diff --git a/Cargo.lock b/Cargo.lock
index e5648c89d9354..ac34452e31516 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -371,7 +371,7 @@ dependencies = [
 
 [[package]]
 name = "browser-utils"
-version = "2.0.0"
+version = "0.8.0"
 dependencies = [
  "clear_on_drop 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "console_error_panic_hook 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -386,7 +386,7 @@ dependencies = [
  "rand 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "sc-chain-spec 2.0.0",
  "sc-network 0.8.0",
- "sc-service 2.0.0",
+ "sc-service 0.8.0",
  "wasm-bindgen 0.2.57 (registry+https://github.com/rust-lang/crates.io-index)",
  "wasm-bindgen-futures 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1316,7 +1316,7 @@ dependencies = [
 
 [[package]]
 name = "frame-metadata"
-version = "2.0.0"
+version = "10.0.0"
 dependencies = [
  "parity-scale-codec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1329,7 +1329,7 @@ name = "frame-support"
 version = "2.0.0"
 dependencies = [
  "bitmask 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "frame-metadata 2.0.0",
+ "frame-metadata 10.0.0",
  "frame-support-procedural 2.0.0",
  "frame-system 2.0.0",
  "impl-trait-for-tuples 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1344,7 +1344,7 @@ dependencies = [
  "sp-inherents 2.0.0",
  "sp-io 2.0.0",
  "sp-runtime 2.0.0",
- "sp-state-machine 2.0.0",
+ "sp-state-machine 0.8.0",
  "sp-std 2.0.0",
  "tracing 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1391,7 +1391,7 @@ dependencies = [
  "sp-inherents 2.0.0",
  "sp-io 2.0.0",
  "sp-runtime 2.0.0",
- "sp-state-machine 2.0.0",
+ "sp-state-machine 0.8.0",
  "trybuild 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1713,7 +1713,7 @@ dependencies = [
 
 [[package]]
 name = "grafana-data-source"
-version = "2.0.0"
+version = "0.8.0"
 dependencies = [
  "async-std 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "chrono 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1735,7 +1735,7 @@ version = "2.0.0"
 dependencies = [
  "futures 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures-timer 2.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "grafana-data-source 2.0.0",
+ "grafana-data-source 0.8.0",
  "rand 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -3021,7 +3021,7 @@ dependencies = [
 name = "node-cli"
 version = "2.0.0"
 dependencies = [
- "browser-utils 2.0.0",
+ "browser-utils 0.8.0",
  "ctrlc 3.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "frame-support 2.0.0",
  "frame-system 2.0.0",
@@ -3033,7 +3033,7 @@ dependencies = [
  "node-primitives 2.0.0",
  "node-rpc 2.0.0",
  "node-runtime 2.0.0",
- "node-transaction-factory 2.0.0",
+ "node-transaction-factory 0.8.0",
  "pallet-authority-discovery 2.0.0",
  "pallet-balances 2.0.0",
  "pallet-contracts 2.0.0",
@@ -3043,20 +3043,20 @@ dependencies = [
  "pallet-transaction-payment 2.0.0",
  "parity-scale-codec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "sc-authority-discovery 2.0.0",
- "sc-basic-authority 2.0.0",
+ "sc-authority-discovery 0.8.0",
+ "sc-basic-authority 0.8.0",
  "sc-chain-spec 2.0.0",
- "sc-cli 2.0.0",
- "sc-client 2.0.0",
+ "sc-cli 0.8.0",
+ "sc-client 0.8.0",
  "sc-client-api 2.0.0",
- "sc-client-db 2.0.0",
+ "sc-client-db 0.8.0",
  "sc-consensus-babe 0.8.0",
- "sc-finality-grandpa 2.0.0",
+ "sc-finality-grandpa 0.8.0",
  "sc-keystore 2.0.0",
  "sc-network 0.8.0",
  "sc-offchain 2.0.0",
  "sc-rpc 2.0.0",
- "sc-service 2.0.0",
+ "sc-service 0.8.0",
  "sc-service-test 2.0.0",
  "sc-telemetry 2.0.0",
  "sc-transaction-pool 2.0.0",
@@ -3102,12 +3102,12 @@ dependencies = [
  "pallet-transaction-payment 2.0.0",
  "pallet-treasury 2.0.0",
  "parity-scale-codec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "sc-executor 2.0.0",
+ "sc-executor 0.8.0",
  "sp-application-crypto 2.0.0",
  "sp-core 2.0.0",
  "sp-io 2.0.0",
  "sp-runtime 2.0.0",
- "sp-state-machine 2.0.0",
+ "sp-state-machine 0.8.0",
  "sp-trie 2.0.0",
  "substrate-test-client 2.0.0",
  "trie-root 0.15.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3131,9 +3131,9 @@ dependencies = [
  "jsonrpc-core 14.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "node-primitives 2.0.0",
  "node-runtime 2.0.0",
- "pallet-contracts-rpc 2.0.0",
+ "pallet-contracts-rpc 0.8.0",
  "pallet-transaction-payment-rpc 2.0.0",
- "sc-client 2.0.0",
+ "sc-client 0.8.0",
  "sp-api 2.0.0",
  "sp-runtime 2.0.0",
  "sp-transaction-pool 2.0.0",
@@ -3169,7 +3169,7 @@ dependencies = [
  "pallet-balances 2.0.0",
  "pallet-collective 2.0.0",
  "pallet-contracts 2.0.0",
- "pallet-contracts-rpc-runtime-api 2.0.0",
+ "pallet-contracts-rpc-runtime-api 0.8.0",
  "pallet-democracy 2.0.0",
  "pallet-elections-phragmen 2.0.0",
  "pallet-finality-tracker 2.0.0",
@@ -3223,14 +3223,14 @@ dependencies = [
  "node-template-runtime 2.0.0",
  "parity-scale-codec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "sc-basic-authority 2.0.0",
- "sc-cli 2.0.0",
- "sc-client 2.0.0",
+ "sc-basic-authority 0.8.0",
+ "sc-cli 0.8.0",
+ "sc-client 0.8.0",
  "sc-consensus-aura 0.8.0",
- "sc-executor 2.0.0",
- "sc-finality-grandpa 2.0.0",
+ "sc-executor 0.8.0",
+ "sc-finality-grandpa 0.8.0",
  "sc-network 0.8.0",
- "sc-service 2.0.0",
+ "sc-service 0.8.0",
  "sc-transaction-pool 2.0.0",
  "sp-consensus 0.8.0",
  "sp-consensus-aura 0.8.0",
@@ -3298,8 +3298,8 @@ dependencies = [
  "pallet-transaction-payment 2.0.0",
  "pallet-treasury 2.0.0",
  "parity-scale-codec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "sc-client 2.0.0",
- "sc-executor 2.0.0",
+ "sc-client 0.8.0",
+ "sc-executor 0.8.0",
  "sp-core 2.0.0",
  "sp-io 2.0.0",
  "sp-keyring 2.0.0",
@@ -3310,14 +3310,14 @@ dependencies = [
 
 [[package]]
 name = "node-transaction-factory"
-version = "2.0.0"
+version = "0.8.0"
 dependencies = [
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-scale-codec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "sc-cli 2.0.0",
- "sc-client 2.0.0",
+ "sc-cli 0.8.0",
+ "sc-client 0.8.0",
  "sc-client-api 2.0.0",
- "sc-service 2.0.0",
+ "sc-service 0.8.0",
  "sp-api 2.0.0",
  "sp-block-builder 2.0.0",
  "sp-blockchain 2.0.0",
@@ -3616,7 +3616,7 @@ dependencies = [
  "sp-core 2.0.0",
  "sp-io 2.0.0",
  "sp-runtime 2.0.0",
- "sp-sandbox 2.0.0",
+ "sp-sandbox 0.8.0",
  "sp-std 2.0.0",
  "wabt 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "wasmi-validation 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3624,12 +3624,12 @@ dependencies = [
 
 [[package]]
 name = "pallet-contracts-rpc"
-version = "2.0.0"
+version = "0.8.0"
 dependencies = [
  "jsonrpc-core 14.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-core-client 14.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-derive 14.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "pallet-contracts-rpc-runtime-api 2.0.0",
+ "pallet-contracts-rpc-runtime-api 0.8.0",
  "parity-scale-codec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.44 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3642,7 +3642,7 @@ dependencies = [
 
 [[package]]
 name = "pallet-contracts-rpc-runtime-api"
-version = "2.0.0"
+version = "0.8.0"
 dependencies = [
  "parity-scale-codec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-api 2.0.0",
@@ -5009,7 +5009,7 @@ dependencies = [
 
 [[package]]
 name = "sc-authority-discovery"
-version = "2.0.0"
+version = "0.8.0"
 dependencies = [
  "bytes 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "derive_more 0.99.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -5038,14 +5038,14 @@ dependencies = [
 
 [[package]]
 name = "sc-basic-authority"
-version = "2.0.0"
+version = "0.8.0"
 dependencies = [
  "futures 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-scale-codec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "sc-block-builder 2.0.0",
- "sc-client 2.0.0",
+ "sc-block-builder 0.8.0",
+ "sc-client 0.8.0",
  "sc-client-api 2.0.0",
  "sc-telemetry 2.0.0",
  "sc-transaction-pool 2.0.0",
@@ -5062,7 +5062,7 @@ dependencies = [
 
 [[package]]
 name = "sc-block-builder"
-version = "2.0.0"
+version = "0.8.0"
 dependencies = [
  "parity-scale-codec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "sc-client-api 2.0.0",
@@ -5072,7 +5072,7 @@ dependencies = [
  "sp-consensus 0.8.0",
  "sp-core 2.0.0",
  "sp-runtime 2.0.0",
- "sp-state-machine 2.0.0",
+ "sp-state-machine 0.8.0",
 ]
 
 [[package]]
@@ -5101,7 +5101,7 @@ dependencies = [
 
 [[package]]
 name = "sc-cli"
-version = "2.0.0"
+version = "0.8.0"
 dependencies = [
  "ansi_term 0.12.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "app_dirs 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -5118,7 +5118,7 @@ dependencies = [
  "rpassword 4.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "sc-client-api 2.0.0",
  "sc-network 0.8.0",
- "sc-service 2.0.0",
+ "sc-service 0.8.0",
  "sc-telemetry 2.0.0",
  "sc-tracing 2.0.0",
  "serde_json 1.0.44 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -5127,7 +5127,7 @@ dependencies = [
  "sp-keyring 2.0.0",
  "sp-panic-handler 2.0.0",
  "sp-runtime 2.0.0",
- "sp-state-machine 2.0.0",
+ "sp-state-machine 0.8.0",
  "structopt 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -5136,7 +5136,7 @@ dependencies = [
 
 [[package]]
 name = "sc-client"
-version = "2.0.0"
+version = "0.8.0"
 dependencies = [
  "derive_more 0.99.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -5149,20 +5149,20 @@ dependencies = [
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-scale-codec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "sc-block-builder 2.0.0",
+ "sc-block-builder 0.8.0",
  "sc-client-api 2.0.0",
- "sc-executor 2.0.0",
+ "sc-executor 0.8.0",
  "sc-telemetry 2.0.0",
  "sp-api 2.0.0",
  "sp-blockchain 2.0.0",
  "sp-consensus 0.8.0",
  "sp-core 2.0.0",
- "sp-externalities 2.0.0",
+ "sp-externalities 0.8.0",
  "sp-inherents 2.0.0",
  "sp-keyring 2.0.0",
  "sp-panic-handler 2.0.0",
  "sp-runtime 2.0.0",
- "sp-state-machine 2.0.0",
+ "sp-state-machine 0.8.0",
  "sp-std 2.0.0",
  "sp-trie 2.0.0",
  "sp-version 2.0.0",
@@ -5184,17 +5184,17 @@ dependencies = [
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-scale-codec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "sc-executor 2.0.0",
+ "sc-executor 0.8.0",
  "sc-telemetry 2.0.0",
  "sp-api 2.0.0",
  "sp-blockchain 2.0.0",
  "sp-consensus 0.8.0",
  "sp-core 2.0.0",
- "sp-externalities 2.0.0",
+ "sp-externalities 0.8.0",
  "sp-inherents 2.0.0",
  "sp-keyring 2.0.0",
  "sp-runtime 2.0.0",
- "sp-state-machine 2.0.0",
+ "sp-state-machine 0.8.0",
  "sp-std 2.0.0",
  "sp-test-primitives 2.0.0",
  "sp-transaction-pool 2.0.0",
@@ -5204,7 +5204,7 @@ dependencies = [
 
