Performance Chat Summary: 9 September 2025

The full chat log is available beginning here on Slack.

WordPress Performance Trac tickets

• @westonruter recapped the 6.9 performance roadmap and noted that 6.9-beta1 is scheduled for 21 October 2025, giving six weeks for performance enhancements.
  • @westonruter also shared queries listing the performance issues milestoned for 6.9, including 25 enhancement tickets targeted for 6.9-beta1.
• @westonruter announced that fetchpriority for scripts has now landed in Core #61734.
• @spacedmonkey highlighted that ticket #59592 has landed in Core.
• @westonruter checked on ticket #63045, and @spacedmonkey confirmed it should leverage the new introduced function and pointed to usage examples in PR #8444.
• @spacedmonkey requested feedback on the tickets #63021 and #58001.

Performance Lab Plugin (and other performance plugins)

• @westonruter flagged that the Optimization Detective plugin is overdue for a release but likely won’t ship before 6.9-beta1 due to focus on Core enhancements.
  • @westonruter reminded that getting the 1.0.0 stable release out is blocking next milestone, which includes the work @b1ink0 is doing on URL Metrics priming.

Open Floor

• @mukesh27 inquired about the date of the next bug scrub and @westonruter confirmed it is scheduled for next Tuesday (16 September 2025).

Our next chat will be held on Tuesday, September 23, 2025 at 15:00 UTC in the #core-performance channel in Slack.

#core-performance, #hosting, #performance, #performance-chat, #summary