Core Performance Team Update – December 22, 2022

Performance Lab

Performance Lab plugin updates are released monthly on the third Monday of the month.

December’s release, v1.8.0, included two new modules: a new experimental SQLite integration module (see call for testers here) as well as a new experimental `fetchpriority` module, which adds the `fetchpriority` attribute of `high` to the LCP (or first large) image on a page to improve the page’s LCP. It also includes the implementation of the `Server-Timing` API into the plugin’s infrastructure.

Proposals and Discussion

Performance Team chats are held weekly on Tuesdays; check for current time.

The team is focusing on planning and prioritization for 2023. A roadmap will be shared in the new year.


In addition to Performance Lab, the Performance Team also works on performance-related tickets in coreCore Core is the set of software required to run WordPress. The Core Development Team builds WordPress. and holds a monthly Bug Bash on the first Wednesday of every month; check for current time.

The team continues to work on several priority tickets for 6.2, including #54221, #55942, #22951, #56350, and #16502

In addition, @spacedmonkey, with support from @flixos90, continues to work with members of the GutenbergGutenberg The Gutenberg project is the new Editor Interface for WordPress. The editor improves the process and experience of creating new content, making writing rich content much simpler. It uses ‘blocks’ to add richness rather than shortcodes, custom HTML etc. team on several improvements to the `theme.jsonJSON JSON, or JavaScript Object Notation, is a minimal, readable format for structuring data. It is used primarily to transmit data between a server and web application, as an alternative to XML.` APIs.