Followed the instructions and think I correctly installed HCDB-150928 (1980-2015 era).
Not being especially expert I just looked into the Air Platforms within game. Expected to see the F-35 there as it has been declared operational as of the past summer, not there.
Also, the 'whatsnew.rft' states: Extensive re-engineering to track platform changes over the years. For instance, many aircraft carriers will have 5 or more variations over their service lives.
Looked at the US carriers and see no such variation.
What might I have done wrong?
UPDATE
Just found the added aircraft but it seems the new updates are Battleset specific, ie not in some BS but present in others. How can I know where they appear and might they be moved to a different BS? For example, the F-35 is not present in at least one of the older BS, but what if I wanted a more modern created scenario in the North Atlantic, how might I include more modern platforms into a North Atlantic map?