Upgrading Your Legacy WordPress Site
It used to be that WordPress 2.0.11 was the only other stable WordPress release available. However, the WP devs have now decided to discontinue support for this legacy version. But not to worry. I’ll show you here how to safely upgrade from 2.0.11 all the way to 2.8.2. You shouldn’t do it in one fell swoop, since there are too many changes close to the bone along the way. Remember, 2.0.11 will be two years old on August 5, so it’s time to retire it and move forward with all that WordPress has to offer.
The key to a successful WP upgrade is a healthy database. If the database is stable and has survived the upgrade, and you don’t have any weird calls to obsolete tags in your templates, you are cleared for takeoff. Here are the steps you should follow to ensure that your database (which contains all your posts, pages, settings and comments, your WP site’s heart and soul) survives intact.
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