TiDB Operator 1.6.5 Release Notes

Release date: February 6, 2026

TiDB Operator version: 1.6.5

New features

• Support configuring VolumeAttributesClass for TiDBCluster components, which enables dynamic management of volume attributes such as IOPS and throughput (#6568, @WangLe1321)

Improvements

• Change the shell interpreter for backup-related scripts from sh to bash to improve script compatibility and support Bash-specific syntax (#6618, @liubog2008)

Bug fixes

• Fix the issue that the controller retries indefinitely when a log backup task cannot be found in etcd. The controller now updates the Backup CR status to Failed in this case (#6630, @RidRisR)
• Fix the compatibility issue with certain Kubernetes versions (such as v1.33) that causes TiDB Operator to repeatedly attempt creating existing resources during each sync cycle (#6653, @cicada-lewis)