Second beta release, last one before the release candidates.

1. Please ONLY add this milestones to issues that somebody is actively spending significant time on right now, and there is a concrete plan for how it will meet the deadline. This will mean having the MR ready by November ~5, since we need another 10 working days for code review, and ~5 days for testing before doing the beta.

2. Since somebody is working actively on it, that person should have the issue assigned, and with ~10 days left, it is likely difficult for anybody to be responsible for more than 10 issues.

3. Since this is our last beta, any new code that doesn't make this milestone won't be in the release. For the release candidates we will ONLY add fixes.