Upgrading Movable Type Comments to 4.1 »
When Six Apart released Movable Type 4.1, with it they released an entirely new commenting architecture. And technically, the foundation was laid with MT4 - but let's face it, until 4.1 came out, MT4 was a bit lacking. So I'm sticking with 4.1 for this example. Sorry.
In any case, if you install Movable Type 4.1 for the first time, you'll probably be set - because you'll be starting from scratch. But if you take an existing installation and try to upgrade your site - specifically your comment process - so that it will work in 4.1, you might have some issues. Luckily, it's a really easy fix. It's just not particularly apparent how you should make the fix, which leads to a very frustrating process to get them working again, and that in turn leads to a whole mess of time wasted. Hopefully this entry will help you get things on the right track again.
