Seraphinite Accelerator

Turns on site high speed to be attractive for people and search engines. See more how to use it. TO USE FREE ADDITIONAL FEATURES PLEASE INSTALL THE FREE EXTENDED PLUGIN VERSION BY FOLLOWING ONSCREEN PLUGIN'S INSTRUCTIONS. We kindly ask you to post reviews to share experience about your site speed - it helps improving the plugin. Features

• Fastest cache engine A high-performance file cache engine works as fast as possible on your site.
• High load tolerance Cache revalidation uses minimum resources.
• Security User cached sessions are protected from brute force attacks.
• Optimization plugins compatibility Many 3rd party optimization plugins can be used.
• Various range of encoding GZip, Deflate, Compress, Brotli, Uncompressed are supported.
• Cache data compression Decreases storage data occupation.
• Browser cache Leverage browser caching via .htaccess to reduce server load.
• Caching separation Data is different for various devices and environments.
• No site registration and quoting There is no any site registration and no time or page count quota.

Free additional features

• Multiple CDN Rearrange balance on multiple CDNs to be faster and decrease costs.
• Lazy revalidation Pages speed is always highest even while content updating.
• Cache storage space optimization The same parts are stored uniquely, which significantly saves space.
• Users cache Smart caching of user' dependent pages like shop cart, online courses, etc.
• HTML error-correcting and checking Managing unescaped scripts, misplaced and lost tags.
• Content size optimization Minification of Java-scripts, styles (CSS), HTML.
• Media load optimization Lazy loading of images, video, frames, fonts.
• Scripts load optimization Java-scripts and styles (CSS) lazy loading, inlining, and deferring.

Premium features

• No page views limits There is no limit of 5000 page views per month. In free version after reaching that limit the product will just cache pages without optimization.
• No banner There is no banner at the bottom of the site.
• No promotions No promotions of other related plugins.
• Support Personal prioritized support (5 hour per site). Additional support is for 30 EUR per hour. All issues due to product are always fixed for free.

More details. Requirements

• WordPress 4.5 or higher.
• PHP 7.1 or higher.
• Browser (Google Chrome, Firefox, IE).

Compatibility

• Google Tag Manager for WordPress 1.11 or higher.
• Facebook for WordPress 3.0 or higher.
• Site Kit by Google - Analytics, Search Console, AdSense, Speed 1.30 or higher.
• Realbig For WordPress 0.3 or higher.
• Yandex Metrica 1.8 or higher.
• JivoChat Live Chat 1.3 or higher.
• EWWW Image Optimizer 6.0 or higher.
• Smush - Lazy Load Images, Optimize & Compress Images 3.8 or higher.
• reSmush.it : the only free Image Optimizer & compress plugin 0.4 or higher.
• Image optimization & Lazy Load by Optimole 3.1 or higher.
• WooCommerce 3.5 or higher.
• WooCommerce Subscriptions 2.4 or higher.
• LMS by LifterLMS 4.0 or higher.
• WP-Recall - Registration, Profile, Commerce & More 16.26 or higher.
• WordPress Social Login 3.0 or higher.
• AMP for WP - Accelerated Mobile Pages 1.0 or higher, but pages' speed is not guaranteed due to this plugin already optimizes content.
• Jetpack - WP Security, Backup, Speed, & Growth 9.7 or higher.
• All in One SEO Pack 4.0 or higher.
• Yoast SEO 16.0 or higher.
• Rank Math SEO 1.0 or higher.
• WPML 4.0 or higher.
• PolyLang 1.8 or higher.
• Multiple Domain 1.0 or higher.
• Seraphinite Post .DOCX Source 2.0 or higher.
• Seraphinite Bulk Discounts for WooCommerce 2.0 or higher.
• Webinoly 1.14 or higher.
• ISPmanager 6.0 or higher.
• Smart Slider 3 3.4 or higher.
• Revolution Slider 6.5 or higher (partial support).
• Depicter Slider 1.9 or higher.
• Hide My WP Ghost 4.0 or higher.
• WP Hide & Security Enhancer 1.7 or higher.
• Feeds for YouTube 1.4 or higher.
• VillaTheme WooCommerce Multi Currency 2.1 or higher.
• Permalink Manager 2.2 or higher.
• Airtech Plumber HVAC and Repair theme 1.6 or higher.
• Porto theme 6.2 or higher.
• FlatSome theme 3.0 or higher.
• Slideshow of UIkit 3.14 or higher.
• Nginx Cache Controller 3.3 or higher.
• Nginx Cache 1.0 or higher.
• Nginx Helper 2.2 or higher.
• Cloudflare 4.9 or higher.
• Newspaper (tagDiv) theme 11.3 or higher.
• Image Comparison Widget of ElementsKit.
• Carousel of Happy Elementor Addons.
• Qi Addons For Elementor theme 1.6 or higher.
• Photonic Photo Gallery 2.80 or higher.
• WooCommerce - 1C Data Exchange 1.115 or higher.
• Scrollsequence - Cinematic Scroll Image Animation 1.3.0 or higher.
• GDPR Cookie Consent Plugin (CCPA Ready) 2.4 or higher.
• Tag Groups is the Advanced Way to Display Your Taxonomy Terms 2.0 or higher.

2.22.9 Improvements:

• Scripts lazy loading trigger.

Fixes:

• filemtime(): failed in 'content_img.php'.

2.22.8 Improvements:

• Lottie Widget of Nectar.
• Once animation of Page Builder Blocks of GreenShift.

Fixes:

• Base version: Uncaught Error: Class "seraph_accel\PluginRe.
• PHP warning: Passing null to parameter to strtolower() in 'common.php'.

2.22.7 Improvements:

• Optimization of 'mask-image' CSS rules.
• Use internal requests for asynchronous tasks execution: using root site directory.

Fixes:

• CSS parsing: colors like 'rgb' with long floating values parsed incorrectly.

2.22.6 Improvements:

• API::GetCacheStatus().

Fixes:

• Displaying 'Lazy Load Background Images' warning for Elementor.

2.22.5 Improvements:

• Auto-clearing of Pantheon Cache.
• Avoiding WP option update whenn processing optimization queue.
• Image lazy loading: Native (loading%3D"lazy" attribute).
• Normalization of random IDs of FlatSome theme.
• Postponing of User Agent while updating.
• Transcy currency switcher.
• WP Legal Pages.

2.22.4 Improvements:

• Defining SERAPH_ACCEL_SALT constant.
• Deleting old backed up settings.
• Postponing of User Agent while updating.
• Security while using 'echo'.
• SourceException renamed to SrcExcptn to avoid conflicts with other wrong written plugins.

Fixes:

• Truncating '%7C' symbols from 'class' attribute.

2.22.3 Improvements:

• Support Linguise translator.

Fixes:

• HTML parsing: inlined SVG in inlined styles parsed incorrectly.
• If lazy content block is empty it leaves placeholder.

2.22.2 Fixes:

• HTML parsing: inlined SVG in inlined styles parsed incorrectly.
• PHP warning: property $aComments.

2.22.1 Improvements:

• Avoiding cache rebuild after upgrading to full version.

2.22 Improvements:

• 'Copy All' and 'Delete All' operation in token editors.
• Animation via data from Divi.
• Avoiding cache rebuild after upgrading to full version.
• Option for disabling content optimization for user caching.
• Option for font names to optimize loading mode.
• Premium Lottie Widget of Elementor.
• URI arguments in groups.

Fixes:

• Async task CheckUpdatePostProcess is executed when queue is empty.
• HTML parsing: inlined SVG in inlined styles parsed incorrectly.
• Styles parsing: doesn't extract last import if it doesn't end with semicolon.
• YouTube video preview images are not loaded for playlist URLs.

2.21.15 Improvements:

• Revalidate cache if needed.
• Support for checking original path (mixed case and multi-slash) in exclusions.

Fixes:

• Asynchronous tasks execution: internal: Headers are included in response on some servers.
• Optimization returns 'noHdrOrBody' status on some sites.
• PHP notice: CacheUrlProcessor::$cbIsAbort is deprecated.

2.21.14 Improvements:

• Defining SERAPH_ACCEL_SITEROOT_DIR constant.
• Deinline large fonts.
• Revolution Slider 6.7 and higher.

Fixes:

• HTML parser: tags that contain digits 0,7,8,9 are truncated.
• Vulnerability of Cross Site Request Forgery (CSRF) in cancelling processing item.

2.21.13 Fixes:

• Activation can be dropped when multi-language plugins are used.
• Localization of the product is broken on some sites.

2.21.12 Improvements:

• Background video of Ultimate for WPBakery.
• Nivo Slider for jQuery.
• Support for Smart Slider.
• Use custom styles even if scripts are not delay loaded.

Fixes:

• Activation can be dropped when multi-language plugins are used.
• HTML parser fails if 'ctype_digit' PHP function is not available.
• Price Filter from WooCommerce.
• Use internal requests for asynchronous tasks execution: on some Windows systems it fails.

2.21.11 Improvements:

• Custom cache directory via SERAPH_ACCEL_CACHE_DIR.
• Possibility using scripts inside 'fresh' parts blocks.
• Self-diagnosis: Checking getting data from the vendor's server.
• Stopping removing 'loading%3D"lazy"' attribute from 'img' tags.
• Support for 'WP Hide & Security Enhancer' plugin.
• Support for Slider Revolution.
• Support for updating URLs with different case.

Fixes:

• AMP pages contain custom scripts that fails validation.
• Caching directives don't contain 'no-store'.
• Import in CSS can be separated incorrectly.
• PHP warnings while CSS processing.
• Paths to assets are wrong if site WP root path hooked on some sites.
• Settings are not shown on PHP 8.2.x and higher.
• URL with redirection to itself can stuck the queue.

2.21.10 Improvements:

• Player from Presto.
• Sucuri cache dropping.

2.21.9 Improvements:

• Animation of Betheme theme.
• Animation of TRX Addons for Elementor.
• Lazy HTML: Storing as attributes.
• Option for set 'Content-Length' HTTP response.
• Sticky elements of Elementor.
• Stretched elements for Elementor.
• Support for Slider Revolution.
• Tabs of Login/Signup Popup.
• Use internal requests for asynchronous tasks execution: adaptation to 'private_html'.

