Why has `_PyThread_CurrentExceptions` disappeared from the exported symbols (but `_PyThread_CurrentFrames` is still there)?

[vstinner (Victor Stinner)]

On Python 3.13, you can call sys._current_exceptions() in C which wraps the internal _PyThread_CurrentExceptions() function. Tell me if you need help to write code to call the function. It works on Python 3.12 and older: see sys._current_exceptions() documentation.

So I was wondering whether it is expected that _PyThread_CurrentExceptions is no longer available from symbols, whilst _PyThread_CurrentFrames still is.

mod_wsgi uses _PyThread_CurrentFrames() which triggered to restore the function in Python 3.13 alpha 2:

• [C API] Revert of private functions removed in Python 3.13 causing most problems · Issue #112026 · python/cpython · GitHub
• Ongoing packages' rebuild with Python 3.13 in Fedora