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Ledger Team Update

· 3 min read
Alexey Kuleshevich

High level summary​

Focus has been on testing: adding tests and improving our testing framework to make it easier to write tests for various Conway features. We also did some cleanup and reorganisation of code, to make it more manageable and easier to release. We have started work on Hardfork Initiation: support for intra-era hardfork initiation and necessary updates the SPO stake distribution calculation.

Low level summary​

Conway​

  • pull-4140 - Intra era hardfork initiation
  • pull-4154 - SPO stake distr calc for HardForkInitiation
  • pull-4150 - Add ConwayUtxosPredFailure
  • pull-4162 - Add ConwayDRepIncorrectRefund and tests for GovCert
  • pull-4112 - Fail when conway features are present in transactions that use Plutus v1/v2
  • pull-4164 - Change hot credential representation in CommitteeState
  • pull-4178 - Remove code repetition in Conway era CDDL

Testing​

  • pull-4096 - Add a collection of test Plutus scripts for use in ImpTests
  • pull-4144 - Add imptests for delaying actions enactment
  • pull-4104 - Governance policy tests
  • pull-4123 - Add the ability to do constraints over trees in constrained-generators
  • pull-4163 - Reorganise GovSpec, add GovCertSpec
  • pull-4152 - Add extra type-safety to ensure that all predicate failures have roundtrip tests
  • pull-4172 - Add imptests for some more GOV predicate failures
  • pull-4139 - Add extra time from 1 sec to 2 sec for prop_soundness test.
  • pull-4173 - Update profiling instructions
  • pull-4177 - Plutusv3 initialization tests
  • pull-4155 - Fix nightly build failures

Improvements​

  • pull-4141 - Add boom placeholder
  • pull-4157 - Split Conway governance
  • pull-4188 - Simplify implementation of ToJSON1 of ListMap
  • pull-4129 - Modify PParams to use similar naming to ProtocolParams in cardano-api
  • pull-4160 - Make shelley TxWits consistent with other eras
  • pull-4168 - Add missing InjectFailure instances for ConwayUtxosPredFailure
  • pull-4086 - Change applySTS to return NonEmpty (PredicateFailure s)
  • pull-4176 - Add CARDANO_MAINNET_MIRROR to Nix shell
  • pull-4174 - Convert small-steps-test into a sublibrary
  • pull-4159 - Shelley rules cleanup

Specification​

  • pull-4042 - Fix the prose being inconsistent with the figure
  • pull-4151 - Fix an issue with txinfo and unusual notation in Babbage UTXO rule

Releasing​