Hi,
I think we'll have to think on the mac situation later. There's really way too much to test properly over the different versions to fix quickly. I'll come up with a test plan for OSX and gather together reasons for not supporting various combinations. (eg. whl on 32bit). As you say packaging can come after the release. Some of the breakages for macOS require fixes in SDL, and packaging for 32bit requires much other work (seems whl doesn't work, so a .dmg could possibly be made again).
I updated the milestones for those issues. I think you should now be able to modify milestones in bitbucket. Let's just assign milestones to things we do going forwards, and clean up the other ones as they are done.
Next from that list of mine... I'll work on updating the release notes. I thought I had an issue open already for that... but can't find it right now.