Nextcloud 27 support

[sunjam]

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

ETA for first stable release would be 5/31/2023.

• Nextcloud 27 milestones on server github repo
• Removal of PSR 0 class loader announcement.
• perf(autoloader): Drop legacy class autoloader server#36114
• Deprecation and removal of PHP8.0 support server#36437

[sunjam]

update from the developers on shortened release cycle:

Hi there, coming with some news today.
If you stalk https://github.com/nextcloud/server/wiki/Maintenance-and-Release-Schedule you might have noticed already. But Nextcloud 27 is just around the corner. It was decided to go with a shorter Nextcloud 27 cycle and a longer Nextcloud 28 cycle to better fit some internal schedules.

27 Beta 1 aka. Feature freeze is on 4th May (exactly 1 week from now)
27 RC 1 aka. String and UI freeze is on 17th May (moved to Wednesday as Thursday is public holiday in Germany and more)
The final date is not yet settled, but should at least be 2 weeks after RC1

[sunjam]

27.0.0beta1 available for testing.

[janvlug]

I just upgraded to 27.0.1. Should this issue be closed? Version 27.0.2 is available as well though.

[theCalcaholic]

@janvlug Yes, this should be closed