I tried out 3.11 on my pyanalyze type checker and got some failures because of this change, because my previous trick for distinguishing between Tuple and Tuple[()] failed.

3.10:

>>> from typing import get_args, Tuple
>>> get_args(Tuple[()])
((),)
>>> get_args(Tuple)
()


3.11:

>>> from typing import get_args, Tuple
>>> get_args(Tuple[()])
()
>>> get_args(Tuple)
()

However, the new behavior is more consistent: get_args(tuple[()]) always returned (). It's also easy enough to work around (just check `... is Tuple`).

I'll put a note in the What's New for 3.11 about this change.