Unity Connection 12.5(1) to 15.0 upgrade

[Bill]

I am planning on upgrading Unity Connection from 12.5(1) to 15.
Specifically from 12.5.1.19017-4 to 15.0.1.11900-14

I am thinking an in-place upgrade.
But first I need to increase the RAM.
Disk and CPU are ok.

Just wondering if any caveats I can expect?
I will run the pre-upgrade check (have not done that yet)

Thanks

[Roger Kallberg]

Not on the specifics of what you asked about. Running the pre-check will give you more information. You should run that as soon as you can to find out if you need to do anything else than adding more RAM.