Glad that it’s resolved for you @asym.
@RaSt What is your MariaDB version?
@isacikgoz the MariaDB-Version is 10.1.48
@RaSt Can you update your MariaDB version to a newer one e.g. 10.5+? I think it should work this out.
ive updated MariaDB and it works… Thanks
I´ll update the MariaDB and try the update again.
For Ubuntu LTS users: An update to MariaDB 10.3.31 (which comes with Ubuntu LTS 20.04) solves the problem, too
I´ve updated the MariaDB to 10.5 and the Mattermost-Update afterwards to 6.0.3 worked.
Thank you very much.