Core and Builtins
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-- Issue #19514: Deduplicate some _Py_IDENTIFIER declarations.
+- Issue #19514: Deduplicate some _Py_IDENTIFIER declarations.
Patch by Andrei Dorian Duma.
- Issue #17936: Fix O(n**2) behaviour when adding or removing many subclasses
Library
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+- Issue #1097797: Added CP273 encoding, used on IBM mainframes in
+ Germany and Austria. Mapping provided by Michael Bierenfeld.
+
- Issue #1575020: Fixed support of 24-bit wave files on big-endian platforms.
- Issue #19378: Fixed a number of cases in the dis module where the new