Add Ledger team update for 2023-08-18 (#222)

blog/2023-08-18-ledger.md

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+---
+title: Ledger Team Update
+slug: 2023-08-18-ledger
+authors: lehins
+tags: [ledger]
+hide_table_of_contents: false
+---
+
+## High level summary
+
+The ledger team made great progress in advancing Conway era forward. In particular, voting
+for DRep and Stake Pool Operators is now at the state that can be used by downstream
+components. Addition of new ledger state queries makes it possible to verify changes to
+the governance state, such as placement of votes, submission of governance proposals,
+inspecting DRep stake distribution and more. Addition of treasury withdrawals concludes the
+ability to enact all of the governance actions, except for the hard fork initiation.
+
+
+## Low level summary
+
+### Conway progress
+
+* [pull-3577] - Move `PParams` to `GovState`
+* [pull-3609] - Adjust thresholds for sanchonet
+* [pull-3604] - README: update CIP-1694 link
+* [pull-3616] - Switch `TreasuryWithdrawals` to use `RewardAcnt`
+* [pull-3599] - Add governance action well-formedness check
+* [pull-3607] - Rename governance to gov
+* [pull-3601] - Added `DRep` anchors
+* [pull-3615] - Add optional previous `GovActionId` in some `ProposalProcedures`
+* [pull-3596] - Upgradeable families
+* [pull-3625] - Change constitution to use `Anchor`
+* [pull-3592] - Added pulsing incremental computation of the DRep distribution
+* [pull-3523] - Treasury donations
+* [pull-3633] - Prevent state changes on phase2 failure
+* [pull-3634] - Disable serialization of protocolVersion param update
+* [pull-3630] - Implemented DRep refreshing
+* [pull-3640] - Remove crypto parameterization from `AnchorData`
+* [pull-3636] - Implement DRep ratification with an "always passing"; threshold
+* [pull-3648] - Governance queries
+* [pull-3650] - Change environment for `ShelleyPOOLREAP` rule
+* [pull-3658] - Set `DRep` ratify threshold to 51%
+* [pull-3628] - `DELEG`, `POOL`, `GOVCERT` conformance with Spec v0.8
+
+### Testing
+
+* [pull-3619] - Disabled a broken test
+
+### Improvements and releasing
+
+* [pull-3660] - Fix bounds and versions
+* [pull-3661] - Adjust versions, bounds and CHANGELOGs to account for the latest release
+
+[pull-3577]: https://github.com/input-output-hk/cardano-ledger/pull/3577
+[pull-3609]: https://github.com/input-output-hk/cardano-ledger/pull/3609
+[pull-3604]: https://github.com/input-output-hk/cardano-ledger/pull/3604
+[pull-3616]: https://github.com/input-output-hk/cardano-ledger/pull/3616
+[pull-3599]: https://github.com/input-output-hk/cardano-ledger/pull/3599
+[pull-3619]: https://github.com/input-output-hk/cardano-ledger/pull/3619
+[pull-3607]: https://github.com/input-output-hk/cardano-ledger/pull/3607
+[pull-3601]: https://github.com/input-output-hk/cardano-ledger/pull/3601
+[pull-3615]: https://github.com/input-output-hk/cardano-ledger/pull/3615
+[pull-3596]: https://github.com/input-output-hk/cardano-ledger/pull/3596
+[pull-3625]: https://github.com/input-output-hk/cardano-ledger/pull/3625
+[pull-3592]: https://github.com/input-output-hk/cardano-ledger/pull/3592
+[pull-3523]: https://github.com/input-output-hk/cardano-ledger/pull/3523
+[pull-3633]: https://github.com/input-output-hk/cardano-ledger/pull/3633
+[pull-3634]: https://github.com/input-output-hk/cardano-ledger/pull/3634
+[pull-3630]: https://github.com/input-output-hk/cardano-ledger/pull/3630
+[pull-3640]: https://github.com/input-output-hk/cardano-ledger/pull/3640
+[pull-3636]: https://github.com/input-output-hk/cardano-ledger/pull/3636
+[pull-3648]: https://github.com/input-output-hk/cardano-ledger/pull/3648
+[pull-3650]: https://github.com/input-output-hk/cardano-ledger/pull/3650
+[pull-3658]: https://github.com/input-output-hk/cardano-ledger/pull/3658
+[pull-3628]: https://github.com/input-output-hk/cardano-ledger/pull/3628
+[pull-3660]: https://github.com/input-output-hk/cardano-ledger/pull/3660
+[pull-3661]: https://github.com/input-output-hk/cardano-ledger/pull/3661