PyCA cryptography 39.0.1 has been released to PyPI. cryptography includes both high level recipes and low level interfaces to common cryptographic algorithms such as symmetric ciphers, asymmetric algorithms, message digests, X509, key derivation functions, and much more. We support Python 3.6+, and PyPy3. Changelog (https://cryptography.io/en/latest/changelog/#v39-0-1) * SECURITY ISSUE - Fixed a bug where Cipher.update_into accepted Python buffer protocol objects, but allowed immutable buffers. CVE-2023-23931 * Updated Windows, macOS, and Linux wheels to be compiled with OpenSSL 3.0.8. -Paul Kehrer (reaperhulk)