Nextcloud 28 support

[sunjam]

For internal testing and notes. Do not expect support!!!!!! Please do report testing issues here.
Release Schedule

Beta 1	2023-11-02
Beta 2	2023-11-09	feature freeze, base for screenshots for launch marketing
Beta 3	2023-11-16
RC 1	2023-11-23	string freeze
RC 2	2023-11-30
RC 3	2023-12-07
Final	2023-12-12

• Deprecation and removal of PHP8.0 support server#36437
  • "Drop support with Nextcloud 29 if v28 still supported it"

Nextcloud 28 Milestones

[sunjam]

edit: the next major release cycle will be for 27.1
Feature freeze 8/1 and final release 9/16 for the conference, see maintenance release schedule above. Breaking out into an independent issue from 28. Cheers.

[REAPERSbattlecry]

Was curious to test NC 28 because of the Nextcloud announcement. Update from NC 27.1.3 went smooth and without issues. Seems like everything is running well.

[schoetju]

NC 28 has been made available with #1877 .
Issue can be changed to "closed" now.