Mariadb not updating with Custombuild

MariaDB v10.2.10 update to v10.2.11 is available

But when i update, version is not v10.2.11.
I think it is a bug in Custombuild.

I have mulitple problems now...letsencrypt is not working with Exim and Mariadb update is not working.
Somebody of the developers is missing something...