Lauren MacArthur, here are the changes I think I'll need for DM-35207 that would probably conflict with yours on DM-37411. Jenkins is running, so I can't promise that there will be no umprompted changes yet, and the timeline for the review is entirely up to you - I'm happy to start just basing my DM-35207 branches on these branches now and rebasing as needed.

PRs:

• https://github.com/lsst/afw/pull/670
• https://github.com/lsst/pipe_tasks/pull/738

I've left a few initial comments on the PRs.  I will give it a slightly deeper dive over the next day or two, but so far this looks great.

I've pushed a few more commits throughout the course of the day, mostly to get Jenkins through, and it's now through at least Linux. So I think it's now ready for a final look, and I'll start putting any further changes onto DM-35207 branches instead.

I left a few very minor comments on the PRs, but this all looks good to me and will indeed make further use much easier.  Thanks!

Oh, and don't forget to squash your "Will squash before merge." commits