Issue 4998: restore utility of __slots__ on Fraction.
(forward merge of r68813).
diff --git a/Misc/NEWS b/Misc/NEWS
index c31c1a7..33a1c98 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -163,6 +163,10 @@
Library
-------
+- Issue #4998: The memory saving effect of __slots__ had been lost on Fractions
+ which inherited from numbers.py which did not have __slots__ defined. The
+ numbers hierarchy now has its own __slots__ declarations.
+
- Issue #4631: Fix urlopen() result when an HTTP response uses chunked
encoding.