cpython/Misc/NEWS.d/next/Core_and_Builtins/2024-11-19-17-17-32.gh-issue-127010.9Cl4bb.rst

Simplify GC tracking of dictionaries. All dictionaries are tracked when
created, rather than being lazily tracked when a trackable object was added
to them. This simplifies the code considerably and results in a slight
speedup.