Release 4.0 broke support for PHP 7.4 on NC25

[tcitworld]

Nextcloud 25 oldest supported PHP version is PHP 7.4.

#402 and #408 make use of PHP8.0+ exclusive syntax.

Moreover, because of the signature change introduced in nextcloud/server#38104, it's not possible to have a release which is compatible with both 25 (with 7.4 compatibility) and 27.

Therefore I suggest to make another 4.0.1 release with PHP8.0+ syntax removed to fix 25 instances, then bump to 5.0.0 for a 26+ exclusive release. You can find such code in branch fix-nc25-php7.4-compat (but it's not compatible with 27 !)

Otherwise we can have a 4.0.1 release based on stable25's code, but it will miss changes from 4.0.0. :s

Ref: https://help.nextcloud.com/t/error-after-updating-to-version-25-0-6-1/162279

@Pytal @come-nc

[Pytal]

Thanks for the heads up @tcitworld!

Closed by #424

[Pytal]

NC25 + 26 compatible version is v3.0.0