Wordpress Plugin
Download latest - 3.2.10

Download Stats

Today 63
Yesterday 13,774
Last Week 112,998
All Time 5,251,774
Banner 772x250

WP-Optimize Cache is a revolutionary, all-in-one WordPress performance plugin that caches your site, cleans your database, compresses your images.

Our cache feature is built around the worlds fastest caching engine. This simple, popular and highly effective tool has everything you need to keep your website fast and thoroughly optimized!

[vimeo https://vimeo.com/333705073]

It does it in three clever ways:

  • It allows you to clean and optimise your database.
  • It gives you the option to compress your images.
  • It allows you to cache your pages, for super fast load times (read more caching information below).

It also enables you to minify and asynchronise CSS and JavaScript (aka. "defer CSS JavaScript").

Extensive tests show the cache feature alone can make WordPress sites at least as fast as any other caching or speed plugin available and often faster. But when you combine the cache with the database optimization, image compression features and minify, the speed difference with alternative solutions is significant.

NEW: The built-in minify feature adds another layer of optimization, reducing the size and number of requests to your server.

1. Cleans the database

Your WordPress database stores everything that you need for your website plus many things that you dont. WP-Optimize Cache clears out all of this unnecessary data, cleans up your tables and even retrieves space lost to data fragmentation.

Mobile-friendly and incredibly simple to use, it:

  • Removes all unnecessary data (e.g. trashed/unapproved/spam comments, stale data) plus pingbacks, trackbacks and expired transient options
  • Compacts/de-fragment MySQL tables with a button-press
  • Detailed control of which optimizations you wish to carry out
  • Carries out automatic weekly (or otherwise) clean-ups
  • Retains a set number of weeks data during clean-ups
  • Performs optimizations without the need for running manual queries
  • Automatically trigger a pre-optimize backup via UpdraftPlus
  • Show database statistics and potential savings

Why is this important?

  • The tables in MySQL (the database that WordPress uses) will, over time, become inefficient as data is added, removed, moved around. Asking MySQL to optimize its tables every now and again will keep your site running as fast as possible. It wont happen by itself.
  • Every-time you save a new post or pages, WordPress creates a revision of that post or page. If you edit a post 6 times you might have 5 copy of that post as revisions. This quickly adds lots of rarely-used data to your database tables, making them unnecessarily bloated, and slower to access.
  • There might be thousands of spam and un-approved comments in your comments table, WP-Optimize Cache can clean and remove those in a single click.
  • WP-Optimize Cache reports which database tables have overhead and wasted space to allow you to reduce them.
  • Automatically cleans your database every week and respects the Keep last [selected number] weeks data option.

WP-Optimize Cache helps you to:

  • Make space: When you edit a post or page on your website, WordPress automatically saves the new revision to the database. If you edit things a few times (and particularly if the post is long), your database soon gets clogged up with old revisions that just sit there, taking up valuable space. WP-Optimize Cache removes these unnecessary post revisions, freeing up valuable Megabytes of data and increasing speed and efficiency. It also cleans up your comments table, removing all the spam and un-approved comments that have built up with a single click.

  • Take control: WP-Optimize Cache reports on exactly which of your database tables have overhead and wasted space, giving you the insight, control and power to keep your website neat, fast and efficient.

  • Keep it clean and fast: Once enabled, WP-Optimize Cache can run an automatic clean-up on a schedule, keeping a selected number of weeks data, according to your specification.

2. Compresses images

Loading large images is often the biggest culprit in slowing your sites loading time.

WP-Optimize Cache has an image-compression tool that uses cutting-edge lossy compression techniques to convert large images (which take a long time to load up) into compressed files saved in your image library, where they can be uploaded in an instant.

It enables you to compress PNG, JPG, GIF, BMP and TIF pictures up to 5MB in size, and its packed with other useful features, including:

  • Bulk compression, allowing you to compress multiple existing images at the same time.
  • Intelligent, multi-pass lossy compression algorithm, which gives you twice the compression with much less loss of quality.
  • Restore Originals function, which allows you to retrieve or revert back to your original images at any point.
  • Auto-compress function, which automatically compress images as theyre added to the site.
  • EXIF Data-Keeping means image information is retained even once the image is compressed.

This WordPress plugin allows you to increase your page speed without compromising the image quality.

3. Caches pages

Depending on your setup, page caching can be what makes the biggest difference to your website's speed and performance.

Caching involves keeping dynamic data in a temporary storage area so that it can be retrieved in an instant. Caching is a sure-fire way to ensure that web pages load at lightning-fast speed.

Practically, our powerful yet simple cache feature generates the cache when a user visits any page or post on your site. WordPress processes the dynamic php files to generate that page, and we save it into a static html file in the cache folder, so that when the next user visits, the page is cached and doesn't need processing. This caching results in a much faster loading time, and gives a slight break to your server. So caching increases speed and performance while reducing the server's use of resources.

With minimal configuration, caching your site with WP-Optimize Cache is easy to do thanks to a load of useful features, including:

  • Cache preloading to ensure the cache is always ready and loaded.
  • Gzip compression of HTML, JavaScript, and CSS to reduce site load time.
  • Device-Specific cache to ensure the optimized page version is always served.
  • Advanced cache exclusion rules, so that you can cache almost anything by excluding logged in users, specific URLs or cookies.
  • Browser Cache to instruct client browsers to reuse cached resources (HTML, CSS, JS, images) if no changes were made since the last request.

Minify and combine CSS and JavaScript

On top of its three main features, WP-Optimize Cache also has the more advanced minification feature. Combining and minifying your site's assets will reduce the number of requests to your server (by combining them) and reduce their size (by minifying their content).

Together with caching and Gzip compression, this will improve the performance and time to "first contentful paint".

The minify feature also enables you to defer CSS and JavaScript. Defering CSS and JavaScript allows you to load non-critical assets after the main page load, resulting in an apparent speed gain. Minifying and defering CSS and JavaScript also makes Google PageSpeed Insights happy!

Overall WP-Optimize brings the best cache and optimization technology together in a single seamless plugin to make your WordPress site fast, lean and efficient.