 [[package]]
 name = "sc-client-db"
-version = "2.0.0"
+version = "0.8.0"
 dependencies = [
  "env_logger 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "hash-db 0.15.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -5217,16 +5217,16 @@ dependencies = [
  "parity-util-mem 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "quickcheck 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "sc-client 2.0.0",
+ "sc-client 0.8.0",
  "sc-client-api 2.0.0",
- "sc-executor 2.0.0",
- "sc-state-db 2.0.0",
+ "sc-executor 0.8.0",
+ "sc-state-db 0.8.0",
  "sp-blockchain 2.0.0",
  "sp-consensus 0.8.0",
  "sp-core 2.0.0",
  "sp-keyring 2.0.0",
  "sp-runtime 2.0.0",
- "sp-state-machine 2.0.0",
+ "sp-state-machine 0.8.0",
  "sp-trie 2.0.0",
  "substrate-test-runtime-client 2.0.0",
 ]
@@ -5243,14 +5243,14 @@ dependencies = [
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-scale-codec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "sc-client 2.0.0",
+ "sc-client 0.8.0",
  "sc-client-api 2.0.0",
  "sc-consensus-slots 0.8.0",
- "sc-executor 2.0.0",
+ "sc-executor 0.8.0",
  "sc-keystore 2.0.0",
  "sc-network 0.8.0",
- "sc-network-test 2.0.0",
- "sc-service 2.0.0",
+ "sc-network-test 0.8.0",
+ "sc-service 0.8.0",
  "sc-telemetry 2.0.0",
  "sp-api 2.0.0",
  "sp-application-crypto 2.0.0",
@@ -5289,16 +5289,16 @@ dependencies = [
  "parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "pdqselect 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "sc-block-builder 2.0.0",
- "sc-client 2.0.0",
+ "sc-block-builder 0.8.0",
+ "sc-client 0.8.0",
  "sc-client-api 2.0.0",
  "sc-consensus-slots 0.8.0",
  "sc-consensus-uncles 0.8.0",
- "sc-executor 2.0.0",
+ "sc-executor 0.8.0",
  "sc-keystore 2.0.0",
  "sc-network 0.8.0",
- "sc-network-test 2.0.0",
- "sc-service 2.0.0",
+ "sc-network-test 0.8.0",
+ "sc-service 0.8.0",
  "sc-telemetry 2.0.0",
  "schnorrkel 0.8.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-api 2.0.0",
@@ -5356,7 +5356,7 @@ dependencies = [
  "sp-core 2.0.0",
  "sp-inherents 2.0.0",
  "sp-runtime 2.0.0",
- "sp-state-machine 2.0.0",
+ "sp-state-machine 0.8.0",
  "substrate-test-runtime-client 2.0.0",
 ]
 
@@ -5375,7 +5375,7 @@ dependencies = [
 
 [[package]]
 name = "sc-executor"
-version = "2.0.0"
+version = "0.8.0"
 dependencies = [
  "assert_matches 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "derive_more 0.99.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -5386,17 +5386,17 @@ dependencies = [
  "parity-scale-codec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-wasm 0.41.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "sc-executor-common 2.0.0",
- "sc-executor-wasmi 2.0.0",
- "sc-executor-wasmtime 2.0.0",
+ "sc-executor-common 0.8.0",
+ "sc-executor-wasmi 0.8.0",
+ "sc-executor-wasmtime 0.8.0",
  "sc-runtime-test 2.0.0",
  "sp-core 2.0.0",
- "sp-externalities 2.0.0",
+ "sp-externalities 0.8.0",
  "sp-io 2.0.0",
  "sp-panic-handler 2.0.0",
  "sp-runtime-interface 2.0.0",
  "sp-serializer 2.0.0",
- "sp-state-machine 2.0.0",
+ "sp-state-machine 0.8.0",
  "sp-trie 2.0.0",
  "sp-version 2.0.0",
  "sp-wasm-interface 2.0.0",
@@ -5408,7 +5408,7 @@ dependencies = [
 
 [[package]]
 name = "sc-executor-common"
-version = "2.0.0"
+version = "0.8.0"
 dependencies = [
  "derive_more 0.99.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -5422,14 +5422,14 @@ dependencies = [
 
 [[package]]
 name = "sc-executor-wasmi"
-version = "2.0.0"
+version = "0.8.0"
 dependencies = [
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-scale-codec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-wasm 0.41.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "sc-executor-common 2.0.0",
+ "sc-executor-common 0.8.0",
  "sp-core 2.0.0",
- "sp-externalities 2.0.0",
+ "sp-externalities 0.8.0",
  "sp-runtime-interface 2.0.0",
  "sp-wasm-interface 2.0.0",
  "wasmi 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -5437,7 +5437,7 @@ dependencies = [
 
 [[package]]
 name = "sc-executor-wasmtime"
-version = "2.0.0"
+version = "0.8.0"
 dependencies = [
  "assert_matches 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "cranelift-codegen 0.50.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -5448,9 +5448,9 @@ dependencies = [
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-scale-codec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-wasm 0.41.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "sc-executor-common 2.0.0",
+ "sc-executor-common 0.8.0",
  "sp-core 2.0.0",
- "sp-externalities 2.0.0",
+ "sp-externalities 0.8.0",
  "sp-runtime-interface 2.0.0",
  "sp-wasm-interface 2.0.0",
  "wasmi 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -5461,7 +5461,7 @@ dependencies = [
 
 [[package]]
 name = "sc-finality-grandpa"
-version = "2.0.0"
+version = "0.8.0"
 dependencies = [
  "env_logger 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "finality-grandpa 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -5473,12 +5473,12 @@ dependencies = [
  "parity-scale-codec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "sc-client 2.0.0",
+ "sc-client 0.8.0",
  "sc-client-api 2.0.0",
  "sc-keystore 2.0.0",
  "sc-network 0.8.0",
- "sc-network-gossip 2.0.0",
- "sc-network-test 2.0.0",
+ "sc-network-gossip 0.8.0",
+ "sc-network-test 0.8.0",
  "sc-telemetry 2.0.0",
  "serde_json 1.0.44 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-api 2.0.0",
@@ -5491,7 +5491,7 @@ dependencies = [
  "sp-inherents 2.0.0",
  "sp-keyring 2.0.0",
  "sp-runtime 2.0.0",
- "sp-state-machine 2.0.0",
+ "sp-state-machine 0.8.0",
  "substrate-test-runtime-client 2.0.0",
  "tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio 0.1.22 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -5537,8 +5537,8 @@ dependencies = [
  "quickcheck 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hex 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "sc-block-builder 2.0.0",
- "sc-client 2.0.0",
+ "sc-block-builder 0.8.0",
+ "sc-client 0.8.0",
  "sc-client-api 2.0.0",
  "sc-peerset 2.0.0",
  "serde 1.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -5564,7 +5564,7 @@ dependencies = [
 
 [[package]]
 name = "sc-network-gossip"
-version = "2.0.0"
+version = "0.8.0"
 dependencies = [
  "futures 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -5579,7 +5579,7 @@ dependencies = [
 
 [[package]]
 name = "sc-network-test"
-version = "2.0.0"
+version = "0.8.0"
 dependencies = [
  "env_logger 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -5589,8 +5589,8 @@ dependencies = [
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "sc-block-builder 2.0.0",
- "sc-client 2.0.0",
+ "sc-block-builder 0.8.0",
+ "sc-client 0.8.0",
  "sc-client-api 2.0.0",
  "sc-network 0.8.0",
  "sp-blockchain 2.0.0",
@@ -5622,7 +5622,7 @@ dependencies = [
  "parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "sc-client-api 2.0.0",
- "sc-client-db 2.0.0",
+ "sc-client-db 0.8.0",
  "sc-keystore 2.0.0",
  "sc-network 0.8.0",
  "sc-transaction-pool 2.0.0",
@@ -5661,12 +5661,12 @@ dependencies = [
  "parity-scale-codec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-hex 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "sc-client 2.0.0",
+ "sc-client 0.8.0",
  "sc-client-api 2.0.0",
- "sc-executor 2.0.0",
+ "sc-executor 0.8.0",
  "sc-keystore 2.0.0",
  "sc-network 0.8.0",
- "sc-rpc-api 2.0.0",
+ "sc-rpc-api 0.8.0",
  "sc-transaction-pool 2.0.0",
  "serde_json 1.0.44 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-api 2.0.0",
@@ -5676,7 +5676,7 @@ dependencies = [
  "sp-rpc 2.0.0",
  "sp-runtime 2.0.0",
  "sp-session 2.0.0",
- "sp-state-machine 2.0.0",
+ "sp-state-machine 0.8.0",
  "sp-transaction-pool 2.0.0",
  "sp-version 2.0.0",
  "substrate-test-runtime-client 2.0.0",
@@ -5685,7 +5685,7 @@ dependencies = [
 
 [[package]]
 name = "sc-rpc-api"
-version = "2.0.0"
+version = "0.8.0"
 dependencies = [
  "derive_more 0.99.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -5725,32 +5725,32 @@ dependencies = [
  "sp-core 2.0.0",
  "sp-io 2.0.0",
  "sp-runtime 2.0.0",
- "sp-sandbox 2.0.0",
+ "sp-sandbox 0.8.0",
  "sp-std 2.0.0",
  "substrate-wasm-builder-runner 1.0.4",
 ]
 
 [[package]]
 name = "sc-service"
-version = "2.0.0"
+version = "0.8.0"
 dependencies = [
  "derive_more 0.99.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "exit-future 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures-timer 2.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "grafana-data-source 2.0.0",
+ "grafana-data-source 0.8.0",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-multiaddr 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-scale-codec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "sc-chain-spec 2.0.0",
- "sc-client 2.0.0",
+ "sc-client 0.8.0",
  "sc-client-api 2.0.0",
- "sc-client-db 2.0.0",
- "sc-executor 2.0.0",
- "sc-finality-grandpa 2.0.0",
+ "sc-client-db 0.8.0",
+ "sc-executor 0.8.0",
+ "sc-finality-grandpa 0.8.0",
  "sc-keystore 2.0.0",
  "sc-network 0.8.0",
  "sc-offchain 2.0.0",
@@ -5790,9 +5790,9 @@ dependencies = [
  "futures 0.1.29 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "sc-client 2.0.0",
+ "sc-client 0.8.0",
  "sc-network 0.8.0",
- "sc-service 2.0.0",
+ "sc-service 0.8.0",
  "sp-consensus 0.8.0",
  "sp-core 2.0.0",
  "sp-runtime 2.0.0",
@@ -5803,7 +5803,7 @@ dependencies = [
 
 [[package]]
 name = "sc-state-db"
-version = "2.0.0"
+version = "0.8.0"
 dependencies = [
  "env_logger 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -5837,7 +5837,7 @@ name = "sc-tracing"
 version = "2.0.0"
 dependencies = [
  "erased-serde 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "grafana-data-source 2.0.0",
+ "grafana-data-source 0.8.0",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "sc-telemetry 2.0.0",
@@ -6183,7 +6183,7 @@ dependencies = [
  "sp-api-proc-macro 2.0.0",
  "sp-core 2.0.0",
  "sp-runtime 2.0.0",
- "sp-state-machine 2.0.0",
+ "sp-state-machine 0.8.0",
  "sp-std 2.0.0",
  "sp-test-primitives 2.0.0",
  "sp-version 2.0.0",
@@ -6211,7 +6211,7 @@ dependencies = [
  "sp-blockchain 2.0.0",
  "sp-consensus 0.8.0",
  "sp-runtime 2.0.0",
- "sp-state-machine 2.0.0",
+ "sp-state-machine 0.8.0",
  "sp-version 2.0.0",
  "substrate-test-runtime-client 2.0.0",
  "trybuild 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -6298,7 +6298,7 @@ dependencies = [
  "sp-block-builder 2.0.0",
  "sp-consensus 0.8.0",
  "sp-runtime 2.0.0",
- "sp-state-machine 2.0.0",
+ "sp-state-machine 0.8.0",
 ]
 
