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NOTES.md

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Changed

  • [EVM] Use TxHash to allow predictable sequence numbers for account creation (allows proposal mechanism to aggregate transactions and execute in a BatchTx) - pull request
  • [State] Introduced MutableForest and change state layout to a streaming model that amongst other things should not blow the GRPC message size for large transactions
  • [Consensus] Upgraded Tendermint to v0.30.1
  • [State] Upgraded IAVL to v0.12.1
  • [EVM] Integration tests upgraded to Solidity 0.5.4
  • [State] All state now stored in merkle tree via MutableForest
  • [State] Full validator state history stored in forest
  • [Vent] Updated EventSpec table specification configuration format
  • [Vent] Added support for managing Postgres triggers

Fixed

  • [Transactor] Reduce TxExecution subscription overhead
  • [Transactor] Remove excessive debug subscription timeout
  • [State] Fixed issue with check-pointing that could cause divergent AppHash across node restarts- pull request
  • [EVM] Implemented BLOCKHASH opcode
  • [EVM] Used correct callee STATICCALL to fix cross-contract queries
  • [Consensus] Guarded against total validator power overflow (as limited by Tendermint)

Added

  • [EVM] Implemented CREATE2 opcode
  • [EVM] Implemented EXTCODEHASH opcode
  • [Accounts] Add account GetStats to query endpoint
  • [Config] Expose AddrBookStrict from Tendermint
  • [Deploy] burrow deploy now prints events generated during transactions
  • [Deploy] burrow deploy can use key names where addresses are used
  • [Governance] Added threshold-based governance via Proposal mechanism which allows entities with Root permission to propose and vote on batches of transactions to be executed on a running network with no single entity being able to do so.
  • [Governance] Added command line and query introspection of proposals as well as burrow deploy support
  • [Vent] Merged Vent our SQL projection and mapping layer into the Burrow repository and binary via 'burrow vent'. See Vent Readme
  • [State] Improved read-write separation with RWTree and ImmutableForest data structures
  • [State] Implemented dump/restore to port state between different version of Burrow or to compress the execution of a chain (with a proof) onto a fresh chain