Fixes:

• GEO IP can be detected incorrectly on some sites.

2.21.8 Fixes:

• Localization is not loaded under WP 6.5 and higher.

2.21.7 Improvements:

• Early paint: influence was improved.
• Support for Gallery Widget of Elementor.

Fixes:

• Localization is not loaded under WP 6.5 and higher.
• Reading Elermentor's configuration.

2.21.6 Improvements:

• Downgrade disabled from full version to extended to prevent it in not fully working sites.
• Dropping of Endurance Page Cache.
• Support for animations of Elementor.

Fixes:

• Non ASCII symbols are not saved in settings.
• Undefined key 'HTTP_USER_AGENT' warning on some hostings.
• jQuery AJAX returns error on some sites.

2.21.5 Improvements:

• Sticky elements from Divi.
• Stretched elements for Elementor.
• Support for Slider Revolution.
• Woo Product Images Widget of Elementor.

Fixes:

• Generated assets can have wrong URLs under WPML for non default languages.
• Warning about failed renaming AI file.

2.21.4 New features:

• Adaptation to screen sizes of background images.

Improvements:

• Animation of Essentials theme.
• Slider Revolution: Smooth loading.
• Support for Slider Revolution.

2.21.3 New features:

• Adaptation to screen sizes of background images.

Fixes:

• Slow loading of scripts.

2.21.2 New features:

• Adaptation to screen sizes of background images.

Improvements:

• Common exclusions for images.
• Expressions for excluding arguments.
• Lottie Widget of Elementor.
• Server cache dropping of CloudPanel.
• Slider Revolution: Smooth loading.
• Waiting for styles loading ending.
• Woo Product Images Widget of Elementor.

Fixes:

• Smart Slider: background video playing.

2.21.1 Improvements:

• Animation of Ultimate.
• Content replacements.
• Filtering cache views by headers and URIs.
• Player from Presto.
• Player from jQuery.
• Processing nested CSS selectors.
• Scheduling for deleting server cache.

Fixes:

• Styles parsing: if semicolon is as prefix for selector the selector is skipped.

2.21 Improvements:

• Adaptation to screen sizes: avoiding already processed images.
• Carousel of Jet.
• Logging of server and cloud cache clearing.
• Manager: Limiting checking HTML only of current site.
• Menu from SuperFly.
• Premium Carousel of Elementor.
• Slider Revolution: Smooth loading.
• Support for CookieYes.
• Support for Image Carousel Widget of Elementor.
• Support for Slider Revolution.

Fixes:

• License cant be deactivated if any error occurs in the process.
• PHP 8 warnings related to PHPSQLParser.
• PHP warning about 'fopen' can be produced on some hostings.
• PHP warning about undefined key in $acceptEncodings.
• Slider Revolution: vertical position of elements may be calculated incorrectly.
• URLs that contain only dots in path segment can lead to inaccessible cache folder.

2.20.52 Improvements:

• Adaptation to screen sizes: avoiding already processed images.
• Mobile header of The7 theme.
• Support for Slider Revolution.

Fixes:

• Cache cleanup old may remove some data from the current cache update.

2.20.51 New features:

• Adaptation to screen sizes of background images.
• Adaptation to screen sizes of ordinary images.

Improvements:

• Support of conditions in regular expressions in URLs exclude list.

Fixes:

• HTML normalize: Two or more nested 'h1'-'h6' tags remove all that between them.
• Styles processing: incorrect handling of specified critical objects.

2.20.50 New features:

• Adaptation to screen sizes of background images.

Improvements:

• Responsive of Mediken theme.
• Sticky elements from Divi.
• Support for Slider Revolution.

Fixes:

• Click event propagates while loading non-critical scripts.
• Content parts optimization performs in compatibility mode.

2.20.49 Improvements:

• Sticky elements from Divi.

Fixes:

• Localization is unavailable when 'Performant Translations' plugin is used.

2.20.48 Improvements:

• Increasing security of log files.
• Optimization queue: Displaying 10 last errors.
• Sticky elements from Divi.
• Use internal requests for asynchronous tasks execution.

Fixes:

• Localization is unavailable when 'Performant Translations' plugin is used.

2.20.47 Improvements:

• Comparing content with previous version while forced revalidation.
• Priority of scheduled cache revalidation.
• Removing 3rd parties image's lazy loading.
• Separate delay for scripts loading on scrolling.
• Sticky elements from Divi.
• Sticky elements of Elementor.

Fixes:

• Deprecation PHP warnings in 'JSMin'.

2.20.46 New features:

• Adaptation to screen sizes of background images.
• Getting fresh content parts.

Improvements:

• Animation of Avada theme.
• Attributes cleanup.
• HTML fix: Moving end 'head' tags just before begin 'body' tag.
• Lottie Widget of Jet.
• Optimization queue: Displaying 10 last errors.
• Preloader from Divi.
• Preventing random ID generation from Jet Menu.
• Sticky elements of Elementor.
• Use internal requests for asynchronous tasks execution.
• Views of cache depending on geo-location.

2.20.45 Improvements:

• Caching external images: critical attribute.
• Lazy loading of Elementor's background videos.

Fixes:

• If there is commented 'script' tag in other 'script' it is split.
• Possible collisions while optimizing same image from different pages.
• Temporary images in styles can be cleared after cleanup if page used previous data from self-learning.

2.20.44 Improvements:

• Animation from Kadence theme.
• Early preloading of non-critical scripts.

Fixes:

• Clearing HTML node attributes can enter to infinite loop.
• Deinlining large images: Producing PHP deprecation warning.
• No deferred handling of 'mouseover' event.
• Removing ampersands from 'v-for', 'v-if', 'v-else-if' attributes of 'template' tag.

2.20.43 Improvements:

• Caching external images: critical attribute.
• Deferring critical special scripts.
• Lottie Widget of ElementsKit.
• Lottie generic.
• Sticky Header Effects for Elementor.
• Support for animations of Elementor.

2.20.42 Improvements:

• Sticky elements of Elementor.
• Use local requests for asynchronous tasks execution.

2.20.41 Improvements:

• Support of Funnel Biulder.

Fixes:

• Fresh parts are not loaded into lazy HTML parts.
• Lazy HTML: loading parts before full document loading can break content.

2.20.40 Improvements:

• Clearing WPAAS cache.
• Header from Divi.
• Sticky elements of Elementor.
• Support for Smart Slider.

Fixes:

• Cache non-lazy revalidation can produce truncated content on some servers.
• If script contains HTML comment that contains another script it leads to broken layout.

2.20.39 Improvements:

• Adding missing 'width' and 'height' attributes to non local images.
• Animation of SandBox theme.
• JS from WooCommerce.

2.20.38 Improvements:

• Premium Tabs of Elementor.

Fixes:

• WPML: incorrect saving of language domains.

2.20.37 New features:

• Adaptation to screen sizes of background images.

Improvements:

• Temporary cache not optimized content at initial revalidation.
• User cache only for fresh parts (beta).

Fixes:

• 3rd party lazy loading disabling: if 'data-src' atrribute is empty 'src' atrribute is deleted.
• Images with wrong MIME type 'image/jpg' are not processed.

2.20.36 Improvements:

• Sticky elements of Elementor.
• Support for Slider Revolution.

Fixes:

• HTML entities without ending semicolon are skipped.
• Removing ampersands from 'v-for', 'v-if', 'v-else-if' attributes of 'template' tag.
• Styles that contains HTML tags are inlined as is that leads to break main HTML.
• The7 theme: PHP error: Unsupported operand types: string %.

2.20.35 Improvements:

• Option for setting subdirectories in cache data directory.
• Support for 'If-Modified-Since' request header.

Fixes:

• WEBP/AVIFF images are not downloaded from external sources.

2.20.34 Improvements:

• Support for Slider Revolution.

2.20.33 Fixes:

• False notice about wrong state of 'advanced-cache.php' after update.

2.20.32 Improvements:

• CSRF checking while settings saving, resetting and importing.

Fixes:

• Site's path is not added if WMPL uses language separation by domains.

2.20.31 Fixes:

• Too early click can be skipped by main JS.

2.20.30 Improvements:

• Tabs of Royal Addons for Elementor.

Fixes:

• Self-learning: stops if element ID contains a dot.
• Too early click can be skipped by main JS.

2.20.29 Improvements:

• Header from Divi.
• N Carousel Widget of Elementor.

Fixes:

• Restoring and importing settings without privileges.

2.20.28 Improvements:

• Animation of TRX Addons for Elementor.
• Sales Countdown Timer from Sctr.
• Sticky elements of Elementor.
• Tabs of Royal Addons for Elementor.

Fixes:

• Too early click can be skipped by main JS.

2.20.27 Improvements:

• Animation of TRX Addons for Elementor.
• Support for Slider Revolution.
• Support of latest Ezoic plugin.

2.20.26 Improvements:

• Animation of Bricks.
• Video-box from Divi.

2.20.25 Improvements:

• Header from Divi.
• Sticky elements of Elementor.

Fixes:

• Alternative redirection doesn't work in background images adaptation.
• CDN is not applied for 'video' tags.

2.20.24 Improvements:

• Header from Divi.
• Premium Scroll of Elementor.
• Sticky elements of Elementor.

Fixes:

• Internal requests for asynchronous tasks execution: don't work if directory mapping of plugins directory is enabled.
• Lazy HTML: loading parts before full document loading can break content.

2.20.23 Improvements:

• Preventing random ID generation from 'Advanced Woo Search'.
• Responsive of Phlox theme.
• Sticky elements of Elementor.

2.20.22 New features:

• Adaptation to screen sizes of background images.

Improvements:

• Responsive of Nine theme.

Fixes:

• Lazy backgrounds: if URL contains '0' it is truncated under Safari browser.

2.20.21 New features:

• Adaptation to screen sizes of background images.

Improvements:

• Premium Navigation Menu of Elementor.
• Sticky elements of Elementor.

2.20.20 New features:

• Adaptation to screen sizes of background images.

Improvements:

• AVO Showcase Widget of Elementor.
• Adaptive redirection for simple external cache.
• Animation from Divi.
• Support for Smart Slider.

