Page History

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• Update reference tests to the latest version and include test for gray glacier
• Gray glacier hard fork
• fcU: Remove check if new finalized is descendant from the previous one
• EngineForkchoiceUpdated: Verify if payload attributes are valid
• Subcommand blocks import throws execption
• Acceptance test for execution engine apis
• MERGE: Rename field random to prevRandao
• MERGE: Rename opcode RANDOM to PREVRANDAO
• MERGE: Add Kiln test vectors
• MERGE: Implement engine_exchangeTransitionConfigurationV1 API
• MERGE: extend semantics of executePayload / newPayload method
• Change payloadId of engine_forkchoiceUpdatedV1 API to fixed 8 bytes

Maintainer GitHub handle: fab-10

Maintainer org: ConsenSys

Query for mainnet label on closed PRs: https://github.com/hyperledger/besu/pulls?q=is%3Apr+author%3Afab-10+is%3Aclosed+label%3Amainnet

Details on mainnet contributions

• Feature: "The Merge" switch to PoS
  
  • Extend block parameter methods to accept 'finalized' and 'safe' as block tags
  • Do not require a minimum block height when downloading headers or blocks
  • Allow to backward sync to request headers back to last finalized block if present or genesis
  • Replace deprecated INVALID_TERMINAL_BLOCK with INVALID lvh 0x0
  • Stop backward sync if genesis block has been reached
  • Fix sync terminal condition, that should stop on difficulty >= TTD
  • Make pandas thread safe
  • Fix: getMixHashOrPrevRandao to return the value present in the block header
  • Stop the BlockPropagationManager when it receives the TTD reached event
  • Fast sync with merge
  • Persist last finalized block hash, prerequisite for The Merge
  • Extend validateAndProcessBlock to return an error message in case of …
  • refactor MergeCoordinator executeBlock to return validation reason
  • Persist last finalized block hash
• Feature: transactions synchronization improvements
  • Skip seen transactions
  • Improve eth/66 support
  • Tune transaction synchronization parameter to adapt to mainnet traffic
• Feature: JSON RPC response streaming
  • Improve closing behavior of JsonResponseStreamer, and make clear it i…
  • Response streaming: stop on IO error and remove queue management
• Code improvements
  • Introduce RocksDbSegmentIdentifier to avoid changing the storege plug…
  • Improve code readability
• Fix: block propagation and synchronization
  • Refactor to async retrieve blocks, and change peer when retrying to get a block
  • Do not exit ChainDownloader in case of a generic CancellationException
• Various
  • Log initial sync stats every 10 secs at max to avoid spamming logs
  • Disable RocksDB TTL compactions
  • Filter Netty native lib errors likewise the pure Java implementation

Features for "The Merge" that I ported on the main branch, but have been originally written by others developers from Consensys on the merge branch.

Code for the following PRs was written by Gary Schulte Justin Florentine Daniel Lehrner Jiri Peinlich

• Execution specific RPC endpoint
• Add components to handle the transition from PoW to PoS
• Add The Merge core components
• Add header validation rules needed to validate The Merge blocks
• Add PostMergeContext that will stop syncing after the swith to PoS
• Rename MergeOptions to MergeConfigOptions to follow the standard
• New MutableBlockchain method rewindToBlock by hash prerequisite for T…
• Merge: extend block creation and mining to support The Merge
• Merge: port of backward sync
• Merge: add terminal block number and hash to genesis config options

Sample of report 

Maintainer github handle: macfarla

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