[Samba] Upgrading SerNet Samba 4.0 to SerNet Samba 4.1 on CentOS/RHEL?

[Thomas Harold]

Under CentOS/RHEL, using the SerNet Samba 4.0 packages, we have setup a 
repository to point at the 4.0 packages and installed:

sernet-samba-ad.x86_64
4.0.12-7.el6
@sernet-samba-4.0

What is the process for upgrading to 4.1?  Do we just turn off the 4.0 
repository and turn on the 4.1 repository?  Or do we need to jump 
through more hoops (such as removing from domain / upgrading / then 
adding back to the domain)?