[jrochkind1]

That makes sense.

This was reported like it affected all download URLs based on a git tag, which also means all download URLs appearing on github "release" pages.

If so, I'd have expected there would have been some testing that would have caught this too. Of course, sure, bugs in tests happen too.

Obviously bugs happen because bugs happen. I stand by being more disturbed that it took two days to notice and revert to restore the regression than I am by the fact that a regression happened. Users noticed right away and tried to report the problem, it took two days after that for Github to comment on it and to revert, which seems problematic, no? Especially if the bug was really affecting as many download URLs as I think it was reported; if it was only affecting a minority of edge case ones, that's more understandable.

It's never possible to eliminate regressions. (It may be possible to reduce the rate of them of course). But whether by testing or by receiving error reports from users, it ought to be possible to notice all major regressions in less than two days.