2.5.3

Version 2.5.3 of the Chia reference client is now available for download! This release includes several changes focused on improving mempool efficiency, code cleanup, and dependency updates.

2.5.3 Chia blockchain 2025-03-25

What's Changed

Added

• Add config constant support to chia db validate
• Add names to threads in ThreadPoolExecutor
• Add cache for get_unspent_lineage_info()

Changed

• Mempool: Create a mempool item out of a copy of the input one when processing fast forward spends
• Mempool: Validate fast forward spends before adding their spend bundle to the mempool
• Mempool: make the super set rule stricter
• Mempool: Add increment to skipped_items if we hit an Exception in mempool
• Mempool: harden mempool fast-forward feature
• Mempool: improve fast forward mempool eviction
• Migrate puzzles away from load_clvm to import from chia_puzzles_py
• Add singleton records to action scopes
• Swap out Payment for CreateCoin
• Remove old offer guards
• Delete unused chia/simulator/simulator_constants.py
• Port test_dl_wallet.py to WalletTestFramework
• chia.types no longer depends upon chia.protocols
• Standardize the Wallet API for generate_signed_transaction
• Bring VCWallet.generate_signed_transaction into conformity
• Add generate_signed_transaction to WalletProtocol
• Refactor create_block_generator
• bump chia_rs to 0.21.1
• bump anyio to 4.8.0
• bump boto3 to 1.37.1
• bump filelock to 3.9
• bump keyring to 25.6.0

Fixed

• Allow coin selection of 0 value coins
• Add some extra safety into create_message_spend
• check on import that assertions are working
• chore: fix some typos (thanks @lencap)
• chore: fix 404 status URL (thanks @peicuiping)
• Assert height to hash in contains block
• Add DNS-based fallback for original introducer

Removed

• Removed n-weso algorithm. Timelords use either 2-weso or H/W
• Removed unused proof-of-concept DAO wallet