Forward port release notes for 2.3.4 and 2.4.3

Author: Lukasa

HISTORY.rst

@@ -12,6 +12,28 @@ Release History
   than have those settings applied appropriately.
 
 
+2.4.3 (2017-01-27)
+------------------
+
+- Resolved issue where the ``HTTP2-Settings`` header value for plaintext
+  upgrade that was emitted by ``initiate_upgrade_connection`` included the
+  *entire* ``SETTINGS`` frame, instead of just the payload.
+- Resolved issue where the ``HTTP2-Settings`` header value sent by a client for
+  plaintext upgrade would be ignored by ``initiate_upgrade_connection``, rather
+  than have those settings applied appropriately.
+
+
+2.3.4 (2017-01-27)
+------------------
+
+- Resolved issue where the ``HTTP2-Settings`` header value for plaintext
+  upgrade that was emitted by ``initiate_upgrade_connection`` included the
+  *entire* ``SETTINGS`` frame, instead of just the payload.
+- Resolved issue where the ``HTTP2-Settings`` header value sent by a client for
+  plaintext upgrade would be ignored by ``initiate_upgrade_connection``, rather
+  than have those settings applied appropriately.
+
+
 2.5.1 (2016-12-17)
 ------------------