2.0 version bump and changelog (#3787)

* 2.0 version bump and changelog

* dates are just an illusion
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index aa0e2e9..563c32e 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,10 +1,8 @@
 Changelog
 =========
 
-2.0 - `master`_
-~~~~~~~~~~~~~~~
-
-.. note:: This version is not yet released and is under active development.
+2.0 - 2017-07-17
+~~~~~~~~~~~~~~~~
 
 * **BACKWARDS INCOMPATIBLE:** Support for Python 3.3 has been dropped.
 * We now ship ``manylinux1`` wheels linked against OpenSSL 1.1.0f. These wheels
diff --git a/src/cryptography/__about__.py b/src/cryptography/__about__.py
index 1573f69..4b4b6dd 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__ = "2.0.dev1"
+__version__ = "2.0"
 
 __author__ = "The cryptography developers"
 __email__ = "cryptography-dev@python.org"
diff --git a/vectors/cryptography_vectors/__about__.py b/vectors/cryptography_vectors/__about__.py
index 8a6b3ae..9ee01dd 100644
--- a/vectors/cryptography_vectors/__about__.py
+++ b/vectors/cryptography_vectors/__about__.py
@@ -14,7 +14,7 @@
 
 __uri__ = "https://github.com/pyca/cryptography"
 
-__version__ = "2.0.dev1"
+__version__ = "2.0"
 
 __author__ = "The cryptography developers"
 __email__ = "cryptography-dev@python.org"