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-rw-r--r--docs/hazmat/primitives/mac/cmac.rst2
1 files changed, 2 insertions, 0 deletions
diff --git a/docs/hazmat/primitives/mac/cmac.rst b/docs/hazmat/primitives/mac/cmac.rst
index 69706bb7..a6b048b5 100644
--- a/docs/hazmat/primitives/mac/cmac.rst
+++ b/docs/hazmat/primitives/mac/cmac.rst
@@ -19,6 +19,8 @@ A subset of CMAC with the AES-128 algorithm is described in :rfc:`4493`.
.. class:: CMAC(algorithm, backend)
+ .. versionadded:: 0.4
+
CMAC objects take a
:class:`~cryptography.hazmat.primitives.interfaces.BlockCipherAlgorithm` provider.