Upgrade urgency LOW: This is the first release of Valkey 8.0, which includes stability and performance improvements over the second release candidate. This release is fully compatible with Redis OSS 7.2.4.

Logging and Tooling Improvements

• Added full client info to SHUTDOWN and CLUSTER FAILOVER logs for better traceability of requests. (#875)

Bug fixes

• Resolved issues in replicationSetPrimary where the primary node's IP/port updates were not correctly handled in the cluster gossip section. (#965)
• Fixed AOF base suffix during rewrites when modifying the aof-use-rdb-preamble setting, ensuring correct suffix caching to prevent inconsistencies. (#886)
• Addressed rare crashes in async IO threads with TLS by preventing concurrent read and write job overlap. (#1011)
• Prevented AOF from being incorrectly disabled after loading RDB data, ensuring proper re-enabling of AOF. (#1001)
• Triggered a save of the cluster configuration file before shutdown to prevent inconsistencies caused by unsaved node configuration changes. (#822)
• Fixed timing issue in CLUSTER SETSLOT to ensure replicas handle migration correctly when receiving the command before the gossip update. (#981)

Performance

• Optimized the handling of temporary set objects in SUNION and SDIFF commands, resulting in a 41% performance improvement for SUNION and 27% for SDIFF. (#996)

Behavior Changes

• Replicas now flush old data after checking RDB file is valid during disk-based replication, preventing partial data loss and ensuring a clean data load. (#926)