Update CHANGES for 1.21
@@ -4,6 +4,12 @@ Changes
dev (master)
------------
+* ... [Short description of non-trivial change.] (Issue #)
+
+
+1.21 (2017-04-25)
+-----------------
+
* Improved performance of certain selector system calls on Python 3.5 and
later. (Pull #1095)
@@ -28,6 +34,11 @@ dev (master)
* Added ``contrib`` module for using SecureTransport on macOS:
``urllib3.contrib.securetransport``. (Pull #1122)
+* urllib3 now only normalizes the case of ``http://`` and ``https://`` schemes:
+ for schemes it does not recognise, it assumes they are case-sensitive and
+ leaves them unchanged.
+ (Issue #1080)
+
* ... [Short description of non-trivial change.] (Issue #)
