Smush – Image Optimization, Compression, Lazy Load, WebP & CDN

Changelog

4.1.2 ( 2026-06-22 )

• Improvement: UX improvements

4.1.1 ( 2026-06-11 )

• Improvement: Stability improvements and minor bug fixes

4.1.0 ( 2026-06-01 )

• Improvement: Added notice when images fail to optimize
• Improvement: CDN generating long database queries resulting in broken images
• Improvement: Prevented unnecessary settings save and notification when blurring an empty textarea
• Improvement: UI and UX improvements
• Fix: Configs created in Smush 4.0 not appearing in Hub “My Configs” list
• Fix: Activity sidebar sticky position not working correctly on screens wider than 1800px
• Fix: Optimization action not triggering when Next-Gen formats disabled via dashboard toast notification
• Fix: Enabling Next-Gen server configuration on multisite triggering console errors
• Fix: Smush overriding the WordPress dashboard footer
• Fix: Free version not enforcing 5MB file size limit after downgrading from Pro
• Fix: PHP warnings and errors

4.0.3 ( 2026-04-29 )

• Fix: Resolved issue where Super Smush was not working on main site and subsites.
• Fix: Improved White Label behavior across plugin UI and status screens.
• Fix: Prevented opt-in toast from reappearing when restarting Smush without a refresh.
• Fix: Preload settings changes are now recorded in the Activity Log.
• Improvement: Updated onboarding and Directory Smush welcome modal UI and copy.
• Improvement: Minor visual refinements across header and main menu.

4.0.2 ( 2026-04-21 )

• Fix: Configs not applied correctly in certain situations.
• Fix: Corrected settings reset behavior during uninstallation when data preservation is disabled.
• Fix: Resolved a permissions issue affecting Super Compression access in Multisite environments.
• Fix: Restored PNG to JPG conversion functionality for free version users.
• Fix: Minor code improvements and stability refinements.

4.0.1 ( 2026-04-15 )

• Improvement: Informational notice when CDN propagation initiated
• Fix: CDN failing to propagate on new sites

4.0 ( 2026-04-14 )

• New: Reimagined Smush interface for a seamless, clutter-free optimization experience
• New: Comprehensive Activity Log to track real-time scans, optimizations, and configuration changes
• New: Enhanced Super Compression now available as a free Hub-connected feature for all users
• New: Uninterrupted Bulk Smushing – optimize your entire library at once without the 50-image limit
• New: Free Background Processing to handle heavy optimization tasks while you work
• Improvement: Transitioned to real-time Auto-save for all settings to provide a frictionless workflow
• Fix: Minor code improvements and performance refinements

3.24.0 ( 2026-02-23 )

• Improvement: Stability improvements

3.23.4 ( 2026-02-05 )

• Fix: PHP error fixed

3.23.3 ( 2026-02-03 )

• Improvement: Stability improvements
• Fix: Minor bug fixes

3.23.2 ( 2026-01-16 )

• Improvement: Dependency updates and minor code improvements

3.23.1 ( 2025-12-17 )

• Improvement: Code improvements and minor bug fixes

3.23.0 ( 2025-12-03 )

• New: Restore multiple images at once with the new Bulk Restore option on the Media Library page
• Improvement: Restore All Images feature now shows exact reason for restoration failure
• Improvement: Backup original images and Optimize original images enabled by default for new users
• Fix: Smush Directory keeps showing images that need to be optimized
• Fix: LCP preload tag not added for relative image URLs
• Fix: Elementor background images not converted to Next-Gen formats
• Fix: Lazy-loaded video thumbnails not working in Elementor

3.22.1 ( 2025-10-01 )

• Fix: Memory issues caused by Elementor integration

3.22.0 ( 2025-10-01 )

• Improvement: More accurate use of fetchpriority=high based on LCP data
• Improvement: General UI enhancements
• Fix: LCP image not lazy-loaded after disabling preload
• Fix: Incorrect Preload Critical Images status shown in summary box
• Fix: Wrong retina image size applied by the auto-resize module
• Fix: Incorrect LCP image detected on mobile in certain cases

3.21.1 ( 2025-09-02 )

• Fix: Auto-resize module using incorrect aspect ratio for cropped images
• Fix: Auto-resize module using lower quality version in certain situations
• Fix: Images using width or height attributes with percentage values resized incorrectly
• Fix: Images in Divi shrinking on page scroll in mobile devices

3.21.0 ( 2025-08-18 )

• New: Automatic image resizing option in Lazy Loading to make sure every image fits its container size
• New: Add Missing Dimensions option in Lazy Loading to resolve Pagespeed audit of “Ensure images have explicit height and width”
• Improvement: Changed “Automatic Resizing” feature name in CDN to “Dynamic Image Sizing”
• Improvement: Added an Advanced section on the Bulk Smush page to streamline the experience
• Improvement: Added an Advanced section on the Lazy Load page to streamline the experience
• Fix: Minor code improvements

