After an upgrade, RTM will not start, see log:
Solved! Go to Solution.
Yes, definitely. We're releasing 12.3.5 this week, so that's the version I recommend to use.
12.3.5 is combined 12.3 GA and includes all previous service packs and more. It is also a standalone installation package, that is you don't need to use 12.3 GA first, just take the 12.3.5 instalation binnaries and upgrade.
Note, not only the AMD should be upgraded to 12.3.5 but all other components (CAS, RUM Console, too).
Here's a resource that can help with the migration preparation: