By David Anderson, Ruhani Rabin, Team Updraft

March 30, 2023

WP-Optimize – Cache, Clean, Compress. Plugin

Boost your site's speed and performance through caching. Clean the database, compress images and cache your site for higher speed & SEO.

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 world’s fastest caching engine. This simple, popular and highly effective tool has everything you need to keep your website fast and thoroughly optimized!

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 don’t. 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 won’t 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 site’s 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 it’s 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 they’re 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 there’s someone to talk quickly to if you need any technical answers or help configuring the optimizations of cache settings for your website.

Translations

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

Installation

There are 3 different ways to install WP-Optimize Cache, as with any other wordpress.org plugin.

Using the WordPress dashboard

Navigate to the ‘Add New’ in the plugins dashboard
Search for ‘WP-Optimize’
Click ‘Install Now’
Activate the plugin on the Plugin dashboard

Uploading in WordPress Dashboard

Download the latest version of this plugin from https://wordpress.org/plugins/wp-optimize/
Navigate to the ‘Add New’ in the plugins dashboard
Navigate to the ‘Upload’ area
Select the zip file (from step 1.) from your computer
Click ‘Install Now’
Activate the plugin in the Plugin dashboard

Using FTP

Download the latest version of this plugin from https://wordpress.org/plugins/wp-optimize/
Unzip the zip file, which will extract the wp-optimize directory to your computer
Upload the wp-optimize directory to the /wp-content/plugins/ directory in your web space
Activate the plugin in the Plugin dashboard

Screenshots

Cache - plugins comparison benchmark
Database optimization
UpdraftPlus running a backup before an optimization proceeds
Table Report
Image compression
Main cache screen

FAQ

Isn’t it better to use a dedicated caching plugin to cache my site?

We’ve built WP-Optimize Cache around the most advanced and powerful caching technology. Our caching tests and feedback from real-world users show that the caching feature alone can make your site faster than any other cache plugin or optimization. See these speed test results.

Is optimizing my database safe?

Yes; optimizing does not involve any “tricks” or poking around in dangerous ways. It involves running routine clean-up operations using well-defined, common MySQL commands. Nevertheless, we always recommend backups, which cover every possibility; not just database malfunctions, but hackers, human errors, etc. We recommend UpdraftPlus.

What savings can I expect to make?

This is a “how long is string?” sort of question. It depends completely on your site – how big it is, how many users interact on it, how long it has been running, and when you last optimised it. However, the savings and speed-ups can be substantial; it is always worth making sure that your database is optimised.

How do I get support?

In our support forum, here: https://wordpress.org/support/plugin/wp-optimize/

How do I use WP-Optimize Database Cleaning?

WP-Optimize does not make large savings on my database

This is rare; it’s probably because you’re with a shared web hosting company that doesn’t allow scripts to run an optimize command via SQL statements (SQL “OPTIMIZE” instruction). Please consult your web hosting company on this matter.

Is the plugin tried and tested?

Yes – WP-Optimize Cache is WordPress’s #1 most-installed optimisation plugin, with over 800,000 users and a pedigree going back over 8 years.

Does WP-Optimize support InnoDB tables?

WP-Optimize will disable some features if it detects InnoDB tables. Optimization of the database tables on-disk is not available, but other clean up features would work.

Can you help me restore my database?

Not unless you have an existing backup. Please ensure that you make a backup of your entire database before using WP-Optimize for the first time, and when you upgrade to a major new version of it. We recommend UpdraftPlus.

Are there any bugs in this plugin?

The plugin is an ongoing work; that means that it is impossible to rule out unforeseen situations and bugs. So I would recommend you to test it out on your local system or make a backup of your database (just to be extra careful).

How do I stop transient options from coming back automatically each time I clear them?

When WordPress uses a particular transient, that specific transient is re-created automatically. So, it’s normally for ones which are in active use to gradually re-appear. The best way to keep things optimal is to clear the transient options on a scheduled basis. For example, WordPress may create 50 transient option in a week. If you schedule WP-Optimize Cache to clear these options on a weekly basis, you’ll have far fewer building up.

The table size shows wrong / Not optimizing

Please check your database for corrupted tables. That can happen, usually your web hosting company can run the repair command on the db.

Which WordPress and PHP versions are supported?

To use all features in the plugin, a minimum of version WordPress 4 with PHP 5.3 are required. But we do recommend to use the latest version of WordPress. Using PHP 7+ is also highly recommended, as our caching feature will work even faster.

