4.0.7 (20 June 2026)
- Confirms support for WordPress 7.0
- Makes improvements to the admin bar menu
- Shows database queries on the timeline even when db.php isn’t in place
- Adds more error highlighting for problems with enqueued JavaScript and CSS dependencies
- Adds some back-compat for old versions of the Chrome browser
4.0.6 (11 April 2026)
Version 4 of Query Monitor adds a new timeline view, and switches from rendering its panels server-side in PHP to efficiently rendering them client-side in Preact.
Version 4.0.6 fixes a compatibility issue with the GeneratePress theme.
More information at querymonitor.com/4.
4.0.5 (10 April 2026)
Version 4 of Query Monitor adds a new timeline view, and switches from rendering its panels server-side in PHP to efficiently rendering them client-side in Preact.
Version 4.0.5 fixes the following:
- Ensures closing script tags within data don’t break the output
- Adds “Doing it Wrong” data to the timeline view
More information at querymonitor.com/4.
4.0.4 (10 April 2026)
Version 4 of Query Monitor adds a new timeline view, and switches from rendering its panels server-side in PHP to efficiently rendering them client-side in Preact.
Version 4.0.4 fixes the following:
- Ensures the Scripts panel remains visible when no scripts are enqueued in the header
- Corrects the display of number formatting in some locales
More information at querymonitor.com/4.
4.0.3 (9 April 2026)
Version 4 of Query Monitor adds a new timeline view, and switches from rendering its panels server-side in PHP to efficiently rendering them client-side in Preact.
Version 4.0.3 fixes the following:
- Improves compatibility with plugins that perform non-UTF8 queries or make other use of non-UTF8 data
- Avoids a PHP warning for undefined file and line number in some stack trace frames
- Simplifies and standardises the format of names used for closure callbacks
- Improves styling and layout of the timeline view
More information at querymonitor.com/4.
4.0.2 (9 April 2026)
Version 4 of Query Monitor adds a new timeline view, and switches from rendering its panels server-side in PHP to efficiently rendering them client-side in Preact.
Version 4.0.2 fixes the following:
- Adds further backwards compatibility for third-party plugins that read from the QM data collectors and output their own panels
- Adds transient updates to the timeline view
More information at querymonitor.com/4.
4.0.1 (7 April 2026)
Version 4 of Query Monitor adds a new timeline view, and switches from rendering its panels server-side in PHP to efficiently rendering them client-side in Preact.
- Version 4.0.1 fixes a backwards compatibility issue with plugins that register their own menus or sub-menus in Query Monitor.
More information at querymonitor.com/4.
4.0.0 (7 April 2026)
Version 4 of Query Monitor adds a new timeline view, and switches from rendering its panels server-side in PHP to efficiently rendering them client-side in Preact. This new approach provides several benefits:
- Performance is greatly increased, particularly on sites where a large number of queries are performed, a large number of PHP errors are triggered, or a large amount of data is collected in one of the other panels.
- Further future enhancements are facilitated, such as displaying client-side metrics, lazy-loading data, showing data from different requests, and more remixing of data into different views.
- The raw data collected by Query Monitor has been reduced in size and memory usage, and is now exposed to the page as JSON. Take a look at the QueryMonitorData object in your browser console to play around with it.
More information at querymonitor.com/4.
3.20.4 (19 March 2026)
3.20.3 (17 March 2026)
- Clicking QM in the the admin toolbar a second time will now close the panel
- Improvements to accessibility of the toggle buttons
- Failed HTTP API GET requests now show a clickable link
Earlier versions
For the changelog of earlier versions, refer to the releases page on GitHub.
