CCM 5.0 to 5.1 Upgrade

[tahequivoice]

I have a 5.0(4) CCM that we use for a lab, is it possible to upgrade it to 5.1 using the existing licenses? I think we are hitting a wall trying to lab setups with Presence and IPtoIP gateways on this version, plus our Operational system is 5.1, and I would like to avoid issues deploying once we finish testing in the lab. I have CCM 5.1 install disks and everything, but not an upgrade disk.

[it]

I just completed migration to CCM 5.1 from 4.x. I spent a lot of time with it in the lab beforehand testing both 5.0 and 5.1. I used the same licence file for both CM versions.