Foods that have been frozen are safe to eat...even if having been
frozen for years.
You can't get food poisoning from eating it.
It can loose some flavor if it has been frozen for years...but; is safe
Since flavor is what we all like...you might wait and use those old
cuts of meat this winter in a stew...in the crock pot.
You can smoke it first for maximum flavor if you want.
The parts that show "freezer burn" can be cut off if you want; but,
they are perfectly safe to eat.
To help protect the flavor of foods when you freeze them....vacuum
pack them first...that way if it gets lost in your freezer for several
years...it will still have decent flavor.