Hello - We are in the process of kicking off a product to perform a patch and kernel upgrade on our ECC system. We plan on creating parallel DEV and QAS environments so that we do not have to freeze development while the upgrade is taking place. We were informed by our VAR that any development performed in the parallel system (lower patch level) while the upgrade was happening would also have to be duplicated (re-done) in the other environments (higher patch level). This would double our development estimates and obviously push out delivery timelines.
Is this truly the only way? I found it hard to believe that we couldn't replicate the development work performed in the other environment without doubling our effort.