2.5.5 changelog (#19967)

* Update changelog for 2.5.5

* thanks arvid

Co-authored-by: Arvid Norberg <[email protected]>

* thanks arvid

Co-authored-by: Arvid Norberg <[email protected]>

* prettier

* Fix the command formatting and allow it to be copied conveniently.

* thanks amine

---------

Co-authored-by: Arvid Norberg <[email protected]>
Co-authored-by: Amine Khaldi <[email protected]>

Author: 3 people

CHANGELOG.md

@@ -6,6 +6,109 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project does not yet adhere to [Semantic Versioning](https://semver.org/spec/v2.0.0.html)
 for setuptools_scm/PEP 440 reasons.
 
+## 2.5.5 Chia blockchain 2025-08-19
+
+Note that protocol changes between node, farmer, and harvester will require all entities to be upgraded
+at the same time to 2.5.5. On a simple one machine setup, this will be handled by the installer.
+But if you have more complicated topologies with remote farmers or harvesters, you will need to upgrade
+all components.
+
+2.5.5 will also make changes to the blockchain database that are incompatible with previous versions. If you
+run 2.5.5 but later wish to downgrade to an earlier version, you will need to downgrade your database schema by
+running the following command:
+
+```
+python -c "import sqlite3, sys, os; conn = sqlite3.connect(os.path.expanduser(sys.argv[1])); cursor = conn.execute('UPDATE coin_record SET spent_index = 0 WHERE spent_index = -1'); print(f'Updated {cursor.rowcount} records'); conn.commit(); conn.close()" <path to the db>
+```
+
+Replacing `<path to the db>` with your actual database path.
+
+## What's Changed
+
+### Added
+
+- Add `chia dev mempool` CLI commands to import, export, and benchmark the mempool
+- Add new error logging if the block cost fails to compute
+- Add dicts to streamable
+- Add independant Full Node RPC Validation Tool (`tools\validate_rpcs.py`)
+- Add Revocable CAT support to wallet (Chip 38)
+- Add mempool optimizations and fixes in spend deduplication and singleton fast forward.
+- Add mempool vault fast forward support
+- Add unit tests to cover singleton fast forward dynamics
+- Add new optional block creation algorithm to maximize transactions (set config.yaml `full_node:block_creation` to `1`)
+- Add new config setting for block creation timeout (`full_node:block_creation_timeout`)
+- Add preparation for new plot format and expected hard fork (Chip 48)
+- Add canonical CLVM serialization requirement after expected hard fork
+
+### Changed
+
+- Harvester<->Farmer protocol change: compute plot filter on the harvester (Chip 48 prep)
+- Farmer<->Node protocol change (Chip 48 prep)
+- Backwards incompatible schema change for mempool fast-forward support
+- Remove problematic `coins_added_at_height_cache` cache
+- Remove no longer needed `item_inclusion_filter` in the mempool
+- Significantly speedup mempool manager tests by not forcing them to request unneeded fixtures
+- Refactor and add test for WSM puzzle hash endpoints
+- Removed unneeded call to compute block cost
+- Add puzzle hash generation to action scopes
+- Remove direct secret key access from pool wallet
+- Add ContextManager to FullNodePeers
+- Simplify DB checks in `invariant_check_mempool`
+- log how long it took to call `peak_post_processing_2`
+- move `chia.types.aliases` to `chia.server.aliases`
+- move tx processing queue entry classes
+- Improve the serialisation of AddressManager
+- Remove the dependency of `chia.consensus` on the module `chia.types`
+- Adapt `test_check_removals_with_block_creation` to cover both block generator creation versions
+- Use upstream miniupnpc 2.3.3
+- Don't return addition coin records in CoinStore's new_block
+- Avoid recomputing coin record names in `rollback_to_block` when we have access to them
+- move sp broadcast outside of blockchain mutex
+- use `pyproject.toml` `[project]` section (again)
+- Simplify `test_set_spent`
+- Leverage `execute_fetchall` in CoinStore's `rollback_to_block`
+- Insert DB values in CoinStore's `new_block` without creating coin records
+- Also log the VDF field being compacted (thanks @xearl4)
+- Avoid recomputing coin IDs in `run_new_block_benchmark`
+- Simplify `test_rollback`
+- Extract `_add_coin_records` out of CoinStore and simplify it
+- Simplify `test_num_unspent`
+- Simplify `test_basic_coin_store`
+- Optimize rolled back state construction in `_reconsider_peak`
+- Leverage CoinStore's `new_block` in SpendSim's `farm_block` instead of custom coin store manipulation
+- Port NFT, pooling, DID, and Datalayer RPCs to `@marshal` decorator
+- Simplify SpendSim's `farm_block`
+- Migrate away from `clvm` imports
+- Pass coin IDs from Blockchain's `_reconsider_peak` to CoinStore's `new_block` to avoid recomputing them
+- Unify fork peak and reward coins handling between ForkInfo's `include_spends` and `include_block`
+- Replace `CATWallet.create_new_cat_wallet` in `test_cat_wallet.py`
+- Change minimium node version to 20 and npm version to 10
+- Timelord: dont skip same peak if in unfinished cache
+- Set app minimum macos version to macOS 13
+- Bump `chia-rs` to `0.27.0`
+- Bump `chiavdf` to `1.1.11`
+- Bump `clvm` to `0.9.14`
+- Bump `clvm-tools-rs` to `0.1.48`
+
+### Fixed
+
+- Enable keccak softfork in the wallet (fixes #19480)
+- Add some checks when trying to join the same pool already joined (fixes #7592)
+- Allow DIDs from other wallets with NIL recovery lists (fixes #18947)
+- Set AGG_SIG_ME_ADDITIONAL_DATA in config.yaml for simulator
+- use index when fetching SP
+- redact daemon websocket message logging
+- less response failure error consumption
+- Fixed some typos in comments (thanks @timesince)
+- Fixed more typos in comments (thanks @racerole)
+- Fixed yet more typos in comments (thanks @yetyear)
+- Fixed typo in CONTRIBUTING.md (thanks @ctrlaltdel)
+
+### Removed
+
+- Testing and support for Ubuntu LTS 20.04
+- Testing and support for Debian 11 "Bullseye"
+
 ## 2.5.4 Chia blockchain 2025-05-28
 
 ## What's Changed