misc: add news entry

KowalskiThomas · KowalskiThomas · commit 317fbf41dfa2 · 2026-06-03T16:29:06.000+02:00
diff --git a/Misc/NEWS.d/next/Core_and_Builtins/2026-06-03-16-27-00.gh-issue-150858.j2dSkD.rst b/Misc/NEWS.d/next/Core_and_Builtins/2026-06-03-16-27-00.gh-issue-150858.j2dSkD.rst
@@ -0,0 +1,2 @@
+Fix a data race in :c:func:`type_set_qualname` where concurrent calls
+``__qualname__`` could cause a memory corruption on free-threaded builds.

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	+Fix a data race in :c:func:`type_set_qualname` where concurrent calls
	`2`	+``__qualname__`` could cause a memory corruption on free-threaded builds.