Minor update to force a downgrade of packaging to allow use of LegacyVersion (fixes #2428)
This is intended to be a temporary fix while we finish up the 3.2 release, but I believe we will be able to backport the removal for LegacyVersion without much trouble, so there may be one more release for the 3.1 tree if it looks like 3.2 is going to take more than a week.
Full Changelog: v3.1.1...v3.1.2