2023-03-31 ledger

blog/2023-03-31-ledger.md

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+---
+title: Ledger Team Update
+slug: 2023-03-31-ledger
+authors: JaredCorduan
+tags: [ledger]
+hide_table_of_contents: false
+---
+
+## High level summary
+
+We are still heavily involved in work related to preparing the next release.
+The other main thing we have worked on is experimentation about how we will
+handle the DRep stake distribution for CIP-1694 in the conway ledger era.
+Lastly, we merged a fix for
+[node-4826](https://github.com/input-output-hk/cardano-node/issues/4826)
+into our main branch (there will be a post-mortem shortly).
+
+## Low level summary
+
+### Support for the next release
+
+* [pull-3363] - Fix problems relating to Arbitrary instances used by consensus.
+* [pull-3361] - Remove the alonze genesis from the conway genesis.
+* [pull-3360] - Translate bad pointer addresses to valid ones in conway.
+* [pull-3357] - Fix a bug relating to zero valued ADA in the script context.
+* [pull-3356] - Added needed instances (Arbitrary and Serialization) for conway integration.
+* [pull-3345] - Added helper functions for the CLI.
+* [pull-3342] - Fix a bug with a CLI helper function (having to do with deposit tracking).
+
+### Experiments for DRep stake distribution
+
+Adding another stake distribution to the ledger state presents some new challenges.
+We would like to be able to use the current stake distribution at the epoch boundary
+for DRep voting so that people can always vote themselves in time for any proposal.
+To this end, we have a prototype of an incremental computation based on the incremental
+lambda calculus, together with tests and benchmarks (which are very promising).
+See [pull-3344].
+
+Additionally, more of the ledger state is going to need to be rearranged to accomodate
+the new incremental computations.
+We have two draft PRs up for possibles solution.
+See [pull-3353] and [pull-3364].
+
+### Technical debt and bug fixes
+
+* [pull-3343] - A fix [node-4826](https://github.com/input-output-hk/cardano-node/issues/4826).
+* [pull-3333] - Moving more code out of the shelley packages. 
+* [pull-3347] - Bug fix for the multi-asset generators.
+* [pull-3341] - Removal of code duplication.
+
+### Documentation changes
+
+* [pull-3354] - Rename "optional datums" with "supplemental datums" in the alonzo spec.
+* [pull-3352] - Add a section to the Shelly errata about the individual deposit tracking.
+* [pull-3351] - Further clarify the details regarding the script integrity hash.
+* [pull-3350] - Some cleanup of the Babbage spec.
+
+
+[pull-3363]: https://github.com/input-output-hk/cardano-ledger/pull/3363
+[pull-3361]: https://github.com/input-output-hk/cardano-ledger/pull/3361
+[pull-3360]: https://github.com/input-output-hk/cardano-ledger/pull/3360
+[pull-3357]: https://github.com/input-output-hk/cardano-ledger/pull/3357
+[pull-3356]: https://github.com/input-output-hk/cardano-ledger/pull/3356
+[pull-3345]: https://github.com/input-output-hk/cardano-ledger/pull/3345
+[pull-3342]: https://github.com/input-output-hk/cardano-ledger/pull/3342
+[pull-3344]: https://github.com/input-output-hk/cardano-ledger/pull/3344
+[pull-3353]: https://github.com/input-output-hk/cardano-ledger/pull/3353
+[pull-3364]: https://github.com/input-output-hk/cardano-ledger/pull/3364
+[pull-3343]: https://github.com/input-output-hk/cardano-ledger/pull/3343
+[pull-3333]: https://github.com/input-output-hk/cardano-ledger/pull/3333
+[pull-3347]: https://github.com/input-output-hk/cardano-ledger/pull/3347
+[pull-3341]: https://github.com/input-output-hk/cardano-ledger/pull/3341
+[pull-3354]: https://github.com/input-output-hk/cardano-ledger/pull/3354
+[pull-3352]: https://github.com/input-output-hk/cardano-ledger/pull/3352
+[pull-3351]: https://github.com/input-output-hk/cardano-ledger/pull/3351
+[pull-3350]: https://github.com/input-output-hk/cardano-ledger/pull/3350