Upgrade to Nextcloud 27
System requirements
PHP 8.2 is recommended over PHP 8.1.
PHP 8.0 is deprecated and might be removed in Nextcloud 28.
Exposed system address book
Nextcloud 27 exposes the system address book. Restrict the enumeration settings if your users should not see other users.
Web server configuration
The recommended nginx configuration changed as Nextcloud now supports module javascript with the
.mjsand audio files with.ogg/.flacextension, make sure to add these extensions to the list of static files.