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WebP Express · Version history

WebP Express changelog and version history

Latest version
0.25.16
Oct 18, 2026 (22 days ago)
Releases
93
since 2018
In the last year
7
about one every 51 days
Tested up to
WordPress 6.9.11
PHP 5.6 or later

Releases each year

  • 201816 releases
  • 201942 releases
  • 20208 releases
  • 202112 releases
  • 20224 releases
  • 20233 releases
  • 20241 release
  • 20254 releases
  • 20263 releases

20263 releases

  1. WebP Express 0.25.16Latest

    • (released 18 Oct 2026) * Fixed vulnerability in dom parser library used for altering html. Credit goes to Jakub Herman for discovering the problem. Also fixed a loophole that made it possible to use the web service (if activated) with carefully crafted inputs, even without an api key. Thanks to the…

  2. WebP Express 0.25.15

    • (released 19 May 2026) * Fixed medium security problem with the WPC converter and got rid of some deprecated warnings on newer PHP versions (thanks to hostep from Belgium, dmitryuk from Kazakhstan and AH72KING from Pakistan for those contributions to the webp-convert library)

  3. WebP Express 0.25.14

    • (released 25 December 2025) * Fixed issue that the delete images feature also deleted webp-images that was uploaded as such, when webp-express was configured to store converted images in same folder as originals (not the default option). Also fixed conversion triggered by redirection, which broke o…

20254 releases

  1. WebP Express 0.25.13

    • (released 25 December 2025) * It is no longer a requirement on Nginx to modify redirection rules by adding a “hash” parameter. This was briefly required in 0.25.10-12. Btw, thanks Patrick Müller, for an extraordinary large donation on Christmas Eve – on top of the recent security fix that he origin…

  2. WebP Express 0.25.12

    • (released 22 December 2025) * Added notification for users on Nginx which uses redirect rules to change their rewrite rules manually. They must now pass a “hash” parameter in the querystring to the WebP conversion script. Thanks to Luka Paunović for bringing the issue to my attention and updating t…

  3. WebP Express 0.25.11

    • (released 22 December 2025) * Fixes .htaccess rules for redirecting to converter. The bug was introduced in 0.25.10. It caused the conversion not to work on some systems. Thanks to Jon Wallace for reporting the issue on github and assisting in the debugging.
    • (released 15 December 2025) * Security fix: Config file was exposed on systems running on NGINX. Herr Patrick Müller from Switzerland for creating a patch as well as Rune Philosof from Denmark for improving it. Some credit also goes to myself for perfecting the patch. Sorry for slacking on the main…

  4. WebP Express 0.25.10

20241 release

  1. WebP Express 0.25.9

    • (released 7 April 2024) * Bugfix: Fixed ewww conversion method after ewww API change

20233 releases

  1. WebP Express 0.25.8

    • (released 20 October 2023) * Bugfix: Depreciation warning on PHP 8.2 with Alter HTML. Thanks to @igamingsolustions for reporting the bug

  2. WebP Express 0.25.7

    • (released 19 October 2023) * Bugfix: Removed depreciation warning on settings screen, which was showing in PHP 8.2. Thanks to Rob Meijerink from the Netherlands for providing the fix in a pull request * Bugfix: Removed depreciation warning when converting, happening in PHP 8.2. Thanks to Sophie B f…

  3. WebP Express 0.25.6

    • (released 15 April 2023) * Bugfix: A bug in another plugin can cause delete file hook to be called with an empty string, which WebP Express was not prepared for (fatal exception). Thanks to Colin Frick from Liechtenstein for providing the fix in a pull request on github * Bugfix: Bug when testing i…

20224 releases

  1. WebP Express 0.25.5

    • (released 23 May 2022) * When using the “Prevent using webps larger than original” with Alter HTML (picture tags) on images with srcset, those webps that where larger than the originals was picked out from the srcset for the webp. This could lead to bad quality images. In the fix, the image will on…

  2. WebP Express 0.25.4

    • (released 6 May 2022) * AlterHTML (when using picture tags): Fixed charset problems for special characters in alt and title attributes. The bug was introduced in 0.25.2. Thanks to Cruglk for first pointing this out.

