I also got the same errors when I upgraded.
For “no SVG support”, it looks like the new docker image does not include php-imagick.
See solution: How to enable SVG for php-imagick - #2 by j-ed
Also the cron jobs looks like it was issues, for me it will not run at all. It won’t even run when invoke manually when I have an active external storage (SMB) connnection.
Error:
TypeError: Argument 1 passed to OC\DB\SchemaWrapper::__construct() must be an instance of OC\DB\Connection, instance of OC\DB\ConnectionAdapter given, called in /var/www/html/custom_apps/spreed/lib/BackgroundJob/CheckReferenceIdColumn.php on line 59