Sourced from cryptography's changelog.

43.0.1 - 2024-09-03

* Updated Windows, macOS, and Linux wheels to be compiled with OpenSSL 3.3.2.
.. _v43-0-0:
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• Added new :doc:/hazmat/decrepit/index module which contains outdated and insecure cryptographic primitives.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

... (truncated)

• a773387 bump for 43.0.1 (#11533)
• 0393fef Backport setuptools version ban (#11526)
• 6687bab Bump openssl from 0.10.65 to 0.10.66 in /src/rust (#11320) (#11324)
• 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)
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