WP-Optimize Cache Premium

Our free version of WP-Optimize Cache is great, but we also have an even more powerful Premium version with extra features that offer the ultimate in freedom and flexibility:

  • Multisite Support: extends database optimisations so they function for multiple WordPress sites at a time. If you manage more than one website, you will need WP-Optimize Cache Premium.
  • Flexibility and Control: gives you the power to optimize select individual tables or a particular combination of tables on one or more WordPress websites, rather than having to optimize all database tables.
  • Deleting unused and unwanted images: removes orphaned images from your WordPress site, plus images of a certain, pre-defined size.
  • Sophisticated Scheduling: offers a wide range of options for scheduling automatic optimization. Specify an exact time and run clean-ups daily, weekly, fortnightly or monthly and perform any number of additional once off optimizations.
  • Seamless Graphical User Interface: for superb clarity in scheduling and managing of multi-site optimizations.
  • WP-CLI support: provides a way to manage optimizations from command-line interface if you have lots of sites
  • Lazy Loading: load only the images and part of a web-page when it is visible to the user so they can see something very quickly.
  • Optimization Preview: gives users the ability to preview, select and remove data and records available for optimization from the database.
  • Preload key requests: preload assets such as web fonts and icon fonts, as recommended by Google PageSpeed Insights.
  • Premium support - caching is one of the most complex things you can do for a website, so premium support offers you peace of mind theres someone to talk quickly to if you need any technical answers or help configuring the optimizations of cache settings for your website.


Translators are welcome to contribute to the plugin. Please use the WordPress translation website.

Releases (65 )

Version Release Date Change Log
3.2.10 2022-12-12
  • 28/Nov/2022 =

  • FIX: Prevent php warning and increase SendInBlue mailin plugin compatibility

  • FIX: Avoid screen juggling while selecting optimizations from dropdown in scheduled clean up

  • FIX: Prevent cache purge upon deactivation using filter

  • FIX: Cache purge ability of all registered user

  • FIX: Recognise WooCommerce product category images as used images

  • FIX: Multisite support in cached-file-log.php template

  • TWEAK: Improve Optimization Schedule UI

  • TWEAK: Consolidated error notices by the use of a global WPO notice object.

  • TWEAK: Remove Reset WebP serving method button when there are no webp conversion tools

  • TWEAK: Remove query strings from scripts

  • TWEAK: Add Restrict Content Pro plugin slug to plugin.json

  • TWEAK: Add option to remove orphaned user meta data upon run optimization

  • TWEAK: Add no-cache headers when minify is enabled and page cacheing is not

  • TWEAK: Ability to remove .htaccess rules when gzip compression is not available

  • TWEAK: WebP: Avoid PHP warnings when using hot linked images (Alter HTML method)

  • TWEAK: WebP conversion is unavailable when php shell functions do not exist

  • TWEAK: Improved UI settings for asynchronous loading and page speed testing exclusion tools

  • TWEAK: Add a constant to enable/disable webp feature

  • TWEAK: Set a global context for $wp_file_descriptions context so that it gets assigned to correctly, preventing a subtle visual change in the theme editor

  • TWEAK: Prevent php warning from webp-convert library

  • TWEAK: Update currently-active installs number in thank you for installing notice.

  • TWEAK: Replaced deprecated use of jQuery.change()

3.2.9 2022-10-11
  • 05/Oct/2022 =

  • FEATURE: Import and export settings

  • FIX: Avoid infinite loop while using unused images export csv

  • FIX: Scheduled cache preloading issue

  • FIX: WebP testing making unnecessary background HTTP checks

  • FIX: Google fonts compatibility with The7 theme

  • FIX: Prevent console error for undefined wp_optimize for smush scripts

  • TWEAK: Avoid PHP warnings on cache cleanup

  • FIX: Ability to disable webp serving while caching is on

  • TWEAK: Reset webp conversion method flags daily using cron job

  • TWEAK: Remove orphaned wpo_weekly_cron_tasks cron job upon uninstallation

3.2.7 2022-08-22
  • 15/Aug/2022 =

  • FEATURE: A CLI command for generating lists of unused images as a CSV file (Premium)

  • FIX: The unused images CSV downloads have a few redundant images listed

  • FIX: ACF block field images are listed as unused images

  • FIX: Correctly recognize inherit in google fonts async loading

  • FIX: Cache - Do not purge when wp_update_nav_menu is removed from wpo_purge_cache_hooks array

  • TWEAK: Prevent PHP warnings when using json_decode result

  • TWEAK: Create cache config file if not present because of site migration

  • TWEAK: Update notice class

  • TWEAK: Recognize WooCommerce scheduled sales and cache accordingly

  • TWEAK: Prevent duplicate wp-optimize entry in tables optimization list

  • TWEAK: Test htaccess capability only when needed by webp feature

  • TWEAK: Increase compatibility with Aelia plugins

3.2.6 2022-06-20
  • 15/Jun/2022 =

  • FIX: Incorrect static method calling causes parse Error in PHP 5.6.36

  • FIX: WebP - Trailing slash file creation issue in PHP 8

  • FIX: PHP warning in cache rules file

  • FIX: Asynchronous google fonts loaded twice

  • TWEAK: Conditional Tags anchor tag fix

3.2.5 2022-06-03
  • 03/Jun/2022 =

  • FIX: Fix a fatal error that could occur in 3.2.4 if settings had not been saved

3.2.3 2022-03-14
  • 09/Mar/2022 =

  • FEATURE: Minify: Pre-generate assets

  • FIX: Cache - 'Purge cache permissions' setting does not allow additional roles to access the purge cache tool

  • TWEAK: Make smush details button work in media modal window

  • TWEAK: Do not show overhead in red when the amount is small

  • TWEAK: Avoid PHP Notices caused by "upgrader_process_complete" action

3.2.2 2022-01-25
  • 24/Jan/2022 =

  • FEATURE: Cache - Allow debugging of which cache file is chosen

  • FEATURE: Premium - Cache - Serve cached content for logged in users, per role

  • FIX: Premium - Unused Images - Fixed trashed images listing

  • FIX: Image selction issue in compressed and unused image is fixed.

