This Mantis release includes several bug fixes around synchronization process (fast-sync, regular sync and state download); ability to capture several performance metrics, initial setup for Keccak-256 mining support and several other improvements

This release contains Checkpointing (ECIP-1097) and proto-Treasury (ECIP-1098) deactivated as they have not reached community consensus yet

New features

Checkpointing ECIP-1097

• Return only the child of the checkpoint block (#958)
• [ETCM-389] Move checkpoint creation to the checkpoint service (#955)
• [ETCM-645] Add test for checkpointing (#931)
• [ETCM-655] Extend checkpointing_getLatestBlock RPC call with argument for parent checkpointed block (#942)
• Several Checkpoint fixes (#930)
• [FIX] Block fetcher failing test fix (#889)
• [FIX] Processing checkpoint blocks by fetcher (#866)
• [ETCM-670] Handling checkpoint older than local best block (#930)
• [ETCM-675] Delay reorganisation after importing internal checkpoint (#942)

Keccak-256 ECIP 1049

• [ETCM-746] Added support for PoW with Keccak-256 (ECIP-1049) (#960)

Performance measurement

• [ETCM-535]Add metrics config in the package build (#898)
• [ETCM-715] Add new network metric (tried.peers) (#959)
• [ETCM-571] Add timing metric taken to evaluate a submitted PoW (#932)
• [ETCM-573] Add timing metrics on block imports (#919)
• [ETCM-555] Add timing metrics download blocks (headers, bodies and receipts) and MPT nodes.
• [ETCM-556] Add metric for FastSync total time and update docker-compose Grafana dashboard (#907)
• [ETCM-528] Block creation metrics (#904)

Other

• Upgrade rocksdbjni version (#928)
• [ETCM-468] JSON-RPC getProof for membership (#926)
• [ETCM-533] JSON-RPC getProof for NON membership (#899)
• [Chore] Bump scalanet version (#896)
• [ETCM-129] Scala 2.13 (#875)
• Include PPoW info in BlockResponse (#867)
• [ETCM-680] Retesteth in Nix and on CI (#965)
• [ETCM-697] Implement endpoints for retesteth (#965) (#966)

Improvements

• [ETCM-739] Refactor BlockFetcher (#976)
• ETS integration RPC endpoints (#966)
• ETCM-[165, 166]: Publish the RLP and Crypto libraries to Sonatype (#933 )
• [ETCM-709] Improve ommers validations (#948)
• [ETCM-631] Create peerId from node's public key (#957)
• [ETCM-685] Improve pivot block selection (#949)
• [ETCM-521] Fast sync integration tests (#944)
• [ETCM-716] Read block headers to work queue in case of errors (#943)
• [ETCM-313] and [ETCM-316]: Header skeleton using new branch resolver (#892)
• [ETCM-689] Update state sync and pivot block selector to use new blacklist (#935)
• [ETCM-541] UPnP port mapping to aid in peer discovery & connection (#929)
• [ETCM-531] Cache-based and thread-safe blacklist implementation (#921)
• [ETCM-147] Use explicitly triggered scheduler for SyncControllerSpec (#916)
• [ETCM-540] Improve peer discovery algorithm (#903)
• [ETCM-463] Add PeerStatisticsActor to track message counts (#849)
• [ETCM-446] Connection limit ranges (#833)
• [ETCM-448] Json rpc - status code (#836)
• [ETCM-295] Akka monitoring (#879)
• [ETCM-674] Added headers consistency with ready blocks (#930)
• [ETCM-266] Handle lack of twitter util-collection (#873)
• [ETCM-720] Added tests for mining block on beginning or end of epoch (#950)

Resolved issues

• [ETCM-797] Implement a correct seed calculation for block validation (#974)
• [ETCM-732] Handle missing state node in regular sync after fast sync is done (#961)
• [ETCM-719] Fix calculating of skeleton headers limit (#951)
• [ETCM-678, 660] Fix for removing chain after the node restart (#940)
• [ETCM-636] Null pointer in prod on getBestBlock ( #925)
• [ETCM-626 ] Unsafe use of Option.get causes node desync (#924)
• [ETCM-546] Fix unsafe usage of maxBy (BlockQueue) (#910)
• [ETCM-472] Fix missing status code (#10)
• [FIX] Fix concurrency issue that allowed multiple miners instantiation (#909)

Config

• Fix the update-nix script (#954)
• Add Nix Flake (#936)
• [ETCM-601] Add pub key to allowed miners (#918)
• [ETCM-480] add /buildinfo to insomnia workspace (#913)
• More logging in RegularSync and PeersClient (#911)
• [ETCM-491] Use etc.conf as default config file (#880)
• [ETCM-493] Increase eth_syncing ask timeout (#878)

Known issues

• If an RPC request involving the “latest block” is underway at the exact same time a new block is imported, the request may fail

Zip sha256 checksum

f7a98093fab74e4c481cd156c60ea51efe7653a40346b3b252ff94f5db696d4a mantis-3.2.2.zip