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-rw-r--r--Doc/whatsnew/3.14.rst2
1 files changed, 2 insertions, 0 deletions
diff --git a/Doc/whatsnew/3.14.rst b/Doc/whatsnew/3.14.rst
index d443cf9..45ffb28 100644
--- a/Doc/whatsnew/3.14.rst
+++ b/Doc/whatsnew/3.14.rst
@@ -258,3 +258,5 @@ Deprecated
Removed
-------
+* Creating :c:data:`immutable types <Py_TPFLAGS_IMMUTABLETYPE>` with mutable
+ bases was deprecated since 3.12 and now raises a :exc:`TypeError`.