Which optimisation will make the biggest difference?

This depends on your setup (theme, number and quality of plugins used, etc…), but generally, caching will make the biggest visible difference to your website’s performance. Indeed, the cache functionality bypasses most of WordPress code to serve your pre-optimised cached pages directly to your visitor, significantly increasing the speed.

What is caching, or page caching?

“Caching”, from Wikipedia: “In computing, a cache is a hardware or software component that stores data so that future requests for that data can be served faster; the data stored in a cache might be the result of an earlier computation or a copy of data stored elsewhere. A cache hit occurs when the requested data can be found in a cache, while a cache miss occurs when it cannot.” — WP-Optimize cache does this by saving the page computed by WordPress on the disk. When a user visits a page, WP-Optimize will serve the cached page before WordPress is loaded. If the page wasn’t cached before, it will be computed by WordPress, and WP-Optimize will then save the result to the cache.

Why should I use a caching plugin on my website?

You think your site is fast without caching? A caching plugin will make your website even faster. A faster cached website will increase SEO, it will improve your visitors experience. Caching will also save your server’s resources.

Is the WP-Optimize page cache compatible with Gutenberg and WordPress 5.0+?

Yes, your Gutenberg pages will be cached, as well as those created with page builder plugins such as Elementor.

How do I know my webpage is being cached (or why it isn’t)?

If cache is enabled, and in order to see if your page is cached, use the “View Source” function in your web browser to view the page source. To find caching information, scroll down to the bottom, and you should see a line added by the cache: <!-- Cached by WP Optimize - https://getwpo.com - Last modified: Sat, 20 Jul 2019 21:17:19 GMT ->
However, note that if you are using a further service that minifies HTML (e.g. Cloudflare), then this line may have been removed. Another method is to inspect the contents of the directory wpo-cache inside your wp-content directory. <a href=”https://getwpo.com/faqs/how-do-i-know-my-webpage-is-being-cached/>Further information can be read here
Also note that if you do not preload the cache, a page or post will have to be visited once for the cache file to be generated.

How do I configure the page cache?

Go to WP-Optimize -> Cache and enable caching. For most people, that will be enough. If you run an e-commerce, have a custom login page or any page that has dynamic content, you might want to exclude certain urls from the cache. See Advanced caching options in our cache documentation to know more on excluding an URL from the cache.

Is the caching feature compatible with e-commerce plugins?

Yes, caching with WP-Optimize Cache allows you to safely cache your products, with plugins like WooCommerce or Easy Digital Downloads, or any e-commerce that uses DONOTCACHEPAGE to exclude sensitive pages from caching (e.g. my account, cart or checkout pages).

Is the caching feature compatible with multilingual plugins?

Yes, WP-Optimize works with popular multilingual plugins like WPML or Polylang. However, it’s important to note that when using WP-Optimize with multilingual plugins, the URL format for different languages should not include any query parameters, for example https://example.com/?lang=en. Instead, it should be in a pretty permalink format, such as https://example.com/en.

Do I need a special setup to use the caching feature?

No, if WordPress works properly, WP-Optimize will be able to cache your pages and posts.

Can I use the page caching feature together with another cache plugin?

No, because both cache plugins would need to use the drop-in plugin advanced-cache.php. If you turn off caching on WP-Optimize Cache, you can use any other caching plugin and still use the other features of WP-Optimize. But we do recommend using our caching solution.

Is WP-Optimize caching compatible with Cloudflare?

Yes! No special cache configuration is needed. Page caching on the WP site (that done by WP-Optimize Cache) is independent of proxy cacheing (e.g. Cloudflare) – you can use both, or neither, and they will complement each other and not interfere.
Just one thing to note – Cloudflare will strip out the special HTML comment at the bottom of the source of a page that is helpful to confirm that page caching is working, so, don’t be confused by that – it’s absence doesn’t indicate the cache is not working.

Can I empty the cache automatically when performing a custom action?

Yes, you can trigger a cache purge action using WP-Optimize Cache public functions. If you want to clear the whole cache, use the function wpo_cache_flush(). If you want to clear the cache files for a specific page or post, use WPO_Page_Cache::delete_single_post_cache($post_id);. Those cache options are available after WP action plugins_loaded.

Will the comments work even when page caching is enabled?

