ReleasePlan/3.3

Detailed schedule for the 3.3 release. It includes important dates for developers and also for users. See also the overall release plan.

3.3.5 release
The bug fix release has skipped because of no committed changes.

End of Life
[Note: 3.3.5 was skipped, so the 3.3 branch was essentially EOL'd after 3.3.4]