Sourced from cryptography's changelog.

43.0.0 - 2024-07-20

* **BACKWARDS INCOMPATIBLE:** Support for OpenSSL less than 1.1.1e has been
  removed.  Users on older version of OpenSSL will need to upgrade.
* **BACKWARDS INCOMPATIBLE:** Dropped support for LibreSSL < 3.8.
* Updated Windows, macOS, and Linux wheels to be compiled with OpenSSL 3.3.1.
* Updated the minimum supported Rust version (MSRV) to 1.65.0, from 1.63.0.
* :func:`~cryptography.hazmat.primitives.asymmetric.rsa.generate_private_key`
  now enforces a minimum RSA key size of 1024-bit. Note that 1024-bit is still
  considered insecure, users should generally use a key size of 2048-bits.
* :func:`~cryptography.hazmat.primitives.serialization.pkcs7.serialize_certificates`
  now emits ASN.1 that more closely follows the recommendations in :rfc:`2315`.
* Added new :doc:`/hazmat/decrepit/index` module which contains outdated and
  insecure cryptographic primitives.
  :class:`~cryptography.hazmat.primitives.ciphers.algorithms.CAST5`,
  :class:`~cryptography.hazmat.primitives.ciphers.algorithms.SEED`,
  :class:`~cryptography.hazmat.primitives.ciphers.algorithms.IDEA`, and
  :class:`~cryptography.hazmat.primitives.ciphers.algorithms.Blowfish`, which were
  deprecated in 37.0.0, have been added to this module. They will be removed
  from the ``cipher`` module in 45.0.0.
* Moved :class:`~cryptography.hazmat.primitives.ciphers.algorithms.TripleDES`
  and :class:`~cryptography.hazmat.primitives.ciphers.algorithms.ARC4` into
  :doc:`/hazmat/decrepit/index` and deprecated them in the ``cipher`` module.
  They will be removed from the ``cipher`` module in 48.0.0.
* Added support for deterministic
  :class:`~cryptography.hazmat.primitives.asymmetric.ec.ECDSA` (:rfc:`6979`)
* Added support for client certificate verification to the
  :mod:`X.509 path validation <cryptography.x509.verification>` APIs in the
  form of :class:`~cryptography.x509.verification.ClientVerifier`,
  :class:`~cryptography.x509.verification.VerifiedClient`, and
  ``PolicyBuilder``
  :meth:`~cryptography.x509.verification.PolicyBuilder.build_client_verifier`.
* Added Certificate
  :attr:`~cryptography.x509.Certificate.public_key_algorithm_oid`
  and Certificate Signing Request
  :attr:`~cryptography.x509.CertificateSigningRequest.public_key_algorithm_oid`
  to determine the :class:`~cryptography.hazmat._oid.PublicKeyAlgorithmOID`
  Object Identifier of the public key found inside the certificate.
* Added :attr:`~cryptography.x509.InvalidityDate.invalidity_date_utc`, a
  timezone-aware alternative to the naïve ``datetime`` attribute
  :attr:`~cryptography.x509.InvalidityDate.invalidity_date`.
* Added support for parsing empty DN string in
  :meth:`~cryptography.x509.Name.from_rfc4514_string`.
* Added the following properties that return timezone-aware ``datetime`` objects:
  :meth:`~cryptography.x509.ocsp.OCSPResponse.produced_at_utc`,
  :meth:`~cryptography.x509.ocsp.OCSPResponse.revocation_time_utc`,
  :meth:`~cryptography.x509.ocsp.OCSPResponse.this_update_utc`,
  :meth:`~cryptography.x509.ocsp.OCSPResponse.next_update_utc`,
  :meth:`~cryptography.x509.ocsp.OCSPSingleResponse.revocation_time_utc`,
</tr></table> 

... (truncated)

• ebf14f2 bump for 43.0.0 and update changelog (#11311)
• 42788a0 Fix exchange with keys that had Q automatically computed (#11309)
• 2dbdfb8 don't assign unused name (#11310)
• ccc66e6 Bump openssl from 0.10.64 to 0.10.65 in /src/rust (#11308)
• 4310c87 Bump sphinxcontrib-qthelp from 1.0.7 to 1.0.8 (#11307)
• f66a9c4 Bump sphinxcontrib-htmlhelp from 2.0.5 to 2.0.6 (#11306)
• a8fcf18 Bump openssl-sys from 0.9.102 to 0.9.103 in /src/rust (#11305)
• 2fe32b2 Bump mypy from 1.10.1 to 1.11.0 (#11303)
• ee24e82 Bump setuptools from 71.0.3 to 71.0.4 in /.github/requirements (#11304)
• 7249ccd Bump portable-atomic from 1.6.0 to 1.7.0 in /src/rust (#11302)
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