Fixes:

• If SVG is copied from an external source then cache descriptor marked as broken.

2.20.19 Improvements:

• Animation of FlatSome theme.
• Grid from Packery.

Fixes:

• Copied preview image from YouTube is missing after cleaning up.

2.20.18 Improvements:

• Displaying warning about wrong script/style type only in debug mode.

Fixes:

• Alternative images redirection: URL in styles are incorrect.
• Images lazy loading: placeholders for SVG are raster.

2.20.17 Improvements:

• Support for YouTube's 'live_stream'.

Fixes:

• Images lazy loading: high memory consumption if there are lot of images.
• Lazy loading backgrounds: messed up image if it is set as style and as inline.

2.20.16 Improvements:

• Forced overwriting temp files if the existed one is a directory.
• Support for animations of Elementor.

Fixes:

• HTML parsing: 'noscript' tag breaks 'head' tag under older LIBXML versions (e.g. 2.7.6).

2.20.15 New features:

• Adaptation to screen sizes of background images.

Improvements:

• Animated text of Royal Addons for Elementor.
• Placeholder minimization for lazy loading images.
• Preventing random ID generation from Akismet Anti-Spam.

Fixes:

• Converting to AVIF is without transparent channel via 'ImageMagick' PHP extension.
• HTML parsing: 'noscript' tag breaks 'head' tag under older LIBXML versions (e.g. 2.7.6).

2.20.14 New features:

• Adaptation to screen sizes of background images.

Improvements:

• Placeholder minimization for lazy loading images.

2.20.13 Improvements:

• Alternative redirection to WEBP and AVIF.
• Placeholder minimization for lazy loading images.
• Video-frame from Divi.

Fixes:

• HTML parsing: moves 'text' tag from 'p'.

2.20.12 New features:

• Adaptation to screen sizes of background images.

Fixes:

• Images lazy loading: initial placeholders are not marked as LCP.
• Styles parsing: hanging on 'oxygen' properties.

2.20.11 Improvements:

• Alternative redirection to WEBP and AVIF.
• Background image of Tilda.
• Background video of Vide for jQuery.
• Cache clearing of 10web.
• Converting WEBP to AVIF.
• Use internal requests for asynchronous tasks execution.

Fixes:

• HTML parsing: 'table' tag is removed from 'a' tag.
• High memory consumption on some PHP configurations while updating all cache.
• Images with empty 'srcset' are lazy loaded incorrectly.
• PHP error: feof(): supplied resource is not a valid stream resource.

2.20.10 Improvements:

• Alternative redirection to WEBP and AVIF.
• Animation of The7 theme.
• Animation of Ultimate for WPBakery.
• Background of Ultimate for WPBakery.
• Heading of Ultimate.
• Image of Minimog theme.
• Loading of lazy HTML parts only before scripts.
• Mobile header of The7 theme.
• Responsive of Ultimate.
• Styles correction for Elementor.

Fixes:

• PHP error: feof(): supplied resource is not a valid stream resource.

2.20.9 New features:

• Getting fresh content parts.

Improvements:

• Applying CDN for content parts requests.
• Deinline large images.
• Styles correction for Elementor.
• Styles correction for RTL layout.
• Support for Video widget of Elementor.
• Video JS widget.

Fixes:

• Cache is not updated when post is scheduled for publishing and external Cron is set.
• Own scripts are incompatible with old browsers.
• Self-learning: negation selectors can be placed in non-critical styles.

2.20.8 Improvements:

• Below the fold lazy content.
• Lazy styles loading from themes by PremiumPress.
• Separately loading of lazy HTML parts.
• Support for youtube-nocookie.com.

Fixes:

• Cache is not updated when post is scheduled for publishing and external Cron is set.

2.20.7 Improvements:

• Leaving lazy loading optimization in lazy HTML parts.
• Premium Navigation Menu of Elementor.
• Separately loading of lazy HTML parts.
• Use internal requests for asynchronous tasks execution.

2.20.6 Improvements:

• Asynchronous tasks running adaptation to the latest WP Cron version.
• Lazy styles loading from Divi.
• Lazy styles loading from themes by PremiumPress.
• Use internal requests for asynchronous tasks execution.

Fixes:

• Styles parsing: hashed invalid colors are not handled correctly.

2.20.5 Improvements:

• Improving speed of critical styles extraction.
• Loading elements of MyDecor theme.
• Support for Video widget of Elementor.
• Use internal requests for asynchronous tasks execution.

Fixes:

• Crash in admin mode with Parasponsive theme.
• Getting parts of content may not work if 'GTranslate' plugin is used.
• Styles parsing: long numbers are not handled correctly.
• Wizard buttons are messed up if Motors theme is used.

2.20.4 Improvements:

• Animation of Thrive theme.
• Reinitializing all configuration files while version upgrading.
• Responsive of Astra theme.
• Trying to always keep a content of 'advanced-cache.php' file in a right state.

2.20.3 Improvements:

• Animation of Avada theme.
• Page visits counter excludes bots.
• Support for animations of Elementor.

Fixes:

• Compatible views are only cached if user agent normalization is enabled.

2.20.2 Improvements:

• Removing 3rd parties image's lazy loading.
• Removing product version in server configuration files to avoid often changing.
• Support for split animation of Elementor.

2.20.1 Improvements:

• Alternative redirection to WEBP and AVIF.
• Optimization of preview images for Youtube and Vimeo.
• Preventing random ID generation from GTranslate.
• Self-diagnosis: Checking asynchronous tasks more precisely.
• Support for background image of Merimag theme.

2.20 New features:

• Getting fresh content parts.

Improvements:

• Alternative redirection to WEBP and AVIF.
• Reinitializing all configuration files while version upgrading.
• Support for 'If-Modified-Since' request header.

Fixes:

• Unavailable content in 'Safari' browser on some sites when go from an external link.

2.19.27 Improvements:

• Preventing random ID generation from GTranslate.
• Styles parser: Optimization.
• Support for Video-background from Divi.

Fixes:

• HTML parser: child direct extra closing tag leads to add closing parent tag.

2.19.26 Improvements:

• Backgrounds of FlatSome theme.
• License activation and upgrade to full version.
• Styles parser: Optimization.

2.19.25 Improvements:

• Lazy loading of Elementor's background videos.
• Styles parser: Optimization.
• Support for Slider Revolution.

2.19.24 Improvements:

• License block in base plugin version.
• Support for Grid of UIkit.
• Support for Navigation Bar of UIkit.
• Support for Yoo Theme Header.
• Support for animations of Elementor.

Fixes:

• Clearing the LiteSpeed Cache.
• Self-diagnosis: Showing internal subnet server address is on some hostings.

2.19.23 New features:

• Getting fresh content parts.

Improvements:

• 3rd party images' lazy loading overriding.
• Extended checking of 'advanced-cache.php' file.
• Logging of server and cloud cache clearing.
• Support for 'If-Modified-Since' request header.
• Support for Grid of UIkit.
• Support for Modal of UIkit.
• Support for Yoo Theme Header.

2.19.22 Improvements:

• Page visits counter excludes bots.
• Removing 'kindle' user agent from mobile view to be compatible with Razzi theme.
• Showing styles parsing errors in debug mode.
• Support for Equal Height Columns of Avada theme.
• Support for Image Carousel Widget of Elementor.
• Support for Tabs of Shortcodes Ultimate.

Fixes:

• The cache updating is not forced to stop.

2.19.21 Improvements:

• Support for animation of UIkit.
• Support for animations of Elementor.
• Support for appearing animation of Qi Addons for Elementor.

Fixes:

• Styles parsing: Skipping the next block if previous one contains property with not ended string.

2.19.20 Improvements:

• Cache fragmentation setting for Newspaper theme.
• Page visits counter excludes bots.
• Support for Yoo Theme Header.
• Support for animation of UIkit.
• Support for background image of UIkit.

2.19.19 Fixes:

• Self-diagnosis: The first task always shows 500 error.

2.19.18 Improvements:

• Cache fragmentation setting for Newspaper theme.
• Option for disabling auto-revalidation by timeout.
• Option for disabling compression for assets.
• Self-diagnosis: Checking for undefined NONCE_SALT constant.
• Support for Accordion of Elementor.
• Support for Product Filter by WBW.
• Support for WPStories.

Fixes:

• Script error 'Cannot read properties of undefined (reading 'forEach')' on some sites.

2.19.17 Improvements:

• Checking for incompatibility with other optimization plugins.
• Loading delayed scripts immediately if URL hash is given.
• Mobile header of The7 theme.
• Support for Depicter Slider.
• Support for Smart Slider.
• Support for animations of Elementor.

Fixes:

• Preloaded styles are processed as major.

2.19.16 Improvements:

• Increasing scheduled cache update TTL to be more compatible with external Cron execution.
• Support for animations of Elementor.

2.19.15 Improvements:

• Background of Ultimate for WPBakery.
• Self-diagnosis: Checking asynchronous tasks more precisely.
• Styles optimization: convert 'url()' to 'none' of background images.
• Support for GROVE theme.
• Support for Slider Revolution.

Fixes:

• Always put to critical selectors with :before and :after.
• Delayed click doesn't work in some layout.

2.19.14 Improvements:

• Delay for post cache updating.
• Support for Tabs of Shortcodes Ultimate.

Fixes:

• Styles class 'seraph-accel-js-lzl-ing-ani' is not taken when separating to critical styles.
• Using incorrect 'media' while combining styles with Woo's 'onload' attribute.

2.19.13 Improvements:

• Support for instant animations while scripts delaying.

Fixes:

• Changing simple anchors in URLs to absolute paths in styles.
• Elementor's background video re-playing after main scripts are loaded.

2.19.12 Improvements:

• API: OperateCache().
• Non-critical scripts' scope overriding in groups.
• Support for JNews Theme.
• Support for multi view loading from Divi.

2.19.11 Improvements:

• Forced overwriting temp files if the existed one is a directory.
• Support for Simple Menu of Essential Addons.

Fixes:

• Comparison of pages with the previous version does not use changes in settings.

2.19.10 Fixes:

• Possible 'A-HREF' in URLs in 'a' tags.