  • FIX: ACF plugin compatibility issue with select2 JS library

  • FIX: Premium - Unused Images - Multibyte characters in filename are not recognised correctly

  • FIX: Table optimization displays wrong information about WP All Import plugin tables

  • FIX: Potential PHP fatal error - Call to undefined function wp_get_currentuser()

  • FIX: Minify - correctly minify multiple calc function in single property value

  • FIX: SQL error when keeping post revisions and optimizing

  • FIX: Cache - Prevent caching WordPress critical error page

  • FIX: Minify - Google fonts merging issue when the same font is enqueued in both API V1 and V2

  • FIX: Minify - Make inherit and inline settings work with Google fonts

  • FIX: Database error upon plugin activation

  • TWEAK: Minify - Show a notice if other minification plugins are installed and active

  • TWEAK: Remove unused bundled JavaScript from minify library to avoid irrelevant scan results

  • TWEAK: Image compression - Image compression stats include gains on image sizes

  • TWEAK: Make sure that messages from WP_Error objects in gzip compression are displayed to users.

  • TWEAK: Prevent PHP notice from WooCommerce deprecation

  • TWEAK: Create task tables upon activation, if needed.

  • TWEAK: Show error instead of success when table doesn't exist

  • TWEAK: Update seasonal notices

  • TWEAK: Prevent PHP fatal error in media list view, when images are makred as compressed

  • TWEAK: Image edit window - Link does not go to image settings and more/less link not working

3.2.1 2022-01-05
  • 29/Nov/2021 =

  • FIX: Apply different image compression levels

  • FIX: Cache - Purge WooCommerce product page after stock update

  • FIX: Database errors after adding a new site

  • FIX: Flatsome theme compatibility with google fonts

  • FIX: Image compression advanced settings, display default backup days instead of empty value.

  • FIX: Image compression was not working when the image extension used capital letters

  • FIX: Premium - Cache - Potential PHP error in User-specific cache

  • FIX: Premium - resolve potential admin-area PHP error if the deprecated mailchimp sync plugin and MC4WP plugin are both active (and potentially other situations where a plugin deactivates another)

  • FIX: Premium - Unused images - compatibility with PHP 8

  • FIX: Premium - Unused images - issue with parenthesis in name

  • FIX: Premium - Unused images - Pagination count doesn't update

  • FIX: Prevent a PHP notice when using with UpdraftCentral

  • FIX: Save prioritize maximum compression setting correctly

  • FIX: Wrong redirect when wiping settings on multisite

  • TWEAK: Premium - add review link at bottom of settings

  • TWEAK: Force monolog/monolog and psr/log versions to retain PHP 5.X compatibility/satisfy wordpress.org SVN hooks

  • TWEAK: Add compatibility with Kinsta

  • TWEAK: Added functionality for to convert MyISAM to InnoDB

  • TWEAK: Add filters for minify input string

  • TWEAK: Cache - Added filter to modify cache exception urls

  • TWEAK: Cache - Optimize preload from sitemap

  • TWEAK: Cache - Serve different versions based on cookie consent

  • TWEAK: changed filter to prevent deprecation notice in php 8.1+

  • TWEAK: Decide automatically whether to inline css or not based on file size

  • TWEAK: Fix typo in text domain name

  • TWEAK: get_hurl function minified.

  • TWEAK: Improve clarity of debug message when DONOTCACHEPAGE constant is used

  • TWEAK: Improve DB UI/UX on multisite

  • TWEAK: Improve minify cache size messages

  • TWEAK: Making Estatik plugin compatible

  • TWEAK: Minify - Add JS translations support

  • TWEAK: Minify HTML only on cache pre-loading

  • TWEAK: Port from previous semaphore classes to Updraft_Semaphore_3_0

  • TWEAK: Premium - Unused images - Show that there are images in the trash without having to re-scan everything

  • TWEAK: Prevent a PHP notice when downloding image compression log file. Fix backup modal styling issue.

  • TWEAK: Prevent fatal error in gzip settings when stylesheet could not be fetched

  • TWEAK: Short-circuit trivial case of nothing in the buffer when page-cacheing, to involve any possible other issues

  • TWEAK: Update comments count after trackbacks and pingbacks deletion

  • TWEAK: Update minified asset when the enqueued scripts and styles version change

  • TWEAK: Use proper constant of includes path in user cache extension

3.1.12 2021-07-28
  • 12/Jul/2021 =

  • FEATURE: Ability to defer js files and asynchronously load css files

  • FEATURE: Option to not aggregate inline styles and scripts

  • FIX: Always purge this cache HTML issue

  • FIX: Cache - Enable cache for subfolders and multisite installation with the permalink structure example.com/index.php/a-post-name

  • FIX: PHP 8 Issue: Minify and Merge Error

  • FIX: Silent failure of page caching if plugin location not found

  • TWEAK: Added Update URI header field to avoid accidentally being overwritten with an update of a plugin of a similar name from the WordPress.org Plugin Directory.

  • TWEAK: Delay displaying notices for 2 weeks

  • TWEAK: Improve label of when saving a media type in always purge this

  • TWEAK: Improve query for EWWW IO history

  • TWEAK: Prevent a PHP notice if using WP-Optimize and MetaSlider on the same site.

  • TWEAK: Prevent PHP warnings from theme update and google font minify

  • TWEAK: Skip HTML minification if the total size is > 1MB (takes too long to be worthwhile)

  • TWEAK: Updating custom compression slider values

3.1.11 2021-06-30
  • 08/Jun/2021 =

  • FIX: Cache - Don't cache pages for logged-in users when 'Serve cached pages to logged in users' option (new in 3.1.10) is enabled

3.1.10 2021-06-07
  • 26/May/2021 =

  • FEATURE: Premium - Cache - User-specific cache. Useful for subscription websites, and websites where tailored content is offered to logged-in users.

