Perfmatters - The #1 Web Performance Plugin for WordPress 2.5.7 NULLED

2.5.7 - 02.02.2026
* Fixed an issue where the auto size attribute value was being added to images with no specified dimensions which could cause the image to display incorrectly.
* Fixed an issue where the attribute parser would ignore attribute values containing new line characters.
* Fixed an issue with certain attribute characters being disallowed preventing the attribute from migrating to the final element tag.

2.5.6 - 01.28.2026
* Added new perfmatters_cdn_url filter along with new helper methods in the CDN class.
* Added the ability to completely disable Perfmatters code features using the new PERFMATTERS_DISABLE_CODE constant.
* Added confirmation message when turning on FastClick option.
* Added logic to remove the previous stored author ID when a code snippet is imported.
* Added host name to global settings and code snippet export files.
* Added additional logic to add an auto value to lazy loaded images sizes attributes when needed.
* Added separate used CSS generated files for different WooCommerce product types.
* Added dynamic request check in heartbeat function to prevent a possible PHP error.
* Updated lazy loading class to no longer add noscript tags by default for images and iframes to reduce HTML page size. The perfmatters_lazyload_noscript filter can still be used to turn that behavior back on.
* Updated get_atts_array utility method to use regex instead of wp_kses_hair for better compatibility.
* Reworked code snippet error handling class to work better with other exception handlers and existing error reporting.
* Turned off CSSLint in the code snippet editor, as it is outdated and was leading to false positives.
* Adjusted gutter column layout in the code snippet editor to be more consistent between different code types.
* Adjusted code snippet priority field to allow both negative and zero input values.
* Fixed an issue where CSS code snippets set to run in the footer were not having their conditions checked.
* Fixed an issue where CSS code snippets were not always printing where expected based on the set location and priority.
* Fixed an issue with certain code snippet input fields not being escaped properly in the UI leading to a broken layout in some cases.
* Fixed an issue where YouTube iframes rendered with a preview thumbnail that had autoplay forced off in their query string would require a double click.
* Fixed an issue where the referrerpolicy iframe attribute did not get applied to the generated iframe when using YouTube preview thumbnails.
* Translation updates.

== Changelog ==

= 2.5.5 - 12.11.2025 =
* Added new Code Settings options to Import and Export Perfmatters code snippets.
* Added support to export individual snippets, a subset of snippets through a bulk action, or all stored snippets from the new Code Settings export button.
* Added code snippets admin bar menu item that will show up if at least one snippet is present.
* Added frontend footer and admin footer locations for CSS code snippets.
* Added new PMMU_PLUGIN_DIR constant to allow for manipulation of the MU plugin file location for specific setups where the standard WPMU_PLUGIN_DIR may be altered.
* Added a REST API exception for Mollie.
* Added additional built-in CSS selector exclusions for Elementor's background slideshow.
* Added support for relative path URLs found inside stylesheets printed inline with our perfmatters_rucss_inline_stylesheets filter.
* Updated previous Separate Block Styles option which will now show up as a Block Style Behavior dropdown for sites running WordPress 6.9+.
* Fixed an issue in the code snippets editor where lint markers were not always correctly displaying for HTML and CSS snippets.
* Fixed an issue where the code snippet editor was pushing new lines off screen in some cases and not automatically scrolling to keep things in view.
* Fixed an issue where HTML code snippets were not able to save a non-default location.
* Fixed an issue with general Perfmatters admin notices not displaying correctly.
* Fixed multiple duplicate ID warnings in the plugin UI.
* Fixed multiple jQuery deprecation warnings in plugin UI JavaScript.
* Translation updates.

v2.5.4 - 11.20.2025

* Moved code snippet storage location out of cache directory and into the uploads folder to prevent data loss in certain environments.
* Fixed a code snippets compatibility issue with servers that don't support PHP OPcache..
* Fixed an issue where the CodeMirror editor was not always initializing correctly when editing an individual code snippet.
* Fixed an issue where the code type tag prefix was not updating when changing the code type while creating a new code snippet.
* Fixed an issue in the error handling class where the exception handler was looping in certain instances and throwing an error.