2.19.9 Improvements:

• Removing wrong placed 'body' tags from 'head' tag.
• Support for Price Filter from Woodmart.
• Support for Slider Revolution.
• Support for Tag Groups from TaxoPress.
• Support for multi view loading from Divi.

2.19.8 Improvements:

• Alternative domains definition in 'wp-config.php'.
• Images source set from MK.
• Warning about wrong content of 'seraph-accel-img-compr-redir.conf'.

Fixes:

• Self-diagnosis: Checking asynchronous tasks execution under servers that remove some response's headers.

2.19.7 Improvements:

• All update dependencies: Independence of pages' list from sitemap.
• Default processing settings for low performance hostings.
• Protection from downloading styles and scripts of wrong MIME type.
• Removing 3rd parties image's lazy loading.
• Self-diagnosis: Checking memory limit.
• Support for Jet Mobile Menu.

2.19.6 Improvements:

• Support for Slider Revolution.

Fixes:

• Deferred asynchronous scripts are loaded earlier.

2.19.5 Improvements:

• Fixing markup of HTML: Correcting closing tag of 'hX'.
• Loading 'iframe' interpreted as JS asynchronously.
• Support for Slider Revolution.

2.19.4 Improvements:

• Lazy loading of Elementor's background videos.
• Support for Slider Revolution.

2.19.3 Improvements:

• Support for Slider Revolution.
• Support for container query units in styles.

Fixes:

• Possible division by zero while processing Elementor Widget Gallery.

2.19.2 Improvements:

• Page visits counter excludes bots.

Fixes:

• Deferred asynchronous scripts are loaded earlier.

2.19.1 Improvements:

• Support CSS original string encoding if conversion to UTF-8 doesn't work.
• Support for Slider Revolution.

2.19 Improvements:

• Notice about settings conflicting on 'Superio' theme.
• Options for cleaning unneeded elements.
• Reducing the load on the server with the manager open in admin area.
• Settings: Adding multiple expressions separated by new line.
• Support for Slider Revolution.

Fixes:

• Admin Interface: Elements' widths are broken if other plugins use the CSS class name "block".
• CSS parsing: RGB with alpha after slash processed incorrectly.
• False notice about wrong state of 'advanced-cache.php' after update.
• Mobile cache is not dropped for particular URL in CloudFlare.

2.18.23 Improvements:

• Decreasing CPU using while asynchronous tasks execution.
• Default exclusion for printfriendly.com service.
• Reducing CPU usage when processing posts updating.

Fixes:

• Background video of Elementor: Preview for Vimeo video is not displayed if defined by //vimeo.com/XXXXXXXX.

2.18.22 Improvements:

• Adaptation to screen sizes is turned off by default.
• Checking for compatibility with 'Lazy Load Background Images' from Elementor.
• Styles' grouping is turned on by default.
• Support for 'Feeds for YouTube' plugin.
• Support for Pixelmate Cookie Banner.
• Support for Slider Revolution.
• Support for Smart Slider.

2.18.21 Improvements:

• CPU cool-down intervals during optimization.
• Decreasing CPU using while asynchronous tasks execution.
• Reducing CPU usage when processing the optimization queue.

Fixes:

• If 'document.createElement' is overridden by 3rd party scripts then JS delayed loading can be broken.
• Self-diagnosis: Checking asynchronous tasks execution under servers that remove some response's headers.

2.18.20 Improvements:

• Displaying user column in optimization queue if user caching is active.
• Process URLs for 'preload' images and fonts.
• Updating cache synchronously while adding comments in user caching.

Fixes:

• Assets' fragmentation is skipped on some servers.
• Cache revalidation can be skipped while users caching.
• Clearing external cache: SiteGround.

2.18.19 Improvements:

• Support for 'GDPR Cookie Consent' plugin.

Fixes:

• Deferred asynchronous scripts are loaded earlier.
• XMP tag content can break layout.

2.18.18 Improvements:

• Normalize user-agent.
• Scripts grouping: exclusions for modules.
• Self-diagnosis: Checking needed tables in database.

Fixes:

• Possible warning while theme customization about 'cannot modify header information'.

2.18.17 Improvements:

• Direct link to a new plugin version in plugins list.
• Exclusions for script grouping.
• Support for multi-domains for PolyLang.
• Views of cache depending on geo-location.

Fixes:

• CSS parsing: breaking if selector contains symbol '@' not in beginning.

2.18.16 Improvements:

• Support for Slider Revolution.

Fixes:

• CloudWays's cache clearing.

2.18.15 Improvements:

• Support for Smart Slider.

Fixes:

• 'Upgrade to base plugin version is not supported' error on some hostings.
• CSS parsing: RGB with alpha after slash processed incorrectly.
• CSS parsing: escaped quotes processed incorrectly.
• CSS separation: Pseudo classes ':hover', ':invalid', ':visited' are interpreted as not critical.

2.18.14 Fixes:

• If there is a 'base' tag, fragmented CSS and JS are not loaded.

2.18.13 Improvements:

• Removing warning about bad assets compression under LiteSpeed server.
• Support for Slider Revolution.

Fixes:

• Decrypting is not working after changing salts.
• Self-learning: page skeleton has duplicate classes.

2.18.12 Improvements:

• Support bubble morphing for Slider Revolution.

2.18.11 Improvements:

• Support for Avada theme.
• Support for Slider Revolution.

Fixes:

• Adaptation to screen sizes: Animated images become non animated.
• If the last slash in tag is related to attribute value it is skipped.

2.18.10 Improvements:

• 3rd party images' lazy loading overriding.
• Checking for properly loaded 'advanced-cache.php' file.
• Early preloading for fonts.
• Limiting .HTACCESS backup to 5 items.
• Limiting log files to 2 MB size and maximum 50 count.
• Self-giagnosis: warning about missing 'CURL' PHP extension.
• Support for Scrollsequence plugin.
• Support for Slider Revolution.
• Updating cache synchronously while adding comments in user caching.

Fixes:

• Error 'Ended unexpectedly' in queue for some skipped URLs.
• If the last slash in tag is related to attribute value it is skipped.
• Same parts separation settings can't be added.

2.18.9 Improvements:

• Support for Slider Revolution.

2.18.8 Improvements:

• Decreasing CPU using while asynchronous tasks execution.
• Optimizing content for user cache without JS delay.
• Support user caching for WP-Recall plugin.

Fixes:

• Long page loading time without lazy auto-revalidation.

2.18.7 Fixes:

• Delayed click settings are upgraded incorrectly.

2.18.6 Improvements:

• 3rd party images' lazy loading overriding.
• Updating post's cache according to its WPML language.

Fixes:

• Image adaptation: Composite background is not fully copied.
• Next clicks are not blocked while main JS is loading.

2.18.5 Improvements:

• Styles correction for Divi.
• Video-box from Divi.

Fixes:

• Relative URLs in revalidation list of post are updated incorrectly.
• Warning in PHP error log about attempting to read property "nodeValue" if Elementor Widget Gallery enabled.

2.18.4 Improvements:

• Logging: HTTP trace.

Fixes:

• Relative URLs in revalidation list of post are updated incorrectly.

2.18.3 Improvements:

• Logging: Cache updating.

Fixes:

• Operations in admin area may freeze on some LiteSpeed server configurations.
• Page's numbers are enumerated without ending slash.

2.18.2 Fixes:

• Slideshow with backgrounds of Elementor.
• Styles parsing: Conversion from UTF-32LE to UTF-8 is not supported on some PHP configurations.

2.18.1 Fixes:

• On some hosting there is performance degradation while styles optimizing.

2.18 Improvements:

• Delayed click settings.
• Lazy loading of Elementor's background videos.
• Support for Gallery Widget of Elementor.

Fixes:

• JS error if 'touchend' listener uses 'changedTouches' field.

2.17.23 Fixes:

• Localization is unavailable when 'Translate Press' plugin is used.

2.17.22 Improvements:

• Support for Jet Mobile Menu.

Fixes:

• Adjusting 'nonce' period can be late.

2.17.21 Improvements:

• HTML correction: Moving nodes that out of 'body' and 'html' tags.

Fixes:

• CSS selector parsing error in pseudo element.
• Elementor video widget: Vimeo: Black content after a main JS loaded.
• If lazy video 'iframe' is duplicated then the only first one is played.

2.17.20 Improvements:

• HTML correction: Moving nodes that out of 'body' and 'html' tags.

Fixes:

• Operate: Current operation can display 'null'.
• Revalidation: URLs with space ending are updated incorrectly.

2.17.19 Improvements:

• Support for Slider Revolution.

Fixes:

• Browser's cache timeout isn't saved.
• CSS selectors with '%2B' and '~' are not critical while self-learning.
• If optimization is disabled then the queue items are always in stopping state.

2.17.18 Improvements:

• Updating comment pagination for URL.
• User-agents in cache views can be compared now by regular expressions.

2.17.17 Improvements:

• More details in 'dscFileUpdateError' error.
• Support for 'title' attribute of videos of Elementor.
• Vimeo preview picture as JPG instead of PNG.

2.17.16 Improvements:

• Free version banner's 'alt' attribute.
• Support for Slider Revolution.

2.17.15 Improvements:

• Support for Slider Revolution.
• Support for Smart Slider.

Fixes:

• Cache view is not separated if cookie value is 0.

2.17.14 Improvements:

• Support for Slider Revolution.

Fixes:

• Start time is not processed in Videos of Elementor.

2.17.13 Improvements:

• Option for adjusting 'nonce' period.
• Warnings about conflict options from 'Clearfy Cache' plugin.

2.17.12 Improvements:

• Always generating configuration file for NGINX.
• Support for Nginx Cache Controller and Nginx Cache plugins.
• Warnings about conflict options from 'Clearfy Cache' plugin.

Fixes:

• Images are not fully processed in case of correction from 3rd party lazy loading.
• Last slash in root site path is missed while revalidation.

2.17.11 Improvements:

• Support for Advanced Tabs of Elementor.

Fixes:

• Marking redirections via 'notHtml'.

2.17.10 Improvements:

• 'Calendly' scripts added to 'specials'.
• Another Yandex Maps scripts added to 'specials'.
• Determining SVG size by 'viewBox' attribute.
• Diagnostic information about early abort of content processing.
• Showing request headers in failed optimization request.
• Support for multi view loading from Divi.
• Support for nonstandard comments.
• When post's slug is changed deleting the cache to the previous one.

