Traefik v3.6.11 released on 19-03-2026
Traefik v3.6.11 is out now. Operators and cluster administrators get tighter HTTP handling, improved TLS handshake robustness and a set of Kubernetes and observability fixes that reduce misrouting and make troubleshooting simpler.
See the release notes on the Traefik GitHub repository for full details and the complete changelog.
What’s in this release
- HTTP provider: new maxResponseBodySize option to limit how much of a response body Traefik captures.
- TLS: support for fragmented TLS ClientHello messages to improve handshake robustness with certain clients.
- Observability and Kubernetes fixes: access logs now include OpenTelemetry‑conformant trace context attributes, plus fixes for Gateway API hostname matching, an Ingress router rule and ingress‑nginx proxy‑ssl‑verify behaviour.
Upgrade notes
- No breaking changes are listed in the release notes; review HTTP provider settings if you rely on response body capture and check basic‑auth behaviour after upgrading.
- If you need to roll back, redeploy the previous Traefik version used in your environment and follow your usual rollback procedures.
Share any comments or experiences with the upgrade — they help others spot issues and save time.