Mysql db updation from 7.4 to 7.5 is not working

Make sure to use the MySQL script, i.e. mysql_engine_7.4_to_7.5.sql.
Also, see this post for an error with a wrongly formatted comment in the MySQL scripts: SQL syntax in mysql_engine_7.4_to_7.5.sql line 215

Cheers,
Thorben