Fixes:

• Optimization fails with active Cloud-Protector.
• Self-diagnosis: Cron test.

2.17.9 Improvements:

• Auto-renaming (while activation or upgrading from Base version) plugin's directory to appended by '-ext' to avoid external wrong overwriting by Base version.
• Scripts default exclusions for ShortPixel Plugin (AI).

Fixes:

• Asynchronous tasks don't work with blocked 'wp-cron.php'.
• Skipping caching of disabled optimization in content groups.

2.17.8 Fixes:

• Images compression fails if system's temporary directory is not writable.
• When images have appearing effects then their lazy loading sometimes cant be completed.
• Wrong style's selector can lead to memory overflow.

2.17.7 Improvements:

• Creating common session cookie only if user caching is enabled.
• Normalization of random IDs of FlatSome theme.

2.17.6 Improvements:

• Displaying original of self-learning in optimization queue.
• More details in external caching notice in self-diagnosis.

Fixes:

• After updating free extended version cache can be dropped.
• CSS attribute 'hsl' with 'space' delimiter and expressions parsed incorrectly.

2.17.5 Improvements:

• Creating common session cookie only if other particular sessions are created.
• Setting to allow external caching.
• WEBP support without PHP.

Fixes:

• Asynchronous tasks don't work with blocked 'wp-cron.php'.

2.17.4 Improvements:

• Displaying of current operation in Manager.
• Masking IE specific tags.
• Processing queue loading indicator.
• Support for Navigation Menu of Elementor.

Fixes:

• Asynchronous tasks don't work with blocked 'wp-cron.php'.
• Redirection URL can't be processed if it doesn't contain site or protocol.
• Self-diagnosis: Cron test.

2.17.3 Improvements:

• 3rd party images' lazy loading overriding.
• Extended error reporting while compressing via 'avifenc' module.
• OWL Carousel styles for delay loading.
• Support for Navigation Menu of Elementor.

Fixes:

• Description is unlocalized of completed items in optimization queue.
• If PHP 'chmod' function is unavailable checking for compression can return 500 error.
• Jet Mobile Menu icon blinking.
• NGINX shows warning when checks configuration with included 'seraph-accel-img-compr-redir.conf'.
• PHP error of undefined function 'escapeshellarg'.
• Sometimes Ext, Full versions are updated to Base version.
• While generating 'avif' the size is not compared with 'webp' if the last one was already created.

2.17.2 Improvements:

• 'Delete' button renamed to 'Clear' in optimization queue.
• AVIF support without PHP.
• Not creating 'avif' if 'webp' is smaller.
• Quality settings for 'avif' if 'webp'.
• Showing progress of current compressing image in optimization queue.
• Showing warnings in the queue if some image processing failed.
• Styles corrections of lazy loading for Jet Testimonials.

Fixes:

• Content type of 'image/avif' and 'image/webp' are not setting when they are not defined in mime types in NGINX configuration.
• If server sets domain that different from site's domain all site's URLs are interpreted as external.

2.17.1 Improvements:

• Support for Jet Mobile Menu.

Fixes:

• Optimization result can show 'Skipped: 5xx' instead of successful completion.
• Self-learning doesn't use content parts lazy load corrections.

2.17 Improvements:

• Checking dependent parts of the cache.
• Fast optimization of styles during self-learning.
• HTML fixing: adding skipped HTML tag.
• Option for maximum execution time and pause after skipped optimization.
• Page exclusions by XPath expressions for content.
• Showing error in the manager while operations if server state is wrong.
• Stopping and controlling the execution of optimization tasks.
• Without lazy revalidation while optimization content is displayed fresh for all requests instead of the first one.

Fixes:

• Sometimes there is an error renaming the temporary CSS file.

2.16.3 Improvements:

• Optimizing the execution of asynchronous tasks.
• Support for Video widget of Elementor.
• Updating cache of pagination.

Fixes:

• Cache's auto-updating does not process parent terms.

2.16.2 Improvements:

• Facebook's scripts from '.net' domain added to special ones.
• MailChimp scripts added to special ones.
• Scripts and styles filters can be combined by '&' operator.
• Settings restoring confirmation.

Fixes:

• After settings' restoration 'advanced-cache.php' is not updated.
• Can't update plugin from file if its directory is renamed.
• Under PHP 8.1 scripts' encoding can be wrong.

2.16.1 Improvements:

• Localization for scheduler's next time run description.
• Support for 'WooCommerce - 1C Data Exchange'.
• Support for Smart Slider.
• When external images can't be cached then dropping the cache to prevent showing expired image sources.

Fixes:

• Cache is not updated immediately for logged in users.
• Content cant be parsed with broken meta tag 'http-equiv' with content like "text/html; charset%3D"UTF-8".
• Sometimes PHP warning 'Cannot modify header information' appears while revalidating cache.

2.16 New features:

• Scheduled cache update.

Fixes:

• Sometimes PHP warning 'Cannot modify header information' appears in admin mode.

2.15.16 Fixes:

• Optimization can stuck on some servers with 504 timeout error.

2.15.15 Fixes:

• Assets CSS and JS are loaded as GZ under LiteSpeed server.
• Closing tags with space after slash are skipped.
• When using Redis, the operation may freeze.
• Wrong parsing a tag that contains attribute with value begins with '>'.

2.15.14 Improvements:

• If image is unavailable by local path it is downloaded by URL.

Fixes:

• Adaptation to screen sizes: styles marked with 'important' are not overridden.
• Error using 'mb_convert_encoding' if PHP 'MBSTRING' extension is not activated.
• Sometimes error appears about call to undefined function 'get_plugins'.

2.15.13 Improvements:

• Adding items to lazy exclusions also excludes removing 3rd party lazy loading.
• Support for Photonic Photo Gallery.
• Support for Smart Slider.

Fixes:

• Closing tags with space after slash are skipped.
• Self-learning is not stopped if the cache is re-updated during it.
• Self-learning starts after a general interval.

2.15.12 Improvements:

• Optimization error details.
• Support for Smart Slider.
• Updating cache when taxonomy attributes are changed.

2.15.11 Improvements:

• Support size detection of SVG.

2.15.10 Improvements:

• Support for 'WP Hide & Security Enhancer' plugin.
• Support for Avia Slideshow.
• Support for Tabs of Elementor.

Fixes:

• Optimization sometimes ends with 500 error due to missing 'documentElement'.
• Scripts that are loaded by PHP are processed incorrectly.

2.15.9 Improvements:

• Support for Photonic Photo Gallery.

Fixes:

• Assets that are related to current URI have wrong absolute paths.

2.15.8 Improvements:

• Repeating optimization when hosting blocks it.

Fixes:

• Assets that are related to current URI have wrong absolute paths.
• Broken cache fragments with zero size interpreted as good.
• If self-learning is redirected it is stuck.
• XPath settings don't preserve <> characters.

2.15.7 Improvements:

• Support for Carousel of Happy Elementor Addons.
• Support for Image Comparison Widget of ElementsKit.

2.15.6 Improvements:

• Warnings about missed 'ICONV' and 'MBSTRING' PHP extensions.

Fixes:

• HTML parsing: Comment ending --!> is skipped.

2.15.5 Improvements:

• Adaptation to screen sizes: processing max width 767px as 768px.
• Disabling warning about SiteGround's cache is enabled if server's cache clearing is enabled.
• Operate: Deleting server's cache.
• Self-learning: detecting optimization settings changing.
• Smooth posts' cache updating while WP All Import works.
• Support for Block Ultimate Post Slider.

2.15.4 Improvements:

• Asynchronous revalidation after post's update.
• Support for tagDiv.
• Support of Switcher of Airtech Plumber theme.
• Warning about not-writtable 'advanced-cache.php' file.
• Warning about pages limit visits reaching in free extended version.

Fixes:

• Cache can't be read if maximum opening files limit is lower that parts count.
• Content encoding is broken on IdeaWebServer.
• Group settings are not applied.

2.15.3 Improvements:

• Clearing external cache.
• Image compression: recreating files with zero size.
• Repeating optimization when hosting blocks it.
• Support for Smart Slider.

Fixes:

• If styles separation is disabled then while cleaning old cache warning appears in PHP log.

2.15.2 Improvements:

• 3rd party images' lazy loading overriding.
• Clearing external cache.

Fixes:

• If scripts grouping and fragmentation are both enabled then such scripts are unavailable after cleanup.
• If sitemap's item download breaks by timeout all next items are skipped.
• Styles parsing with escaped quoting.

2.15.1 Improvements:

• Cookies filters can be combined by '&' operator.
• Page visits counter excludes bots.
• Self-learning: common exclusions for pages' structure comparing.
• Support for Smart Slider.

2.15 New features:

• Self-learning.

Improvements:

• Cutting wrong PHP code tags.
• Manual updating cache by expression.
• Revalidation expression: postsWithTerms.
• Support for Slider of Airtech Plumber theme.
• Support for slideshow of UIkit.

Fixes:

• HTML parsing: converts € to €.

2.14 Improvements:

• Backgrounds of FlatSome theme.
• JetCompareWishlist support.
• Lazy loading: Vimeo: Preview picture from another source.
• Option for Image lazy loading smooth appearing.
• Overriding settings for page groups.
• Support for Porto theme.

Fixes:

• If script is unavailable and grouping is enabled then optimization fails.
• Scripts' delaying and grouping under iOS.
• Slideshow with backgrounds of Elementor.

2.13 Improvements:

• Checking of invalid compression of assets.
• Lazy loading: Vimeo: Preview picture from another source.
• Plugin's custom directory name support.

Fixes:

• Delaying scripts not properly process deferred ones.
• HTML parsing removes tag attributes that begins with '@'.

2.12.1 Improvements:

• Showing settings only for admin roles.

Fixes:

• Database table can't be created on some sites due to index column size too large.
• Delaying scripts not properly process deferred ones.

2.12 Improvements:

• 'Permalink Manager' support.
• Additional domains for one site.
• Default style corrections for Elementor.
• Option for styles' structure correction.
• Support for Slider of Airtech Plumber theme.
• Support for slideshow with backgrounds of Elementor.

