Download Perfmatters – Lightweight WordPress Performance Plugin v2.6.6

List of improvements in Perfmatters – Lightweight WordPress Performance Plugin version 2.6.6

• = 2.6.6 07.09.2026 =
• Improved code snippet docblock parsing to use UTF-8 aware regex when reading snippet metadata.
• Improved reliability of snippet metadata parsing across different server environments.
• Fixed an issue with multiline code snippet descriptions not saving properly.
• Fixed an issue where the database optimization process button spinner was getting stuck without reloading the page.
• Translation updates.
• = 2.6.5 06.30.2026 =
• Added new perfmatters_rucss_delay_stylesheets filter which allows you to delay a specific stylesheet already excluded from used CSS.
• Added new load behavior option to delay CSS code snippets using the file print method.
• Added new code snippet URL-based conditions for path contains, path equals and path regex.
• Added additional support to code snippet search to allow the search value to match on the code input itself.
• Added default sort order controls to code snippet screen options.
• Made a change to allow an image tag with a missing src attribute to still be able to lazy load if it has a valid srcset attribute.
• Adjusted main code menu behavior to return to return to the base code view if selected while viewing a single code snippet.
• Fixed utility attribute encoding so certain characters are preserved instead of being converted to HTML entities.
• Fixed a possible JavaScript conflict with minimal analytics declaring variables in the global scope. The script is now wrapped in an IIFE for compatibility.
• Security update to improve escaping of Code Snippets list table admin links built from the current request URL.
• Security updates to add domain verification and content type validation to local Google fonts feature when downloading remote files.
• Translation updates.
• = 2.6.4 06.01.2026 =
• Security updates to improve PMCS admin output sanitization and query handling across snippet editor and list views.
• Translation updates.
• = 2.6.3 05.27.2026 =
• Added new Shortcode option when choosing a location for HTML code snippets.
• Added new code option to select the Editor Theme along with the ability to upload a custom CodeMirror 5 theme stylesheet.
• Added base64 encoding to exported code snippets to prevent import requests from being blocked by certain firewalls. Previously exported code snippet JSON files can still be imported.
• Added new Location helper class to store shared logic to parse and match string based location input fields throughout the plugin.
• Added the ability to use the ‘front’ keyword in location input fields to always match the front page of the site.
• Added additional lazy loading compatibility styles specifically for iframes placed inside Elementor text and HTML elements.
• Adjusted Script Manager Global View rows to always display multiple post IDs in ascending order.
• Multiple styling adjustments and fixes throughout the plugin UI.
• Made some changes to how certain UI elements trigger a forced reload in response to specific actions to make things less jarring.
• Fixed an issue where our compatibility styles for a lazy loaded video inside a responsive embed could break the layout if the core block library stylesheet was disabled.
• Fixed an issue where code type selection for individual code snippets was still visible even after saving.
• Fixed an issue where the next page buttons in the snippets table was still showing as active even when viewing the last page.
• Fixed an issue where stylesheets with protocol-relative URLs were not getting parsed for used CSS.
• Disabled lint markers for HTML code snippets, as they do not currently work for combined HTML and inline PHP code.
• Removed unnecessary instances of perfmatters-lazy-youtube class from lazy loading inline styles. All lazy loading video features are now using a shared perfmatters-lazy-video class.
• Removed unnecessary development directories from plugin files.
• Translation updates.
• = 2.6.2 04.29.2026 =
• Added support to automatically optimize and lazy load Elementor Atomic YouTube elements and legacy video widgets when Perfmatters iframe lazy loading is turned on. YouTube preview thumbnails are also supported, as well as Elementor image overlays if set for the video.
• Added request-level caching to excluded and forced lazy loading attribute arrays to prevent unnecessary calls.
• Added multiple stripos and str_contains (PHP 8) checks in lazy loading image and iframe functions to prevent expensive regex scans if tags don’t exist on the page.
• Added new should_skip_request method in core LazyLoad class with request-level caching to prevent duplicate checks for WooCommerce pages and post-specific meta options.
• Added support to various General class functions to respect ?perfmattersoff.
• Added filters back to turn off WordPress’ lazy loading and auto sizing styles when Perfmatters lazy loading is turned on.
• Added built-in JS and CSS exclusions for Woocommerce’s dynamically added woocommerce-js body class.
• Refactored LazyLoad class into multiple subclasses for better maintainability.
• Removed duplicate list normalization step before replacement across LazyLoad classes to reduce loop overhead.