The next server is currently available for testing as a pre release.

 + "Error opening file: No such file or directory" message now includes filename
 - Fixed server crash when ipv6 client connects while using MariaDB (or MySQL) server
 - Database plugins are now checked more thoroughly at server startup
 ! To fix the problem with MariaDB, the server needs to alter columns in the client and bindings
   table. For large databases, this can take a while. It is recommended that all ts3servers that use
   the same database, are stopped and then one new ts3server is started first which does the update.
   After this, the other instances can be started too.
You can get it here