2.8 Plugin Compatibility

Some plugins are causing grief for those upgrading to 2.8.

  • HyperDB needs to be updated to the latest version, otherwise tags won’t save.
  • DB Cache also prevents tags from being saved. I haven’t seen an update for it yet.
  • Plugins that load old versions of jQuery for all admin pages will break all kinds of stuff.  Plugins should use the version of jQuery that ships with WP.  If a plugin must use a particular version of jQuery, that version should be queued only for the plugin’s own pages.
  • Themes that call get_categories() from functions.php before the init action fires will fail.  2.8.1 will workaround this, but ideally these themes should update so that they can handle custom taxonomies properly.

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