Sourced from cryptography's changelog.

48.0.1 - 2026-06-09

* Updated Windows, macOS, and Linux wheels to be compiled with OpenSSL 4.0.1.
.. _v48-0-0:
48.0.0 - 2026-05-04

• BACKWARDS INCOMPATIBLE: Support for Python 3.8 has been removed. cryptography now requires Python 3.9 or later.

• BACKWARDS INCOMPATIBLE: Loading an X.509 CRL whose inner TBSCertList.signature algorithm does not match the outer signatureAlgorithm now raises ValueError. Previously, such CRLs were parsed successfully and only rejected during signature validation.

• Added support for :doc:/hazmat/primitives/asymmetric/mlkem and :doc:/hazmat/primitives/asymmetric/mldsa when using OpenSSL 3.5.0 or later, in addition to the existing AWS-LC and BoringSSL support. This means post-quantum algorithms are now available to users of our wheels.

  • Note: Going forward, we do not guarantee that all functionality in cryptography will be available when building against OpenSSL. See :doc:/statements/state-of-openssl for more information.

.. _v47-0-0:

47.0.0 - 2026-04-24

* Support for Python 3.8 is deprecated and will be removed in the next
  ``cryptography`` release.
* **BACKWARDS INCOMPATIBLE:** Support for binary elliptic curves
  (``SECT*`` classes) has been removed. These curves are rarely used and
  have additional security considerations that make them undesirable.
* **BACKWARDS INCOMPATIBLE:** Support for OpenSSL 1.1.x has been removed.
  OpenSSL 3.0.0 or later is now required. LibreSSL, BoringSSL, and AWS-LC
  continue to be supported.
* **BACKWARDS INCOMPATIBLE:** Dropped support for LibreSSL < 4.1.
* **BACKWARDS INCOMPATIBLE:** Loading keys with unsupported algorithms or
  keys with unsupported explicit curve encodings now raises
  :class:`~cryptography.exceptions.UnsupportedAlgorithm` instead of
  ``ValueError``. This change affects
  :func:`~cryptography.hazmat.primitives.serialization.load_pem_private_key`,
  :func:`~cryptography.hazmat.primitives.serialization.load_der_private_key`,
  :func:`~cryptography.hazmat.primitives.serialization.load_pem_public_key`,
  :func:`~cryptography.hazmat.primitives.serialization.load_der_public_key`,
  and :meth:`~cryptography.x509.Certificate.public_key` when called on
  certificates with unsupported public key algorithms.
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• de987ce 48.0.1 version bump and changelog (#14996)
• 8e03e30 bump for 48.0.0 release (#14796)
• 295e0d2 Add AGENTS.md with CLAUDE.md symlink (#14794)
• 104a2de Bump BoringSSL, OpenSSL, AWS-LC in CI (#14793)
• 67ec1e5 call check_length early on AesSiv::encrypt (#14792)
• b2da57a changelog for mldsa/mlkem for openssl (#14791)
• 3cf44ad ML-KEM OpenSSL support (#14781)
• 2e31639 ML-DSA OpenSSL support (#14773)
• 5affe5a fix rust nightly clippy (#14790)
• 2e73ca4 bump rust-openssl dep and update EcPoint::mul_generator to mul_generator2 (#1...
• Additional commits viewable in compare view