Donncha: WP Super Cache 0.9.1

WP Super Cache version 0.9.1 is now available. WP Super Cache is a page caching plugin for WordPress that will significantly speed up your website.

Major changes under the hood in this release, and many bugfixes:

• If your blog is installed in a folder then compare the mod_rewrite rules in your .htaccess with those on the admin page. I fixed a bug in how those are generated.
• Out goes the shutdown function the plugin relied on for years (going back to the days of wp-cache), and in comes plain old output buffering on it’s own.
• If you’ve had problems clearing the cache on your blog it could be because wp-cron isn’t firing. I’ve added checks for that. Joost helped me debug that and he blogged about it too. You’ll get a nice warning message if those checks fail.
• If after all that, your cache still doesn’t clear, add $wp_cache_shutdown_gc = 1; to wp-content/wp-cache-config.php to clear the cache at the end of pageload instead of by wp-cron. It will slow down page generation for a tiny number of your users though.
• The Last and Next garbage collection times are now in the timezone selected for your blog.
• Added an admin notice on the plugin page to warn that caching has to be enabled. A warning is shown below the plugin activation row too.
• If your site runs on a Windows server, I fixed a small problem with slashes and creating the config file.
• The plugin created empty supercache folders, but that’s fixed now.
• Bad Behaviour support seems to work nicely now!
• You can now relocate the supercache plugins folder. See $wp_cache_plugins_dir in wp-cache-config-sample.php.
• I added 2 new filters: wp_cache_served_cache_file in wp-cache-phase1.php (BB uses this) and wp_cache_file_contents in wp-cache-phase2.php where you can filter the contents of the newly created cache before it’s written out to a file.
• The readme.txt has been updated too warning about using NFS to store the cache folder, solving wp-cron problems, added the list of Apache modules required for expired pages to really expire in the browser cache.

I also added a donation link in the readme.txt and on the admin page. You can hide it with the click of a button but if you’re feeling generous, I’d appreciate a donation.
I don’t expect many donations, that’s how these things work, but if you tell me your site does 100,000 page views a day and you couldn’t live without caching I might be slightly annoyed if you come looking for free support.

PS. Looks like Bad Behavior support is broken because the docs on the BB site were a little misleading and I don’t use the plugin. Grab badbehaviour.php and copy into plugins/wp-super-cache/plugins/ overwriting the file of the same name in that folder.

Related Posts

• WP Super Cache 0.8.4, the garbage collector
• WP Super Cache 0.8.7
• WP Super Cache 0.8.3 “Speedy”