Yes, when using WordPress’ commenting system, your users will still be able to post comments. Every time a comment is approved, the cache for that page or post will be cleared, allowing the next visitor to see an up to date list of comments.

What is “cache preloading”?

Usually, a page is cached when a user visits it. So the first user visiting won’t be served a cached version of the page, and will wait longer than the next users. The cache preloading functionality will go through all your pages and posts, and simulate a visit by a user, allowing WP-Optimize to cache the pages before anyone visits them. Your first visitor will thus be served a cached version of the page, increasing its performance.

What frequency should I choose for the cache preloading schedule?

Choosing a frequency for the cache preloading schedule will depend on factors such as the frequency at which the website content is updated, the number of pages in the cache, the resources of the server and more.
For example a site with hundreds of pages will require more resources to preload its cache. So choosing a high frequency will mean that the cache will be recreated often, and the resource usage will be higher.
On a website where updates aren’t as frequent, you can even disable the cache preloading schedule, or set a high cache lifespan and set the cache preloading schedule to follow it.

How do I cache only the home page?

Add /.+ to the cache option “URLs to exclude from cache” on the advanced settings tab.

How do I prevent WP-Optimize Cache from caching a certain page

To prevent a page from being cached, you can add the URL to the field “URLs to exclude from cache” in the cache “Advanced settings” tab. If you are developing a plugin and want to prevent a page from being cached, you can define the “DONOTCACHEPAGE” constant on the pages you need. Any request where “DONOTCACHEPAGE” is defined will not be cached.

Is the caching feature of WP-Optimize free?

Yes the caching feature is free. You will always be able to cache your website for free using WP-Optimize and we are constantly working on improving the existing cache feature. We will add more caching options to the free version and develop more specific caching options in the premium version to enable you to taylor the caching functionality to your needs.

Where does WP-Optimize Cache store the cached files?

The cached files are stored in the common “wp-content/cache” folder, inside a “wpo-cache” folder. Removing the “cache” folder will delete all of WP-Optimize’s cache, as well as those from other plugins.
Deleting the “cache” folder is generally safe, as those cached files will be regenerated.

How do I disable caching?

Go to WP-Optimize settings > Cache and toggle the “Enable page caching” option to on/off.

Will caching slow down my server?

No, caching will actually reduce the load on your server, by reducing the amount of PHP and mysql used. You might see a peak in resource usage when using the cache preloader, as this functionality will create the cache files for all your pages in a short amount of time. But once this is done, performance should increase and the load on your server will decrease. Every single major site uses caching to serve cached pages faster by using fewer resources.

Can I make certain parts of the page stay dynamic when cache is enabled?

The cached page is sent to the user before most of WordPress was loaded. The plugins aren’t loaded yet, making it impossible for them to change the cached content at every request.
So at the moment if you want to keep parts of your page dynamic (e.g. adverts, widgets, shopping cart…) AND keep it cached, you will have to use custom solutions using javascript and AJAX to fetch those dynamic parts from the server.

How do I delete the WP_CACHE define from wp-config.php?

WP-Optimize Cache will remove the “WP_CACHE” constant from wp-config.php when you disable page caching, or when you deactivate the cache plugin. If you need to remove it manually, you can use FTP to edit wp-config.php and delete the line define (‘WP_CACHE’, true );
If page caching is still enabled in the settings, WP-Optimize Cache will attempt to add the line again, as it is required for the caching functionality to work.

My filesystem is not writable to increase security. What do I need to do to make it compatible with the caching functionality?

WP-Optimize caching feature needs write access to the ‘wp-content/cache’ folder, as this is where the cache files will be stored. It also needs to define the constant ‘WP_CACHE’ in ‘wp-config.php’, it will need access once to ‘wp-content/advanced-cache.php’, as well as to the folder ‘wp-content/wpo-cache’ to write the cache settings.

How do I change file permissions?

If you need to change file permissions to enable caching, you can follow the instructions on this page https://wordpress.org/support/article/changing-file-permissions/

What is the maximum number of pages I can cache?

There is no limit to the number of pages you can cache. The only limit is the space on your server and the maximum number of subdirectories allowed by your server, as caching will write files in subdirectories following the permalink structure.
If you were to reach a caching limit, it probably means that your server is not fit for the size of your website and caching needs.

How do I serve cached pages to people using a phone or tablet?

You can generate a separate cache by selecting ”Generate separate files for mobile devices” in the page cache settings. This cache setting is only necessary if you use a specific theme for mobile devices, or for certain AMP plugins.

