It should be a painless upgrade, but like any upgrade, if you can, you might want to test it on a development machine first. Chris Peterson wrote:

Hello,

I am running OTRS 1.2.3. The version of MySQL included in the install package was 4.0. I am planning on putting another application on this server that requires MySQL 4.1, however. Does anyone know if this will cause any problems with my current installation of OTRS?

Thanks,