 [[package]]
@@ -6315,7 +6315,7 @@ dependencies = [
  "sp-core 2.0.0",
  "sp-inherents 2.0.0",
  "sp-runtime 2.0.0",
- "sp-state-machine 2.0.0",
+ "sp-state-machine 0.8.0",
  "sp-std 2.0.0",
  "sp-test-primitives 2.0.0",
  "sp-version 2.0.0",
@@ -6390,7 +6390,7 @@ dependencies = [
  "serde_json 1.0.44 (registry+https://github.com/rust-lang/crates.io-index)",
  "sha2 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-debug-derive 2.0.0",
- "sp-externalities 2.0.0",
+ "sp-externalities 0.8.0",
  "sp-runtime-interface 2.0.0",
  "sp-serializer 2.0.0",
  "sp-std 2.0.0",
@@ -6414,7 +6414,7 @@ dependencies = [
 
 [[package]]
 name = "sp-externalities"
-version = "2.0.0"
+version = "0.8.0"
 dependencies = [
  "environmental 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-std 2.0.0",
@@ -6462,9 +6462,9 @@ dependencies = [
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-scale-codec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-core 2.0.0",
- "sp-externalities 2.0.0",
+ "sp-externalities 0.8.0",
  "sp-runtime-interface 2.0.0",
- "sp-state-machine 2.0.0",
+ "sp-state-machine 0.8.0",
  "sp-std 2.0.0",
  "sp-trie 2.0.0",
 ]
@@ -6544,11 +6544,11 @@ dependencies = [
  "primitive-types 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustversion 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-core 2.0.0",
- "sp-externalities 2.0.0",
+ "sp-externalities 0.8.0",
  "sp-io 2.0.0",
  "sp-runtime-interface-proc-macro 2.0.0",
  "sp-runtime-interface-test-wasm 2.0.0",
- "sp-state-machine 2.0.0",
+ "sp-state-machine 0.8.0",
  "sp-std 2.0.0",
  "sp-wasm-interface 2.0.0",
  "static_assertions 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -6570,12 +6570,12 @@ dependencies = [
 name = "sp-runtime-interface-test"
 version = "2.0.0"
 dependencies = [
- "sc-executor 2.0.0",
+ "sc-executor 0.8.0",
  "sp-core 2.0.0",
  "sp-io 2.0.0",
  "sp-runtime-interface 2.0.0",
  "sp-runtime-interface-test-wasm 2.0.0",
- "sp-state-machine 2.0.0",
+ "sp-state-machine 0.8.0",
 ]
 
 [[package]]
@@ -6591,7 +6591,7 @@ dependencies = [
 
 [[package]]
 name = "sp-sandbox"
-version = "2.0.0"
+version = "0.8.0"
 dependencies = [
  "assert_matches 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-scale-codec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -6630,7 +6630,7 @@ dependencies = [
 
 [[package]]
 name = "sp-state-machine"
-version = "2.0.0"
+version = "0.8.0"
 dependencies = [
  "hash-db 0.15.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "hex-literal 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -6640,7 +6640,7 @@ dependencies = [
  "parking_lot 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-core 2.0.0",
- "sp-externalities 2.0.0",
+ "sp-externalities 0.8.0",
  "sp-panic-handler 2.0.0",
  "sp-trie 2.0.0",
  "trie-db 0.18.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -6870,7 +6870,7 @@ dependencies = [
  "jsonrpc-client-transports 14.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc-core 14.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-scale-codec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "sc-rpc-api 2.0.0",
+ "sc-rpc-api 0.8.0",
  "serde 1.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-storage 2.0.0",
  "tokio 0.1.22 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -6888,7 +6888,7 @@ dependencies = [
  "jsonrpc-derive 14.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-scale-codec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "sc-client 2.0.0",
+ "sc-client 0.8.0",
  "sc-transaction-pool 2.0.0",
  "serde 1.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-api 2.0.0",
@@ -6906,16 +6906,16 @@ dependencies = [
  "futures 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "hash-db 0.15.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-scale-codec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "sc-client 2.0.0",
+ "sc-client 0.8.0",
  "sc-client-api 2.0.0",
- "sc-client-db 2.0.0",
- "sc-executor 2.0.0",
+ "sc-client-db 0.8.0",
+ "sc-executor 0.8.0",
  "sp-blockchain 2.0.0",
  "sp-consensus 0.8.0",
  "sp-core 2.0.0",
  "sp-keyring 2.0.0",
  "sp-runtime 2.0.0",
- "sp-state-machine 2.0.0",
+ "sp-state-machine 0.8.0",
 ]
 
 [[package]]
@@ -6932,8 +6932,8 @@ dependencies = [
  "pallet-babe 2.0.0",
  "pallet-timestamp 2.0.0",
  "parity-scale-codec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "sc-client 2.0.0",
- "sc-executor 2.0.0",
+ "sc-client 0.8.0",
+ "sc-executor 0.8.0",
  "serde 1.0.103 (registry+https://github.com/rust-lang/crates.io-index)",
  "sp-api 2.0.0",
  "sp-application-crypto 2.0.0",
@@ -6948,7 +6948,7 @@ dependencies = [
  "sp-runtime 2.0.0",
  "sp-runtime-interface 2.0.0",
  "sp-session 2.0.0",
- "sp-state-machine 2.0.0",
+ "sp-state-machine 0.8.0",
  "sp-std 2.0.0",
  "sp-transaction-pool 2.0.0",
  "sp-trie 2.0.0",
@@ -6964,8 +6964,8 @@ version = "2.0.0"
 dependencies = [
  "futures 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-scale-codec 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "sc-block-builder 2.0.0",
- "sc-client 2.0.0",
+ "sc-block-builder 0.8.0",
+ "sc-client 0.8.0",
  "sc-client-api 2.0.0",
  "sp-api 2.0.0",
  "sp-blockchain 2.0.0",
diff --git a/bin/node-template/Cargo.toml b/bin/node-template/Cargo.toml
index 0333e887ec4b8..e18bbd3e1d46a 100644
--- a/bin/node-template/Cargo.toml
+++ b/bin/node-template/Cargo.toml
@@ -18,10 +18,10 @@ parking_lot = "0.9.0"
 codec = { package = "parity-scale-codec", version = "1.0.0" }
 trie-root = "0.15.2"
 sp-io = { version = "2.0.0", path = "../../primitives/io" }
-sc-cli = { version = "2.0.0", path = "../../client/cli" }
+sc-cli = { version = "0.8.0", path = "../../client/cli" }
 sp-core = { version = "2.0.0", path = "../../primitives/core" }
-sc-executor = { version = "2.0.0", path = "../../client/executor" }
-sc-service = { version = "2.0.0", path = "../../client/service" }
+sc-executor = { version = "0.8", path = "../../client/executor" }
+sc-service = { version = "0.8", path = "../../client/service" }
 sp-inherents = { version = "2.0.0", path = "../../primitives/inherents" }
 sc-transaction-pool = { version = "2.0.0", path = "../../client/transaction-pool" }
 sp-transaction-pool = { version = "2.0.0", path = "../../primitives/transaction-pool" }
@@ -29,9 +29,9 @@ sc-network = { version = "0.8", path = "../../client/network" }
 sc-consensus-aura = { version = "0.8", path = "../../client/consensus/aura" }
 sp-consensus-aura = { version = "0.8", path = "../../primitives/consensus/aura" }
 sp-consensus = { version = "0.8", path = "../../primitives/consensus/common" }
-grandpa = { version = "2.0.0", package = "sc-finality-grandpa", path = "../../client/finality-grandpa" }
+grandpa = { version = "0.8", package = "sc-finality-grandpa", path = "../../client/finality-grandpa" }
 grandpa-primitives = { version = "2.0.0", package = "sp-finality-grandpa", path = "../../primitives/finality-grandpa" }
-sc-client = { version = "2.0.0", path = "../../client/" }
+sc-client = { version = "0.8", path = "../../client/" }
 node-template-runtime = { version = "2.0.0", path = "runtime" }
 sp-runtime = { version = "2.0.0", path = "../../primitives/runtime" }
 sc-basic-authority = { path  = "../../client/basic-authorship" }
diff --git a/bin/node/cli/Cargo.toml b/bin/node/cli/Cargo.toml
index ec54f5b374873..6c2ccb49b09f2 100644
--- a/bin/node/cli/Cargo.toml
+++ b/bin/node/cli/Cargo.toml
@@ -47,20 +47,20 @@ sp-consensus = { version = "0.8", path = "../../../primitives/consensus/common"
 
 # client dependencies
 sc-client-api = { version = "2.0.0", path = "../../../client/api" }
-sc-client = { version = "2.0.0", path = "../../../client/" }
+sc-client = { version = "0.8", path = "../../../client/" }
 sc-chain-spec = { version = "2.0.0", path = "../../../client/chain-spec" }
 sc-transaction-pool = { version = "2.0.0", path = "../../../client/transaction-pool" }
 sp-transaction-pool = { version = "2.0.0", path = "../../../primitives/transaction-pool" }
 sc-network = { version = "0.8", path = "../../../client/network" }
 sc-consensus-babe = { version = "0.8", path = "../../../client/consensus/babe" }
-grandpa = { version = "2.0.0", package = "sc-finality-grandpa", path = "../../../client/finality-grandpa" }
-sc-client-db = { version = "2.0.0", default-features = false, path = "../../../client/db" }
+grandpa = { version = "0.8", package = "sc-finality-grandpa", path = "../../../client/finality-grandpa" }
+sc-client-db = { version = "0.8", default-features = false, path = "../../../client/db" }
 sc-offchain = { version = "2.0.0", path = "../../../client/offchain" }
 sc-rpc = { version = "2.0.0", path = "../../../client/rpc" }
-sc-basic-authority = { version = "2.0.0", path = "../../../client/basic-authorship" }
-sc-service = { version = "2.0.0", default-features = false, path = "../../../client/service" }
+sc-basic-authority = { version = "0.8", path = "../../../client/basic-authorship" }
+sc-service = { version = "0.8", default-features = false, path = "../../../client/service" }
 sc-telemetry = { version = "2.0.0", path = "../../../client/telemetry" }
-sc-authority-discovery = { version = "2.0.0",  path = "../../../client/authority-discovery" }
+sc-authority-discovery = { version = "0.8",  path = "../../../client/authority-discovery" }
 
 # frame dependencies
 pallet-indices = { version = "2.0.0", path = "../../../frame/indices" }
@@ -81,9 +81,9 @@ node-executor = { version = "2.0.0", path = "../executor" }
 
 # CLI-specific dependencies
 tokio = { version = "0.2", features = ["rt-threaded"], optional = true }
-sc-cli = { version = "2.0.0", optional = true, path = "../../../client/cli" }
+sc-cli = { version = "0.8.0", optional = true, path = "../../../client/cli" }
 ctrlc = { version = "3.1.3", features = ["termination"], optional = true }
-node-transaction-factory = { version = "2.0.0", optional = true, path = "../transaction-factory" }
+node-transaction-factory = { version = "0.8.0", optional = true, path = "../transaction-factory" }
 
 # WASM-specific dependencies
 wasm-bindgen = { version = "0.2.57", optional = true }
@@ -98,7 +98,7 @@ futures = "0.3.1"
 tempfile = "3.1.0"
 
