Log Message:
Update to 0.5.2:

0.5.2 - 2014-07-09
~~~~~~~~~~~~~~~~~~

* Add
  \ 
:class:`~cryptography.hazmat.backends.interfaces.TraditionalOpenSSLSerialization \ 
Backend`
  support to :doc:`/hazmat/backends/multibackend`.
* Fix compilation error on OS X 10.8 (Mountain Lion).

0.5.1 - 2014-07-07
~~~~~~~~~~~~~~~~~~

* Add
  :class:`~cryptography.hazmat.backends.interfaces.PKCS8SerializationBackend`
  support to :doc:`/hazmat/backends/multibackend`.

0.5 - 2014-07-07
~~~~~~~~~~~~~~~~

* **BACKWARDS INCOMPATIBLE:**
  :class:`~cryptography.hazmat.primitives.ciphers.modes.GCM` no longer allows
  truncation of tags by default. Previous versions of ``cryptography`` allowed
  tags to be truncated by default, applications wishing to preserve this
  behavior (not recommended) can pass the ``min_tag_length`` argument.
* Windows builds now statically link OpenSSL by default. When installing a
  wheel on Windows you no longer need to install OpenSSL separately. Windows
  users can switch between static and dynamic linking with an environment
  variable. See :doc:`/installation` for more details.
* Added :class:`~cryptography.hazmat.primitives.kdf.hkdf.HKDFExpand`.
* Added :class:`~cryptography.hazmat.primitives.ciphers.modes.CFB8` support
  for :class:`~cryptography.hazmat.primitives.ciphers.algorithms.AES` and
  :class:`~cryptography.hazmat.primitives.ciphers.algorithms.TripleDES` on
  :doc:`/hazmat/backends/commoncrypto` and :doc:`/hazmat/backends/openssl`.
* Added ``AES`` :class:`~cryptography.hazmat.primitives.ciphers.modes.CTR`
  support to the OpenSSL backend when linked against 0.9.8.
* Added
  :class:`~cryptography.hazmat.backends.interfaces.PKCS8SerializationBackend`
  and
  \ 
:class:`~cryptography.hazmat.backends.interfaces.TraditionalOpenSSLSerialization \ 
Backend`
  support to the :doc:`/hazmat/backends/openssl`.
* Added :doc:`/hazmat/primitives/asymmetric/ec` and
  :class:`~cryptography.hazmat.backends.interfaces.EllipticCurveBackend`.
* Added :class:`~cryptography.hazmat.primitives.ciphers.modes.ECB` support
  for :class:`~cryptography.hazmat.primitives.ciphers.algorithms.TripleDES` on
  :doc:`/hazmat/backends/commoncrypto` and :doc:`/hazmat/backends/openssl`.
* Deprecated :class:`~cryptography.hazmat.primitives.asymmetric.rsa.RSAPrivateKey`
  in favor of backend specific providers of the
  :class:`~cryptography.hazmat.primitives.interfaces.RSAPrivateKey` interface.
* Deprecated :class:`~cryptography.hazmat.primitives.asymmetric.rsa.RSAPublicKey`
  in favor of backend specific providers of the
  :class:`~cryptography.hazmat.primitives.interfaces.RSAPublicKey` interface.
* Deprecated :class:`~cryptography.hazmat.primitives.asymmetric.dsa.DSAPrivateKey`
  in favor of backend specific providers of the
  :class:`~cryptography.hazmat.primitives.interfaces.DSAPrivateKey` interface.
* Deprecated :class:`~cryptography.hazmat.primitives.asymmetric.dsa.DSAPublicKey`
  in favor of backend specific providers of the
  :class:`~cryptography.hazmat.primitives.interfaces.DSAPublicKey` interface.
* Deprecated :class:`~cryptography.hazmat.primitives.asymmetric.dsa.DSAParameters`
  in favor of backend specific providers of the
  :class:`~cryptography.hazmat.primitives.interfaces.DSAParameters` interface.
* Deprecated ``encrypt_rsa``, ``decrypt_rsa``, ``create_rsa_signature_ctx`` and
  ``create_rsa_verification_ctx`` on
  :class:`~cryptography.hazmat.backends.interfaces.RSABackend`.
* Deprecated ``create_dsa_signature_ctx`` and ``create_dsa_verification_ctx``
  on :class:`~cryptography.hazmat.backends.interfaces.DSABackend`.