Added items about significant subclass bugfixes.
diff --git a/Misc/NEWS b/Misc/NEWS
index b282559..518e809 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -3,6 +3,16 @@
Core
+- In 2.2a3, hash() applied to an instance of a subclass of str or unicode
+ always returned 0. This has been repaired.
+
+- In 2.2a3, an operation on an instance of a subclass of an immutable type
+ (int, long, float, complex, tuple, str, unicode), where the subtype
+ didn't override the operation (and so the operation was handled by the
+ builtin type), could return that instance instead a value of the base
+ type. For example, if s was of a str sublass type, s[:] returned s
+ as-is. Now it returns a str with the same value as s.
+
Library
- operator.indexOf() (PySequence_Index() in the C API) now works with any