Well, that went fairly well.  The only glitch I ran into was that I was upgrading from Movable Type 2.21 to 2.6.  The installation instructions indicated that since I was using MySQL I was supposed to run mt-upgrade25.cgi and then mt-upgrade26.cgi to update the database schema to the latest level.  Unfortunately, the mt-upgrade25.cgi script had a version check that checks for level 2.5 (rather than 2.5 or later).  I just commented that part out and all was well.

One feature that I’m glad to see in this release is the ability to close comments on old articles.  I have an old posting about Bushisms that seems to attract several visitors a day.  It’s now so old that I’m not really interested in getting any more comments on it.

Update:  It helps if you remember to upgrade the template for the individual archive pages.  Otherwise the handy new logic to turn off comments will be ignored.