Fixes:

• If cache's fragment writing was aborted it becomes corrupted.
• Page loading delay when revalidating by expired TTL on some sites.
• Styles' import processing doesn't extract import that after commented '%7B' symbol.
• Updating cache by URL that contains mask can be skipped if some security filter is active.

2.11.2 Improvements:

• Additional domains for one site.

Fixes:

• Scripts delayed loading: if content with rest scripts is overwritten then scripts can't continue loading.
• Styles parsing: rgb(var(--rgb)/4%) transforms to rgb(var(--rgb),4%).
• Under WPML the error about 'advanced-cahce.php' is shown sometimes.

2.11.1 Improvements:

• Removing 3rd parties image's lazy loading.
• Self-diagnosis: Images' compression checking.

Fixes:

• If style contains '>' then it is parsed incorrectly.
• Plugin processes incorrect site's URL if site directory is not the same as WP root directory.
• Plugin's scripts and styles are loaded incorrectly if WP plugins directory is not under WP root directory.

2.11 New features:

• Images compression support: WEBP, AVIF.

Fixes:

• CDN address field is short on some sites.
• If some script is failed to loading then it becomes empty while grouping.
• Image's URL that contains non ASCII symbol is processed incorrectly.
• PHP8 notices about undefined array keys.
• Styles selectors contain '/' symbol are always marked as non-critical.
• Symbol '>' in custom style is saved incorrectly.

2.10.3 Improvements:

• Option that improves a little bit scripts loading speed.
• Queue processing optimization.

Fixes:

• If alternative Cron is enabled, then there are processing errors in the queue with the 'doing_wp_cron' parameter.
• Redirections without host name have errors while processing in the queue.

2.10.2 Improvements:

• Optimized storage for combined scripts and styles.

Fixes:

• If grouping of non-critical scripts is enabled and their lazy loading is disabled, a runtime error appears.

2.10.1 Improvements:

• Adaptation to screen sizes: Backgrounds: 'webp' support.
• Adaptation to screen sizes: Backgrounds: Result width limit.
• Restoring missing 'body' tag.
• Ultimate Carousel support.

Fixes:

• If CSS contains url(#anchor) it can be converted to url(//#anchor).
• If some image has zero size then PHP error with imagecreatetruecolor.
• When user caching is enabled then under PHP 8 warning is shown: Undefined variable $parseRes.

2.10 New features:

• Adaptation to screen sizes of background images.

Improvements:

• Auto-cleanup timeout has been increased from 30 to 182 days due to probable issue with Google Search Console.
• User session cookie's security ('SameSite' and '__Secure-' prefix).
• VillaTheme WooCommerce Multi Currency support.

Fixes:

• Optimization requests can contain dots or commas in the timestamp parameter.

2.9.14 Fixes:

• If .htaccess's 'mod_headers.c' is disabled then scripts and styles compression is wrong.
• If auto-revalidation timeout is zero then page is only cached.

2.9.13 Fixes:

• If optimization request is marked as timeout by CloudFlare the optimization stops.
• Scripts with type 'module' are not supported.

2.9.12 Improvements:

• Meta fields exclusions for post cache updating.

Fixes:

• If server blocks optimization request the optimization time is 10 minutes.
• Operate: URL not optimized if it contains uppercase characters.
• While activating the plugin with not active cache system it can show related notice one time.

2.9.11 Improvements:

• Support for 'Feeds for YouTube' plugin.

Fixes:

• CSS corrections for 'OWL Carousel' break layout on some sites.
• Dismiss button in admin notifications doesn't work on the non-plugin pages.
• Warning showing about 'Default lazy loading in modules' setting for 'Slider Revolution' versions lower than 6.5.
• YouTube video preview images are not loaded for playlist URLs.
• YouTube videos start play only after second press under mobile.

2.9.10 Improvements:

• Offering banner to switch to extended version in base plugin version now only one per page.

Fixes:

• Cache's auto-revalidating doesn't work while GET requests that modify custom properties.
• Dismissible notifications disappear only after page reload.
• If styles combining is enabled and optimization not then relative paths point to wrong place.
• Styles editor doesn't allow save '%' characters.

2.9.9 Improvements:

• Disabling 'emoji' only if optimization is enabled.
• OWL Carousel styles for delay loading.
• On all notifications that requires confirming the close 'X' button was removed.

Fixes:

• LiteSpeed's .htaccess detection.
• Styles parsing: breaks following selectors if @import is not ending with semicolon.

2.9.8 Fixes:

• LiteSpeed's .htaccess detection.
• Updating post dependencies prepends post's URL to simple URI.

2.9.7 Fixes:

• PHP error: Call to undefined function Op_DepItems_MigrateFromOld.

2.9.6 Improvements:

• LiteSpeed's .htaccess detection.
• The new expressions format for URLs.

2.9.5 Improvements:

• Configuration Wizard: pages optimization mode.
• Don't connect again to hosts that are unavailable by timeout.
• Lazy loading of Elementor's background videos.
• Setting the memory used.
• Warning about 'Smush Pro' plugin settings.
• Warnings about conflicting plugins options have been extended by particular values.

2.9.4 Improvements:

• Changing text 'Already done' to 'Dismiss' in review notification.
• Warning about 'Slider Revolution' plugin JS options has been removed.

Fixes:

• HTML parser process '<' before real tag incorrectly.

2.9.3 Improvements:

• Display 'Common' instead of 'Desktop' if no views enabled.
• General state checking is included in self-diagnosis.
• Upgrading CDN protocol to HTTPS on secured page.
• Warning about 'A2 Optimized WP' plugin.
• Warning about 'Asset CleanUp: Page Speed Booster' plugin.
• Warning about 'Async JavaScript' plugin.
• Warning about 'ShortPixel Adaptive Images' plugin.
• Warning about 'Slider Revolution' plugin options.
• Warning about 'WebP Express' plugin options.
• Warning about lazy loading in 'TheGem' theme.
• Warning about lazy loading in 'XStore' theme.
• Warning in self-diagnosis about CloudFlare's 'Rocket Load' and 'Bot Fight Mode'.

Fixes:

• Cache auto-updating occurs after closing post editor.
• Instagram images stop showing after a while.

2.9.2 Improvements:

• Early preloading delayed scripts.

Fixes:

• Scripts delaying without deep hooking is not compatible with some scripts.
• Scripts grouping doesn't work if it's optimization is disabled.
• Styles are still optimized if only unneeded items defined.

2.9.1 Improvements:

• Notification about disabled 'SiteGround' plugin.
• Parameter 'yclid' has been added to default skip arguments list.
• Updating post's cache when comments are changed.

Fixes:

• Brotli version 0.10.0 or higher is required.
• Decrypting is not working after changing salts.
• HTML processor removes new line symbols from attributes.
• Manual refresh does not happen if a large number of URLs are given.
• Styles parsing: symbol '@' isn't allowed in selectors.
• Styles parsing: various symbols aren't allowed in variable values.

2.9 New features:

• Option to add custom URLs while all updating.
• Revalidation setting at separated block.
• Updating cache of URL with parameters.

Improvements:

• Excluded URLs are not put into the optimization queue.

Fixes:

• 'Hide My WP' is not applied whet temporary cache is used.
• Cache is not updating while 'WP All Import' processing by scheduler.
• Images inlining processes zero length files.
• The same view name if updating with several defined views.

2.8.1 Improvements:

• Notice about incompatibility with WP Super Cache.
• Support for 'Hide My WP' plugin.

Fixes:

• Post auto-update doesn't work in admin AJAX when only one meta field is changed.
• Tapping on mobiles doesn't work on some sites before scripts are loaded.

2.8 Behavior changes:

• 'Temporary cache not optimized content after forced revalidation' now is enabled by default.
• Deleting cache instead of revalidating after upgrading to full version.
• Scripts 'Deep hooks' is now turned off by default for better compatibility.
• Special scripts separation is now turned off by default to prevent processing bundled packages.

New features:

• Enable system Cron option.
• Update cache method option when post or taxonomies are changed.

Improvements:

• 'Delete' is now default cache action in 'Operation'.
• First click delay option.
• Option for Cron compensation on cached pages.

Fixes:

• 'Delete' in the operations by URL doesn't warmup the page.
• Optimization request test sometimes fails in self-diagnosis.
• PHP error: call to undefined 'wp_salt' function.
• Showing settings change notification after settings upgrade.

2.7.5 Fixes:

• Script error when clicking before main scripts loading.

2.7.4 Fixes:

• Script grouping doesn't work.

2.7.3 Fixes:

• 500 or 501 error on settings saving on some hostings.

2.7.2 Improvements:

• Self-diagnosis: detection of external optimization Ezoic Leap.
• Several security headers added to caching by default.
• Showing slug in device type in cache views.

Fixes:

• 500 or 501 error on settings saving on some hostings.
• Cache's auto-revalidating doesn't work while AJAX request.
• If content contains invalid encoded characters the output encoding may be broken.
• Popup menu opens and closes by clicking on 'burger' icon on some sites.
• Sometimes Ext, Full versions are updated to Base version.
• Styles import separation doesn't work with url().

2.7.1 Improvements:

• Disabling scripts optimization for Google AdSense page preview.
• Font optimization mode option.
• Item's description for custom styles.
• Scripts delayed loading disabled for MacOS lower than 10.12.6 version.
• URI exclusions: slashes at the beginning and regular expressions.

Fixes:

• On some Apple's mobiles content sometimes is not interactive.
• PHP 'set_time_limit' using unable warning on some sites.
• Page revalidating doesn't work if it is already revalidating.
• Sometimes Ext, Full versions are updated to Base version.
• Styles parsing removes math operations.

2.7 Improvements:

• Checking optimization request for 500 Request Timeout error.
• Custom styles for adjusting lazy loading of scripts.
• Delete all cache when taxonomies are modified.
• Ezoic support.
• Processing queue items count limitation.

Fixes:

• Post's cache is not updated when 'WP All Import' processes only custom attributes.
• Scripts delayed loading conflicts with Ezoic optimization.
• When the processing time of the maximum value is exceeded, empty lines appear in the queue.

