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Ledger Team Update

· 2 min read
Alexey Kuleshevich

High level summary​

This period Ledger team has implemented an improvement to withdrawals predicate failure reporting, that will become available with next intra-era hardfork. We've also experimented with a potential representation in Haskell for transaction levels relateed to CIP-118: sub-transactions vs top level transactions. Besides that we did some more code cleanup and made further improvements to the test suite.

Aside from development work there was Ledger team presence at the Node Diversity workshop, which included relevant people from all of the alternative Node implementations that are currently under development.

Low level summary​

Features​

  • PR-5281 - Added FromJSON instance for PParamUpdates
  • PR-5291 - Move withdrawals to LEDGER PV 11 onwards
  • PR-5297 - Remove UMap

Testing​

  • PR-5195 - Refactor some parts of cardano-ledger-conformance to prepare for Dijkstra
  • PR-5288 - Update fls and fix conformance build
  • PR-5289 - Add Dijkstra CddlSpec
  • PR-5285 - Added a new test Plutus script
  • PR-5280 - Small refactoring of impSatisfyNativeScript to avoid duplication
  • PR-5293 - Enable epoch boundary hook in conformance
  • PR-5303 - Migrate constrained-generators docs to its own repo

Infrastructure and releasing​

  • PR-5286 - Post release process changelog version bumps
  • PR-5283 - Use the "union" merge driver for changelogs
  • PR-5290 - Update version and CHANGELOG of cardano-ledger-core
  • PR-5287 - Fixup random 1.3 compatibility
  • PR-5307 - Fix CHANGELOG files