  • FEATURE: Page cache now also caches RSS feeds

  • FEATURE: Ability to exclude files from minify process

  • TWEAK: Prevent PHP warning when deactivating Minify and the cache folder does not exist anymore

  • TWEAK: Premium - Lazy-load - Possibility to disable Lazy load on specific pages

  • TWEAK: Do not enqueue deleted script

  • FIX: Minify - Some pattern CSS import statements broke site

  • FIX: Minify - Events triggering

  • FIX: Google Fonts regression in 3.1.9

3.1.9 2021-04-29
  • 29/Apr/2021 =

  • FEATURE: Power Tweak - Change meta_key field length and create new index

  • FEATURE: Premium - Automatic Backups using UpdraftPlus during scheduled optimizations

  • FEATURE: Keep last X revisions

  • FIX: Overlapping header notice in mobile view

  • FIX: Cache - Wildcard not working in cache exclusions

  • FIX: Prevent error in htaccess when mod_header isn't available

  • FIX: PHP Fatal error on deleting plugin

  • FIX: PHP 8 Issue: loadAsync JS error

  • FIX: RankMath breaks robots.txt

  • TWEAK: Bypass minify when editing translations using TranslatePress

  • TWEAK: Purge minify cache from front end

  • TWEAK: Minify - Prevent cache directory creation while disabled

  • TWEAK: Add Google Fonts API version 2 support

  • TWEAK: Minify - Save all tab content settings changes with single Click

  • TWEAK: Improved optimization preview

  • TWEAK: Filter the list of preloaded URLs

  • TWEAK: Update seasonal notices

  • TWEAK: Bump WP version requirement to 4.5+

3.1.8 2021-03-12
  • 12/Mar/2021 =

  • FIX: Cache - Warning failed to open dir

  • FIX: Premium - Unused images - Fixed issue with images including a size suffix similar to WP sizes

  • FIX: Display optimization data based on retention period

  • FIX: Scheduled cleanup settings - Invalid date selection

  • TWEAK: Premium - Separate table optimisations per sub-site

  • TWEAK: Premium - Unused images - Add compatibilty with the Envira Gallery plugin

  • TWEAK: Page caching: add support for Avada

  • TWEAK: Add visual clue when image compression was cancelled

  • TWEAK: Image compression - multi image selection using Ctrl/Shift keys

  • TWEAK: Premium - Unused images - Reset last clicked image reference when select none is clicked

  • TWEAK: Prevent bots from indexing plugins list json file

  • TWEAK: Minify - Added a setting to change the time stale cache should be kept

  • TWEAK: Better support for Beaver Builder

  • TWEAK: Prevent PHP warning when reading a file's size

  • TWEAK: Cache - Purge the blog page when updating a post

  • TWEAK: Cache - Purge next and previous posts on post update

  • TWEAK: Cache - Purge sitemap files on post update

3.1.7 2021-02-12
  • 12/Feb/2021 =

  • FEATURE: Premium - Preload key requests (Preload fonts and other assets)

  • FIX: Detecting Brotli compression issue

  • FIX: Cache - PHP Warning in URLs to exclude from caching

  • FIX: Premium - Unused images - Unused Images Tool not recognising Greek characters

  • FIX: Button for disabling Gzip doesn't showing

  • TWEAK: Database optimization - Prevent fatal error due files missing

  • TWEAK: Skip minify when SCRIPT_DEBUG is set to true

  • TWEAK: Fixed Font-awesome settings

  • TWEAK: Add support for different spellings of "Font-awesome"

  • TWEAK: Update the feature comparison table

  • TWEAK: Added the option to not show the warning before deleting a table

  • TWEAK: Wipe all options upon plugin de-installation

  • TWEAK: Premium - Lazy-load - Lazy load support for background images

  • TWEAK: Minify - Add file size in the minify cache summary

  • TWEAK: Detect conflicting plugins for GZIP issue

  • TWEAK: Database optimization - Include all tables if database prefix is not set on WP install

  • TWEAK: Premium - Unused images - added "X of X images loaded" for unused trash images

  • TWEAK: Don't allow to remove actionscheduler_* tables

  • TWEAK: Premium - Unused images - Show a progression screen when doing any action with unused images

  • TWEAK: Cache - Enable cache for the old default permalink structure domain.com/index.php/a-post-name by creating a folder without the extention

  • TWEAK: Show previous action as message on Trackbacks or Comments enable or disable.

  • TWEAK: Prevent deprecation notice on PHP 8.0

  • TWEAK: Update notices

3.1.6 2020-12-18
  • 17/Dec/2020 =

  • FIX: Fix wrong class name

3.1.5 2020-12-18
  • 17/Dec/2020 =

  • FEATURE: Introduction of Power tweaks (premium feature)

  • FEATURE: Power tweak - replace WooCommerce "Get total spent" query by a faster one

  • FIX: CloudFlare not detected on gzip and browser caching tabs

  • FIX: Cloudflare caching issue

  • FIX: Premium - Unused images - Download CSV warning

  • FIX: PHP 8 compatibility issue WP_Optimize_Browser_Cache->prepare_interval()

  • TWEAK: Upgrade jQuery code to deal with deprecations with the latest bundled version

  • TWEAK: Fix wrong usage of wp_localize_script to prevent warnings in PHP 8

  • TWEAK: Premium - Unused images - Update the data when moving images to the trash / deleting instead of doing a hard refresh

  • TWEAK: Change how default exclusions are handled

  • TWEAK: Now that PHP 8.0 has been released, bump minimum PHP version requirement from PHP 5.4 to 5.6.

  • TWEAK: Delete WP-O's .htaccess rules at deactivation

  • TWEAK: Premium - Unused images - Separate unused images and unused image sizes processes

  • TWEAK: Update jQuery document ready style to the one not deprecated in jQuery 3.0

  • TWEAK: Minify CSS - Possibility to toggle the google fonts display=swap parameter from the UI.

  • TWEAK: Fix small UI issues

  • TWEAK: Clean up all cron events when deactivating the plugin

  • TWEAK: Premium - Possibility to set permissions for purging page cache and minify files.

