Thread:Project:Support desk/mw-config call back error after updating from 1.22.2 to 1.22.4/reply

I currently don't have a solution and it is good, that this problm has already been reported in bugzilla, however:

You do not have to run the updater for a minor upgrade. You can just copy over the files of 1.22.4 and the update is finished. This is especially important, as 1.22.3, which had been published in between, contains security fixes, which you really should use.