Download Latest Version Release v1.7.3 source code.tar.gz (4.8 MB)
Email in envelope

Get an email when there's a new version of s2n

Home / v1.7.2
Name Modified Size InfoDownloads / Week
Parent folder
README.md 2026-03-31 3.2 kB
Release_ v1.7.2 source code.tar.gz 2026-03-31 4.8 MB
Release_ v1.7.2 source code.zip 2026-03-31 9.1 MB
Totals: 3 Items   13.9 MB 0

Release summary

  • Removed s2n's internal DRBG and delegates randomness generation to libcrypto when supported.
  • Added the strict CNSA 2.0 TLS policy and a transitional policy from CNSA 1.0 to 2.0
  • mTLS TLS1.3 handshakes are ~4% faster

What's Changed

New Contributors

Full Changelog: https://github.com/aws/s2n-tls/compare/1.7.1...v1.7.2

Source: README.md, updated 2026-03-31