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Version: 0.2.56

Release Notes

This page describes changes, fixes, and known issues for NoxTLS 0.2.56.

For source and binary artifacts, see Releases on GitHub.

Use the version dropdown in the navbar to view docs (and release notes) for other versions.

0.2.56​

Release date: 6/15/2026

Changes​

  • Project version updated to 0.2.56 in CMake and noxtls_version.h.
  • Static buffer pool bucket allocator: LEGACY, BUCKETS, and HYBRID modes (default HYBRID) with configurable size classes via NOXTLS_MEM_BUCKET_*.
  • noxtls_mem_get_bucket_stats() reports per-bucket block utilization and fallback pool usage.
  • ECC curve enum values renamed with NOXTLS_ECC_* prefix (e.g. NOXTLS_ECC_SECP256R1).
  • nRF52 AES hardware acceleration with hw-only fallback mode; STM32 and Cortex-M7 crypto path optimizations.
  • Embedded firmware size benchmark tooling (toolchains and scripts).
  • HMAC/HKDF split from the TLS stack; Ed25519 decoupled from bignum.

Fixed / Resolved​

  • crypto_only profile keeps PKC enabled.
  • LMS/HSS and XMSS certificate verification paths.
  • AES-CMAC calculation and AES internal header extern "C" linkage for C++ consumers.
  • DTLS embedded PSK-only handshakes and related DTLS fixes.
  • Security hardening across crypto and parser paths.

Known issues / Open​

  • DTLS 1.3 interop hardening continues against external test suites.