2.6.4 Improvements:

• Cron execution additional checking.
• Notice about settings conflicting on 'Themify Ultra' theme.
• Post's cache auto-update when changing by REST API (e.g. from WooCommerce application).

Fixes:

• Auto post revalidation dependencies: custom URL doesn't work.
• Delayed loading of 'nomodule' scripts doesn't work.

2.6.3 Improvements:

• Notice about settings conflicting on 'The7' theme.

Fixes:

• PHP 'spl_autoload_register' notice under PHP 8.

2.6.2 Improvements:

• Admin panel security.
• PHP minimal version is 7.1.
• Scripts' simple hooks.

Fixes:

• In 'script' tag '<!--' is replaced as '<\/'.
• PHP error on some sites: Uncaught mysqli_sql_exception: Duplicate entry.
• Parse error under PHP 7.0.
• Setup wizard notification is not showed after switching from base to extended plugin version.
• Two scripts are not under CDN.

2.6.1 Improvements:

• Browser cache: MIME types for 'webp' and 'woff2' added.
• Preserving styles' original tag and id when extracting critical part.

Fixes:

• Apache is not detected on some hostings.
• Empty styles are not optimized.
• Encoding of non AMP page contains amp tags is not applied.
• Lazy loading soft appearing style overlaps other block transitions.
• Post's cache is not auto-updated if it has been moved to trash.

2.6 New features:

• Caching particular headers.
• Style's separating imports.

Improvements:

• Data that marked with [et-ajax] in comments is excluded from minimization.
• HTML minification: Exclusions for comments.

Fixes:

• Ajax requests could be blocked by another plugins.

2.5.16 Improvements:

• When post's slug is changed deleting the cache to the previous one.
• YITH WooCommerce WishList support.

Fixes:

• Encoding error when optimizing in a queue on some sites.

2.5.15 Fixes:

• Script error while delaying load scripts on some sites.
• Several URLs revalidating doesn't work on some sites.

2.5.14 Improvements:

• LiteSpeed external caching detection.

Fixes:

• Content optimization intercepts too late on some sites.
• Duplicated internal script identifier.
• HTML 'srcset' attribute sometimes doesn't contain space after comma.
• Incompatibility with Upload Larger Plugins.
• Relative URLs in external style files is interpreted sometimes as internal.
• Session cookie is not marked as secured under HTTPS.

2.5.13 Improvements:

• Notice about incompatibility with WP Cloudflare Super Page Cache.
• Notice about incompatibility with WP Meteor Page Speed Optimization Topping.

Fixes:

• Updated post metadata after updated post are not included in cache auto-updating.

2.5.12 Improvements:

• More details of errors in self-diagnosis.

Fixes:

• HTML advanced fixing: 'section' tag that contains wrong 'form' tag is misplaced.

2.5.11 Improvements:

• Direct link to download full version in upgrade message.

Fixes:

• Advanced HTML fixing breaks 'select' tag.
• On custom login page revalidation cant be completed.

2.5.10 Improvements:

• Limited compatibility with SiteGround Optimizer.
• Notice in the setup wizard about CloudFlare and CDN.
• Skipping lazy loading images with a3-notlazy attribute.
• Skipping optimizing after timeout expires of unchanged pages.

Fixes:

• Call to undefined function HtmlParseAdjustCharset.
• Notice about incompatibility with Breeze Cache.
• On some sites click on buttons before main scripts is loaded doesn't work first time.

2.5.9 Improvements:

• Lazy HTML: The option for loading before non-critical scripts.

Fixes:

• AMP validation error if Cron compensator is active.
• Lazy loading deletes rest items from 'background-image' property.

2.5.8 Improvements:

• Notice about incompatibility with Fast Velocity Minify.

Fixes:

• Inline styles that contains not commented CDATA blocks are parsed incorrectly.
• Styles separating doesn't include html node classes.

2.5.7 Improvements:

• Notice about incompatibility with SiteGround Optimizer.

2.5.6 Fixes:

• Integrity properties of styles and scripts are not updated.

2.5.5 Fixes:

• AMP validation error if Cron compensator is active.
• Early paint: block position with other fixed elements.

2.5.4 Improvements:

• HTML parsing speed is increased by 45%.

Fixes:

• HTML fix: missing 'head' tag is not restored.
• Not standard tags for 'head' are not moved to 'body'.
• Wrong correction of 'noindex', 'ul', 'ol', 'header', 'footer' tags.

2.5.3 Improvements:

• Delayed Cron execution.

Fixes:

• Lazy load HTML: anchors don't work.
• Lazy loading HTML: not loading when searching in browser.
• Limited compatibility with WP-Optimize.
• Style is parsed incorrectly if there is selector without scope.

2.5.2 Fixes:

• 'Call to undefined function' error in Base version.
• Lazy load HTML: content is shown with tags under IE and Safari.
• Lazy load of frames doesn't work on IE11.

2.5.1 Behavior changes:

• Now all other optimization plugins are marked as incompatible due to possible conflicts.

Improvements:

• Normalize URLs.
• Regular expressions for cookies in cache settings for views and users.
• Self-diagnosis: the presence of conflicting modules and settings.

Fixes:

• Background of slide from Slider Revolution is not shown. It's needed to reset your preferences to apply the fix.
• Lazy loading HTML: too long delays while loading on mobiles.
• Object URLs are always normalized to path only.
• Styles are separated without with 'onload' attribute.

2.5 Behavior changes:

• Compatibility with LiteSpeed Cache and Autoptimize is not more supported.
• Scripts minification and styles grouping now are turned off by default to increase common compatibility.

New features:

• Lazy loading HTML.
• Styles grouping without combining.

Fixes:

• Localization is not reloaded on 'change_locale' event.
• On some Apple's mobiles content sometimes is not interactive.
• Styles that contain zero symbols are excluded from page.

2.4.4 Improvements:

• Self-test of Cron.
• Temporary cache not optimized content after auto-revalidation.

Fixes:

• HTML fixing: 'center' tag is broken if it contains unopened 'p' tag.
• If 'ul' or 'ol' tag contains not standard tags they will be removed from there.
• Wrong styles parsing of incorrect @supports blocks.

2.4.3 Improvements:

• GetButton added to special scripts and JivoSite corrected.

Fixes:

• Lazy loading's 'noscript' insertion can change styles behavior on some sites.
• On the servers that doesn't support early request ending there is a delay of displaying pages.

2.4.2 Improvements:

• The speed of separating styles is increased by an average of 30%.

2.4.1 Improvements:

• Optimizing element search by CSS selector.

Fixes:

• Content encoding type from cache on some hosting is incorrect.
• If HTML has content above 'DOCTYPE' tag styles auto-splitting can work incorrectly.
• If cache warmup is disabled, then the URL cache revalidating is not ended completely.
• Java script minification removes new line after empty "" string.
• Lazy loading can prevent existed lazy loading working correctly.
• Operations are always shown as working if external permanent object cache is used.

2.4 Improvements:

• If EULA is not accepted then showing minimal UI.
• Self-diagnosis.
• Setting block switch.
• Setup wizard.

2.3.2 Fixes:

• Lazy loading soft appearing style overlaps other block transitions.
• Simple URL refreshing also enumerates children.

2.3.1 Improvements:

• The setting 'Temporary cache not optimized content' is turned off by default.

2.3 Behavior changes:

• Now in the extended version, when you turn off content optimization, the all restrictions disappear. This makes it possible to use fully functional caching for free.
• Now, at the beginning of optimization, caching occurs separately to speed up the formation of the actual content of the site.

Improvements:

• Lazy revalidation: Temporary cache not optimized content.
• Refreshing children URLs by specifying asterisk at the end.

2.2.3 Improvements:

• List to update when a post is changed is added by categories and posts base.

Fixes:

• The activation panel is not visible if the server is unavailable.

2.2.2 Fixes:

• Saving settings with XPath contains 'concat' is blocked by ModSecurity.
• Styles processing can cause PHP error 'Call to a member function removeChild()'.

2.2.1 Improvements:

• Correcting comments with long dash.
• Entering multiple URLs to update.
• Stop and restart if an update happened during optimization.

Fixes:

• Broken cache descriptor leads to optimize page while request.
• Lazy loading soft appearing style overlaps other block transitions.
• Optimization of a mobile version is not always recognized by the site.
• Optimization requests can be skipped by redirecting to themselves on some hosting.
• Queue item is skipped if the same URL already exists by external request.

2.2 Improvements:

• Multisite support.

Fixes:

• "Compress" encoding is not working correctly.
• AMP pages fail validation.
• Detecting images changes doesn't use WEBP files.
• Not the same site addresses are cached to main site address.
• Old Safari browser JS optimization compatibility.

2.1 Improvements:

• Attachment URLs and meta tags handling.

Fixes:

• Slashes in styles' strings are duplicated.

2.0.3 Improvements:

• Styles processing speed increase.

Fixes:

• CloudFlare limits requests for not more than 100 seconds.
• Script error if WPMeteor in enabled.
• Unclosed tag 'p' is removed instead of leaving with opening correction.

2.0.2 Improvements:

• Warning about conflict lazy loading settings with 'a3 Lazy Load' and 'Lazy Load - Optimize Images'.
• Warning about conflict settings with 'Jetpack'.
• When the page display limit is reached, switch to simple caching mode.

Fixes:

• CSS colors with variables are parsed incorrectly.
• HTML's UTF-8 symbols are encoded incorrectly under some hostings.
• Showing 0x8019030C error code instead of HTTP 524.

2.0.1 Improvements:

• Processing timeout has been increased to 10 minutes for heavy pages.

Fixes:

• Pageview statistics counts REST API calls.

2.0 Behavior changes:

• Now free version is full with limits to page visits and product's banner on each page.

Improvements:

• LazyLoad image exclusions now apply to iframe.
• The support button now opens the site page instead of the email client.

1.8.9 Improvements:

• Upgrading from free version to full.

1.8.8 Fixes:

• HTML's UTF-8 symbols are encoded incorrectly under some hostings.
• Styles that contain %7B%7Bid%7D%7D or similar are parsed incorrectly.
• URLs are ended and not ended with slash are interpreted as the same.
• Unable to upgrade Extended and Premium version.

1.8.7 Improvements:

• Import/export of settings.

