bump version and set changelog date for 1.6 release (#3271)

diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index c99fcbd..649a806 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,10 +1,8 @@
 Changelog
 =========
 
-1.6 - `master`_
-~~~~~~~~~~~~~~~
-
-.. note:: This version is not yet released and is under active development.
+1.6 - 2016-11-22
+~~~~~~~~~~~~~~~~
 
 * Deprecated support for OpenSSL 1.0.0. Support will be removed in
   ``cryptography`` 1.7.
diff --git a/src/cryptography/__about__.py b/src/cryptography/__about__.py
index a056d79..923f2d9 100644
--- a/src/cryptography/__about__.py
+++ b/src/cryptography/__about__.py
@@ -14,7 +14,7 @@
                " and primitives to Python developers.")
 __uri__ = "https://github.com/pyca/cryptography"
 
-__version__ = "1.6.dev1"
+__version__ = "1.6"
 
 __author__ = "The cryptography developers"
 __email__ = "cryptography-dev@python.org"
diff --git a/vectors/cryptography_vectors/__about__.py b/vectors/cryptography_vectors/__about__.py
index 2280ce5..41f7c99 100644
--- a/vectors/cryptography_vectors/__about__.py
+++ b/vectors/cryptography_vectors/__about__.py
@@ -14,7 +14,7 @@
 
 __uri__ = "https://github.com/pyca/cryptography"
 
-__version__ = "1.6.dev1"
+__version__ = "1.6"
 
 __author__ = "The cryptography developers"
 __email__ = "cryptography-dev@python.org"