Thread:Project:Support desk/Upgrading from 1.17 to 1.23.1/reply (5)

Oh, there were an array of error messages once I figured out how to get error reporting sorted properly.

Most had to do with various extensions that were out of date (dutifully turned them off one by one), and some tweaks I needed to the auth plugin I was using (IPBWiki's bridge with the Invision Power Board forum software) that weren't too hard to figure out. Once I did that... well, my old Monobook-based theme didn't work, either, so I got rid of it and started fresh with a new copy of the latest Monobook. That, however, is presenting significant new problems for me (I've posted about inserting advertising in a different topic).