Update whatsnew for NEWS entries through May 5th.
diff --git a/Doc/whatsnew/3.1.rst b/Doc/whatsnew/3.1.rst
index 6c0d45d..36625ad 100644
--- a/Doc/whatsnew/3.1.rst
+++ b/Doc/whatsnew/3.1.rst
@@ -94,10 +94,13 @@
'1,234,567'
>>> format(1234567.89, ',.2f')
'1,234,567.89'
+ >>> format(12345.6 + 8901234.12j, ',f')
+ '12,345.600000+8,901,234.120000j'
>>> format(Decimal('1234567.89'), ',f')
'1,234,567.89'
-The supported types are :class:`int`, :class:`float` and :class:`decimal.Decimal`.
+The supported types are :class:`int`, :class:`float`, :class:`complex`
+and :class:`decimal.Decimal`.
Discussions are underway about how to specify alternative separators
like dots, spaces, apostrophes, or underscores. Locale-aware applications
@@ -397,11 +400,16 @@
(Contributed by Antoine Pitrou and Amaury Forgeot d'Arc, :issue:`4868`.)
* The :mod:`json` module is getting a C extension to substantially improve
- its performance. The code is expected to be added in-time for the beta
- release.
+ its performance. In addition, the API was modified so that json works
+ only with :class:`str`, not with :class:`bytes`. That change makes the
+ module more closely conform to the `JSON specification <http://json.org/>`_
+ which is defined in terms of Unicode.
+ (Contributed by Bob Ippolito and converted to Py3.1 by Antoine Pitrou
+ and Benjamin Peterson; :issue:`4136`.)
- (Contributed by Bob Ippolito and converted to Py3.1 by Antoine Pitrou;
- :issue:`4136`.)
+* Unpickling now interns the attribute names of pickled objects. This saves
+ memory and allows pickles to be smaller.
+ (Contributed by Jake McGuire and Antoine Pitrou; :issue:`5084`.)
Build and C API Changes
=======================