Does WP-Optimize Cache work with Nginx?

Yes, the cache feature works with Nginx. Should you want to enable browser caching or GZIP compression, you will have to do this yourself directly on the server settings.

Does caching work with Windows Server (IIS) ?

Yes, the cache feature works with IIS. As with Nginx, if you need to enable browser caching or GZIP compression, you will have to do this yourself on the server.

Does the WP-Optimize page cache work with non-pretty (query parameter-based) permalinks?

No. It’s necessary to have pretty permalinks of the type http://xxxxx.com/my-post/ rather than http://xxxxx.com/?p=1234 for cache to work. Pretty permalinks are the WordPress default setting, and there is no good reason to turn them off, so you should not have a problem with this.
Note that cache will work with permalinks including /index.php/. It is only those based upon query parameters (?…) where cache won’t work.

When does WP-Optimize clear the page cache?

When you publish new content or update/edit existing content, the cache for that post/page will be cleared.
Changing/updating current themes and parent themes (of child themes) will purge the cache.
When turning off the cache feature in WP-Optimize

Will pages in the WP admin dashboard be cached?

No, WP dashboard pages are not cached. The cache functionality is only meant to cache frontend pages.

What is cache lifespan?

The cache lifespan is the time a cached file will be kept before being regenerated.
One of the main reason for setting a lifespan to your cache is that some plugins and themes use nonces, which are printed in the source code of the page (Read more about nonces here). These nonces cannot be reused and are valid for 12 hours by default (developers can change that value). The cache plugin will store the nonce in the page, and this one will become invalid after that perdiod of time, which can affect certain functionalities of your plugins and themes. Setting a cache lifespan to under 10 hours ensures the cache is flushed automatically before the nonce expires. This way you can use WP-Optimize’s cache feature on sites which use nonces.
An other reason is that you may want your pages to reflect some changes without having to clear the whole cache. Indeed if you have many pages and posts, you might not want to clear every cache file with every change, but rather set an interval at which they will expire and be regenerated.

What value should the cache lifespan be?

A lower cache lifespan value will result in more frequent cache update activity on your server, and thus more preload processes, if activated.
If your site does not use nonces, and your site’s cache doesn’t need to be updated often, you can set the cache lifespan to a high value or to 0 to give it an infinite lifespan.
The cache lifespan option is set to 10 hours by default, but you may go down to 8 or even less.
If you notice any issues due to high server load, set a higher interval for the preloader.

Can WP-Optimize Cache minify JavaScript, CSS and HTML?

Yes, the newly added Minify enables you to minify JavaScript and CSS. It also enables you to minify HTML.

What is “Minify”?

Why minify my WordPress site?

WP-Optimize Cache’s Minify feature is all about increasing the speed of your WordPress site for your users.
One way Minify does this is by reducing the size of your HTML, CSS and JavaScript files by removing unnecessary spaces and lines from the files and shortening long names internally within the code.
Another way is that your files are merged into as few files as possible. This reduces the amount of load on your web server and can be quicker to load fewer files.
You can also defer the loading of any CSS or JavaScript file. This means any large or extraneous CSS or JavaScript file can be loaded independently from the core of your WordPress site; giving your users quicker access to your site.

What does “Reset the minified files” actually do?

Pressing the “Reset the minified files” does:
* delete the temporary files used when generating the minified assets
* delete old minified files (more than 30 days old)
* add a folder for the new minified files, which will be generated when visiting a page
The previously minified CSS files will remain on the server until they expire, or until they’re deleted using the button “Delete all the files generated by minify”.

Can I defer CSS and JavaScript using WP-Optimize Cache?

Yes, the newly added minification feature (a.k.a. Minify) allows you to defer parsing of JavaScript and CSS.

Google’s PageSpeed Insights says to leverage the font-display CSS feature to ensure text is user-visible while webfonts are loading. Can WP-Optimize Cache do that?

Leveraging the font-display CSS feature is currently possible when using Google Fonts. The default parameter is “swap”, but can be changed using the WordPress filter “wpo_minify_gfont_display_type”.

When enabling minify, my site’s layout is broken. How can I fix it?