  3. WebP Express 0.25.3

    • (released 4 May 2022) * AlterHTML: Fixed BIG BUG introduced in 0.25.2 (the webp urls was wrong when using picture tags). So sorry! Thankfully, I was quickly made aware of this and quickly patched it.

  4. WebP Express 0.25.2

    • (released 4 May 2022) * AlterHTML did not skip existing picture tags when they contained newlines, resulting in picture tags inside picture tags, which is invalid markup. Thanks to Jonas for being very helpful in solving this.

202112 releases

  1. WebP Express 0.25.1

    • (released 7 dec 2021) * An innocent text file triggered Windows Defender. It has been removed. Thanks to Javad Naroogheh from Iran for notifying

  2. WebP Express 0.25.0

    • (released 7 dec 2021, on my daughters 10 year birthday!) * No exec()? – We don’t give up easily, but now emulates it if possible, using proc_open(), passthru() or other alternatives. The result is that the cwebp converter now is available on more systems. Quality detection of jpegs also works on mo…
    • For older releases, check out changelog.txt

  3. WebP Express 0.24.2

  4. WebP Express 0.24.1

  5. WebP Express 0.23.0

  6. WebP Express 0.22.1

  7. WebP Express 0.22.0

  8. WebP Express 0.21.1

  9. WebP Express 0.21.0

  10. WebP Express 0.20.1

  11. WebP Express 0.20.0

  12. WebP Express 0.19.1

20208 releases

  1. WebP Express 0.19.0

  2. WebP Express 0.18.3

  3. WebP Express 0.18.2

  4. WebP Express 0.18.1

  5. WebP Express 0.18.0

  6. WebP Express 0.17.5

  7. WebP Express 0.17.4

  8. WebP Express 0.17.3

201942 releases

  1. WebP Express 0.17.2

  2. WebP Express 0.17.1

  3. WebP Express 0.17.0

  4. WebP Express 0.16.0

  5. WebP Express 0.15.3

  6. WebP Express 0.15.2

  7. WebP Express 0.15.1

  8. WebP Express 0.15.0

  9. WebP Express 0.14.22

  10. WebP Express 0.14.21

  11. WebP Express 0.14.20

  12. WebP Express 0.14.19

  13. WebP Express 0.14.18

  14. WebP Express 0.14.17

  15. WebP Express 0.14.16

  16. WebP Express 0.14.15

  17. WebP Express 0.14.14

  18. WebP Express 0.14.13

  19. WebP Express 0.14.12

  20. WebP Express 0.14.11

  21. WebP Express 0.14.10

  22. WebP Express 0.14.9

  23. WebP Express 0.14.8

  24. WebP Express 0.14.7

  25. WebP Express 0.14.6

  26. WebP Express 0.14.5

  27. WebP Express 0.14.4

  28. WebP Express 0.14.3

  29. WebP Express 0.14.2

  30. WebP Express 0.14.1

  31. WebP Express 0.14.0

  32. WebP Express 0.13.2

  33. WebP Express 0.13.1

  34. WebP Express 0.13.0

  35. WebP Express 0.12.2

  36. WebP Express 0.12.1

  37. WebP Express 0.12.0

  38. WebP Express 0.11.3

  39. WebP Express 0.11.2

  40. WebP Express 0.11.1

  41. WebP Express 0.11.0

  42. WebP Express 0.10.0

201816 releases

  1. WebP Express 0.9.1

  2. WebP Express 0.9.0

  3. WebP Express 0.8.1

  4. WebP Express 0.8.0

  5. WebP Express 0.7.2

  6. WebP Express 0.7.1

  7. WebP Express 0.7.0

  8. WebP Express 0.6.2

  9. WebP Express 0.6.1

  10. WebP Express 0.6.0

  11. WebP Express 0.5.0

  12. WebP Express 0.4.0

  13. WebP Express 0.3.0

  14. WebP Express 0.3.1

  15. WebP Express 0.2.0.1

  16. WebP Express 0.2.0

Questions about WebP Express’s releases

What is the latest version of WebP Express?

0.25.16, released on Oct 18, 2026 (3 weeks ago). It’s tested up to WordPress 6.9.11 and needs PHP 5.6 or later.

How often is WebP Express updated?

7 releases in the last year, about one every 51 days. Its first release on WordPress.org dates from August 2018.

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