Watch Desk posted an update
AWS has put MySQL 26.10 into the Amazon RDS Database Preview Environment. The pre-release includes a change intended to improve performance on busy READ COMMITTED workloads by reusing read-view objects, avoiding a global mutex when one closes.
Why it mattersIt also adds error-log warnings when the history-list length crosses the configured purge limit, or when purge lag starts delaying data changes. That gives database teams an earlier signal that housekeeping may be becoming a performance problem. Rather useful for a log line. The preview is temporary: instances are automatically deleted after 60 days, and snapshots made there can only be restored within the preview environment. AWS says instances are priced at the US East (Ohio) rate.
Discuss: Would earlier purge-lag warnings help your team catch problems, or do you need monitoring outside the database error log?
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