This usually means one or more of your CSS files are incompatible with the minification or merging process. It can also be caused by errors in the CSS’s syntax.
You can check the CSS’s syntax by using an online CSS syntax checker such as csslint.net.
If your syntax is not causing the issue, or you cannot change the file with an issue, you can either exclude the problematic CSS files from the minification and merging process.
To exclude individual CSS files from the minification and merging process, you can go to WP-Optimize > Minify > CSS and go to the “Exclude the following CSS files from processing” section.

When enabling minify, some functionality is broken. How can I fix it?

This usually means one or more of your JavaScript files are incompatible with the minification or merging process. It can also be caused by errors in the JavaScript’s syntax.
The first thing to try is to enable the setting “Contain each included file in its own block” in the JavaScript options (WP-Optimize > Minify > Javascript > JavaScript options). This could “catch” an error, and prevent the rest of the code to be broken.
If the first option didn’t work, try disabling merging of JavaScript files.
If none of the above works, disable processing of JavaScript files in the minify settings, and open a support thread with details about your issue. We’ll do our best to help you troubleshoot the issue.

How do I use the image optimisation feature?

Changelog

3.2.14 – 30/Mar/2023

FIX: Compatibility with WordPress 6.2 when using PHP 8.x
FIX: Divi builder’s edit mode when WebP serving is using the “alter HTML” method
FIX: Premium – Unused images feature – improve compatibility with Beaver Builder and its addons
FIX: Cache – Page caching wasn’t working on the IIS webserver
TWEAK: Update seasonal notices
TWEAK: Prevent deprecation notices in PHP 8.2+

3.2.13 – 13/Mar/2023

FEATURE: WebP – Ability to convert to webp format from media library
FIX: Prevent PHP warning when minify-log files are missing or corrupted, also added appropriate error message
FIX: Delete webp files and uncompressed file when media is deleted
FIX: Polylang compatibility – now upon updating any post, caches for all translated languages are cleared
FIX: Prevent adding unsupported media types to the smush task list
FIX: WebP – Unsupported formats throws a fatal error
FIX: Compress image UI for webp images
FIX: Premium – WebP Images are marked as unused images
FIX: Resolved an issue where Beaver Builder’s edit mode was not functioning properly when WebP conversion was enabled
FIX: Prevent creating multiple cache directories for URLs that contain non-English characters
TWEAK: Preload allowed time difference is set to be the same as max execution time
TWEAK: Premium – Unused images feature – Add compatibility with Yoast SEO social images
TWEAK: Prevent jQuery deprecation notices
SECURITY: Fixed a non-persistent XSS vulnerability that could occur on certain servers when the WebP conversion option was enabled. This vulnerability could allow an attacker to execute arbitrary JavaScript code in the victim’s browser by tricking them into clicking on a specially crafted link. Thanks to Paolo Elia for reporting this.

3.2.12 – 06/Feb/2023

SECURITY: Today’s 3.2.11 release (free version only – there was no 3.2.11 Premium release) checked nonces incorrectly, opening up the possibility of an attacker tricking an admin into clicking links crafted to perform unauthorised actions on the WP Optimize configuration on his site.

3.2.11 – 06/Feb/2023

FIX: Empty query string updates cache
FIX: Cache – Purge cache after string translation update in WPML
FIX: Cache – Preload stuck and fails to complete
FIX: Prevent PHP warning when .htaccess files don’t have write permission
FIX: Premium – Fixed compatibility issue with WP Hide plugin
FIX: Minify – Less than 20KB stylesheets loading order
TWEAK: Add cron event only if clear backup images is enabled
TWEAK: Cache – Use WordPress GMT offset for cache comment
TWEAK: Only allow image types that can be compressed
TWEAK: Cached page is not served for sites that have own directory for WordPress files

3.2.10 – 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 – 06/Sep/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

3.2.8 – 23/Aug/2022

FIX: Build system error led to a missing file in 3.2.7 which could cause an error when using related functions
FIX: Fix incorrect function name in admin class

3.2.7 – 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 – 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 – 03/Jun/2022

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

3.2.4 – 24/May/2022

FEATURE: Create a cron job to delete expired cache files
FEATURE: WebP image format can be used to serve images
FIX: Incorrect record count after importing
FIX: Image smushing issues
FIX: Problem with Redirect – Trailing Slash on URLs
FIX: Unused images issue with ACF repeater and nested fields
TWEAK: Added functionality for exclude caching based on conditional tags
TWEAK: Update last optimized time for scheduled optimizations
TWEAK: Cache – Prevent already header sent warnings while importing posts
TWEAK: Improved UI for actionscheduler_ tables
TWEAK: Add filter to allow/disallow gz file generation
TWEAK: Show error message to user when WP_CACHE constant can’t be removed from wp-config.php due to file permission issue.

