Ryan,
I'm running 3.2.1 on SUSE and also want to upgrade to 4.2. I'm considering migrating to Red Hat. I don't really care about the event history, but I do need to migrate everything else, (devices, event mappings, event "transforms", alert rules, etc...). Have you had much luck migrating your production instances? Any information or documentation on the steps you went through?
Any information is greatly appreciated!
Thanks!