 [build-dependencies]
-sc-cli = { version = "2.0.0", package = "sc-cli", path = "../../../client/cli" }
+sc-cli = { version = "0.8.0", package = "sc-cli", path = "../../../client/cli" }
 build-script-utils = { version = "2.0.0", package = "substrate-build-script-utils", path = "../../../utils/build-script-utils" }
 structopt = "=0.3.7"
 vergen = "3.0.4"
diff --git a/bin/node/executor/Cargo.toml b/bin/node/executor/Cargo.toml
index 3aa7ad780a8db..6e624e09d28dd 100644
--- a/bin/node/executor/Cargo.toml
+++ b/bin/node/executor/Cargo.toml
@@ -9,10 +9,10 @@ edition = "2018"
 codec = { package = "parity-scale-codec", version = "1.0.0" }
 node-primitives = { version = "2.0.0", path = "../primitives" }
 node-runtime = { version = "2.0.0", path = "../runtime" }
-sc-executor = { version = "2.0.0", path = "../../../client/executor" }
+sc-executor = { version = "0.8", path = "../../../client/executor" }
 sp-core = { version = "2.0.0", path = "../../../primitives/core" }
 sp-io = { version = "2.0.0", path = "../../../primitives/io" }
-sp-state-machine = { version = "2.0.0", path = "../../../primitives/state-machine" }
+sp-state-machine = { version = "0.8", path = "../../../primitives/state-machine" }
 sp-trie = { version = "2.0.0", path = "../../../primitives/trie" }
 trie-root = "0.15.2"
 
diff --git a/bin/node/rpc/Cargo.toml b/bin/node/rpc/Cargo.toml
index 8c96542a8e6bd..174b2875166c2 100644
--- a/bin/node/rpc/Cargo.toml
+++ b/bin/node/rpc/Cargo.toml
@@ -5,13 +5,13 @@ authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
 [dependencies]
-sc-client = { version = "2.0.0", path = "../../../client/" }
+sc-client = { version = "0.8", path = "../../../client/" }
 jsonrpc-core = "14.0.3"
 node-primitives = { version = "2.0.0", path = "../primitives" }
 node-runtime = { version = "2.0.0", path = "../runtime" }
 sp-runtime = { version = "2.0.0", path = "../../../primitives/runtime" }
 sp-api = { version = "2.0.0", path = "../../../primitives/api" }
-pallet-contracts-rpc = { version = "2.0.0", path = "../../../frame/contracts/rpc/" }
+pallet-contracts-rpc = { version = "0.8.0", path = "../../../frame/contracts/rpc/" }
 pallet-transaction-payment-rpc = { version = "2.0.0", path = "../../../frame/transaction-payment/rpc/" }
 substrate-frame-rpc-system = { version = "2.0.0", path = "../../../utils/frame/rpc/system" }
 sp-transaction-pool = { version = "2.0.0", path = "../../../primitives/transaction-pool" }
diff --git a/bin/node/runtime/Cargo.toml b/bin/node/runtime/Cargo.toml
index c434c72120271..cfa895c976762 100644
--- a/bin/node/runtime/Cargo.toml
+++ b/bin/node/runtime/Cargo.toml
@@ -41,7 +41,7 @@ pallet-babe = { version = "2.0.0", default-features = false, path = "../../../fr
 pallet-balances = { version = "2.0.0", default-features = false, path = "../../../frame/balances" }
 pallet-collective = { version = "2.0.0", default-features = false, path = "../../../frame/collective" }
 pallet-contracts = { version = "2.0.0", default-features = false, path = "../../../frame/contracts" }
-pallet-contracts-rpc-runtime-api = { version = "2.0.0", default-features = false, path = "../../../frame/contracts/rpc/runtime-api/" }
+pallet-contracts-rpc-runtime-api = { version = "0.8.0", default-features = false, path = "../../../frame/contracts/rpc/runtime-api/" }
 pallet-democracy = { version = "2.0.0", default-features = false, path = "../../../frame/democracy" }
 pallet-elections-phragmen = { version = "2.0.0", default-features = false, path = "../../../frame/elections-phragmen" }
 pallet-finality-tracker = { version = "2.0.0", default-features = false, path = "../../../frame/finality-tracker" }
diff --git a/bin/node/testing/Cargo.toml b/bin/node/testing/Cargo.toml
index 4449c7bd22d47..2c868c5906a59 100644
--- a/bin/node/testing/Cargo.toml
+++ b/bin/node/testing/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2018"
 
 [dependencies]
 pallet-balances = { version = "2.0.0", path = "../../../frame/balances" }
-sc-client = { version = "2.0.0", path = "../../../client/" }
+sc-client = { version = "0.8", path = "../../../client/" }
 codec = { package = "parity-scale-codec", version = "1.0.0" }
 pallet-contracts = { version = "2.0.0", path = "../../../frame/contracts" }
 pallet-grandpa = { version = "2.0.0", path = "../../../frame/grandpa" }
@@ -22,7 +22,7 @@ frame-support = { version = "2.0.0", path = "../../../frame/support" }
 pallet-session = { version = "2.0.0", path = "../../../frame/session" }
 sp-runtime = { version = "2.0.0", path = "../../../primitives/runtime" }
 pallet-staking = { version = "2.0.0", path = "../../../frame/staking" }
-sc-executor = { version = "2.0.0", path = "../../../client/executor" }
+sc-executor = { version = "0.8", path = "../../../client/executor" }
 frame-system = { version = "2.0.0", path = "../../../frame/system" }
 substrate-test-client = { version = "2.0.0", path = "../../../test-utils/client" }
 pallet-timestamp = { version = "2.0.0", path = "../../../frame/timestamp" }
diff --git a/bin/node/transaction-factory/Cargo.toml b/bin/node/transaction-factory/Cargo.toml
index 8b10e10f41f81..f32a3c23e0e01 100644
--- a/bin/node/transaction-factory/Cargo.toml
+++ b/bin/node/transaction-factory/Cargo.toml
@@ -1,19 +1,19 @@
 [package]
 name = "node-transaction-factory"
-version = "2.0.0"
+version = "0.8.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
 [dependencies]
 sp-block-builder = { version = "2.0.0", path = "../../../primitives/block-builder" }
-sc-cli = { version = "2.0.0", path = "../../../client/cli" }
+sc-cli = { version = "0.8.0", path = "../../../client/cli" }
 sc-client-api = { version = "2.0.0", path = "../../../client/api" }
-sc-client = { version = "2.0.0", path = "../../../client" }
+sc-client = { version = "0.8", path = "../../../client" }
 codec = { package = "parity-scale-codec", version = "1.0.0", features = ["derive"] }
 sp-consensus = { version = "0.8", path = "../../../primitives/consensus/common" }
 log = "0.4.8"
 sp-core = { version = "2.0.0", path = "../../../primitives/core" }
 sp-api = { version = "2.0.0", path = "../../../primitives/api" }
 sp-runtime = { version = "2.0.0", path = "../../../primitives/runtime" }
-sc-service = { version = "2.0.0", path = "../../../client/service" }
+sc-service = { version = "0.8", path = "../../../client/service" }
 sp-blockchain = { version = "2.0.0", path = "../../../primitives/blockchain" }
diff --git a/client/Cargo.toml b/client/Cargo.toml
index eaddd9f3dcfe6..7413fc23f9e2c 100644
--- a/client/Cargo.toml
+++ b/client/Cargo.toml
@@ -1,17 +1,17 @@
 [package]
 name = "sc-client"
-version = "2.0.0"
+version = "0.8.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
 [dependencies]
-sc-block-builder = { version = "2.0.0", path = "block-builder" }
+sc-block-builder = { version = "0.8", path = "block-builder" }
 sc-client-api = { version = "2.0.0", path = "api" }
 codec = { package = "parity-scale-codec", version = "1.0.0", features = ["derive"] }
 sp-consensus = { version = "0.8", path = "../primitives/consensus/common" }
 derive_more = { version = "0.99.2" }
-sc-executor = { version = "2.0.0", path = "executor" }
-sp-externalities = { version = "2.0.0", path = "../primitives/externalities" }
+sc-executor = { version = "0.8", path = "executor" }
+sp-externalities = { version = "0.8.0", path = "../primitives/externalities" }
 fnv = { version = "1.0.6" }
 futures = { version = "0.3.1", features = ["compat"] }
 hash-db = { version = "0.15.2" }
@@ -27,7 +27,7 @@ sp-version = { version = "2.0.0", path = "../primitives/version" }
 sp-api = { version = "2.0.0", path = "../primitives/api" }
 sp-runtime = { version = "2.0.0", path = "../primitives/runtime" }
 sp-blockchain = { version = "2.0.0", path = "../primitives/blockchain" }
-sp-state-machine = { version = "2.0.0", path = "../primitives/state-machine" }
+sp-state-machine = { version = "0.8", path = "../primitives/state-machine" }
 sc-telemetry = { version = "2.0.0", path = "telemetry" }
 sp-trie = { version = "2.0.0", path = "../primitives/trie" }
 tracing = "0.1.10"
diff --git a/client/api/Cargo.toml b/client/api/Cargo.toml
index 36360a6fb8d20..651ee1434f7fc 100644
--- a/client/api/Cargo.toml
+++ b/client/api/Cargo.toml
@@ -8,8 +8,8 @@ edition = "2018"
 codec = { package = "parity-scale-codec", version = "1.0.0", default-features = false, features = ["derive"] }
 sp-consensus = { version = "0.8", path = "../../primitives/consensus/common" }
 derive_more = { version = "0.99.2" }
-sc-executor = { version = "2.0.0", path = "../executor" }
-sp-externalities = { version = "2.0.0", path = "../../primitives/externalities" }
+sc-executor = { version = "0.8", path = "../executor" }
+sp-externalities = { version = "0.8.0", path = "../../primitives/externalities" }
 fnv = { version = "1.0.6" }
 futures = { version = "0.3.1" }
 hash-db = { version = "0.15.2", default-features = false }
@@ -25,7 +25,7 @@ sp-std = { version = "2.0.0", default-features = false, path = "../../primitives
 sp-version = { version = "2.0.0", default-features = false, path = "../../primitives/version" }
 sp-api = { version = "2.0.0", path = "../../primitives/api" }
 sp-runtime = { version = "2.0.0", default-features = false, path = "../../primitives/runtime" }
-sp-state-machine = { version = "2.0.0", path = "../../primitives/state-machine" }
+sp-state-machine = { version = "0.8", path = "../../primitives/state-machine" }
 sc-telemetry = { version = "2.0.0", path = "../telemetry" }
 sp-trie = { version = "2.0.0", path = "../../primitives/trie" }
 sp-transaction-pool = { version = "2.0.0", path = "../../primitives/transaction-pool" }
diff --git a/client/authority-discovery/Cargo.toml b/client/authority-discovery/Cargo.toml
index 767be822d7858..7381e5add19a1 100644
--- a/client/authority-discovery/Cargo.toml
+++ b/client/authority-discovery/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-authority-discovery"
-version = "2.0.0"
+version = "0.8.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 build = "build.rs"
diff --git a/client/basic-authorship/Cargo.toml b/client/basic-authorship/Cargo.toml
index 4cdef01afd46b..eedf6d12613d7 100644
--- a/client/basic-authorship/Cargo.toml
+++ b/client/basic-authorship/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-basic-authority"
-version = "2.0.0"
+version = "0.8.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
@@ -12,13 +12,13 @@ sp-api = { version = "2.0.0", path = "../../primitives/api" }
 sp-runtime = { version = "2.0.0", path = "../../primitives/runtime" }
 sp-core = { version = "2.0.0", path = "../../primitives/core" }
 sp-blockchain = { version = "2.0.0", path = "../../primitives/blockchain" }
-sc-client = { version = "2.0.0", path = "../" }
+sc-client = { version = "0.8", path = "../" }
 sc-client-api = { version = "2.0.0", path = "../api" }
 sp-consensus = { version = "0.8", path = "../../primitives/consensus/common" }
 sp-inherents = { version = "2.0.0", path = "../../primitives/inherents" }
 sc-telemetry = { version = "2.0.0", path = "../telemetry" }
 sp-transaction-pool = { version = "2.0.0", path = "../../primitives/transaction-pool" }
-sc-block-builder = { version = "2.0.0", path = "../block-builder" }
+sc-block-builder = { version = "0.8", path = "../block-builder" }
 tokio-executor = { version = "0.2.0-alpha.6", features = ["blocking"] }
 
