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Query Monitor · Version history

Query Monitor changelog and version history

Latest version
4.1.1
Oct 27, 2026 (14 days ago)
Releases
115
since 2013
In the last year
14
about one every 25 days
Tested up to
WordPress 7.1.4
PHP 7.4 or later

Releases each year

  • 20138 releases
  • 20146 releases
  • 20159 releases
  • 201612 releases
  • 20177 releases
  • 20187 releases
  • 201911 releases
  • 20207 releases
  • 20216 releases
  • 20226 releases
  • 202311 releases
  • 20246 releases
  • 20257 releases
  • 202612 releases

202612 releases

  1. Query Monitor 4.1.1Latest

    • Shows the toolbar menu on small screens again
    • Calls any previously registered PHP error handler, and passes fatal errors on to PHP after displaying them so they’re logged
    • Prevents infinite recursion when a backtrace is constructed from within a hook
    • Fixes a fatal error and warnings when an HTTP request is short-circuited via the pre_http_request filter
    • Clarifies the warning shown for short-circuited HTTP requests
    • Correctly handles closures in call stacks on PHP 8.4+
    • Doesn’t show Query Monitor on the login page when reauthentication is required
    • Compatibility with script concatenation and asset URL changes in WordPress 7.2
    • Fixes panels failing to render when the data contains invalid UTF-8

  2. Query Monitor 4.1.0

    • Confirms support for WordPress 7.1 (better late than never)
    • Shows the file size of enqueued scripts and styles
    • Improves the styling of the admin toolbar menu and the nav menu
    • Explains why database queries were performed but none were logged
    • Deletes the db.php drop-in when Query Monitor is deactivated with WP-CLI
    • Avoids warnings when a preempted HTTP response is missing its code or message

  3. Query Monitor 4.0.7

    • 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. Query Monitor 4.0.6

    • 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.
    • More information at querymonitor.com/4.

  5. Query Monitor 4.0.5

    • 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.
    • 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.

  6. Query Monitor 4.0.4

    • 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.
    • 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.

  7. Query Monitor 4.0.3

    • 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.
    • 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.

  8. Query Monitor 4.0.2

    • 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.
    • 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.

  9. Query Monitor 4.0.1

    • 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.

  10. Query Monitor 4.0.0

    • 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.
    • For the changelog of earlier versions, refer to the releases page on GitHub.

  11. Query Monitor 3.20.4

  12. Query Monitor 3.20.3

20257 releases

  1. Query Monitor 3.20.2

  2. Query Monitor 3.20.1

  3. Query Monitor 3.20.0

  4. Query Monitor 3.19.0

  5. Query Monitor 3.18.0

  6. Query Monitor 3.17.2

  7. Query Monitor 3.17.1

20246 releases

  1. Query Monitor 3.17.0

  2. Query Monitor 3.16.4

  3. Query Monitor 3.16.3

  4. Query Monitor 3.16.2

  5. Query Monitor 3.16.1

  6. Query Monitor 3.16.0

202311 releases

  1. Query Monitor 3.15.0

  2. Query Monitor 3.14.1

  3. Query Monitor 3.14.0

  4. Query Monitor 3.13.1

  5. Query Monitor 3.13.0

  6. Query Monitor 3.12.3

  7. Query Monitor 3.12.2

  8. Query Monitor 3.12.1

  9. Query Monitor 3.12.0

  10. Query Monitor 3.11.2

  11. Query Monitor 3.11.1

20226 releases

  1. Query Monitor 3.11.0

  2. Query Monitor 3.10.1

  3. Query Monitor 3.10.0

  4. Query Monitor 3.9.0

  5. Query Monitor 3.8.2

  6. Query Monitor 3.8.1

20216 releases

  1. Query Monitor 3.8.0

  2. Query Monitor 3.7.1

  3. Query Monitor 3.7.0

  4. Query Monitor 3.6.8

  5. Query Monitor 3.6.7

  6. Query Monitor 3.6.6

20207 releases

  1. Query Monitor 3.6.5

  2. Query Monitor 3.6.4

  3. Query Monitor 3.6.3

  4. Query Monitor 3.6.2

  5. Query Monitor 3.6.1

  6. Query Monitor 3.6.0

  7. Query Monitor 3.5.2

201911 releases

  1. Query Monitor 3.5.1

  2. Query Monitor 3.5.0

  3. Query Monitor 3.4.0

  4. Query Monitor 3.3.7

  5. Query Monitor 3.3.6

  6. Query Monitor 3.3.5

  7. Query Monitor 3.3.4

  8. Query Monitor 3.3.3

  9. Query Monitor 3.3.2

  10. Query Monitor 3.3.1

  11. Query Monitor 3.3.0

20187 releases

  1. Query Monitor 3.2.2

  2. Query Monitor 3.2.1

  3. Query Monitor 3.2.0

  4. Query Monitor 3.1.1

  5. Query Monitor 3.1.0

  6. Query Monitor 3.0.1

  7. Query Monitor 3.0.0

20177 releases

  1. Query Monitor 2.17.0

  2. Query Monitor 2.16.2

  3. Query Monitor 2.16.1

  4. Query Monitor 2.15.0

  5. Query Monitor 2.14.0

  6. Query Monitor 2.13.4

  7. Query Monitor 2.13.3

201612 releases

  1. Query Monitor 2.13.2

  2. Query Monitor 2.13.1

  3. Query Monitor 2.13.0

  4. Query Monitor 2.12.0

  5. Query Monitor 2.11.4

  6. Query Monitor 2.11.3

  7. Query Monitor 2.11.2

  8. Query Monitor 2.11.1

  9. Query Monitor 2.11.0

  10. Query Monitor 2.10.0

  11. Query Monitor 2.9.1

  12. Query Monitor 2.9.0

20159 releases

  1. Query Monitor 2.8.1

  2. Query Monitor 2.8.0

  3. Query Monitor 2.7.4

  4. Query Monitor 2.7.3

  5. Query Monitor 2.7.2

  6. Query Monitor 2.7.1

  7. Query Monitor 2.7.0

  8. Query Monitor 2.6.10

  9. Query Monitor 2.6.9

20146 releases

  1. Query Monitor 2.6.8

  2. Query Monitor 2.6.7

  3. Query Monitor 2.6.6

  4. Query Monitor 2.6.5

  5. Query Monitor 2.6.4

  6. Query Monitor 2.6.3

20138 releases

  1. Query Monitor 2.6.2

  2. Query Monitor 2.6.1

  3. Query Monitor 2.6

  4. Query Monitor 2.5.6

  5. Query Monitor 2.5.5

  6. Query Monitor 2.5.4

  7. Query Monitor 2.5.3

  8. Query Monitor 2.5.2

Questions about Query Monitor’s releases

What is the latest version of Query Monitor?

4.1.1, released on Oct 27, 2026 (2 weeks ago). It’s tested up to WordPress 7.1.4 and needs PHP 7.4 or later.

How often is Query Monitor updated?

14 releases in the last year, about one every 25 days. Its first release on WordPress.org dates from November 2013.

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Release dates come from the day each version’s folder was made in Query Monitor’s WordPress.org SVN repository; the notes from its readme’s changelog, as its authors wrote it.