diff --git a/docs/changelog.rst b/docs/changelog.rst
index 819b426..aaca174 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -8,6 +8,8 @@
 
 * Added :doc:`/hazmat/backends/commoncrypto` with hash and HMAC support.
 * Added initial :doc:`/hazmat/bindings/commoncrypto`.
+* Removed `register_cipher_adapter` method from
+  :class:`~cryptography.hazmat.backends.interfaces.CipherBackend`.
 
 0.1 - 2014-01-08
 ~~~~~~~~~~~~~~~~