 [dev-dependencies]
diff --git a/client/block-builder/Cargo.toml b/client/block-builder/Cargo.toml
index 1dcc9b05f5eb9..29531c4288bed 100644
--- a/client/block-builder/Cargo.toml
+++ b/client/block-builder/Cargo.toml
@@ -1,11 +1,11 @@
 [package]
 name = "sc-block-builder"
-version = "2.0.0"
+version = "0.8.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
 [dependencies]
-sp-state-machine = { version = "2.0.0", path = "../../primitives/state-machine" }
+sp-state-machine = { version = "0.8", path = "../../primitives/state-machine" }
 sp-runtime = { version = "2.0.0", path = "../../primitives/runtime" }
 sp-api = { version = "2.0.0", path = "../../primitives/api" }
 sp-consensus = { version = "0.8.0", path = "../../primitives/consensus/common" }
diff --git a/client/cli/Cargo.toml b/client/cli/Cargo.toml
index b653f982e6694..b46e3992b2e9f 100644
--- a/client/cli/Cargo.toml
+++ b/client/cli/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-cli"
-version = "2.0.0"
+version = "0.8.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "Substrate CLI interface."
 edition = "2018"
@@ -26,8 +26,8 @@ sp-blockchain = { version = "2.0.0", path = "../../primitives/blockchain" }
 sc-network = { version = "0.8", path = "../network" }
 sp-runtime = { version = "2.0.0", path = "../../primitives/runtime" }
 sp-core = { version = "2.0.0", path = "../../primitives/core" }
-sc-service = { version = "2.0.0", default-features = false, path = "../service" }
-sp-state-machine = { version = "2.0.0", path = "../../primitives/state-machine" }
+sc-service = { version = "0.8", default-features = false, path = "../service" }
+sp-state-machine = { version = "0.8", path = "../../primitives/state-machine" }
 sc-telemetry = { version = "2.0.0", path = "../telemetry" }
 sp-keyring = { version = "2.0.0", path = "../../primitives/keyring" }
 names = "0.11.0"
diff --git a/client/consensus/aura/Cargo.toml b/client/consensus/aura/Cargo.toml
index bcbf622cd3abc..3d4c5a9157bef 100644
--- a/client/consensus/aura/Cargo.toml
+++ b/client/consensus/aura/Cargo.toml
@@ -9,7 +9,7 @@ edition = "2018"
 sp-application-crypto = { version = "2.0.0", path = "../../../primitives/application-crypto" }
 sp-consensus-aura = { version = "0.8", path = "../../../primitives/consensus/aura" }
 sp-block-builder = { version = "2.0.0", path = "../../../primitives/block-builder" }
-sc-client = { version = "2.0.0", path = "../../" }
+sc-client = { version = "0.8", path = "../../" }
 sc-client-api = { version = "2.0.0", path = "../../api" }
 codec = { package = "parity-scale-codec", version = "1.0.0" }
 sp-consensus = { version = "0.8", path = "../../../primitives/consensus/common" }
@@ -32,10 +32,10 @@ sc-telemetry = { version = "2.0.0", path = "../../telemetry" }
 
 [dev-dependencies]
 sp-keyring = { version = "2.0.0", path = "../../../primitives/keyring" }
-sc-executor = { version = "2.0.0", path = "../../executor" }
+sc-executor = { version = "0.8", path = "../../executor" }
 sc-network = { version = "0.8", path = "../../network" }
-sc-network-test = { version = "2.0.0", path = "../../network/test" }
-sc-service = { version = "2.0.0", path = "../../service" }
+sc-network-test = { version = "0.8.0", path = "../../network/test" }
+sc-service = { version = "0.8", path = "../../service" }
 substrate-test-runtime-client = { version = "2.0.0", path = "../../../test-utils/runtime/client" }
 tokio = "0.1.22"
 env_logger = "0.7.0"
diff --git a/client/consensus/babe/Cargo.toml b/client/consensus/babe/Cargo.toml
index 53f60c76f909a..55b0e0cf20217 100644
--- a/client/consensus/babe/Cargo.toml
+++ b/client/consensus/babe/Cargo.toml
@@ -20,7 +20,7 @@ sp-timestamp = { version = "2.0.0", path = "../../../primitives/timestamp" }
 sc-telemetry = { version = "2.0.0", path = "../../telemetry" }
 sc-keystore = { version = "2.0.0", path = "../../keystore" }
 sc-client-api = { version = "2.0.0", path = "../../api" }
-sc-client = { version = "2.0.0", path = "../../" }
+sc-client = { version = "0.8", path = "../../" }
 sp-api = { version = "2.0.0", path = "../../../primitives/api" }
 sp-block-builder = { version = "2.0.0", path = "../../../primitives/block-builder" }
 sp-blockchain = { version = "2.0.0", path = "../../../primitives/blockchain" }
@@ -41,12 +41,12 @@ derive_more = "0.99.2"
 
 [dev-dependencies]
 sp-keyring = { version = "2.0.0", path = "../../../primitives/keyring" }
-sc-executor = { version = "2.0.0", path = "../../executor" }
+sc-executor = { version = "0.8", path = "../../executor" }
 sc-network = { version = "0.8", path = "../../network" }
-sc-network-test = { version = "2.0.0", path = "../../network/test" }
-sc-service = { version = "2.0.0", path = "../../service" }
+sc-network-test = { version = "0.8.0", path = "../../network/test" }
+sc-service = { version = "0.8", path = "../../service" }
 substrate-test-runtime-client = { version = "2.0.0", path = "../../../test-utils/runtime/client" }
-sc-block-builder = { version = "2.0.0", path = "../../block-builder" }
+sc-block-builder = { version = "0.8", path = "../../block-builder" }
 tokio = "0.1.22"
 env_logger = "0.7.0"
 tempfile = "3.1.0"
diff --git a/client/consensus/slots/Cargo.toml b/client/consensus/slots/Cargo.toml
index 3f1a572249899..89ee14b8fa463 100644
--- a/client/consensus/slots/Cargo.toml
+++ b/client/consensus/slots/Cargo.toml
@@ -12,7 +12,7 @@ sc-client-api = { version = "2.0.0", path = "../../api" }
 sp-core = { version = "2.0.0", path = "../../../primitives/core" }
 sp-blockchain = { version = "2.0.0", path = "../../../primitives/blockchain" }
 sp-runtime = { version = "2.0.0", path = "../../../primitives/runtime" }
-sp-state-machine = { version = "2.0.0", path = "../../../primitives/state-machine" }
+sp-state-machine = { version = "0.8.0", path = "../../../primitives/state-machine" }
 sp-api = { version = "2.0.0", path = "../../../primitives/api" }
 sc-telemetry = { version = "2.0.0", path = "../../telemetry" }
 sp-consensus = { version = "0.8", path = "../../../primitives/consensus/common" }
diff --git a/client/db/Cargo.toml b/client/db/Cargo.toml
index d34b04a17edd3..6b08d92db91c4 100644
--- a/client/db/Cargo.toml
+++ b/client/db/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-client-db"
-version = "2.0.0"
+version = "0.8.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
@@ -18,10 +18,10 @@ codec = { package = "parity-scale-codec", version = "1.0.0", features = ["derive
 sc-client-api = { version = "2.0.0", path = "../api" }
 sp-core = { version = "2.0.0", path = "../../primitives/core" }
 sp-runtime = { version = "2.0.0", path = "../../primitives/runtime" }
-sc-client = { version = "2.0.0", path = "../" }
-sp-state-machine = { version = "2.0.0", path = "../../primitives/state-machine" }
-sc-executor = { version = "2.0.0", path = "../executor" }
-sc-state-db = { version = "2.0.0", path = "../state-db" }
+sc-client = { version = "0.8", path = "../" }
+sp-state-machine = { version = "0.8", path = "../../primitives/state-machine" }
+sc-executor = { version = "0.8", path = "../executor" }
+sc-state-db = { version = "0.8", path = "../state-db" }
 sp-trie = { version = "2.0.0", path = "../../primitives/trie" }
 sp-consensus = { version = "0.8", path = "../../primitives/consensus/common" }
 sp-blockchain = { version = "2.0.0", path = "../../primitives/blockchain" }
diff --git a/client/executor/Cargo.toml b/client/executor/Cargo.toml
index a2f6ebaac0e3c..aa8c46999d98d 100644
--- a/client/executor/Cargo.toml
+++ b/client/executor/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-executor"
-version = "2.0.0"
+version = "0.8.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
@@ -18,10 +18,10 @@ parity-wasm = "0.41.0"
 lazy_static = "1.4.0"
 sp-wasm-interface = { version = "2.0.0", path = "../../primitives/wasm-interface" }
 sp-runtime-interface = { version = "2.0.0", path = "../../primitives/runtime-interface" }
-sp-externalities = { version = "2.0.0", path = "../../primitives/externalities" }
-sc-executor-common = { version = "2.0.0", path = "common" }
-sc-executor-wasmi = { version = "2.0.0", path = "wasmi" }
-sc-executor-wasmtime = { version = "2.0.0", path = "wasmtime", optional = true }
+sp-externalities = { version = "0.8.0", path = "../../primitives/externalities" }
+sc-executor-common = { version = "0.8", path = "common" }
+sc-executor-wasmi = { version = "0.8", path = "wasmi" }
+sc-executor-wasmtime = { version = "0.8", path = "wasmtime", optional = true }
 parking_lot = "0.9.0"
 log = "0.4.8"
 libsecp256k1 = "0.3.4"
@@ -32,7 +32,7 @@ wabt = "0.9.2"
 hex-literal = "0.2.1"
 sc-runtime-test = { version = "2.0.0", path = "runtime-test" }
 substrate-test-runtime = { version = "2.0.0", path = "../../test-utils/runtime" }
-sp-state-machine = { version = "2.0.0", path = "../../primitives/state-machine" }
+sp-state-machine = { version = "0.8", path = "../../primitives/state-machine" }
 test-case = "0.3.3"
 
 [features]
diff --git a/client/executor/common/Cargo.toml b/client/executor/common/Cargo.toml
index ddd40de62bbb1..cae0876217993 100644
--- a/client/executor/common/Cargo.toml
+++ b/client/executor/common/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-executor-common"
-version = "2.0.0"
+version = "0.8.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
diff --git a/client/executor/runtime-test/Cargo.toml b/client/executor/runtime-test/Cargo.toml
index ba88550a92ef7..835021fec2a11 100644
--- a/client/executor/runtime-test/Cargo.toml
+++ b/client/executor/runtime-test/Cargo.toml
@@ -8,7 +8,7 @@ build = "build.rs"
 [dependencies]
 sp-std = { version = "2.0.0", default-features = false, path = "../../../primitives/std" }
 sp-io = { version = "2.0.0", default-features = false, path = "../../../primitives/io" }
-sp-sandbox = { version = "2.0.0", default-features = false, path = "../../../primitives/sandbox" }
+sp-sandbox = { version = "0.8.0", default-features = false, path = "../../../primitives/sandbox" }
 sp-core = { version = "2.0.0", default-features = false, path = "../../../primitives/core" }
 sp-runtime = { version = "2.0.0", default-features = false, path = "../../../primitives/runtime" }
 
diff --git a/client/executor/wasmi/Cargo.toml b/client/executor/wasmi/Cargo.toml
index 7a13d7ea97e26..799b9f3c544f3 100644
--- a/client/executor/wasmi/Cargo.toml
+++ b/client/executor/wasmi/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-executor-wasmi"
-version = "2.0.0"
+version = "0.8.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
@@ -9,8 +9,8 @@ log = "0.4.8"
 wasmi = "0.6.2"
 parity-wasm = "0.41.0"
 codec = { package = "parity-scale-codec", version = "1.0.0" }
-sc-executor-common = { version = "2.0.0", path = "../common" }
+sc-executor-common = { version = "0.8", path = "../common" }
 sp-wasm-interface = { version = "2.0.0", path = "../../../primitives/wasm-interface" }
 sp-runtime-interface = { version = "2.0.0", path = "../../../primitives/runtime-interface" }
 sp-core = { version = "2.0.0", path = "../../../primitives/core" }
-sp-externalities = { version = "2.0.0", path = "../../../primitives/externalities" }
+sp-externalities = { version = "0.8.0", path = "../../../primitives/externalities" }
diff --git a/client/executor/wasmtime/Cargo.toml b/client/executor/wasmtime/Cargo.toml
index 0d6bede016e66..64b08222d1a13 100644
--- a/client/executor/wasmtime/Cargo.toml
+++ b/client/executor/wasmtime/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-executor-wasmtime"
-version = "2.0.0"
+version = "0.8.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
@@ -9,11 +9,11 @@ log = "0.4.8"
 wasmi = "0.6.2"
 parity-wasm = "0.41.0"
 codec = { package = "parity-scale-codec", version = "1.0.0" }
-sc-executor-common = { version = "2.0.0", path = "../common" }
+sc-executor-common = { version = "0.8", path = "../common" }
 sp-wasm-interface = { version = "2.0.0", path = "../../../primitives/wasm-interface" }
 sp-runtime-interface = { version = "2.0.0", path = "../../../primitives/runtime-interface" }
 sp-core = { version = "2.0.0", path = "../../../primitives/core" }
-sp-externalities = { version = "2.0.0", path = "../../../primitives/externalities" }
+sp-externalities = { version = "0.8.0", path = "../../../primitives/externalities" }
 
