Before Installing Wordpress Plugins…
Before heading over to one of the popular plugin database sites like http://wp-plugins.net, it’s a good idea to check the Plugin Compatibility List for WP version 2.3.
This list is updated by Wordpress users as plugins are tested and verified to work on each version of WP.
WP 2.3 brought some big changes in terms of database tables. For example, the wp_categories table is not used at all any longer. Older plugins referring to this table will break (at best) and possible cripple (at worst) your site.
Though many plugins not listed on the official Plugin Compatibility page will work seamlessly with the latest version of Wordpress, choosing one that’s already been tested with your version of WP my just save you a little time, and possibly a lot of hassle.
Don’t take chances
Check the Plugin Compatibility List for sure-thing plugins. If you’re in the mood to take a little risk because you realllly want to test drive a plugin not on the list, be sure to back up your database beforehand!
If a plugin is not on the Plugin Compatibility List and deals directly with WP categories, chances are it will not work with WP 2.3+. If a plugin author has updated their plugin for WP version 2.3+ it will probably be on the Compatibility List, but you can always check the plugin homepage for notes about WP version compatibility.
If you find out a plugin is compatible with your version of Wordpress, by all means, add it to the list!
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