[mythtv-users] Upgrading From .11 to .13

[Birch, Robert - BMHO]

I have .11 installed using Jarod's guide for RH9. 
I have a PVR-250 as my capture card.

Is there a recommended procedure to upgrade my system to .13? 
Ex. Should I update IVTV first, then go to .12, then .13 or can I just
apt-get update mythsuite?

I am new to the apt-get way of installing, so not really sure how it works.

Thanks,
Robert Birch