Merge pull request #608 from reaperhulk/cast5-changelog

Add CAST5 support to changelog
diff --git a/docs/changelog.rst b/docs/changelog.rst
index 4d459bd..cd289b6 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -18,6 +18,7 @@
 * Added :class:`~cryptography.hazmat.primitives.kdf.hkdf.HKDF`.
 * Added :doc:`/hazmat/backends/multibackend`.
 * Set default random for the :doc:`/hazmat/backends/openssl` to the OS random engine.
+* Added :class:`~cryptography.hazmat.primitives.ciphers.algorithms.CAST5` (CAST-128) support.
 
 0.1 - 2014-01-08
 ~~~~~~~~~~~~~~~~
diff --git a/docs/hazmat/primitives/symmetric-encryption.rst b/docs/hazmat/primitives/symmetric-encryption.rst
index 210e656..d91dde9 100644
--- a/docs/hazmat/primitives/symmetric-encryption.rst
+++ b/docs/hazmat/primitives/symmetric-encryption.rst
@@ -117,6 +117,8 @@
 
 .. class:: CAST5(key)
 
+    .. versionadded:: 0.2
+
     CAST5 (also known as CAST-128) is a block cipher approved for use in the
     Canadian government by the `Communications Security Establishment`_. It is
     a variable key length cipher and supports keys from 40-128 bits in length.