What is a good document to read for "getting current" with PUM Images?
I have been a PeopleSoft developer for decades (sad, I know). I am very familiar with the previous Upgrade process. I am not sure the similarities/differences between getting current with PUM images (11 to 26) and a PeopleSoft upgrade (9.1 to 9.2 for example). Is there any good document that outlines the process? Especially, I am interested when and how developers can look at customization impact.
Thanks,
Lesley