3.2.3 – 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
TWEAK: Force monolog 2.3.* in order to avoid PHP 7.2+ dependency

3.2.2 – 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_current_user()
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 – 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
TWEAK: Fix path to wpo-plugins-tables-list.json in robots.txt

3.1.12 – 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 – 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 – 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 – 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
FEATURE: Premium – Cache – Always purge this page
TWEAK: Update seasonal notices
TWEAK: Bump WP version requirement to 4.5+

3.1.8 – 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
FIX: Premium – Unused images – Pagination not working in the trash
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 – 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 to 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 – 17/Dec/2020

FIX: Fix wrong class name

3.1.5 – 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 – 15/Sep/2020

FIX: Prevent fatal error when updating

3.1.3 – 15/Sep/2020

TWEAK: Added Oasis Workflow Pro tables to the list
FIX: Unused images – restore from trash UI issue
FIX: Premium – Unused images – Images trash works on multisite
TWEAK: Prevent GLOB_BRACE warning on systems not supporting it
TWEAK: Minify – Reset minified files when saving an Elementor page or post
TWEAK: Minify – Purge cached assets when UpdraftCentral was updated.
TWEAK: Minify – Enable users to defer all JavaScript, including the merged and minified assets
TWEAK: Minify – Improve general compatibility with The Events Calendar and other plugins
TWEAK: Image compression – prevent database warning when the table ewwwio_images does not exist
TWEAK: Image compression – Detect already compressed images by other plugins (ShortPixel Image Optimizer, Smush, Imagify, Compress JPEG & PNG images by TinyPNG, EWWW Image Optimizer)
TWEAK: Image compression – Added compression stats in the Media Library’s list view
TWEAK: Image compression – Possibility to restore all compressed images
TWEAK: Image compression – Remove NitroSmush service, which is no longer active.
TWEAK: Image compression – Tweak user agent when requesting to resmush.it
TWEAK: Preserve selected optimizations when saving settings
TWEAK: Page caching – Prevent PHP Notice: Trying to get property ‘comment_status’ of non-object
TWEAK: Cache – Do not serve from cache when a user has posted a comment
TWEAK: Cache feature – Added integration with Cloudflare (Premium)
TWEAK: Page caching – Rename variables in the global context to more specific names
TWEAK: Premium – Prevent potential JS error in the “unused images” feature
TWEAK: Premium – Unused images – Add support for Slider Revolution
TWEAK: Premium – Unused images – use the URL stored in attachment meta-data as fallback
TWEAK: Premium – Unused images – Only fetch image informations when requesting the information to be displayed
TWEAK: Premium – Lazy-load – Show a notice when a known plugin also provides lazy-loading, instead of disabling the feature
TWEAK: Minify – Only load the required vendor classes instead of using composer’s autoload in order to prevent compatibility issues
TWEAK: Minify – Added filters wpo_minify_get_js and wpo_minify_get_css to enable users to do extra processing before saving the code
TWEAK: Minify – Prevent PHP warning when no log is present
TWEAK: Minify – Prevent error when the function gzencode doesn’t exist
TWEAK: Removed MetaSlider notice in the notices collection

3.1.2 – 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 – 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 – 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 – 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
TWEAK: Premium – Possibility to exclude a page from cache from the page / post edit

3.0.18 – 27/Mar/2020

TWEAK: Wipe WP-Optimize settings function
FIX: Don’t override advanced-cache.php if caching is disabled

3.0.17 – 19/Mar/2020

FIX: Show image as uncompressed after restoring backup from the media modal
FIX: Save the last state for “take a backup” checkboxes
TWEAK: Load optimizations and database tables list via ajax
TWEAK: Move database optimization settings to the database page
TWEAK: Improve error handling for ajax requests
TWEAK: Cache feature – Add the filter wpo_cache_show_cached_by_comment to enable users to hide the HTML comment
TWEAK: Cache feature – Clear archive page cache when post is updated
TWEAK: Cache feature – Possibility to exclude front page from the cache
TWEAK: Cache feature – Deny direct access to cache files folder
TWEAK: Cache feature – Prevent direct access to cache config content
TWEAK: Image compression – Prevent confusing errors when restoring an image whose backup file was deleted
TWEAK: Only show the plugin’s own notices on WP-Optimize’s pages
TWEAK: Remove MetaSlider related message
TWEAK: Premium – Page cache – Possibility to generate a cache file per country with WooCommerce geolocation
TWEAK: Premium – Reorganise cache extensions to only keep the code required at the cache generation / fetching stage
TWEAK: Premium – Unused images – add support for non-dated folders
TWEAK: Premium – Unused images – Added wpo_unused_images_per_page filter for filtering images per page count
TWEAK: Premium – Unused images – Possibility to move unused images to trash before completely deleting