3.20.0 ( 2025-06-17 )

• New: Lazy load YouTube and Vimeo videos to improve page load speed
• Fix: Resize Detection feature sometimes doesn’t work correctly with Lazy Load
• Fix: Layout shift with lazy loading
• Fix: Timeout error is returned for some transparent PNGs when Smush Mode is set to Basic
• Fix: Not all options are deleted from the database after uninstalling
• Fix: All-In-One Security incorrectly reporting issue due to Smush loopback check

3.19.1 ( 2025-05-29 )

• Improvement: Only detect LCP element above the fold
• Improvement: Add fetchpriority high to LCP element
• Improvement: Ensure compatibility of LCP feature with popular caching plugins
• Improvement: Ability to exclude pages from LCP preloading
• Improvement: Ability to clear LCP cache
• Fix: LCP element not located in certain scenarios

3.19.0 ( 2025-05-12 )

• New: Preload critical images to improve page load speed and resolve LCP (Largest Contentful Paint) warnings
• Fix: Filenames with Chinese characters were automatically converted to Unicode, causing display issues
• Fix: Lazyload module removes the background size attribute from inline CSS
• Fix: Picture tags are lazy loaded even in excluded areas

3.18.1 ( 2025-04-24 )

• Improvement: WP 6.8 compatibility

3.18.0 ( 2025-03-11 )

• New: Reduced image filesize at better visual quality with new AVIF conversion!
• Improvement: White label improvements
• Improvement: Better stats for WebP conversion
• Improvement: Compatibility check and minor fixes for PHP 8.4
• Fix: Some images listed as not optimized after Local WebP conversion
• Fix: CDN forcing browsers to load full-sized images for smaller container size

3.17.1 ( 2025-02-06 )

• Improvement: Security hardening
• Improvement: Minor code improvements

3.17.0 ( 2025-01-29 )

• Improvement: Use streams to send full image to the Smush API
• Fix: Number of optimized images inaccurate
• Fix: When Local WebP Direct Method and Lazy Load are enabled, images inside picture tags not being served as WebP
• Fix: Error “Server configurations haven’t been applied yet” shown unnecessarily sometimes
• Fix: CDN slowing down page load due to unnecessary DB queries
• Fix: Divi breaking Smush CDN image resizing
• Fix: Auto-resize feature not adding new sizes when srcset is already present in img tag

3.16.12 ( 2025-01-08 )

• Fix: Conflict with Formidable Forms
• Fix: Avoid image fetch errors

3.16.11 ( 2024-12-10 )

• Fix: CDN exclusions conflict with auto resizing

3.16.10 ( 2024-12-04 )

• New: Added a UI option to exclude specific images from Smush CDN.
• Improvement: Disabled Noscript tags by default to prevent broken images and potential performance regressions.
• Improvement: Enhanced the Bulk Smush process for a smoother user experience.
• Improvement: Improved WPML compatibility for seamless multilingual support.
• Fix: Excluded lazy loading placeholders from the CDN to resolve conflicts and prevent broken images.
• Fix: Added WP 6.7 compatibility fixes.

3.16.9 ( 2024-11-13 )

• Improvement: Smush API upgrades and improvements for better memory management
• Fix: Prevent broken images on Smush CDN when using relative links
• Fix: Hummingbird Performance Test conflicts
• Fix: Missing thumbnails when using PNG to JPG conversions

3.16.8 ( 2024-09-19 )

• Fix: Smush API handing improvements

3.16.7 ( 2024-09-11 )

• Improvement: Reduced memory consumption during the Smush process
• Improvement: Better directory Smush compatibility with Flywheel
• Fix: Unicode characters in image URLs causing issues
• Fix: Improved compatibility with native lazy loading
• Fix: PHP errors and warnings

3.16.6 ( 2024-07-30 )

• Fix: PHP warnings
• Improvement: Compatibility with WP 6.6

3.16.5 ( 2024-06-20 )

• Improvement: Security improvements
• Fix: Compatibility issue with Divi

3.16.4 ( 2024-05-22 )

• Fix: Loopback error shown unnecessarily for some sites
• Improvement: Better UI for the loopback error

3.16.3 ( 2024-05-15 )

• Improvement: Better handling of rotated images
• Improvement: Better pre-flight checks before bulk Smush is started
• Fix: Performance issues in CDN and webp link replacement functionality
• Fix: Bulk Smush performance issues
• Fix: Compatibility issue with wp.com

3.16.2 ( 2024-04-09 )