2.5.3 - 11.19.2025

* Added new Code Snippets (BETA) feature, which is now the default view in the Code tab. You can now create and manage PHP, JS, CSS, and HTML code snippets from inside Perfmatters. We store and load code snippets using a flat-file method and directly integrate with all of our existing optimization options for the best performance.
* Moved the existing header, body, and footer code boxes to Code > Global Scripts.
* Made style adjustments throughout the plugin UI.
* Added built-in CSS selector exclusion for GeneratePress mobile menu.
* Added new get_file_path utility method for use in various functions that need to determine the local file path for an asset loading on the front end.
* Fixed an issue where missing image dimensions were not getting applied correctly for sites inside a subdirectory.
* Removed BETA tag from Cloudflare Early Hints option.
* Updated EDD plugin updater class to version 1.9.4.

2.5.2 – 10.23.2025​

• Added new perfmatters_rucss_inline_stylesheets filter which allows you to inline any stylesheet already excluded from used CSS.
• Reworked the Script Manager input change event listener for better compatibility with other JavaScript running while the Script Manager is being used.
• Added new delay JS quick exclusion for GenerateBlocks Pro.
• Added built-in CSS selector exclusion for GenerateBlocks mobile menu.
• Added built-in stylesheet exclusion for GeneratePress local fonts.
• Updated WS Form Pro delay JS quick exclusion to fix a console error.
• Fixed some incorrect wording in the clear used CSS tooltip.

= 2.4.6 - 06.17.2025 =
* Added new advanced preload option to enable Cloudflare Early Hints (BETA) for Perfmatters preloads along with controls to limit which file types will have early hint link headers sent.
* Added new WP-CLI import-settings subcommand to import a settings configuration from an exported .json file.
* Added new WP-CLI disable and enable subcommands to modify certain plugin options. Available options can be printed out with the new get-options subcommand.
* Added new delay JS quick exclusion for SureCart.
* Added additional logic to disable speculative loading on WooCommerce cart and checkout URLs.
* Added additional logic to allow fallback deferral exclusions as part of an existing delay JS quick exclusion.
* Added built-in exclusion for Gravity Forms to prevent optimization features from running on AJAX form requests.
* Updated CSS parsing library to the latest version (8.8.0). Bug fixes and deprecations.
* Adjusted placement of perfmatters_preloads filter which was running too early and causing some filter snippets to be ignored.
* Increased default delay timeout from 10 to 15 seconds to improve compatibility.
* Fixed an issue with certain parent selector matching functions where a child element selector tag would also be replaced if it had the exact same selector tag HTML as the matched parent tag.
* Fixed multiple redundant calls to retrieve Script Manager settings row when loading the Script Manager UI.

= 2.4.5 - 05.16.2025 =
* Added some compatibility logic to fix an issue with specific caching plugins that were not working correctly with Perfmatters output buffer functions.
* Fixed a PHP translation warning that was coming from some post meta UI functions running too early.
* Translation updates.

= 2.4.4 - 05.08.2025 =
* Added new Exclude Leading option for CSS background images.
* Added new perfmatters_lazyload_parent_exclusions filter.
* Added new perfmatters_css_background_selectors filter.
* Added new speculative loading mode option to disable the feature entirely.
* Refactored lazy element method to be more efficient when searching for multiple element selectors.
* Reworked the perfmatters_critical_image_parent_exclusions and perfmatters_leading_image_parent_exclusions filters to no longer need to process the page HTML through DOMDocument for better stability, faster parsing, and 30% less code.
* Fixed an issue with parent selector matching for fetch priority and lazy loading where only the first image tag would match if it was inside a nested container element.
* Fixed an issue where the CSS Background class would get added to child elements as well if they also contained a matching selector.
* Fixed a compatibility issue when using Perfmatters preloads alongside WP Rocket.
* Fixed a spacing issue with input row checkboxes in the plugin UI.
* Translation updates.