v2.11.56 v3.7.12

high risk

nari-labs/dia2Aug 26, 2026 → Aug 26, 20260 days between releases

What's New

Major version upgrade to v3.7.12 with new CVE fixes and HTTP/3/TCP/UDP improvements.

Breaking Changes

  • Major version jump from v2 to v3 requires configuration changes per the migration guide.

New Features

  • Ingress-Nginx TLS option collision fix.

Improvements

  • Bumped github.com/valyala/fasthttp to v1.73.0.
  • Include filename in file provider configuration errors.
  • Fixed redirect www host with a non-numeric port.

Bug Fixes

  • Fixed new security advisory GHSA-cjr6-pf59-jq29.
  • Fixed typos in docs and an OCSP log message.

Upgrade Notes

This is a major version jump (v2 to v3), requiring a migration of configuration files and dependencies. Review the v3 migration guide for breaking changes. The specific HTTP/3 and TCP/UDP changes are compatible but require the v3 configuration format.

The Two Releases

v2.11.56

v2.11.56

Aug 26, 2026· 2 months ago

A patch release for Traefik v2.11 addressing specific security vulnerabilities and bug fixes, including HTTP/3 timeouts, entry point header handling, and TCP/UDP weight validation.

Full release notes
v3.7.12

v3.7.12

Aug 26, 2026· 2 months ago

This Traefik v3.7 release fixes multiple security vulnerabilities (CVEs) and updates HTTP/3, TCP/UDP, and etcd client modules with various bug fixes and documentation improvements.

Full release notes