3.0.16 – 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 – 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 – 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 – 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
FIX: Image compression – Fixed detecting of uncompressed images
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 – 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 – 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 – 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 – 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 – 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 – 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
TWEAK: Purge site homepage cache after updating post or publishing a new post (can be over-ridden with the filter wpo_delete_cached_homepage_on_post_update)

3.0.6 – 25/Jul/2019

FIX: Regression causing incorrect JavaScript filenames in the Premium release in 3.0.5
TWEAK: Also add cache-busting for the compiled handlebars file
TWEAK: Change the handlebars enqueue handle to prevent double loading

3.0.5 – 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 – 20/Jul/2019

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

3.0.3 – 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 – 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

3.0.1 – 18/Jul/2019

FIX: Prevent a potential stray line of text appearing

3.0.0 – 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

2.3.4 – 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 – 17/Apr/2019

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

2.3.2 – 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’
TWEAK: Updated plugin links

2.3.1 – 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 – 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 – 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 – 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 – 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 – 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 – 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

2.2.7 – 31/December/2018

RE-FACTOR: Refactoring and reorganisation of the UI
TWEAK: Added feature to view unused images as list
TWEAK: Fix sorting sizes columns in Tables information to take into account textual modifiers
FIX: MetaSlider images detected as unused
FIX: Preview for Trashed posts optimization doesn’t work
FIX: Unselected optimizations could be run on a scheduled run

2.2.6 – 30/October/2018

FEATURE: Added Gzip compression support
FIX: Unexpected content in the footer after preview popup closed
TWEAK: Mark as supporting WordPress 5.0
TWEAK: Update seasonal notices
TWEAK: Removed redundant checkbox for Lazy Loading settings
FEATURE: Remove orphaned database tables, and identify (many) known tables by plugin.

2.2.5 – 24/August/2018

FEATURE: Preview data before deleting. (Premium)
FEATURE: Lazy Loading for images, iframes and videos. (Premium)
FEATURE: Added custom capabilities wpo_prevent_run_optimizations and wpo_prevent_manage_options (Premium)
FIX: Correct tables order sorting
FIX: Wrong numbers in total cleaned field
FIX: Don’t show incorrect overhead value if option innodb_file_per_table disabled
TWEAK: Added option to clean “all” transient options and network-wide transient options for multisite WordPress installation
TWEAK: Links to UpdraftPlus automatically Install/Activate UpdraftPlus plugin
TWEAK: FAQ links point to getwpo.com
TWEAK: Auto-draft, revision posts and pingback comments removing with their meta data
TWEAK: Scheduler is not using the WordPress timezone settings
TWEAK: Detecting corrupted tables in background.
TWEAK: Unused Images optimization correctly detects images in pages built with popular plugins – Page Builder by SiteOrigin, Visual Composer, Beaver Builder, Elementor.
TWEAK: Paginate unused images
TWEAK: Added checkbox for select all optimizations
TWEAK: Prevent deleting homepage images in image optimization
TWEAK: Override the default multisite site list fetch limit of 100 sites

2.2.4 – 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 – 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 mentioned 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 – 28/Feb/2018

TWEAK: Prevent possible PHP notice when parsing logger options

2.2.1 – 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 – 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 – 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 – 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 – 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

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

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

1.8.9.10

Security Patch provided by Dion at WordPress.org and Security report provided by http://planetzuda.com .
Language files update

1.8.9.8

Daily Schedule Option Added
Email notification on automatic optimization, default email is admin email address. You can change this in settings

1.8.9.7

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.

