Situation is as follows: Running FC2 Current version MySQL 4.0 Upgrading to 4.1 When upgrading from 3.x to 4.x I went through the following process: Compiled and installed these 2 source RPM's mysql-4.1.11-2.src.rpm mysqlclient10-3.23.58-6.src.rpm To my understanding the mysqlclient10-3.23.58-6.src.rpm was needed for backwards compatibility Now I want to upgrade from 4.0 to 4.1 Is there also a file like this "Mysqlclient" for 4.0 which I would need if I upgrade from 4.0 to 4.1? Or as I remain in 4.x do I even need this at all? Thanks Stefaan