We test the Debian 10 -> Debian 11 upgrade in https://salsa.debian.org/mariadb-team/mariadb-10.5/-/jobs/1222976
Source: https://salsa.debian.org/mariadb-team/mariadb-10.5/-/blob/master/debian/salsa-ci.yml#L201-226 Would you like to contribute by extending the salsa-ci.yml to test for the upgrade scenario you have which is not yet covered by the existing tests?