• Fix: LazyLoad module not working correctly for picture elements in certain situations
• Fix: LazyLoad module not working correctly for some CSS variables
• Fix: Better handling of !important CSS rules by the LazyLoad module
• Fix: Performance issues on some WooCommerce pages

3.16.1 ( 2024-03-27 )

• Improvement: Better compatibility with page builders
• Improvement: General code improvements
• Fix: WP Offload integration preventing some formats from getting offloaded

3.16.0 ( 2024-03-06 )

• New: Directly serve Local Webp images, no rewrite rules required!
• New: Support for inline style tags in CDN and Local WebP modules
• New: Support for multiple background images in CDN and Local WebP modules
• New: Better support for relative links in CDN and Local WebP modules
• New: Better REST API support in CDN and Local WebP modules
• New: CDN and Local WebP images served in WooCommerce REST API responses
• New: Local WebP compatibility with Windows IIS servers
• New: Local WebP compatibility with bedrock
• New: Local WebP compatibility with Litespeed
• New: Local WebP compatibility with Cloudways
• New: Lazy loading of background images
• Fix: Local WebP redirection doesn’t work for images with special characters
• Fix: Free version of Smush creating smush-webp folder when activated
• Fix: Extra slash added to image URLs during optimization
• Fix: WP 6.3 compatibility – Skip lazyload for high priority images

3.15.5 ( 2024-02-06 )

• Improvement: Update the number of CDN locations
• Improvement: Minor copy and UI adjustments

3.15.4 ( 2024-01-23 )

• Fix: Media library scan gets stuck on some websites
• Improvement: Minor copy and UI changes

3.15.3 ( 2023-12-20 )

• Improvement: Code stability improvements

3.15.2 ( 2023-12-06 )

• Fix: Compatibility issues with WP Offload Media integration
• Fix: Resize module deletes thumbnail when there is a naming conflict

3.15.1 ( 2023-11-15 )

• Improvement: Code stability improvements

3.15.0 ( 2023-10-11 )

• Improvement: Image size limit increased for pro version
• Fix: Query running frequently and causing performance issues on some sites

3.14.2 ( 2023-08-23 )

• Fix: Media library scanner not identifying some MariaDB versions correctly
• Improvement: Code improvements

3.14.1 ( 2023-07-24 )

• Improvement: Minor code improvements and fixes

3.14.0 ( 2023-07-17 )

• New: Ultra Smush – Level up your image compression, while preserving remarkable image quality
• Fix: Resolved issue with image resize in WP versions < 6.0
• Fix: Resolved PHP 8.x error on GoDaddy Managed WP Hosting
• Fix: Other minor bug fixes and UI improvements

3.13.2 ( 2023-07-05 )

• Improvement: Small code and text improvements

3.13.1 ( 2023-06-13 )

• Improvement: Better memory management during scans
• Fix: Dot added to file path when year and month directories disabled
• Fix: Compatibility issue with WP.com
• Fix: Rename config functionality not working
• Fix: Compatibility issue with WP Offload Media
• Fix: PHP warnings
• Fix: Duplicate query

3.13.0 ( 2023-05-30 )

• New: Scan for detecting changes in the media library
• Improvement: Performance improvements on large sites
• Improvement: Code refactoring
• Fix: PHP warnings and notices
• Fix: Missing comments for translation strings that have placeholders in them
• Fix: Compatibility issues with WP Offload Media
• Fix: Timeout on Smush pages when there are more than 200k images
• Fix: Images incorrectly marked as requiring resmush
• Fix: Ignore link stuck in Grid Layout mode in the media library

3.12.6 ( 2023-03-09 )

• Enhance: Compatibility with WordPress 6.2.
• Fix: Upgrade modal reappears after closing

3.12.5 ( 2023-01-18 )

• Fix: CDN notice issue
• Fix: PHP 8.2 compatibility warnings
• Fix: Smush acting as free on staging

3.12.4 ( 2022-11-17 )

• Improvement: Code and compatibility improvements

3.12.3 ( 2022-10-24 )

• Fix: Free to pro upgrade issue

3.12.2 ( 2022-10-19 )

• Improvement: Security hardening
• Fix: Issues on older PHP versions

3.12.1 ( 2022-10-11 )

• Fix: PHP error on non-English language sites

3.12.0 ( 2022-10-11 )

• New: Bulk smush images in the background!
• New: Revised limits on bulk image optimization
• New: Better GDPR compliance by replacing Google fonts with Bunny fonts
• New: Filter on media library page to view media items with errors
• New: Option to receive an email once bulk smush is complete
• Fix: Some images incorrectly selected for resmush
• Fix: Database error while converting PNG to JPG on WordPress 6.1 Beta

