WordPress versions 2.7 and higher have an automatic upgrade option built in. The plugin interferes with the native upgrade routine and vice versa, so neither of them will work.

If you’ve got a WordPress version older than 2.7, by all means use WPAU to upgrade it, but once you’ve arrived at 2.7 or higher you’ll need to deactivate and delete the WPAU plugin.

Always keep your WordPress installation and plugins up to date. Updates typically include security enhancements. Mixing old & new versions of WP and your plugins also doesn’t always work well.

This article copyright © John Nasta 2009 – All Rights Reserved

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