1.8.6 Improvements:

• Excludes for automatic non-critical CSS.
• List of additional pages to update when a post is changed.

Fixes:

• 'source' from 'picture' tag is processed incorrectly.
• After restoring the settings, advanced-cache.php is not updated.

1.8.5 Fixes:

• Safari browser compatibility.
• Update terminates due to timeout on some hosting.

1.8.4 Improvements:

• Initializing tables on plugin's activation.
• Optimization queue management.
• The status of the end of page optimization.

Fixes:

• Scripts relying on document.readyState are loaded incorrectly.
• Undefined index in oper.php.

1.8.3 Improvements:

• Showing an error when using caching of other plugins.

Fixes:

• Bing's crawler gives a warning about large page size.
• Cached https version is given by http.
• Lazy load for iframe: non pixel size is used.
• Sometimes Ext, Full versions are updated to Base version.
• Updating to full version is not always working.

1.8.2 Fixes:

• Arguments not in lowercase were handled incorrectly.
• Letters' case in styles' variables are lost.
• Styles' color attribute sometimes is parsed incorrectly.
• Web server's 'pagespeed' module breaks styles loading.

1.8.1 Improvements:

• Asynchronous operations.

1.8 Behavior changes:

• Updating statistics in the status now is only in manual mode to avoid high server load.

Improvements:

• Asynchronous operations.
• Stopping the calculation of statistics.
• Warning about conflict settings with 'EWWW Image Optimizer'.
• Warning about conflict settings with 'Optimole'.
• Warning about conflict settings with 'Smush'.

Fixes:

• Redirect while page optimizing.
• Wrong query parsing with numbers as parameters.

1.7.7 Fixes:

• Lazy load: Placeholders for images hosted on external site have incorrect size.
• Styles grouping doesn't inline non critical part.

1.7.6 Fixes:

• Style grouping does not properly handle content when an 'import' directive is present.
• Styles 'turn' value is parsed incorrectly.

1.7.5 Fixes:

• Symbols '-->' in attributes break HTML in additional fixing.

1.7.4 Improvements:

• Options: Multisite support.
• Woodmart theme: Warnings about conflicting settings.
• Woostroid2 theme: Warning about using page preloader.

Fixes:

• JetMenu is always shown expanded.

1.7.3 Improvements:

• Woodmart Theme: Favorites Support.

Fixes:

• Attributes with JSON values are broken while fixing HTML.
• CSS auto-separation places non-critical styles as first while grouping.
• Clicks are not processed until the scripts are loaded.
• HTML fixing changes 'p' tag covering.

1.7.2 Improvements:

• Clear cache notification.

Fixes:

• Mismatched version is always shown as new.

1.7.1 Improvements:

• Lazy Load: Images for preview videos.

Fixes:

• 'WP_CACHE' define is placed inside comments on some sites.
• LazyLoad: Video: YouTube: Preview is not always loaded.
• When caching mode is disabled by other plugins, optimization is always processing.

1.7 Improvements:

• Erasing the current queue when updating the cache.
• One admin menu item with sub-items.
• Upgrading from free version to full.

Fixes:

• CSS 'vmax' value incorrect parsing.
• Google Analytics script wrong detection.
• The tag 'xml' is displayed as text.

1.6.8 Fixes:

• Attribute 'data-bg' conflicts with other techniques.
• CSS auto-separation places non-critical styles as first while grouping.

1.6.7 Improvements:

• Compatibility with Optimole.

Fixes:

• CSS selectors minify: space before ':' is removed.
• On some sites, the error "WordPress database error: duplicate entries" appears.

1.6.6 Fixes:

• Refresh cache: PHP Fatal error in free version: Call to undefined function GetExtContents().

1.6.5 Fixes:

• CSS import directive is not on top of style while grouping.
• JS delayed load with integrity is failed.
• Tag 'address' looses children.

1.6.4 Improvements:

• Reducing the consumed memory when updating from the sitemap.

Fixes:

• LazyLoad: getComputedStyle error.
• Periodic cleaning might not work on some sites with blocked 'post' internal queries.
• With disabled grouping and auto-splitting CSS fonts are not loaded.

1.6.3 Fixes:

• Undefined variable $run in admin on some sites.

1.6.2 Fixes:

• Processing queue might not work on some sites with blocked 'post' internal queries.

1.6.1 Fixes:

• CSS: incorrect parsing of font name containing forward slash.
• Incorrect CSS parsing of 'rgb' attribute without commas.
• Inlined styles are always processed last.
• URLs started with '\' aren't prepended with 'http'.

1.6 Improvements:

• Auto-cleanup.
• Automatic page preprocessing (warming up).
• Clearing empty directories.
• Display efficiency in status.
• Minimum WordPress version is 4.5.
• Pages processing queue.

Fixes:

• Inlined background images get lazy loaded.
• Postpone processing might not work.
• Status: size is shown without decimal.
• When the page is in the cache then cron is not executed.

1.5.1 Improvements:

• Font separation in lazy loading styles.
• Premium update.
• TrinityMedia compatibility.

Fixes:

• 404 caching.
• Admin scripts.
• Ajax login redirects to cached page.
• URL revalidating with anchor doesn't work.

1.5 Improvements:

• Delayed loading of non-critical styles.
• Input-output security improvements.

1.4.5 Fixes:

• HTML parsing compatibility.

1.4.4 Improvements:

• CSS processing unification.
• Content parsing under multi-byte strings overloading.
• Parsing CSS uses a lot of memory.

Fixes:

• CSS 'calc' function might be parsed incorrectly.

1.4.3 Improvements:

• CSS background images processing.

Fixes:

• Smart Slider 3 compatibility.

1.4.2 Improvements:

• Exclude debug pages from indexing.

Fixes:

• Deferred CSS isn't loaded under noscript.
• Non-critical styles are not loaded under Firefox.

1.4.1 Improvements:

• Exclude debug pages from indexing.
• Russian localization correction.

1.4 Improvements:

• Don't optimize content for user cache.
• Fonts' option: Include to critical styles.
• Trace improvements.

Fixes:

• Caching wrong user context.
• Content async optimization doesn't work on sites under HTTP with CloudFlare under HTTPS.
• Content forced debug options don't apply to WordPress's lazy loading.
• Frames lazy load: about:blank treated as relative address.
• Incorrect minification of i18n.js.
• Internet Explorer 10 and lower: page is not interactive.

1.3.4 Fixes:

• Content async optimization doesn't work on sites under HTTP with CloudFlare under HTTPS.
• Image's lazyload placeholder has wrong size if srcset is set.

1.3.3 Fixes:

• Page enumeration links are wrong.

1.3.2 Improvements:

• Background page optimization.

Fixes:

• Apache on Windows: revalidating is too long.

1.3.1 Fixes:

• CSS IE suffixes are not parsed correctly after "important" suffixes.
• Comment's contents are appended by space at the end.
• Elementor's script is detected as special.

1.3 New features:

• CSS smart splitting.

Improvements:

• CSS grouping is turned on by default.
• Scripts grouping.
• Scripts' delayed loading speed increasing.

Fixes:

• LazyLoad: WooCommerce product image might be not processed.
• Yandex Webvisor: optimized styles are not loaded.

1.2.1 Improvements:

• Cache separation optimization.

Fixes:

• In Yandex-metrics's control panel the counter is displayed incorrectly set.
• Optimized styles are not loaded on Internet Explorer 11 and below.

1.2 Improvements:

• CSS inlining as body.

Fixes:

• Links are always encoded.

1.1 Improvements:

• Default timeout for scripts is 4.5 seconds.
• Warning about resetting the cache after changing the settings.

Fixes:

• Incorrect escaping of the internal special script.

1.0.1 Improvements:

• Backup previous settings structure.

Fixes:

• 'script' tags with 'type' of 'javascript' are escaped.
• License block is invisible just after installation if remote configuration is unavailable.
• WooCommerce notices might be cached to common pages.

1.0 New features:

• Browser cache.
• CDN support.
• Cache lazy refresh.
• Cache revalidation.
• File cache engine.
• Fonts optimization.
• HTML markup checker.
• Images lazy loading.
• Per user cache support.
• Polylang plugin support.

Improvements:

• Auto-detect already used lazy loading technique.
• Behavior changes notification warning.
• Checkboxes inner select links are now in Combo style.
• Clearing obsolete cache data.
• Customizing your own content separators.
• Disabling WordPress emoji icons.
• Download Preview and Full bundles by current version.
• LMS by LifterLMS support.
• Lazy load: images appearing animation.
• List items operations animation.
• Making backups when change .htaccess.
• Not meeting minimum requirements notifications.
• Optimization of loading external scripts.
• Precompress JS, CSS, WebP.
• Reset settings.
• Revalidating page's cache after post change.
• Security: sanitizing input parameters.
• Storing settings in JSON format to ensure import/export of data.

Fixes:

• "Key" link after "Order" button is invalid.
• 'Key' buttons might have background on some themes.
• AMP: post images aren't shown.
• Block's help button is shifted to right.
• CSS optimization: If script content is not changed then inlining is ignored.
• Cache is not reset if admin changes user depended data.
• Call to undefined function: wpml_element_type_filter.
• Characters are stripped from image URLs.
• Compatibility issues with Polylang plugin.
• Dirty HTML incorrect parsing.
• Doesn't fix script without closing tag.
• Frontend plugin queries are not valid for some sites.
• In rare cases admin UI is blocked.
• In the admin panel, the warning 'Undefined index' is shown, if DEBUG mode is enabled.
• Inline comboboxes too short in WP 5.3 or higher.
• JS minification.
• Multiple appearing of Change Version warning.
• On some systems, script loading fails, resulting in a site loading error.
• Output on some sites might be broken.
• PHP 5.4 'empty' operator compatibility.
• PHP 8: Fatal error on plugin initialization (call_user_func).
• PHP Compatibility Checker by WPEngine detects issues with PHP 7.3.
• Save settings result message is blocked by security plugins.
• Scripts and so on are not counted in statistics.
• Separator line is invisible under WordPress 5.2 or higher.
• Settings layout is too wide on some themes.
• Settings: 'Save changes' button is always in English.
• Unable to upgrade Extended and Premium version.