Enhancement: exclude additional patterns from JS minification (#4227, #4364)
Enhancement: exclude additional patterns from delay JS execution (#4358, #4506, #4604)
Enhancement: add a new filter rocket_exclude_post_taxonomy to exclude a post taxonomy from cache purge (#2820)
Bugfix: avoid adding commented-out stylesheet links into the <noscript> tag when using load CSS asynchronously (#4186)
Bugfix: prevent PHP notices in some cases when purging the cache for terms (#3464)
Bugfix: prevent unexpected closing of congratulations banner when closing the promo banner (#4064)
Regression fix: correctly exclude images using skip-lazy or data-skip-lazy from lazyload (#4576)

• Enhancement: Used CSS is not cleared after editing a taxonomy #4299
• Enhancement: Display a warning when the user adds "/" into the Never Cache URL(s) box #352
• Enhancement: Delay JS - Exclude Jetpack Boost's lazyload scripts #4473
• Enhancement: Add a secret key to the folder name of the common cache for logged in users #4482
• Bugfix: AddDefaultCharset directive added to .htaccess missing $charset value causing internal server error. Function missing logic to check returned value. #3704
• Bugfix: Lazyload images is removing the default LL of WordPress for iframe #4460
• Bugfix: PHP Notice: Undefined index: host when exclude Defer JS domain name while Minify JS is enabled #4466
• Bugfix: linear-gradient() function is removed in used CSS #4463
• Bugfix: Impossible to delay script which contains term "type" on his URL name. Condition not specific enough #4382
• Bugfix: RUCSS - elements are removed from the used CSS when that's inserted to a page #4474
• Regression Fix: Revert Delay JS script to 3.9.4.1 #4497
• 3rd Party compatibility: Add check for updated classname in PDFEmbedder compatibility #4491

WP Rocket v3.9.2 Changelog:

• 3rd-Party Compatibility: Auto-exclude jQuery from being deferred on Revolution Slider Activation (#4229)
• 3rd-Party Compatibility: Auto-exclude from Delay JS EWWW scripts for webp (#4165)
• 3rd-Party Compatibility: Auto-exclude Autoptimizer Lazyload script from Delay JS (#4162)
• Bugfix: Use correct server variable to detect Lightspeed (#3282)
• Bugfix: Sync varnish cache clear with WP Rocket cache clear on GoDaddy VIP (#3690)
• Bugfix: Delay JS preventing WPML from redirecting before user interaction (#4149)
• Bugfix: Pre-warmup fetch resources stopped in some cases (#4122)
• Enhancement: Grey out Delay JS option when WP Meteor is activated (#4074)
• Enhancement: Emulate Elementor Pro animation when using Delay JS (#4080)

WP Rocket v3.9.1 Changelog:

• Enhancement: Improve Google Fonts Optimization by preloading and asychronously loading the Google Fonts URL (#2772)
• Enhancement: Automatically exclude invalid script types from delay JS (#3944, #4158)
• Enhancement: Improve helper text for the delay JS exclusions field (#4044)
• Bugfix: Prevent high CPU usage on some hosts when using remove unused CSS (#4072)
• Bugfix: Update our minification library to fix several issues (#3698, #3398, #3279, #2974, #2083)
• 3rd party compatibility: Prevent display issue of the images gallery on a WooCommerce product page when delay JS is enabled (#4077)
• 3rd party compatibility: Add additional exclusions from combine/defer JS (#4009, #4012, #3984, #4048, #4068, #4128)

• Enhancement: Remove default exclusion list from Delay JavaScript Execution (#4111)
• Enhancement: Update Smush pattern to catch all Smush files (PR #4083)
• BugFix: Add Delay JS auto-exclusion for some plugins (PR #4082)
• BugFix: Add auto-exclusion for Fluent Form & ConverPro (PR #4079)
• Enhancement: Add Jetpack Stats Delay JS Auto-Exclusion (PR #4076)
• Enhancement: Update DelayJS script to the latest version (#4099)
• BugFix: Multiple CSS files aren't removed from page source while RUCSS and Woocommerce are enabled (#4119)

This version is now available for a random sample of 10% of our users. We will release this version to 100% of our users in the next few days. More Information.

• This version requires the WordPress version to be 5.3 or above
• New Beta feature: Remove Unused CSS. This feature removes all the unused CSS from the page, reducing page size and lower the number of HTTP request (#3635)
• Enhancement: new version of our delay JS feature. It is now applied on all javascript files by default, instead of using an inclusion list (#3738)
• Google & Facebook tracking one-click add-ons have been removed. We now recommend to use the delay JS option to optimize loading of those 3rd party scripts (#3597)
• Bugfix: Prevent caching of incomplete pages to avoid blank pages (#2776)
• Regression fix: Revert the removal of the preloaded fonts when CPCSS is enabled (#3785)
• 3rd party compatibility: Add compatibility with WooCommerce Multilingual currency switcher (#3418)

v3.6.0.3 June 16, 2020 (60% staggered release)

• Bugfix: Remove rules in the .htaccess to automatically serve pre-compressed CSS/JS files, as it was causing display issues on LiteSpeed server. The pre-compressed files are still generated and can be used if your server configuration is set to do so (#2779)

Changelog:

• New feature: Manually generate the critical path CSS for individual posts, pages & any custom post types, directly from the edit screen
• New feature: Generate critical path CSS for mobile version if the “separate cache for mobile devices” option is enabled
• New feature: Add a new option “preload for fonts” to add preload requests for your local fonts
• Enhancement: Create a pre-compressed gzip version of the CSS & JS minified files, which can be served directly to the browser instead of using dynamic compression
• Enhancement: Remove the critical path CSS from the page once it’s fully loaded to prevent display issues in certain cases
• Enhancement: Automatically regenerate the advanced-cache.php file when the plugin detects that the paths inside it are no longer correct
• Enhancement: Update the lazyload script to the latest version available
• Enhancement: Apply lazyload for background images on link & figure elements
• Enhancement: Rename “Optimize” button to “Save settings & Optimize” on the database optimization tab to better reflect the action
• Enhancement: Hide RocketCDN information & banners when the white label is enabled
• Bugfix: Correctly preload the cache after expiration when home URL doesn’t contain a trailing slash
• Option removal: Removed the “remove query strings” option as it doesn’t affect the loading time nor the page scores anymore

Changelog:
Bugfix: Prevent PHP Fatal error when trying to delete a term after updating to 3.5.5