Update to 3.6.4

diff --git a/Include/patchlevel.h b/Include/patchlevel.h
index 5fb1205..e909bb2 100644
--- a/Include/patchlevel.h
+++ b/Include/patchlevel.h

@@ -19,11 +19,11 @@
 #define PY_MAJOR_VERSION	3
 #define PY_MINOR_VERSION	6
 #define PY_MICRO_VERSION	4
-#define PY_RELEASE_LEVEL	PY_RELEASE_LEVEL_GAMMA
-#define PY_RELEASE_SERIAL	1
+#define PY_RELEASE_LEVEL	PY_RELEASE_LEVEL_FINAL
+#define PY_RELEASE_SERIAL	0
 
 /* Version as a string */
-#define PY_VERSION      	"3.6.4rc1"
+#define PY_VERSION      	"3.6.4"
 /*--end constants--*/
 
 /* Version as a single 4-byte hex number, e.g. 0x010502B2 == 1.5.2b2.

diff --git a/README.rst b/README.rst
index b608dc8..05c31da 100644
--- a/README.rst
+++ b/README.rst

@@ -1,5 +1,5 @@
-This is Python version 3.6.4 candidate 1
-========================================
+This is Python version 3.6.4
+============================
 
 .. image:: https://travis-ci.org/python/cpython.svg?branch=3.6
    :alt: CPython build status on Travis CI