  • TWEAK: Bypass minify when editing a post using the Brizy editor

  • TWEAK: Renamed UpdraftCentral's command classes filter

  • TWEAK: Bump WP version requirement to 4.4+, and PHP version requirement to 5.4+

  • TWEAK: Purge caches when updating a plugin / theme (also when updating using a ZIP archive)

  • TWEAK: Improve the admin bar "cache" menu

  • TWEAK: Show information about Cloudflare support

  • TWEAK: Database optimization - Resume optimizing when a timeout occurs

  • TWEAK: Remove redundant code

  • TWEAK: Cache feature - Do not cache pages with fatal errors

  • TWEAK: Cache feature - Do not cache RSS feeds

  • TWEAK: Page cacheing - Prevent adding the "comment cookie" when ordering on WooCommerce

3.1.4 2020-09-15
  • 15/Sep/2020 =

  • FIX: Prevent fatal error when updating

3.1.2 2020-06-03
  • 03/Jun/2020 =

  • TWEAK: Only load minify dependencies when the feature is enabled, reducing the risk of conflicts with plugins with obsolete/incompatible library versions

3.1.1 2020-06-03
  • 03/Jun/2020 =

  • FIX: Minify - Make the feature unavailable when W3 Total Cache is active (an ancient version of the library in that plugin is incompatible and can cause a crash if either plugin attempts to perform minification)

  • TWEAK: Tweak polling interval for fetching WP-O minify cache information

3.1.0 2020-06-02
  • 02/Jun/2020 =

  • FEATURE: Major new feature: JS and CSS combination and minification. Read more at: https://getwpo.com/faqs/category/minification/

  • FIX: Image compression - delete backup images in a non-dated folders

  • FIX: Premium - Unused images - Only move relevant images to trash

  • FIX: Cache feature - Show correct preloading status

  • FIX: Fixed optimizations preview on multisite

  • FIX: Cache feature - Fixed error handling for cache preload action

  • FIX: Call to unavailable function was breaking page cacheing on old WP versions without add_filter() available early

  • TWEAK: Premium - Do not show the loading overlay on the database screen when loading the unused images list

  • TWEAK: Periodically update the plugins' tables list (plugin.json)

  • TWEAK: Do not use wp_get_upload_dir() on WP versions before it is available

  • TWEAK: Prevent JavaScript error when showing a notice after purging the cache

  • TWEAK: Cache feature - Better handle errors when enabling or disabling caching

  • TWEAK: Cache feature - Use HTTP headers to indicate page caching status

  • TWEAK: Premium - Unused images - Added filter wpo_unused_images_ids

  • TWEAK: Cache feature - Prevent purging the whole cache when saving a WooCommerce product

  • TWEAK: Premium - Page cache - "Do not cache this post" setting to only be effective when viewing a single post or page.

  • TWEAK: Cache feature - Added the filter wpo_cache_preload_sitemap_filename to enable overriding of the sitemap name used for preloading

  • TWEAK: Make all tooltips accessible via keyboard navigation

  • TWEAK: scandir() usages changed to opendir()

  • TWEAK: Database optimizations - Add Gravityforms to list and tweak UI

  • TWEAK: Cache feature - Preload indicates when using a sitemap

  • TWEAK: Hide the "remember to save settings" notice after saving.

  • TWEAK: Updater in paid version now will make checks on availability without needing login

3.0.19 2020-03-31
  • 31/Mar/2020 =

  • FIX: Fix force tables optimisations checkboxes

  • FIX: Fix tablesorter issue preventing the optimisations from displaying

  • FIX: Premium - Fix Spam and Trashed Comments preview

3.0.18 2020-03-27
  • 27/Mar/2020 =

  • FIX: Don't override advanced-cache.php if caching is disabled

3.0.16 2020-03-03
  • 27/Jan/2020 =

  • FIX: Premium - Unused images - Fixed detection of -rotated and -scaled images

  • TWEAK: Cache feature - Cache sitemap.xml and robots.txt

  • TWEAK: Cache feature: fix scheduled preload

  • TWEAK: Cache feature: save the value of wpo_current_url() to enhance compatibility with Weglot

  • TWEAK: Fix permissions for restoring or compressing images on multisite

  • TWEAK: Premium - Tweak UI when fetching unused image infos

  • TWEAK: Premium - Added compatibility for Oxygen builder

  • TWEAK: Premium - Added WP-CLI commands for managing cache

3.0.15 2019-12-18
  • 16/Dec/2019 =

  • FIX: Image compression - Fix restoration on multisite

  • FIX: Cache feature - Scheduled preload when a sitemap does not exists

  • TWEAK: Check for headers_sent() before closing the browser connection

  • TWEAK: Cache feature - Do not show clear cache buttons in the admin bar if the user doesn't have the right capability

  • TWEAK: Cache feature - Don't cache REST API requests

  • TWEAK: Tabs to point to the correct URL for direct access

  • TWEAK: Only log the reason why an URL isn't cached if the constant WPO_CACHE_DEBUG is true

  • TWEAK: Image compression - Added a new filter 'wpo_image_compression_single_image_options' to allow changing the image quality for each image.

  • TWEAK: Cache feature - Added instructions how to edit advanced-cache.php file

  • TWEAK: Detecting Cloudflare and Brotli compression before enabling GZIP

3.0.14 2019-11-28
  • 25/Nov/2019 =

  • FIX: Fixed default option values for smush backup automatic deletion

  • FIX: Prevent potential Fatal error when including notices class

  • FIX: Image compression - Fixed division by zero notification

  • FIX: Fix list of backup entities before removing unused images

  • TWEAK: PHP 7.4 compatibility tweak in the fatal error handler

  • TWEAK: Image compression feature - Backup of original image paths are now relative

  • TWEAK: Page cache - Fix condition when displaying the message indicating the reason for not caching or serving cache

  • TWEAK: Page cache - Do not save post to cache if comments are opened and the user has saved their information

  • TWEAK: Page cache - intelligently handle Google Analytics tracking parameters in URL (Premium)

  • TWEAK: Page cache - add a query parameter to force display of the reason for not caching a page or serving a cached page

  • TWEAK: Cache feature - Added is_writable() checking before trying to write advanced-cache.php

  • TWEAK: Premium - Optimize database optimisations for WP-CLI commands

  • TWEAK: Premium - Don't run UI requests for WP-CLI actions

  • TWEAK: Premium - Page cache - Add default WooCommerce currency to the cache config

