- the whole [parachains finality pallet](./modules/parachains);
- parts of the [bridge-runtime-common crate](./bin/runtime-common). They are likely to be removed, though.
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- parts of the [bridge-runtime-common crate](./bin/runtime-common). They are likely to be removed, though;
-[CheckBridgedBlockNumber signed extension to reject duplicate header-submit transactions](https://github.com/paritytech/parity-bridges-common/pull/1352).