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@ethereumjs/blockchain v5.1.0
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@holgerd77 holgerd77 released this 23 Feb 08:42
· 3417 commits to master since this release
@ethereumjs/blockchain@5.1.0
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This release introduces Clique/PoA support for the Blockchain library, see the main PR #1032 as well as the follow-up PRs #1074 and PR #1088.

The blockchain package now keeps track of the latest signers and votes on new Clique/PoA signers and saves them to DB. Block format validation is now also taking all the Clique/PoA specifics into account (extraData format and other formal requirements from the EIP) and consensus validation is now also working for Clique/PoA chains (this verifies the respective block signatures from the corresponding authorized signers) and can be activated with the validateConsensus constructor flag. There is a new public method Blockchain.cliqueActiveSigners() to get the currently active signer list.

Other Features/Changes

  • Added optional maxBlocks parameter to Blockchain.iterator() method, PR #965
  • Blockchain.iterator() now returns a number (instead of void) with the blocks actually iterated (the Blockchain interface allows for both for backwards-compatibility reasons for now, void is considered deprecated though), PR #1065
  • Blocks in the blockchain package are now always created with the hardforkByBlockNumber option set to true to avoid inconsistencies in block behavior, PR #1089
  • New Blockchain.setHead(tag: string, headHash: Buffer) method to set a specific iterator head to a certain block, PR #965
  • Added debug logger integration, first blockchain:clique debug logger (see README), PR #1103
  • Fixed a bug in the validation logic to only validate the block header if a header is passed to the internal Blockchain._putBlockOrHeader() function, PR #1105
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