OpenSSL has released version 4.1.0 Beta 1, which features native support for DTLS 1.3 and integration of NIST's finalized post-quantum algorithms, along with performance optimizations. The new version introduces several enhancements, including GREASE support, DTLS in the SSL listener API, and IKEv2 key derivation, while also removing outdated Windows targets and dependencies. This beta serves as a testing phase for the widely used cryptographic library, with the final product expected to enhance the security and performance of internet traffic. OpenSSL 4.1 is part of a feature release cycle, which focuses on adding capabilities rather than just security patches, and is intended for community testing before a stable launch

OpenSSL 4.1.0 Beta 1 Released: Adds DTLS 1.3 and Post-Quantum Support

OpenSSL 4.1.0-beta1 has been released for testing. The two headline additions are native DTLS 1.3 support (RFC 9147) and deeper integration of NIST's finalized post-quantum algorithms, backed by architecture-specific performance optimizations. Other new features include GREASE support, DTLS in the SSL listener API, IKEv2 key derivation, and initial Elbrus2000 CPU support, alongside breaking changes like dropped Windows targets and a tsget dependency swap.

OpenSSL 4.1.0 Beta 1 Released: Adds DTLS 1.3 and Post-Quantum Support @ Linux Compatible