot_config, id)
-				},
-				parachain_runtime::VERSION,
-			)
+			runner.run_node_until_exit(|config| {
+				if matches!(config.role, Role::Light) {
+					return Err("Light client not supporter!".into());
+				}
+
+				polkadot_cli.base_path =
+					config.base_path.as_ref().map(|x| x.path().join("polkadot"));
+
+				let task_executor = config.task_executor.clone();
+				let polkadot_config =
+					SubstrateCli::create_configuration(&polkadot_cli, &polkadot_cli, task_executor)
+						.unwrap();
+
+				info!("Parachain id: {:?}", id);
+				info!("Parachain Account: {}", parachain_account);
+				info!("Parachain genesis state: {}", genesis_state);
+
+				crate::service::run_collator(config, key, polkadot_config, id)
+			})
 		}
 	}
 }
@@ -269,8 +272,7 @@ impl CliConfiguration for PolkadotCli {
 		Ok(self
 			.shared_params()
 			.base_path()
-			.or_else(|| self.base_path.clone().map(Into::into))
-		)
+			.or_else(|| self.base_path.clone().map(Into::into)))
 	}
 
 	fn rpc_http(&self) -> Result<Option<SocketAddr>> {
diff --git a/test/parachain/src/service.rs b/test/parachain/src/service.rs
index 1d1e683254c..6c394ee4832 100644
--- a/test/parachain/src/service.rs
+++ b/test/parachain/src/service.rs
@@ -24,7 +24,8 @@ pub use sc_executor::NativeExecutor;
 use sc_finality_grandpa::{
 	FinalityProofProvider as GrandpaFinalityProofProvider, StorageAndProofProvider,
 };
-use sc_service::{AbstractService, Configuration};
+use sc_informant::OutputFormat;
+use sc_service::{Configuration, TaskManager};
 use std::sync::Arc;
 
 // Our native executor instance.
@@ -71,7 +72,7 @@ macro_rules! new_full_start {
 		})?;
 
 		(builder, inherent_data_providers)
-		}};
+	}};
 }
 
 /// Run a collator node with the given parachain `Configuration` and relaychain `Configuration`
@@ -80,10 +81,15 @@ macro_rules! new_full_start {
 pub fn run_collator(
 	parachain_config: Configuration,
 	key: Arc<CollatorPair>,
-	polkadot_config: polkadot_collator::Configuration,
+	mut polkadot_config: polkadot_collator::Configuration,
 	id: polkadot_primitives::parachain::Id,
-) -> sc_service::error::Result<impl AbstractService> {
-	let parachain_config = prepare_collator_config(parachain_config);
+) -> sc_service::error::Result<TaskManager> {
+	let mut parachain_config = prepare_collator_config(parachain_config);
+
+	parachain_config.informant_output_format = OutputFormat {
+		enable_color: true,
+		prefix: format!("[{}] ", Color::Yellow.bold().paint("Parachain")),
+	};
 
 	let (builder, inherent_data_providers) = new_full_start!(parachain_config);
 	inherent_data_providers
@@ -93,7 +99,6 @@ pub fn run_collator(
 	let block_announce_validator = DelayedBlockAnnounceValidator::new();
 	let block_announce_validator_copy = block_announce_validator.clone();
 	let service = builder
-		.with_informant_prefix(format!("[{}] ", Color::Yellow.bold().paint("Parachain")))?
 		.with_finality_proof_provider(|client, backend| {
 			// GenesisAuthoritySetProvider is implemented for StorageAndProofProvider
 			let provider = client as Arc<dyn StorageAndProofProvider<_, _>>;
@@ -102,17 +107,17 @@ pub fn run_collator(
 		.with_block_announce_validator(|_client| Box::new(block_announce_validator_copy))?
 		.build_full()?;
 
-	let registry = service.prometheus_registry();
+	let registry = service.prometheus_registry.clone();
 
 	let proposer_factory = sc_basic_authorship::ProposerFactory::new(
-		service.client(),
-		service.transaction_pool(),
+		service.client.clone(),
+		service.transaction_pool.clone(),
 		registry.as_ref(),
 	);
 
-	let block_import = service.client();
-	let client = service.client();
-	let network = service.network();
+	let block_import = service.client.clone();
+	let client = service.client.clone();
+	let network = service.network.clone();
 	let announce_block = Arc::new(move |hash, data| network.announce_block(hash, data));
 	let builder = CollatorBuilder::new(
 		proposer_factory,
@@ -124,15 +129,14 @@ pub fn run_collator(
 		block_announce_validator,
 	);
 
-	let polkadot_future = polkadot_collator::start_collator(
-		builder,
-		id,
-		key,
-		polkadot_config,
-		Some(format!("[{}] ", Color::Blue.bold().paint("Relaychain"))),
-	)
-	.map(|_| ());
-	service.spawn_essential_task("polkadot", polkadot_future);
-
-	Ok(service)
+	polkadot_config.informant_output_format = OutputFormat {
+		enable_color: true,
+		prefix: format!("[{}] ", Color::Blue.bold().paint("Relaychain")),
+	};
+
+	let polkadot_future =
+		polkadot_collator::start_collator(builder, id, key, polkadot_config).map(|_| ());
+	service.task_manager.spawn_essential_handle().spawn("polkadot", polkadot_future);
+
+	Ok(service.task_manager)
 }
diff --git a/test/parachain/tests/integration_test.rs b/test/parachain/tests/integration_test.rs
index f8865bdbe6d..da2358428c0 100644
--- a/test/parachain/tests/integration_test.rs
+++ b/test/parachain/tests/integration_test.rs
@@ -24,8 +24,8 @@ use futures::{future::FutureExt, join, pin_mut, select};
 use jsonrpsee::{raw::RawClient, transport::http::HttpTransportClient};
 use polkadot_primitives::parachain::{Info, Scheduling};
 use polkadot_primitives::Hash as PHash;
-use polkadot_runtime::{Header, Runtime, SignedExtra, SignedPayload, IsCallable};
-use polkadot_runtime_common::{parachains, registrar, BlockHashCount, claims, TransactionCallFilter};
+use polkadot_runtime::{Header, Runtime, SignedExtra, SignedPayload};
+use polkadot_runtime_common::{parachains, registrar, BlockHashCount, claims};
 use serde_json::Value;
 use sp_arithmetic::traits::SaturatedConversion;
 use sp_runtime::generic;