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HARDFORK-CHECKLIST.md

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Non-exhaustive checklist for integrating new changes for an upcoming hard fork/devnet

Introducing new EIP types or changes to primitive types

  • Make required changes to primitive data structures on alloy
  • All new EIP data structures/constants/helpers etc. go into the alloy-eips crate at first.
  • New transaction types go into alloy-consensus
  • If there are changes to existing data structures, such as Header or Block, apply them to the types in alloy-consensus (e.g. new request_hashes field in Prague)

Engine API

  • If there are changes to the engine API (e.g. a new engine_newPayloadVx and engine_getPayloadVx pair) add the new types to the alloy-rpc-types-engine crate.
  • If there are new parameters to the engine_newPayloadVx endpoint, add them to the ExecutionPayloadSidecar container type. This types contains all additional parameters that are required to convert an ExecutionPayload to an EL block.

Reth changes

Updates to the engine API

  • Add new endpoints to the EngineApi trait and implement endpoints.
  • Update the ExecutionPayload + ExecutionPayloadSidecar to Block conversion if there are any additional parameters.
  • Update version specific validation checks in the EngineValidator trait.