  • TWEAK: Page cache - Add the possibility to save default values to the cache config

  • TWEAK: Page cache - Add a possible secondary cache extensions location using the constant 'WPO_CACHE_CUSTOM_EXT_DIR', to allow keeping the bundled extensions in their original location

  • TWEAK: UI tweaks

  • TWEAK: Add missing filename reference in error message

  • TWEAK: Page cache - Purge cache when Autoptimize's cache is cleared

  • TWEAK: Image compression - Compatibility with Elementor plugin

  • TWEAK: Image compression - Added feature to mark all images as uncompressed

  • TWEAK: Bump supported minimum WP version up to 3.9

3.0.13 2019-10-23
  • 21/Oct/2019 =

  • FIX: Don't show VIEWs as corrupted database tables

  • TWEAK: Image compression - Cancel button now stops the compression process

  • TWEAK: Only show general notice when update notice isn't shown

  • TWEAK: Improve message when Gzip compression is already enabled

  • TWEAK: Premium - Use path to include lazy load script

  • TWEAK: Image compression - Use wp_remote_get() instead file_get_contents() for retrieving compressed images

  • TWEAK: Use wp_remote_get() instead file_get_contents() for retrieving compressed images

  • TWEAK: Cache feature - add a 'Purge all' cache button to the admin bar

  • TWEAK: Premium - Prevent php warning in scheduled optimisations list

  • TWEAK: Premium - Unused images feature - Add compatibility with Advanced Custom Fields (ACF) image and gallery fields

3.0.12 2019-10-17
  • 24/Sep/2019 =

  • TWEAK: Cache - Purge cache files when updating menu, saving the customizer and editing widgets

  • TWEAK: Cache - Do not show the reason for not caching when the request is DOING_CRON

  • TWEAK: Premium - Unused images feature - Improved detection on sites with many posts/images

  • TWEAK: Automatically delete smush image backups option

  • TWEAK: Premium - Unused images feature - Better detection of featured images

  • TWEAK: Cache - Ability to purge single page or post from cache

  • TWEAK: Cache - Display the content of advanced-cache.php to the user if it was not writable when enabling cache

  • TWEAK: Image compression - Automatically delete image backups option

  • TWEAK: Image compression - metabox now inherits the settings from the main screen

  • TWEAK: Image compression - Added feature to mark images as already compressed by another tool

  • TWEAK: Image compression - Added detailed log information when image compression fails.

  • TWEAK: Premium - Unused images feature - Improved detection on sites with many posts/images

  • TWEAK: Premium - Unused images feature - Better detection of featured images

  • TWEAK: Premium - Lazy load - Added WooCommerce support

  • TWEAK: Premium - Increased warning level and visibility when deleting unused database tables and unused images

  • TWEAK: Prevent a couple of unwanted PHP notices being logged when running cron via the command-line

  • TWEAK: Tweaked update notice wording

3.0.11 2019-08-08
  • 07/Aug/2019 =

  • FIX: Check the results of opendir() when emptying the cache, to prevent a possible infinite loop if it fails

  • FIX: Compatibility issues with WordPress 4.0

  • FIX: Replace function that did not exist on PHP 5.2

  • TWEAK: Add work-around for plugins which call the WP action comment_post incorrectly

  • TWEAK: Change the algorithm for locating file-based-page-cache.php to handle same-server site moves better

  • TWEAK: Prevent an unwanted PHP notice caused by Action Scheduler purges

3.0.10 2019-07-30
  • 30/Jul/2019 =

  • TWEAK: If short-circuiting the attachment_fields_to_edit filter result, return the pre-existing value

  • TWEAK: Adjust wpo_delete_files() and related functions with extra sanity checks

3.0.9 2019-07-30
  • 30/Jul/2019 =

  • FIX: Fix bug in logic for sending "Content-Encoding: gzip" header that could cause it to be sent prematurely with non-cached pages

3.0.8 2019-07-30
  • 30/Jul/2019 =

  • FIX: Lazy-loading regression in recent Premium release

  • FIX: Smush images selection on multisite

  • FIX: Displaying WP-Optimize tabs menu on mobile devices

  • TWEAK: Disable redundant lazy-loading feature when Divi theme is active

  • TWEAK: Improve accuracy of message shown when it is not possible to automatically enable Gzip compression of static resources

  • TWEAK: Only output reasons a page was not cached if the wp_footer action was run

3.0.7 2019-07-25
  • 25/Jul/2019 =

  • FIX: Fix some logic bugs related to the decision whether to send gzip-encoded cached content

  • FEATURE: To aid debugging if WP_DEBUG is turned on then if a page was not cached, then the HTML source will now contain the reason(s) why not in the footer

  • TWEAK: The is_user_logged_in() function is not necessarily available during a WP 'technical difficulties' scenario

3.0.5 2019-07-23
  • 23/Jul/2019 =

  • FIX: Short-circuit Updraft_Smush_Manager::add_compress_button_to_media_modal() outside of a dashboard context, so that plugins or themes that hook into some dashboard hooks outside of that context can't cause fatal errors

  • TWEAK: Added suffixes with WP-Optimize version number to js, css files

  • TWEAK: Change the method used to generate the configuration file path in advanced-cache.php; no issues were reported, but analysis indicated a potential way to generate a path that would not agree with what was written by saving settings; and also another way to generate an invalid path on Windows webservers running on non-standard ports.

