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Consensus Team Update

· 2 min read
Damian Nadales
Damian Nadales
Consensus Team Lead

High level summary​

  • Ouroboros Leios (Treasury Funding Initiative 4: Ouroboros Leios Implementation):
    • Implemented Leios Endorser Block (EB) inclusion in the consensus layer, adding EB announcement and certification tracking to blocks, along with a SQLite-based backend for querying EBs and certificates (#1921).
  • UTXO-HD (Treasury Funding Initiative 10: LSM including UTXO-HD):
    • Refactored database initialization by modifying mkOpenState in the ImmutableDB and VolatileDB (#1917).
    • Improved performance by caching transaction differences on first execution, addressing a hotspot observed during transaction revalidation on stressed nodes (#1954).
  • Releases and integration (Treasury Funding Initiative 17: Maintenance and Support):
    • Released ouroboros-consensus-2.0.0.0 (#1947) and ouroboros-consensus-3.0.0.0 (#1964).
    • Integrated ouroboros-network-1.1.* (#1943).
    • Integrated the latest consensus packages into cardano-node for the upcoming Node 10.7 release (cardano-node#6402).
  • Testing and documentation (Treasury Funding Initiative 17: Maintenance and Support):
    • Fixed a flaky ChainDB StateMachine test related to iterators (#1948).
    • Replaced the consensus documentation's Introduction page with a comprehensive System Overview, including a C4 Context diagram and clarifications on code organization and era evolution (#1950).