2.5.4

2.5.4 Chia blockchain 2025-05-28

Version 2.5.4 of the Chia reference client is now available for download. This release includes various performance optimizations for the mempool. Upgrading is strongly recommended for this release.

What's Changed

Added

• Enabled Keccak support in the wallet
• Improved logging and timing around block validation
• Improved logging of block creation

Changed

• Mempool: Optimized removal checking
• Mempool: Optimized and hardened dedup logic
• Mempool: Reject transactions that take too long to validate (2 seconds)

Fixed

• Tighten chia_rs version to >=0.21, <0.22 (Fixes #19613)
• Fixed timelord peak selection to match the full node
• Used monotonic clock for timing functions in harvester (Fixes "does not fit into uint" log errors)