[root@mimime httpd]# occ update
Nextcloud or one of the apps require upgrade - only a limited number of commands are available
You may use your browser or the occ upgrade command to do the upgrade
Command "update" is not defined.
Did you mean one of these?
app:update
maintenance:mimetype:update-db
maintenance:mimetype:update-js
maintenance:theme:update
maintenance:update:htaccess