  • TWEAK: Use WPO_CACHE_CONFIG_DIR constant instead string value in advanced-cache.php

3.0.4 2019-07-22
  • 20/Jul/2019 =

  • FIX: Fixed a regression in 3.0 with orphaned relationship data optimization

3.0.3 2019-07-20
  • 20/Jul/2019 =

  • TWEAK: Prevent saving of page cache settings when the page cache was already off and another page cache plugin was active from over-writing the other plugin's advanced-cache.php

3.0.2 2019-07-19
  • 19/Jul/2019 =

  • TWEAK: Rename in order to cache-bust sites that cached old versions of the JS admin scripts

  • TWEAK: Prevent unwanted PHP notice if saving page cache settings without ever having turned the cache on

3.0.0 2019-07-18
  • 17/Jul/2019 =

  • FEATURE: Adds a caching feature, with page cache, browser cache control and gzip control

  • TWEAK: Smush feature added to medial modal

  • TWEAK: Remove references to Keyy

  • TWEAK: Image compression metabox tweaks

  • TWEAK: Preload after purging, If preload schedule is enabled

  • TWEAK: Prevent image compression AJAX call from firing upon every tab change

  • TWEAK: Load assets in admin_enqueue_scripts()

  • TWEAK: Smush all image sizes

  • TWEAK: Add quick feedback link

  • TWEAK: Delete the original backup file when an attachment file has been deleted

  • TWEAK: Remove die() from shutdown handler

  • TWEAK: Remove references to Keyy

3.0.1 2019-07-18
  • 17/Jul/2019 =

  • FIX: Prevent a potential stray line of text appearing

2.3.4 2019-06-11
  • 10/Jun/2019 =

  • FIX: Incorrect file paths on multisites

  • FIX: Wrong DB Schema caused image compression to fail on multisites

  • TWEAK: Improve image compression UI

  • TWEAK: Add the possibility to hide the image optimisation metabox in the media edit screen.

  • TWEAK: Fix potential PHP notice in task queue when Automatic Smush is activated

  • TWEAK: Improve JSON-reparser to cope with even more exotic junk from some setups with problems elsewhere in their stack

  • TWEAK: Remove the numerical index column from the list of tables

  • TWEAK: Prevent methods being called when create_task returns false

  • TWEAK: Prevent PHP log warnings when images are missing from server (log in WP-O internal log instead)

  • TWEAK: Changed the default settings page from 'Settings' to 'Database'

  • TWEAK: Better discoverability of Premium features

  • TWEAK: Use new task manager class Updraft_Task_Manager_1_1

2.3.3 2019-04-29
  • 17/Apr/2019 =

  • FIX: Revert faulty change to the default settings page in 2.3.2, which prevented optimization buttons working

2.3.2 2019-04-18
  • 17/Apr/2019 =

  • FIX: Non-ASCII filenames could get mangled in the image optimization preview, resulting in images not shown (and WP 404 generation on the back-end).

  • FIX: Optimizing a table now runs correctly after automatic pre-optimize backup

  • TWEAK: Changed the default settings page from 'Settings' to 'Database'

2.3.1 2019-04-16
  • 16/Apr/2019 =

  • FIX: Fix a code path that could cause a fatal error on PHP 5.2

  • TWEAK: Optimizing a table should then refresh the information in the UI shown for it

  • TWEAK: Use an image compression logfile path inside the uploads hierarchy, with unpredictable salted element

2.3.0 2019-04-12
  • 12/Apr/2019 =

  • FEATURE: Compress images using lossy and lossless compression - both existing images, and newly uploaded

  • FIX: Wrong information about corrupted tables

  • TWEAK: Prevent PHP notices on calls from UpdraftCentral

  • TWEAK: Prevent notices about Premium showing in Premium, correct button text, update coupon

  • TWEAK: Prevent the overdue cron checker running twice instead of once

2.2.13 2019-03-11
  • 04/Mar/2019 =

  • FIX: Fixed RTL layout

  • FIX: Detect more relationships between tables and plugins in orphaned database tables optimization

  • FIX: Fixed orphaned relationships optimization

  • TWEAK: The informational list of WP core tables missed some possible extra tables on multisite

2.2.12 2019-02-15
  • 07/Feb/2019 =

  • TWEAK: Updated information on More plugins tab

  • TWEAK: Fix header layout when a system or third party notification are shown

  • TWEAK: (Premium) Fix layout in unused images list mode

  • TWEAK: Improve data reliability in javascript

  • TWEAK: Improve orphaned relationships data optimization

  • TWEAK: Wrong message for "remove spam and trashed comments" optimization

  • TWEAK: Output additional information if table was not deleted

  • FIX: Added escaping for table names in database queries

  • FIX: Fix another possible fatal error due to missing get_plugins() function

  • FIX: Improve identification of installed/active plugins

2.2.11 2019-01-16
  • 16/Jan/2019 =

  • FIX: A regression in the "identify table by owner" feature caused optimizing to silently fail on some tables

  • TWEAK: Added ability to exclude lazy load images by class

2.2.10 2019-01-11
  • 11/Jan/2019 =

  • FEATURE: Added the ability to download unused images list (Premium version) as a CSV file

  • FIX: Load scripts and styles only on WP-Optimize pages

  • FIX: Fix a possible fatal error due to missing get_plugins() function

  • TWEAK: Remember selected optimizations on Database page

  • TWEAK: Prevent PHP notices when saving settings or optimizing in some circumstances

2.2.9 2019-01-03
  • 03/Jan/2019 =

  • FIX: Change a newly-introduced fragment that was not compatible with PHP 5.2

  • TWEAK: Tweak some other code that had PHP 5.2 compatibility issues

2.2.8 2019-01-03
  • 03/Jan/2019 =

  • FIX: Change a newly-introduced fragment that was not compatible with PHP 5.2

2.2.6 2018-10-30
  • 30/October/2018 =

  • TWEAK: Mark as supporting WordPress 5.0

  • TWEAK: Update seasonal notices

2.2.4 2018-05-07
  • 07/May/2018 =

  • TWEAK: Changed the term 'Automatic' to 'Scheduled'.

  • TWEAK: Show correct table type for views

  • TWEAK: Fixed string spelling and syntax errors

  • TWEAK: Disabled Simple History logging option if plugin is not installed.

