I could be wrong, and have been many times before. However, it seems as if the “final” update for the previous version after the next has been released is a thing of the past. Please, please, please Steinberg … tell me that I am wrong!
For what it’s worth, I have been religiously behind the times as far as the latest versions go. I typically have been purchasing updates when they are on sale, then waiting to activate until I’m within the grace period for the next version. For example, I’ll purchase an update from 10.5->11 when it’s on sale and wait until 11.5 is released to activate. New features are temping, but stability and predictability are more important.