1.9.21.9.1 is the latest version :
Changelog - Perfmatters
2.6.2 – 04.29.2026 2.6.1 – 04.10.2026 2.6.0 – 03.25.2026 2.5.9 – 02.27.2026 2.5.8 – 02.26.2026 2.5.7 – 02.02.2026 2.5.6 – 01.28.2026 2.5.5 – 12.11.2025 2.5.4 – 11.20.2025 2.5.3 – 11.19.2025 2.5.2 – 10.23.2025 2.5.1 – 09.29.2025 2.5.0 – 08.26.2025 2.4.9 – 08.12.2025 2.4.8 – 08.11.2025 2.4.7 –...perfmatters.io
- Added new perfmatters_used_css filter.
- Added new perfmatters_allow_buffer filter.
- Added a notice in the Script Manager when Testing Mode is enabled.
- Improved reliability of CSS Background Image function when child elements with additional background images are present.
- Script Manager style compatibility fixes.
- Fixed an issue where some post specific meta options were not being respected when determining if a feature should run.
- Fixed an issue where pressing enter on the main plugin settings page would trigger a specific form action instead of save settings.
- Changed CSS class initialization hook to be in the correct order with other output buffer functions.
- Made an adjustment to how we generate the local used stylesheet URL for better compatibility.
- Fixed an issue where loading attribute was still getting applied to images that were excluded from lazy loading.
- Fixed an issue where images inside an excluded picture element were not also getting excluded.
- Fixed an issue in the Script Manager where archives were not being grouped together with their respective post type.
- Additions to plugin UI JavaScript to allow for disabled sections to be hidden even when nested controllers are present.
- Moved background process library to composer autoloader.
- Removed BETA tag from Remove Unused CSS option.