 cranelift-codegen = "0.50"
 cranelift-entity = "0.50"
diff --git a/client/finality-grandpa/Cargo.toml b/client/finality-grandpa/Cargo.toml
index 9f90834e0df3c..ac0501c3c31d9 100644
--- a/client/finality-grandpa/Cargo.toml
+++ b/client/finality-grandpa/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-finality-grandpa"
-version = "2.0.0"
+version = "0.8.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
@@ -20,11 +20,11 @@ sc-telemetry = { version = "2.0.0", path = "../telemetry" }
 sc-keystore = { version = "2.0.0", path = "../keystore" }
 serde_json = "1.0.41"
 sc-client-api = { version = "2.0.0", path = "../api" }
-sc-client = { version = "2.0.0", path = "../" }
+sc-client = { version = "0.8", path = "../" }
 sp-inherents = { version = "2.0.0", path = "../../primitives/inherents" }
 sp-blockchain = { version = "2.0.0", path = "../../primitives/blockchain" }
 sc-network = { version = "0.8", path = "../network" }
-sc-network-gossip = { version = "2.0.0", path = "../network-gossip" }
+sc-network-gossip = { version = "0.8", path = "../network-gossip" }
 sp-finality-tracker = { version = "2.0.0", path = "../../primitives/finality-tracker" }
 sp-finality-grandpa = { version = "2.0.0", path = "../../primitives/finality-grandpa" }
 finality-grandpa = { version = "0.10.1", features = ["derive-codec"] }
@@ -32,11 +32,11 @@ finality-grandpa = { version = "0.10.1", features = ["derive-codec"] }
 [dev-dependencies]
 finality-grandpa = { version = "0.10.1", features = ["derive-codec", "test-helpers"] }
 sc-network = { version = "0.8", path = "../network" }
-sc-network-test = { version = "2.0.0", path = "../network/test" }
+sc-network-test = { version = "0.8.0", path = "../network/test" }
 sp-keyring = { version = "2.0.0", path = "../../primitives/keyring" }
 substrate-test-runtime-client = { version = "2.0.0",  path = "../../test-utils/runtime/client" }
 sp-consensus-babe = { version = "0.8", path = "../../primitives/consensus/babe" }
-sp-state-machine = { version = "2.0.0", path = "../../primitives/state-machine" }
+sp-state-machine = { version = "0.8", path = "../../primitives/state-machine" }
 env_logger = "0.7.0"
 tokio = "0.1.22"
 tempfile = "3.1.0"
diff --git a/client/network-gossip/Cargo.toml b/client/network-gossip/Cargo.toml
index cf8d31c6d36e5..91c80e2213e00 100644
--- a/client/network-gossip/Cargo.toml
+++ b/client/network-gossip/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 description = "Gossiping for the Substrate network protocol"
 name = "sc-network-gossip"
-version = "2.0.0"
+version = "0.8.0"
 license = "GPL-3.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
diff --git a/client/network/Cargo.toml b/client/network/Cargo.toml
index d24f986f4cd21..f1d89f71b0ed1 100644
--- a/client/network/Cargo.toml
+++ b/client/network/Cargo.toml
@@ -25,13 +25,13 @@ rand = "0.7.2"
 libp2p = { version = "0.14.0-alpha.1", default-features = false, features = ["libp2p-websocket"] }
 fork-tree = { version = "2.0.0", path = "../../utils/fork-tree" }
 sp-consensus = { version = "0.8", path = "../../primitives/consensus/common" }
-sc-client = { version = "2.0.0", path = "../" }
+sc-client = { version = "0.8", path = "../" }
 sc-client-api = { version = "2.0.0", path = "../api" }
 sp-blockchain = { version = "2.0.0", path = "../../primitives/blockchain" }
 sp-runtime = { version = "2.0.0", path = "../../primitives/runtime" }
 sp-arithmetic = { version = "2.0.0", path = "../../primitives/arithmetic" }
 sp-core = { version = "2.0.0", path = "../../primitives/core" }
-sc-block-builder = { version = "2.0.0", path = "../block-builder" }
+sc-block-builder = { version = "0.8", path = "../block-builder" }
 codec = { package = "parity-scale-codec", version = "1.0.0", features = ["derive"] }
 sc-peerset = { version = "2.0.0", path = "../peerset" }
 serde = { version = "1.0.101", features = ["derive"] }
diff --git a/client/network/test/Cargo.toml b/client/network/test/Cargo.toml
index 381276ecfa5bd..036607df921ba 100644
--- a/client/network/test/Cargo.toml
+++ b/client/network/test/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 description = "Integration tests for Substrate network protocol"
 name = "sc-network-test"
-version = "2.0.0"
+version = "0.8.0"
 license = "GPL-3.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
@@ -16,12 +16,12 @@ futures-timer = "0.4.0"
 rand = "0.7.2"
 libp2p = { version = "0.14.0-alpha.1", default-features = false, features = ["libp2p-websocket"] }
 sp-consensus = { version = "0.8", path = "../../../primitives/consensus/common" }
-sc-client = { version = "2.0.0", path = "../../" }
+sc-client = { version = "0.8", path = "../../" }
 sc-client-api = { version = "2.0.0", path = "../../api" }
 sp-blockchain = { version = "2.0.0", path = "../../../primitives/blockchain" }
 sp-runtime = { version = "2.0.0", path = "../../../primitives/runtime" }
 sp-core = { version = "2.0.0", path = "../../../primitives/core" }
-sc-block-builder = { version = "2.0.0", path = "../../block-builder" }
+sc-block-builder = { version = "0.8", path = "../../block-builder" }
 sp-consensus-babe = { version = "0.8", path = "../../../primitives/consensus/babe" }
 env_logger = "0.7.0"
 substrate-test-runtime-client = { version = "2.0.0", path = "../../../test-utils/runtime/client" }
diff --git a/client/offchain/Cargo.toml b/client/offchain/Cargo.toml
index 8048d10dc34fc..3ef98f1ab9004 100644
--- a/client/offchain/Cargo.toml
+++ b/client/offchain/Cargo.toml
@@ -31,7 +31,7 @@ hyper = "0.12.35"
 hyper-rustls = "0.17.1"
 
 [dev-dependencies]
-sc-client-db = { version = "2.0.0", default-features = true, path = "../db/" }
+sc-client-db = { version = "0.8", default-features = true, path = "../db/" }
 env_logger = "0.7.0"
 substrate-test-runtime-client = { version = "2.0.0", path = "../../test-utils/runtime/client" }
 tokio = "0.1.22"
diff --git a/client/rpc-api/Cargo.toml b/client/rpc-api/Cargo.toml
index 2c7a2ee071d7f..7f1a12f80e80d 100644
--- a/client/rpc-api/Cargo.toml
+++ b/client/rpc-api/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-rpc-api"
-version = "2.0.0"
+version = "0.8.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
diff --git a/client/rpc/Cargo.toml b/client/rpc/Cargo.toml
index f4a42d169a6dc..6530bff4ed652 100644
--- a/client/rpc/Cargo.toml
+++ b/client/rpc/Cargo.toml
@@ -5,9 +5,9 @@ authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
 [dependencies]
-sc-rpc-api = { version = "2.0.0", path = "../rpc-api" }
+sc-rpc-api = { version = "0.8", path = "../rpc-api" }
 sc-client-api = { version = "2.0.0", path = "../api" }
-sc-client = { version = "2.0.0", path = "../" }
+sc-client = { version = "0.8", path = "../" }
 sp-api = { version = "2.0.0", path = "../../primitives/api" }
 codec = { package = "parity-scale-codec", version = "1.0.0" }
 futures = { version = "0.3.1", features = ["compat"] }
@@ -20,8 +20,8 @@ serde_json = "1.0.41"
 sp-session = { version = "2.0.0", path = "../../primitives/session" }
 sp-runtime = { version = "2.0.0", path = "../../primitives/runtime" }
 sp-rpc = { version = "2.0.0", path = "../../primitives/rpc" }
-sp-state-machine = { version = "2.0.0", path = "../../primitives/state-machine" }
-sc-executor = { version = "2.0.0", path = "../executor" }
+sp-state-machine = { version = "0.8", path = "../../primitives/state-machine" }
+sc-executor = { version = "0.8", path = "../executor" }
 sc-keystore = { version = "2.0.0", path = "../keystore" }
 sp-transaction-pool = { version = "2.0.0", path = "../../primitives/transaction-pool" }
 sp-blockchain = { version = "2.0.0", path = "../../primitives/blockchain" }
diff --git a/client/service/Cargo.toml b/client/service/Cargo.toml
index c417479511330..095136a11c060 100644
--- a/client/service/Cargo.toml
+++ b/client/service/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-service"
-version = "2.0.0"
+version = "0.8.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
@@ -39,11 +39,11 @@ sp-consensus = { version = "0.8", path = "../../primitives/consensus/common" }
 sc-network = { version = "0.8", path = "../network" }
 sc-chain-spec = { version = "2.0.0", path = "../chain-spec" }
 sc-client-api = { version = "2.0.0", path = "../api" }
-sc-client = { version = "2.0.0", path = "../" }
+sc-client = { version = "0.8", path = "../" }
 sp-api = { version = "2.0.0", path = "../../primitives/api" }
-sc-client-db = { version = "2.0.0", path = "../db" }
+sc-client-db = { version = "0.8", path = "../db" }
 codec = { package = "parity-scale-codec", version = "1.0.0" }
-sc-executor = { version = "2.0.0", path = "../executor" }
+sc-executor = { version = "0.8", path = "../executor" }
 sc-transaction-pool = { version = "2.0.0", path = "../transaction-pool" }
 sp-transaction-pool = { version = "2.0.0", path = "../../primitives/transaction-pool" }
 sc-rpc-server = { version = "2.0.0", path = "../rpc-servers" }
@@ -51,13 +51,13 @@ sc-rpc = { version = "2.0.0", path = "../rpc" }
 sc-telemetry = { version = "2.0.0", path = "../telemetry" }
 sc-offchain = { version = "2.0.0", path = "../offchain" }
 parity-multiaddr = { package = "parity-multiaddr", version = "0.5.0" }
-grafana-data-source = { version = "2.0.0", path = "../../utils/grafana-data-source" }
+grafana-data-source = { version = "0.8", path = "../../utils/grafana-data-source" }
 sc-tracing = { version = "2.0.0", path = "../tracing" }
 tracing = "0.1.10"
 
 [dev-dependencies]
 substrate-test-runtime-client = { version = "2.0.0", path = "../../test-utils/runtime/client" }
 sp-consensus-babe = { version = "0.8", path = "../../primitives/consensus/babe" }
-grandpa = { version = "2.0.0", package = "sc-finality-grandpa", path = "../finality-grandpa" }
+grandpa = { version = "0.8", package = "sc-finality-grandpa", path = "../finality-grandpa" }
 grandpa-primitives = { version = "2.0.0", package = "sp-finality-grandpa", path = "../../primitives/finality-grandpa" }
 tokio = { version = "0.2", features = ["rt-core"] }
diff --git a/client/service/test/Cargo.toml b/client/service/test/Cargo.toml
index 6fa6e145cfd5e..01ccf71a4bd7b 100644
--- a/client/service/test/Cargo.toml
+++ b/client/service/test/Cargo.toml
@@ -12,10 +12,10 @@ log = "0.4.8"
 env_logger = "0.7.0"
 fdlimit = "0.1.1"
 futures = { version = "0.3.1", features = ["compat"] }
-sc-service = { version = "2.0.0", default-features = false, path = "../../service" }
+sc-service = { version = "0.8.0", default-features = false, path = "../../service" }
 sc-network = { version = "0.8", path = "../../network" }
 sp-consensus = { version = "0.8", path = "../../../primitives/consensus/common" }
-sc-client = { version = "2.0.0", path = "../../" }
+sc-client = { version = "0.8", path = "../../" }
 sp-runtime = { version = "2.0.0", path = "../../../primitives/runtime" }
 sp-core = { version = "2.0.0", path = "../../../primitives/core" }
 sp-transaction-pool = { version = "2.0.0", path = "../../../primitives/transaction-pool" }
diff --git a/client/state-db/Cargo.toml b/client/state-db/Cargo.toml
index 31335d752ea67..9e162c5cb9898 100644
--- a/client/state-db/Cargo.toml
+++ b/client/state-db/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sc-state-db"
-version = "2.0.0"
+version = "0.8.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
diff --git a/client/tracing/Cargo.toml b/client/tracing/Cargo.toml
index 2ceee93f6a62a..2268c5719f22a 100644
--- a/client/tracing/Cargo.toml
+++ b/client/tracing/Cargo.toml
@@ -15,7 +15,7 @@ slog = { version = "2.5.2", features = ["nested-values"] }
 tracing-core = "0.1.7"
 
 sc-telemetry = { version = "2.0.0", path = "../telemetry" }
-grafana-data-source = { version = "2.0.0", path = "../../utils/grafana-data-source" }
+grafana-data-source = { version = "0.8", path = "../../utils/grafana-data-source" }
 
