Upgrading from ver 10.5.13 to 10.6.8

I am running a Slackware 15.0 distribution. Today I upgraded from MariadDB version 10.5.13 to 10.6.8. I received this message when I tried to run either mysql_upgrade or mariadb-upgrade : mariadb-upgrade -u root -p

Enter password: Major version upgrade detected from 10.5.13-MariaDB to 10.6.8-MariaDB. Check required! Error: Server version (10.5.13-MariaDB) does not match with the version of the server (10.6.8-MariaDB) with which this program was built/distributed. You can use --skip-version-check to skip this check. FATAL ERROR: Upgrade failed

Should I ignore this? I tried --skip-version-check and it never progressed past my entering the password.

Thanks in advance.