openssl

OpenSSL 4.0 Released with ECH Support and Significant Legacy Code Removal

OpenSSL 4.0 introduces Encrypted Client Hello support, removes SSLv3, and implements extensive changes to APIs, TLS, and FIPS-related features.

OpenSSL 3.6.2 fixes eight security issues, including flaws affecting RSA KEM, AES-CFB-128, DANE client code, CMS, and delta CRL handling.

OpenSSL 3.6.1 is out with fixes for multiple high-severity vulnerabilities affecting TLS, PKCS12, CMS, and certificate handling.

OpenSSL 3.6 adds LMS signatures, new FIPS features, and advanced key management tools for modern cryptography.

OpenSSL 3.5 introduces major crypto updates, including PQC support, server-side QUIC, and new TLS defaults.

OpenSSL 3.4 brings new cryptographic features, including integrity-only cipher suites for TLS 1.3, ECC optimizations, and FIPS provider updates.

LibreSSL 4.0 introduces portable changes, bug fixes, and internal cleanups. Now supporting OpenBSD 7.6, improving TLS, X.509, and RSA key handling.

OpenSSL introduces a new governance model & projects to enhance community participation and decision-making.

OpenSSL 3.3 debuts with advanced QUIC features, improved API functions, new cryptographic options, and more.

OpenSSL 3.0 is now available for download as a major update to this widely-used cryptography and SSL/TLS toolkit.