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-rw-r--r--Misc/NEWS5
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diff --git a/Misc/NEWS b/Misc/NEWS
index d97193d..565c675 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -24,6 +24,11 @@ Type/class unification and new-style classes
(c) The __get__ method didn't check whether the argument was an
instance of the type used in creation of the super instance.
+- Previously, hash() of an instance of a subclass of a mutable type
+ (list or dictionary) would return some value, rather than raising
+ TypeError. This has been fixed. Also, directly calling
+ dict.__hash__ and list.__hash__ now raises the same TypeError
+ (previously, these were the same as object.__hash__).
Core and builtins