From what Brion tells me, Tim has been working on a script that makes applying schema changes more painless. As a result, all proposed schema changes in the last 3 months or so are waiting for this script to be finished.
Version: unspecified
Severity: normal
Brion set this to highest priority years ago, but nothing has happened (or has it...?) Lowering to normal priority.
The 1.17 schema changes were pretty easy. I don't think there's a need for more software. There's no schema change that is waiting for a script to be written for it. Marking fixed since most of the work has been done.