3.11.1 ( 2022-08-19 )

• Fix: Fallback to sequential processing when parallel processing not possible

3.11.0 ( 2022-08-11 )

• New: Smush all image sizes in parallel for improved performance
• Improvement: Code improvements

3.10.3 ( 2022-07-14 )

• Enhance: CDN activation process
• Enhance: Improve media library image filters
• Enhance: CDN compatibility with Avada theme
• Enhance: Add notice about disabled folders in directory Smush module
• Fix: Errors table UI on bulk smush page
• Fix: Bulk smush UI when images have been removed when page was already loaded
• Fix: Cron job of logger library not running properly
• Fix: Remove tools meta box from dashboard page
• Fix: Recover image from NextGen Gallery button does not reset Smush data
• Fix: Image dimensions meta does not reset after restoring a resized image in NextGen Gallery
• Fix: Incorrect percent of total savings on Dashboard page
• Fix: Pro feature enable/disable toggles are clickable in free version

3.10.2 ( 2022-06-16 )

• Enhance: Data processing
• Enhance: Database calls
• Fix: Loading images from remote location

3.10.1 ( 2022-06-09 )

• Fix: PHP error on dash page

3.10.0 ( 2022-06-09 )

• New: Lossy compression is now free for all users
• New: Summary meta box
• Enhance: Move out image restore to bulk smush module
• Enhance: Move out image resize detection to settings module
• Enhance: Update opt-in notice design
• Fix: Upsell notice logic
• Fix: Skip image sizes not in WordPress format
• Fix: Skip onboarding wizard if a config has been applied
• Fix: Image sizes selector
• Fix: Rename “Basic” config to “Default”
• Fix: Do not show WebP notice in case of error
• Fix: Auto compression does not work for NextGen Gallery
• Fix: Settings link on Plugins page
• Fix: Welcome modal does not close when we go to the Bulk Smush page

3.9.11 ( 2022-05-23 )

• Enhance: Code quality
• Fix: Minor code quality issues
• Fix: Update internal libraries

3.9.10 ( 2022-05-17 )

• New: Gravity Forms integration
• New: smush_background_images_regex and smush_images_from_content_regex filters to adjust regex rules for finding images on the page
• New: smush_cdn_before_process_background_src filter to adjust background image src
• New: Add additional parameters to smush_skip_adding_srcset filter to allow disabling auto-resize for selected images
• Enhance: Compatibility with WPBakery page builder
• Enhance: Compatibility with Offload Media plugin
• Enhance: Handling images via REST API endpoints
• Fix: Directory Smush savings cached and not updated
• Fix: “What’s new” modal not hiding if white label is enabled
• Fix: Missing primary key on smush_dir_images table
• Fix: Scaled images not being resized on resize settings change
• Fix: Bulk Smush will now show all errors, instead of just the first 5
• Fix: Animated GIF images not being excluded from bulk Smush
• Fix: Only allow network wide activation of Smush

3.9.9 ( 2022-05-03 )

• Enhance: Code quality
• Enhance: Handling user input
• Enhance: Update React modules to latest versions
• Fix: XSS vulnerability when uploading modified configs

3.9.8 ( 2022-03-22 )

• New: Add expiry header to Nginx template for WebP
• New: Add wp_smush_webp_dir filter to customize WebP directory
• Fix: XSS vulnerability
• Fix: Disable submit button on Integrations page when no integrations available
• Fix: CDN bandwidth limit status message
• Fix: Text alignment issue on Bulk Smush page
• Fix: Highlighting selected lazy load spinner with color accessibility
• Fix: Compatibility issue with WP Offload Media 2.6.0
• Fix: Undefined offset notice with certain WooCommerce themes

3.9.7 ( 2022-03-01 )

• Fix: Local WebP is not activated on applying config after reset settings
• Fix: Missing WebP file for WP scaled images
• Fix: Fatal error on PHP 5.6
• Fix: Compatibility issue with WP Offload Media

3.9.6 ( 2022-02-09 )

• Enhance: Do not close the Directory Smush modal in case of error
• Enhance: Tooltips in CDN module
• Fix: Compatibility issue with PHP 8.1
• Fix: “Choose Directory” button loading state in case of error
• Fix: PNG to JPG conversion leaves behind some thumbnails after deleting the image
• Fix: PNG images that need resizing don’t get converted to JPG
• Fix: Issue creating the WebP test files
• Fix: Incorrect unique file names during PNG to JPG conversion
• Fix: Duplicate thumbnails while converting PNG to JPG
• Fix: Auto refresh API status when updating to Pro version

3.9.5 ( 2022-01-25 )

• Fix: Translation strings
• Fix: Remove upsells
• Enhance: Update admin menu icon

Changelog for previous versions.