diff --git a/docs/hazmat/backends/common-crypto.rst b/docs/hazmat/backends/common-crypto.rst
index 6127116..af2032b 100644
--- a/docs/hazmat/backends/common-crypto.rst
+++ b/docs/hazmat/backends/common-crypto.rst
@@ -7,6 +7,8 @@
 
 .. currentmodule:: cryptography.hazmat.backends.commoncrypto.backend
 
+.. versionadded:: 0.2
+
 .. data:: cryptography.hazmat.backends.commoncrypto.backend
 
     This is the exposed API for the CommonCrypto backend. It has one public attribute.