 [dev-dependencies]
 tracing = "0.1.10"
diff --git a/frame/contracts/Cargo.toml b/frame/contracts/Cargo.toml
index c6102d23eabbe..d583809f0bfa7 100644
--- a/frame/contracts/Cargo.toml
+++ b/frame/contracts/Cargo.toml
@@ -14,7 +14,7 @@ sp-core = { version = "2.0.0", default-features = false, path = "../../primitive
 sp-runtime = { version = "2.0.0", default-features = false, path = "../../primitives/runtime" }
 sp-io = { version = "2.0.0", default-features = false, path = "../../primitives/io" }
 sp-std = { version = "2.0.0", default-features = false, path = "../../primitives/std" }
-sp-sandbox = { version = "2.0.0", default-features = false, path = "../../primitives/sandbox" }
+sp-sandbox = { version = "0.8.0", default-features = false, path = "../../primitives/sandbox" }
 frame-support = { version = "2.0.0", default-features = false, path = "../support" }
 frame-system = { version = "2.0.0", default-features = false, path = "../system" }
 
diff --git a/frame/contracts/rpc/Cargo.toml b/frame/contracts/rpc/Cargo.toml
index c563d9f727dec..61eb55368eb10 100644
--- a/frame/contracts/rpc/Cargo.toml
+++ b/frame/contracts/rpc/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-contracts-rpc"
-version = "2.0.0"
+version = "0.8.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
@@ -15,7 +15,7 @@ sp-rpc = { version = "2.0.0", path = "../../../primitives/rpc" }
 serde = { version = "1.0.101", features = ["derive"] }
 sp-runtime = { version = "2.0.0", path = "../../../primitives/runtime" }
 sp-api = { version = "2.0.0", path = "../../../primitives/api" }
-pallet-contracts-rpc-runtime-api = { version = "2.0.0", path = "./runtime-api" }
+pallet-contracts-rpc-runtime-api = { version = "0.8.0", path = "./runtime-api" }
 
 [dev-dependencies]
 serde_json = "1.0.41"
diff --git a/frame/contracts/rpc/runtime-api/Cargo.toml b/frame/contracts/rpc/runtime-api/Cargo.toml
index c8e183237cf43..e0cbd73f807f2 100644
--- a/frame/contracts/rpc/runtime-api/Cargo.toml
+++ b/frame/contracts/rpc/runtime-api/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pallet-contracts-rpc-runtime-api"
-version = "2.0.0"
+version = "0.8.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
diff --git a/frame/metadata/Cargo.toml b/frame/metadata/Cargo.toml
index 64cf326ff68dc..bcb90d2368928 100644
--- a/frame/metadata/Cargo.toml
+++ b/frame/metadata/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "frame-metadata"
-version = "2.0.0"
+version = "10.0.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
diff --git a/frame/support/Cargo.toml b/frame/support/Cargo.toml
index 1695375d36832..d8460ef7e8aea 100644
--- a/frame/support/Cargo.toml
+++ b/frame/support/Cargo.toml
@@ -8,7 +8,7 @@ edition = "2018"
 log = "0.4"
 serde = { version = "1.0.101", optional = true, features = ["derive"] }
 codec = { package = "parity-scale-codec", version = "1.0.6", default-features = false, features = ["derive"] }
-frame-metadata = { version = "2.0.0", default-features = false, path = "../metadata" }
+frame-metadata = { version = "10.0.0", default-features = false, path = "../metadata" }
 sp-std = { version = "2.0.0", default-features = false, path = "../../primitives/std" }
 sp-io ={ path = "../../primitives/io", default-features = false }
 sp-runtime = { version = "2.0.0", default-features = false, path = "../../primitives/runtime" }
@@ -18,7 +18,7 @@ sp-inherents = { version = "2.0.0", default-features = false, path = "../../prim
 frame-support-procedural = { version = "2.0.0", path = "./procedural" }
 paste = "0.1.6"
 once_cell = { version = "0.2.4", default-features = false, optional = true }
-sp-state-machine = { version = "2.0.0", optional = true, path = "../../primitives/state-machine" }
+sp-state-machine = { version = "0.8", optional = true, path = "../../primitives/state-machine" }
 bitmask = { version = "0.5.0", default-features = false }
 impl-trait-for-tuples = "0.1.3"
 tracing = { version = "0.1.10", optional = true }
diff --git a/frame/support/src/storage/generator/mod.rs b/frame/support/src/storage/generator/mod.rs
index 386e3d1cecaef..476c6d4472054 100644
--- a/frame/support/src/storage/generator/mod.rs
+++ b/frame/support/src/storage/generator/mod.rs
@@ -20,6 +20,8 @@
 //! implementation of StorageValue for this type).
 //!
 //! They are used by `decl_storage`.
+//!
+//! This is internal api and is subject to change.
 
 mod linked_map;
 mod map;
diff --git a/frame/support/src/storage/mod.rs b/frame/support/src/storage/mod.rs
index 0908adae3b604..f629ac3eb91a1 100644
--- a/frame/support/src/storage/mod.rs
+++ b/frame/support/src/storage/mod.rs
@@ -23,6 +23,7 @@ use crate::{traits::Len, hash::{Twox128, StorageHasher}};
 pub mod unhashed;
 pub mod hashed;
 pub mod child;
+#[doc(hidden)]
 pub mod generator;
 
 /// A trait for working with macro-generated storage values under the substrate storage API.
diff --git a/frame/support/test/Cargo.toml b/frame/support/test/Cargo.toml
index 92dc32e478f1d..0c73dcd65e4b8 100644
--- a/frame/support/test/Cargo.toml
+++ b/frame/support/test/Cargo.toml
@@ -8,7 +8,7 @@ edition = "2018"
 serde = { version = "1.0.101", default-features = false, features = ["derive"] }
 codec = { package = "parity-scale-codec", version = "1.0.0", default-features = false, features = ["derive"] }
 sp-io ={ path = "../../../primitives/io", default-features = false }
-sp-state-machine = { version = "2.0.0", optional = true, path = "../../../primitives/state-machine" }
+sp-state-machine = { version = "0.8", optional = true, path = "../../../primitives/state-machine" }
 frame-support = { version = "2.0.0", default-features = false, path = "../" }
 sp-inherents = { version = "2.0.0", default-features = false, path = "../../../primitives/inherents" }
 sp-runtime = { version = "2.0.0", default-features = false, path = "../../../primitives/runtime" }
diff --git a/primitives/api/Cargo.toml b/primitives/api/Cargo.toml
index 1e3e555456000..b9f736570ac4d 100644
--- a/primitives/api/Cargo.toml
+++ b/primitives/api/Cargo.toml
@@ -11,7 +11,7 @@ sp-core = { version = "2.0.0", default-features = false, path = "../core" }
 sp-std = { version = "2.0.0", default-features = false, path = "../std" }
 sp-runtime = { version = "2.0.0", default-features = false, path = "../runtime" }
 sp-version = { version = "2.0.0", default-features = false, path = "../version" }
-sp-state-machine = { version = "2.0.0", optional = true, path = "../../primitives/state-machine" }
+sp-state-machine = { version = "0.8", optional = true, path = "../../primitives/state-machine" }
 hash-db = { version = "0.15.2", optional = true }
 
 [dev-dependencies]
diff --git a/primitives/api/test/Cargo.toml b/primitives/api/test/Cargo.toml
index f1f0dfb50f12b..5892063bd1fc4 100644
--- a/primitives/api/test/Cargo.toml
+++ b/primitives/api/test/Cargo.toml
@@ -12,7 +12,7 @@ sp-runtime = { version = "2.0.0", path = "../../runtime" }
 sp-blockchain = { version = "2.0.0", path = "../../blockchain" }
 sp-consensus = { version = "0.8", path = "../../../primitives/consensus/common" }
 codec = { package = "parity-scale-codec", version = "1.0.0" }
-sp-state-machine = { version = "2.0.0", path = "../../../primitives/state-machine" }
+sp-state-machine = { version = "0.8", path = "../../../primitives/state-machine" }
 trybuild = "1.0.17"
 rustversion = "1.0.0"
 
diff --git a/primitives/blockchain/Cargo.toml b/primitives/blockchain/Cargo.toml
index 4f3f0d0b5fad0..a3c442094daaf 100644
--- a/primitives/blockchain/Cargo.toml
+++ b/primitives/blockchain/Cargo.toml
@@ -13,4 +13,4 @@ codec = { package = "parity-scale-codec", version = "1.0.0", default-features =
 sp-consensus = { version = "0.8", path = "../consensus/common" }
 sp-runtime = { version = "2.0.0", path = "../runtime" }
 sp-block-builder = { version = "2.0.0", path = "../block-builder" }
-sp-state-machine = { version = "2.0.0", path = "../state-machine" }
+sp-state-machine = { version = "0.8", path = "../state-machine" }
diff --git a/primitives/consensus/common/Cargo.toml b/primitives/consensus/common/Cargo.toml
index 4c38e31914700..3ae79caa43126 100644
--- a/primitives/consensus/common/Cargo.toml
+++ b/primitives/consensus/common/Cargo.toml
@@ -11,7 +11,7 @@ libp2p = { version = "0.14.0-alpha.1", default-features = false }
 log = "0.4.8"
 sp-core = { path= "../../core" }
 sp-inherents = { version = "2.0.0", path = "../../inherents" }
-sp-state-machine = { version = "2.0.0", path = "../../../primitives/state-machine" }
+sp-state-machine = { version = "0.8.0", path = "../../../primitives/state-machine" }
 futures = { version = "0.3.1", features = ["thread-pool"] }
 futures-timer = "0.4.0"
 sp-std = { version = "2.0.0", path = "../../std" }
diff --git a/primitives/core/Cargo.toml b/primitives/core/Cargo.toml
index 8242ff8044466..f7eec82e55daf 100644
--- a/primitives/core/Cargo.toml
+++ b/primitives/core/Cargo.toml
@@ -26,7 +26,7 @@ zeroize = { version = "1.0.0", default-features = false }
 lazy_static = { version = "1.4.0", default-features = false, optional = true }
 parking_lot = { version = "0.9.0", optional = true }
 sp-debug-derive = { version = "2.0.0", path = "../debug-derive" }
-sp-externalities = { version = "2.0.0", optional = true, path = "../externalities" }
+sp-externalities = { version = "0.8.0", optional = true, path = "../externalities" }
 sp-storage = { version = "2.0.0", default-features = false, path = "../storage" }
 libsecp256k1 = { version = "0.3.2", default-features = false }
 
diff --git a/primitives/externalities/Cargo.toml b/primitives/externalities/Cargo.toml
index 09ce3253f2d98..361a9ac034394 100644
--- a/primitives/externalities/Cargo.toml
+++ b/primitives/externalities/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-externalities"
-version = "2.0.0"
+version = "0.8.0"
 license = "GPL-3.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
diff --git a/primitives/io/Cargo.toml b/primitives/io/Cargo.toml
index 04350c9479ede..2f03f230ef8e0 100644
--- a/primitives/io/Cargo.toml
+++ b/primitives/io/Cargo.toml
@@ -10,10 +10,10 @@ hash-db = { version = "0.15.2", default-features = false }
 sp-core = { version = "2.0.0", default-features = false, path = "../core" }
 sp-std = { version = "2.0.0", default-features = false, path = "../std" }
 libsecp256k1 = { version = "0.3.4", optional = true }
-sp-state-machine = { version = "2.0.0", optional = true, path = "../../primitives/state-machine" }
+sp-state-machine = { version = "0.8", optional = true, path = "../../primitives/state-machine" }
 sp-runtime-interface = { version = "2.0.0", default-features = false, path = "../runtime-interface" }
 sp-trie = { version = "2.0.0", optional = true, path = "../../primitives/trie" }
-sp-externalities = { version = "2.0.0", optional = true, path = "../externalities" }
+sp-externalities = { version = "0.8.0", optional = true, path = "../externalities" }
 log = { version = "0.4.8", optional = true }
 
