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Relay v1.6.2: added support for bridge-hub-polkadot/1002004 #3010

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Jun 10, 2024
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Relay v1.6.2: added support for bridge-hub-polkadot/1002004 #3010

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7eb710b
typos and more description
bkontur Jun 10, 2024
d8d694f
BHP version 1_002_002->1_002_004 + new codegen from released wasm: ht…
bkontur Jun 10, 2024
f5fa90a
Change relayer to 1.6.2
bkontur Jun 10, 2024
5f02906
Cargo.lock
bkontur Jun 10, 2024
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2 changes: 1 addition & 1 deletion Cargo.lock
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9 changes: 5 additions & 4 deletions RELEASE.md
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Expand Up @@ -15,7 +15,7 @@ To prepare a release:
[`master` branch](https://github.com/paritytech/parity-bridges-common/tree/master);

2. Select release version: go to the `Cargo.toml` of `substrate-relay` crate
([here](https://github.com/paritytech/parity-bridges-common/blob/master/relays/bin-substrate/Cargo.toml#L3))
([here](https://github.com/paritytech/parity-bridges-common/blob/master/substrate-relay/Cargo.toml#L3))
to look for the latest version. Then increment the minor or major version.

**NOTE**: we are not going to properly support [semver](https://semver.org)
Expand Down Expand Up @@ -118,7 +118,7 @@ chain runtimes are changes: `Polkadot`, `Kusama`, `PBH`, `KBH`.

### Adding Support for Updated Chain

When one of involved chains is upgraded, we need to update the relayer code to
When one of the involved chains is upgraded or will be upgraded very soon (e.g., the enactment period ends in a few days), we need to update the relayer code to
support it. Normally it means:

1. Bumping bundled chain versions (`spec_version`, `transaction_version`) in following places:
Expand All @@ -135,7 +135,7 @@ support it. Normally it means:

2. Regenerating bundled runtime wrapper code using `runtime-codegen` binary:

_(You can use the pre-defined `./scripts/regenerate_runtimes.sh` to regenerate all supported runtimes. If you need just a particular runtime, then follow the commands below.)_
_(You can use the pre-defined `./scripts/regenerate_runtimes.sh` to regenerate all supported **already enacted live** runtimes. If you need just a particular runtime or a runtime which is not yet enacted, then follow the commands below.)_

If you can start updated chain node, it could be done using following command
(assuming you're in the root of the repository):
Expand All @@ -155,7 +155,8 @@ Otherwise, you'll need a runtime file. You may download it from:
Then use the following command:
```sh
cd tools/runtime-codegen
cargo run --bin runtime-codegen -- --from-wasm-file rococo_runtime.compact.compressed.wasm > ../../relays/client-rococo/src/codegen_runtime.rs
curl -sL https://github.com/polkadot-fellows/runtimes/releases/download/v1.2.4/bridge-hub-polkadot_runtime-v1002004.compact.compressed.wasm -o bridge-hub-polkadot_runtime-v1002004.compact.compressed.wasm
cargo run --bin runtime-codegen -- --from-wasm-file bridge-hub-polkadot_runtime-v1002004.compact.compressed.wasm > ../../relay-clients/client-bridge-hub-polkadot/src/codegen_runtime.rs
```

**IMPORTANT**: due to [well-known issue](https://github.com/paritytech/parity-bridges-common/issues/2669)
Expand Down
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