  • TWEAK: Prevented PHP notices in repair tables functionality

2.2.3 2018-04-05
  • 04/Apr/2018 =

  • FEATURE: Added the ability to repair corrupted database tables

  • FIX: Fixed dismiss notices functionality

  • FIX: When detecting potentially unused images, exclude those found mentionned in the options table(s)

  • TWEAK: Load WPO translations (logger classes info included) when template is pulled for UpdraftCentral-WPO module

  • TWEAK: Add get_js_translation command for the UpdraftCentral WPO module

  • TWEAK: Added logging for fatal errors

2.2.2 2018-02-28
  • 28/Feb/2018 =

  • TWEAK: Prevent possible PHP notice when parsing logger options

2.2.1 2018-02-28
  • 28/Feb/2018 =

  • FIX: Fix number counting in Table information tab

  • FIX: Fix InnoDB optimization UI

  • TWEAK: Removed orphaned attachment optimization from optimizations UI list

2.2.0 2018-02-20
  • 19/Feb/2018 =

  • FEATURE: Added the ability to export/import WP-Optimize settings

  • FEATURE: Extended the logging class to include logging for Simple History Logger, Slack, Email, syslog and a simple 'ring' log

  • FEATURE: Added the ability to optimize ARCHIVE and Aria (MariaDB) database tables.

  • FEATURE: Added the ability to sort data in the "Table Information" tab

  • FEATURE: Added the ability to search tables in "Table Information" tab

  • FEATURE: Added the ability to optimize an individual table. (Premium)

  • FEATURE: Added the ability to optimize multisites. (Premium)

  • FEATURE: Allow the user to create arbitrarily complex automatic optimization schedules (Premium)

  • FEATURE: Added ability to use WP CLI interface for run optimizations. (Premium)

  • FIX: Auto clean-up settings not optimizing database tables

  • FIX: Comments count after related to comments optimization

  • FIX: Fix unapproved comments count

  • TWEAK: Add functions to pull WP-Optimize templates for UpdraftCentral

  • TWEAK: Allow user to tick the "Take a backup with UpdraftPlus before optimizing" option from UpdraftCentral

  • TWEAK: Show last automatic optimization time using site's configured timezone and locale

  • TWEAK: Extra MySQL and MariaDB checks for optimization, along with an over-ride functionality.

  • TWEAK: updated previous optimizations and added optimizations for trash posts, trash comments and orphaned attachements

  • TWEAK: Use higher-quality spinner image

  • TWEAK: Adjusted notices about other products

  • TWEAK: Added message for multisite users with proposal to upgrade to Premium.

  • TWEAK: Optimize the check for whether both free and Premium are installed

  • TWEAK: Added Premium / Plugin Family tab

  • TWEAK: Added seasonal dashboard notices

2.1.1 2017-11-03
  • 28/Feb/2017 =

  • FEATURE: Added the ability to take a automatic backup with UpdraftPlus (https://updraftplus.com) before an optimization

  • FEATURE: When optimizing from the dashboard, tables are now optimized one by one, to reduce the scope for timeouts

  • FIX: Removal of sitemeta items from main site on multisite install was not proceeding

  • TWEAK: Adding premium bootstrapping to WP-Optimize for adding premium features in the future

  • TWEAK: A few wording tweaks, plus automatically refresh the page if the 'admin bar menu' option is changed

  • TWEAK: Introduce internal logging API

2.1.0 2016-12-27
  • 28/Dec/2016 =

  • FOCUS: This release concentrates upon the user-interface, and in particular upon improving the clarity of each part, and making optimizations, saves and other actions possible without page reloads.

  • FEATURE: Any optimisation can now be run individually with a single button press

  • TWEAK: All optimisations run via the dashboard page are now run via AJAX (no page refresh)

  • TWEAK: Settings saving now takes place via AJAX (no page refresh)

  • TWEAK: Navigation between different tabs now takes place without a page refresh

  • TWEAK: The "trackback/comments" actions section now operates via AJAX (no page refresh needed)

  • TWEAK: "Refresh" button in the "Status" widget now refreshes via AJAX (no page refresh needed)

  • TWEAK: When saving settings or running an optimization, the "Status" widget now automatically refreshes

  • TWEAK: Make the admin bar menu into a drop-down, making it quicker to access individual tabs

  • TWEAK: Call set_time_limit to reduce the chances of PHP self-terminating via reaching max_execution_time

  • TWEAK: Introduce dashboard notice infrastructure

  • TWEAK: The lines showing information on how many spam/trashed posts and comments existed were incomplete

2.0.1 2016-12-12
  • 12/Dec/2016 =

  • OWNERSHIP: WP-Optimize is now under the leadership of Team UpdraftPlus - https://updraftplus.com. A big thank you to Ruhani (who remains on-board) for his leadership of WP-Optimize until this point! Layout, branding and links have been altered to reflect this change.

  • RE-FACTOR: Internal code completely re-factored, laying the foundations for future improvements

  • TWEAK: Various filters introduced internally for easier customisation

  • TWEAK: Marked form element labels, so that they can be clicked

  • TWEAK: Various small UI improvements (more to come in future releases)

  • FIX: Previous versions could potentially run OPTIMIZE commands on tables in the same MySQL database (if it was shared) belonging to other sites

  • FIX: Previous versions were not deleting most delete-able transients. This is now fixed, with the modification that we now delete all expired transients.

  • LANGUAGES: Removed language packs and screenshots that are already carried by wordpress.org, reducing the plugin download / install size

1.9.1 2016-12-06
  • Ability to clean up Unused Post Meta, Comment Meta and Broken Relationship Data
  • Warning prompts for RED marked items and optimize button
  • Better transient options cleaning.
  • Language files update.
  • Various other fixes
1.9 2016-06-12
  • 27 Weeks retention option equivalent to 6 month
  • Compatibility update.
  • Language files update.
  • Removed email notifications, it doesn't work on many servers
  • Various other fixes 2015-03-18
  • Security Patch - Update your plugin.
  • Security Patch provided by Dion at WordPress.org and Security report provided by http://planetzuda.com .
  • Language files update 2015-03-18
  • Security Patch - Update your plugin.
  • Security Patch provided by Dion at WordPress.org and Security report provided by http://planetzuda.com .
  • Language files update 2015-03-02
  • Daily Schedule Option Added
  • Email notification on automatic optimization, default email is admin email address. You can change this in settings 2014-09-08
  • BUGFIX for Settings screen
  • Enable/Disable trackbacks / comments buttons removal and use select box instead. Extra button caused the Auto Scheduler to get into reset mode.
0.7.0 2009-11-15