In Python 3.10, _PyEval_EvalFrameDefault() has the API:

PyObject* _PyEval_EvalFrameDefault(PyThreadState *tstate, PyFrameObject *f, int throwflag);

In Python 3.11, bpo-44590 (commit ae0a2b756255629140efcbe57fc2e714f0267aa3 "Lazily allocate frame objects (GH-27077)") changed it to:

PyObject* _PyEval_EvalFrameDefault(PyThreadState *tstate, InterpreterFrame *frame, int throwflag);

Problem: InterpreterFrame is part of the internal C API.

By the way, PyInterpreterState.eval_frame type (_PyFrameEvalFunction) also changed. This field type already changed in Python 3.9:

* ``PyInterpreterState.eval_frame`` (:pep:`523`) now requires a new mandatory
  *tstate* parameter (``PyThreadState*``).
  (Contributed by Victor Stinner in :issue:`38500`.)

Maybe the Python 3.11 change should be documented in What's New in Python 3.11, as it was in What's New in Python 3.9.


I propose to move most _PyEval private functions to the internal C API to clarify that they must be used.