diff --git a/Doc/copyright.rst b/Doc/copyright.rst
index 22d7705846e..2b5400cd9fb 100644
--- a/Doc/copyright.rst
+++ b/Doc/copyright.rst
@@ -4,7 +4,7 @@ Copyright
 
 Python and this documentation is:
 
-Copyright © 2001-2016 Python Software Foundation. All rights reserved.
+Copyright © 2001-2017 Python Software Foundation. All rights reserved.
 
 Copyright © 2000 BeOpen.com. All rights reserved.
 
diff --git a/Include/patchlevel.h b/Include/patchlevel.h
index c7dff541fc5..f06b6549e74 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	3
-#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      	"3.6.3rc1+"
+#define PY_VERSION      	"3.6.3"
 /*--end constants--*/
 
 /* Version as a single 4-byte hex number, e.g. 0x010502B2 == 1.5.2b2.
diff --git a/Misc/NEWS.d/3.6.3.rst b/Misc/NEWS.d/3.6.3.rst
new file mode 100644
index 00000000000..4d591d77ffe
--- /dev/null
+++ b/Misc/NEWS.d/3.6.3.rst
@@ -0,0 +1,27 @@
+.. bpo: 31641
+.. date: 2017-10-03-01-05-11
+.. nonce: vlQEq5
+.. release date: 2017-10-03
+.. section: Library
+
+Re-allow arbitrary iterables in `concurrent.futures.as_completed()`. Fixes
+regression in 3.6.3rc1.
+
+..
+
+.. bpo: 31662
+.. date: 2017-10-03-01-06-24
+.. nonce: 8l2jEz
+.. section: Build
+
+Fix typos in Windows ``uploadrelease.bat`` script. Fix Windows Doc build
+issues in ``Doc/make.bat``.
+
+..
+
+.. bpo: 31423
+.. date: 2017-10-03-01-01-52
+.. nonce: uKvPYA
+.. section: Build
+
+Fix building the PDF documentation with newer versions of Sphinx.
diff --git a/README.rst b/README.rst
index 2cb06d30f72..88a720010ed 100644
--- a/README.rst
+++ b/README.rst
@@ -1,5 +1,5 @@
-This is Python version 3.6.3 release candidate 1
-================================================
+This is Python version 3.6.3
+============================
 
 .. image:: https://travis-ci.org/python/cpython.svg?branch=3.6
    :alt: CPython build status on Travis CI
@@ -232,7 +232,8 @@ Copyright and License Information
 ---------------------------------
 
 Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011,
-2012, 2013, 2014, 2015, 2016 Python Software Foundation.  All rights reserved.
+2012, 2013, 2014, 2015, 2016, 2017 Python Software Foundation.  All rights
+reserved.
 
 Copyright (c) 2000 BeOpen.com.  All rights reserved.