If you’ve recently upgraded to WordPress 2.3.1, you could have either the best blogging experience if you’re a new user, or one of the worst, if you’ve been using WordPress for some time.
A key reason is mentioned on the WP-Testers list by Ryan Boren, one of the developers:
“The big schema change is the dropping of the categories, post2cat, and link2cat changes in favor of the new terms, term_taxonomy, and term_relationship tables. Any plugin that queries against the old table will break horribly.â€
What this means is that the new WordPress has shifted its data structure from a category-basedsystem to a new taxonomy.
If you’ve extensively used category-based plugins to enhance your SEO or social marketing efforts, you’ll bang into lots of error messages, as anyone who’s posted a comment on this blog will attest to.
Given the number of social-based plugins I’ve installed, and the extent to which they interface with the old (now defunct) category-based data strcuture, you can expect to Continue reading