 [features]
diff --git a/primitives/runtime-interface/Cargo.toml b/primitives/runtime-interface/Cargo.toml
index cdc94b6a2f226..bac9a893deb4c 100644
--- a/primitives/runtime-interface/Cargo.toml
+++ b/primitives/runtime-interface/Cargo.toml
@@ -8,7 +8,7 @@ edition = "2018"
 sp-wasm-interface = { version = "2.0.0", optional = true, path = "../wasm-interface" }
 sp-std = { version = "2.0.0", default-features = false, path = "../std" }
 sp-runtime-interface-proc-macro = { version = "2.0.0", path = "proc-macro" }
-sp-externalities = { version = "2.0.0", optional = true, path = "../externalities" }
+sp-externalities = { version = "0.8.0", optional = true, path = "../externalities" }
 codec = { package = "parity-scale-codec", version = "1.0.6", default-features = false }
 environmental = { version = "1.0.2", optional = true }
 static_assertions = "1.0.0"
@@ -16,7 +16,7 @@ primitive-types = { version = "0.6.1", default-features = false }
 
 [dev-dependencies]
 sp-runtime-interface-test-wasm = { version = "2.0.0", path = "test-wasm" }
-sp-state-machine = { version = "2.0.0", path = "../../primitives/state-machine" }
+sp-state-machine = { version = "0.8", path = "../../primitives/state-machine" }
 sp-core = { version = "2.0.0", path = "../core" }
 sp-io = { version = "2.0.0", path = "../io" }
 rustversion = "1.0.0"
diff --git a/primitives/runtime-interface/test/Cargo.toml b/primitives/runtime-interface/test/Cargo.toml
index 35eb8cb8e1f56..f0a4c0edd4a53 100644
--- a/primitives/runtime-interface/test/Cargo.toml
+++ b/primitives/runtime-interface/test/Cargo.toml
@@ -7,8 +7,8 @@ publish = false
 
 [dependencies]
 sp-runtime-interface = { version = "2.0.0", path = "../" }
-sc-executor = { version = "2.0.0", path = "../../../client/executor" }
+sc-executor = { version = "0.8", path = "../../../client/executor" }
 sp-runtime-interface-test-wasm = { version = "2.0.0", path = "../test-wasm" }
-sp-state-machine = { version = "2.0.0", path = "../../../primitives/state-machine" }
+sp-state-machine = { version = "0.8", path = "../../../primitives/state-machine" }
 sp-core = { version = "2.0.0", path = "../../core" }
 sp-io = { version = "2.0.0", path = "../../io" }
diff --git a/primitives/sandbox/Cargo.toml b/primitives/sandbox/Cargo.toml
index ff3b7662cd5a5..5d161a6deb9da 100755
--- a/primitives/sandbox/Cargo.toml
+++ b/primitives/sandbox/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-sandbox"
-version = "2.0.0"
+version = "0.8.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
diff --git a/primitives/state-machine/Cargo.toml b/primitives/state-machine/Cargo.toml
index 1424845ea6cc9..11e2aa0cef5a1 100644
--- a/primitives/state-machine/Cargo.toml
+++ b/primitives/state-machine/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sp-state-machine"
-version = "2.0.0"
+version = "0.8.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "Substrate State Machine"
 edition = "2018"
@@ -17,7 +17,7 @@ sp-panic-handler = { version = "2.0.0", path = "../panic-handler" }
 codec = { package = "parity-scale-codec", version = "1.0.0" }
 num-traits = "0.2.8"
 rand = "0.7.2"
-sp-externalities = { version = "2.0.0", path = "../externalities" }
+sp-externalities = { version = "0.8.0", path = "../externalities" }
 
 [dev-dependencies]
 hex-literal = "0.2.1"
diff --git a/test-utils/client/Cargo.toml b/test-utils/client/Cargo.toml
index 05dc41b2233a1..8b1ebc39f4724 100644
--- a/test-utils/client/Cargo.toml
+++ b/test-utils/client/Cargo.toml
@@ -6,10 +6,10 @@ edition = "2018"
 
 [dependencies]
 sc-client-api = { version = "2.0.0", path = "../../client/api" }
-sc-client = { version = "2.0.0", path = "../../client/" }
-sc-client-db = { version = "2.0.0", features = ["test-helpers"], path = "../../client/db" }
+sc-client = { version = "0.8", path = "../../client/" }
+sc-client-db = { version = "0.8", features = ["test-helpers"], path = "../../client/db" }
 sp-consensus = { version = "0.8", path = "../../primitives/consensus/common" }
-sc-executor = { version = "2.0.0", path = "../../client/executor" }
+sc-executor = { version = "0.8", path = "../../client/executor" }
 futures = "0.3.1"
 hash-db = "0.15.2"
 sp-keyring = { version = "2.0.0", path = "../../primitives/keyring" }
@@ -17,4 +17,4 @@ codec = { package = "parity-scale-codec", version = "1.0.0" }
 sp-core = { version = "2.0.0", path = "../../primitives/core" }
 sp-runtime = { version = "2.0.0", path = "../../primitives/runtime" }
 sp-blockchain = { version = "2.0.0", path = "../../primitives/blockchain" }
-sp-state-machine = { version = "2.0.0", path = "../../primitives/state-machine" }
+sp-state-machine = { version = "0.8", path = "../../primitives/state-machine" }
diff --git a/test-utils/runtime/Cargo.toml b/test-utils/runtime/Cargo.toml
index 6444c7fcf1463..35a7bdf1f7a97 100644
--- a/test-utils/runtime/Cargo.toml
+++ b/test-utils/runtime/Cargo.toml
@@ -32,15 +32,15 @@ pallet-babe = { version = "2.0.0", default-features = false, path = "../../frame
 frame-system = { version = "2.0.0", default-features = false, path = "../../frame/system" }
 frame-system-rpc-runtime-api = { version = "2.0.0", default-features = false, path = "../../frame/system/rpc/runtime-api" }
 pallet-timestamp = { version = "2.0.0", default-features = false, path = "../../frame/timestamp" }
-sc-client = { version = "2.0.0", optional = true, path = "../../client" }
+sc-client = { version = "0.8", optional = true, path = "../../client" }
 sp-trie = { version = "2.0.0", default-features = false, path = "../../primitives/trie" }
 sp-transaction-pool = { version = "2.0.0", default-features = false, path = "../../primitives/transaction-pool" }
 trie-db = { version = "0.18.1", default-features = false }
 
 [dev-dependencies]
-sc-executor = { version = "2.0.0", path = "../../client/executor" }
+sc-executor = { version = "0.8", path = "../../client/executor" }
 substrate-test-runtime-client = { version = "2.0.0", path = "./client" }
-sp-state-machine = { version = "2.0.0", path = "../../primitives/state-machine" }
+sp-state-machine = { version = "0.8", path = "../../primitives/state-machine" }
 
 [build-dependencies]
 wasm-builder-runner = { version = "1.0.4", package = "substrate-wasm-builder-runner", path = "../../utils/wasm-builder-runner" }
diff --git a/test-utils/runtime/client/Cargo.toml b/test-utils/runtime/client/Cargo.toml
index 8e08f6a1b5ec8..aa33f550127e8 100644
--- a/test-utils/runtime/client/Cargo.toml
+++ b/test-utils/runtime/client/Cargo.toml
@@ -5,7 +5,7 @@ authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
 [dependencies]
-sc-block-builder = { version = "2.0.0", path = "../../../client/block-builder" }
+sc-block-builder = { version = "0.8", path = "../../../client/block-builder" }
 substrate-test-client = { version = "2.0.0", path = "../../client" }
 sp-core = { version = "2.0.0", path = "../../../primitives/core" }
 substrate-test-runtime = { version = "2.0.0", path = "../../runtime" }
@@ -14,5 +14,5 @@ sp-api = { version = "2.0.0", path = "../../../primitives/api" }
 sp-blockchain = { version = "2.0.0", path = "../../../primitives/blockchain" }
 codec = { package = "parity-scale-codec", version = "1.0.0" }
 sc-client-api = { version = "2.0.0", path = "../../../client/api" }
-sc-client = { version = "2.0.0", path = "../../../client/" }
+sc-client = { version = "0.8", path = "../../../client/" }
 futures = "0.3.1"
diff --git a/utils/browser/Cargo.toml b/utils/browser/Cargo.toml
index b58774075b34b..cfceaa143c7be 100644
--- a/utils/browser/Cargo.toml
+++ b/utils/browser/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "browser-utils"
-version = "2.0.0"
+version = "0.8.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "Utilities for creating a browser light-client."
 edition = "2018"
@@ -16,7 +16,7 @@ js-sys = "0.3.34"
 wasm-bindgen = "0.2.57"
 wasm-bindgen-futures = "0.4.7"
 kvdb-web = "0.3"
-service = { version = "2.0.0", package = "sc-service", path = "../../client/service", default-features = false }
+service = { version = "0.8", package = "sc-service", path = "../../client/service", default-features = false }
 network = { package = "sc-network", path = "../../client/network" }
 chain-spec = { package = "sc-chain-spec", path = "../../client/chain-spec" }
 
diff --git a/utils/frame/rpc/support/Cargo.toml b/utils/frame/rpc/support/Cargo.toml
index f26a69cc5fa0c..19451743cd268 100644
--- a/utils/frame/rpc/support/Cargo.toml
+++ b/utils/frame/rpc/support/Cargo.toml
@@ -12,7 +12,7 @@ codec = { package = "parity-scale-codec", version = "1" }
 serde = "1"
 frame-support = { version = "2.0.0", path = "../../../../frame/support" }
 sp-storage = { version = "2.0.0", path = "../../../../primitives/storage" }
-sc-rpc-api = { version = "2.0.0", path = "../../../../client/rpc-api" }
+sc-rpc-api = { version = "0.8", path = "../../../../client/rpc-api" }
 
 [dev-dependencies]
 frame-system = { version = "2.0.0", path = "../../../../frame/system" }
diff --git a/utils/frame/rpc/system/Cargo.toml b/utils/frame/rpc/system/Cargo.toml
index 1a479c54e57d5..39f7735eed682 100644
--- a/utils/frame/rpc/system/Cargo.toml
+++ b/utils/frame/rpc/system/Cargo.toml
@@ -5,7 +5,7 @@ authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
 [dependencies]
-sc-client = { version = "2.0.0", path = "../../../../client/" }
+sc-client = { version = "0.8", path = "../../../../client/" }
 codec = { package = "parity-scale-codec", version = "1.0.0" }
 futures = "0.3.1"
 jsonrpc-core = "14.0.3"
diff --git a/utils/grafana-data-source/Cargo.toml b/utils/grafana-data-source/Cargo.toml
index 76bf7d5988d9a..4487b5359fd0c 100644
--- a/utils/grafana-data-source/Cargo.toml
+++ b/utils/grafana-data-source/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 description = "Grafana data source server"
 name = "grafana-data-source"
-version = "2.0.0"
+version = "0.8.0"
 license = "GPL-3.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
diff --git a/utils/grafana-data-source/test/Cargo.toml b/utils/grafana-data-source/test/Cargo.toml
index 079b49dc8608a..9575866fa8988 100644
--- a/utils/grafana-data-source/test/Cargo.toml
+++ b/utils/grafana-data-source/test/Cargo.toml
@@ -7,7 +7,7 @@ authors = ["Parity Technologies <admin@parity.io>"]
 edition = "2018"
 
 [dependencies]
-grafana-data-source = { version = "2.0.0", path = ".." }
+grafana-data-source = { version = "0.8", path = ".." }
 futures = "0.3"
 futures-timer = "2.0"
 rand = "0.7"