WP Plugins WP Rocket - Best Caching Plugin for WP 3.15

WP Rocket 3.9.0.4 changelog:

• Enhancement: Update links on settings page sidebar (Replace sidebar content #3913)
• Enhancement: Disable delay JS by default for new installations (Don't activate Delay JS for new users by default + delay everything once it will be activated #4085)
• Bugfix: delete used-css folder on uninstall (Used CSS folder shall be deleted when deleting the plugin #3966)
• Bugfix: Add swap property to fonts in used CSS (RUCSS does not add the font-display="swap" property when Optimize CSS Delivery is not active #3993)
• Bugfix: Prevent used CSS generation from processing styles inside noscript elements (RUCSS problem with tags #3957)
• Bugfix: Avoid used CSS generation from being stuck in some cases (Fix RUCSS ResourceFetcher fetch all page urls #3988)
• 3rd party compatibility: Exclude some JS of GTM4WP from delay JS (Add Delay JS exclusion related to Google Tag Manager for WordPress #4071)
• 3rd party compatibility: Avoid an error when using ShortPixel AI with Remove Unused CSS enabled (3.9 RUCSS - PHP Fatal error - too few arguments passed in rocket_css_content #3991)

v3.8.8 April 1, 2021

• Enhancement: Don't add font-face in Critical CSS & remove preload fonts when Optimize CSS Delivery is enabled. This change should result in an overall improvement of the Core Web Vitals score (#3667)
• Bugfix: Correctly purge expired cache on some environments (#3668)
• Bugfix: Only add the preconnect link to Google fonts domain when there is Google fonts on the page (#3219)
• Bugfix: Prevent PHP error in some cases during license validation (#3449)
• 3rd party compatibility: Add new inline JS exclusions from combine JS (#3665, #3671, #3683)
• 3rd party compatibility: Ignore pinterest ads query string when serving the cache(#3682)
• 3rd party compatibility: Exclude nonce actions for Discount rules and Dynamic pricing for WooCommerce (#3679)
• @iShare

v3.8.5 February 15, 2021

• Regression fix: Prevent an issue with NextGen Gallery created by a change in version 3.8.4 of WP Rocket (#3568)
• Enhancement: Exclude image element inside a picture element when the picture element is excluded from lazyload (#3437)
• Enhancement: Exclude the AMP mobile redirection script from combine JS (#3540)
• Enhancement: Add additional values to our list of query strings to ignore when serving the cache (#3503)
• Enhancement: Prevent trying to generate CPCSS for the web-story custom post type (#3513)
• Enhancement: Add new GTMetrix IPs to our list of IPs to check when serving the cache (#3126)
• Bugfix: Prevent defining WP_CACHE multiple times in wp-config.php in some cases (#3035)
• Bugfix: Prevent possible error caused by a missing parameter on a filter in get_rocket_cdn_cnames() (#3332)
• Bugfix: Correctly adapt the position of the Beacon to the current language when displaying it on the settings page (#3521)
• Bugfix: Exclude application/ld+json scripts from defer JS (#3470)
• 3rd party compatibility: Correctly exclude some Uncode JS files from defer JS on the most recent versions (#3036)