1.8.9.6

There were few number formatting problem and detection of InnoDB table format. Charles Dee Rice solved the problems that I missed out. Thank you!
Duplicate msg fixed
Enable/Disable trackbacks for all published post
Enable/Disable comments for all published post

1.8.9

ONE MILLION+ Downloads. THANK YOU!!
Language updates platform – see readme file for details.
Mixed type tables optimization supported and in BETA
Removal of akismet metadata from comments
Removal of other stale metadata from comments
InnoDB tables won’t be optimized.
Main screen user selection will be saved. Red items selection will not be saved
Scheduled time display will be shown according to WordPress blog local time

1.8.6

Language files update
Fix issues with total gain number problem
InnoDB tables detected and features disabled automatically, tables view will not show Overhead. Main view will not show space saved, or total gain.

1.8.5

Version bump + modified translator names

1.8.4

Problem with readme file changes

1.8.3

Minor fixes

1.8.1

A whole lot more code optimization
Slick new interface
Responsive mobile interface, supports running from iPhone/Android/Tablets
Tables moved to independent tab
Optimize faster
GitHub updater support
I do not monitor WP forums, support email at plugins(at)ruhanirabin.com

1.7.4

More Translation compatibility.
Added MYSQL and PHP versions beside the Optimizer tab.

1.7.3

Fixed Problems with wpMail.
Fixed Problems with wpAdmin menubar.
Fixed Permission issues on some site.
Language files update

1.7.2

All MySQL statements re-factored into native WP database calls – necessary for future versions of MySQL and WordPress.
Upgrade to match WordPress 3.9 changes.
Language files update
Now postmeta cleanup is disabled from code – it will be updated soon with native WordPress postmeta cleaning options.

1.6.2

Language files update

1.6.1

Fixed – trashed Comments was not clearing out.
Language files update

1.5.7

Language files update

1.5.6

“Unused Tags cleanup” option made a problem on some WordPress sites that it deletes empty categories. Since I am unable to replicate this problem. I am making this option disabled.
Language files update
Minor maintenance and fixes.

1.5.5

Safe clean up options are selected by default, defaults are not by user preference for now (Optimizer Page).
All the potentially dangerous clean up options are MARKED RED.
Language files update
New features explained – http://j.mp/HBIoVT (read the blog post).

1.5.4

More path related fixes for various warnings. Maintenance

1.5.2

Fatar error fix, if it disabled your wp admin, please remove the wp-optimize directory and reinstall again.

1.5.1

Option to add or remove link on wp admin bar (even enabled – it is visible to admin only).
New admin interface.
Settings to select items for automatic optimization.
Removal of WordPress transient options
Removal of orphaned post meta tags.
Removal of unused tags.
3 different schedule times added (weekly, bi-weekly and monthly).
Language files update
Code optimization and translation strings updated.
Integrated development log from TRAC

1.1.2

removed persistent admin bar menu item
Language files update

1.1.1

Fix Fatal Error.

1.1.0

Added WP-Optimize to admin menu bar on top. Always accessible.
Added wp-optimize.pot file for translators (inside ./languages/ folder).
Last auto optimization timestamp / display
Fix possible scheduler bug as requested at support forum
Fix some other codes regarding SQL query parameters
Ability to keep last X weeks of data, any junk data before that period will be deleted – this option affects both Auto and Manual process. Appreciate time and help from Mikel King (http://mikelking.com/) about this matter.

1.0.1

Removed auto cleanup of trackbacks or pingbacks.. it’s better for people to do it manually.

0.9.8-beta

added beta tag

0.9.8

Remove all trackbacks and pingbacks (can significantly reduce db size)
Remove all Trash Comments and Posts
Enable/Disable weekly schedules of optimization. This is an EXPERIMENTAL feature. It may or may not work on all servers.

0.9.4

Non Initialized variables fixes as of https://wordpress.org/support/topic/plugin-wp-optimize-errors-in-debug-mode?replies=2

0.9.3

Removed security tools.
Full database size displayed

0.9.2

Now the plugin is visible to site administrators only. Authors, Contributors, Editors won’t be able to see it.

0.9.1

Fixed problem with database names containing “-” .
NEW Main Level Menu Item added for WP-Optimize, You might need to scroll down to see it
Compatibilty with WordPress 3.1
Language files update
Added auto draft post removal feature

0.8.0

Added Multilanguage capability
Language files update

0.7.1

POST META Table cleanup code removed cause it is making problems with many hosts

0.7

Added cleanup of POST META Table along with the revisions
Fixed some minor PHP tags which causes the total numbers to disappear
Now requires MySQL 5.1.x and PHP 5.1.x

0.6.5.1

Fix Interface