v3.6.21

mattermost-community/focalboardv3.6.21Jun 10, 2026by github-actions[bot]

AI Summary

A Traefik release focusing on GatewayAPI and TLS fixes, including backend reference validation and SNI configuration corrections.

Key Highlights

  • Reject cross-provider references with backendRefs.namespace
  • Bump to github.com/pires/go-proxyproto v0.12.0
  • Fix routers with same host, different TLS options
  • Fix SNI check for routers with no hosts

Breaking Changes

  • Reject cross-provider references with backendRefs.namespace

New Features

  • GatewayAPI fixes
  • TLS router fixes
  • Dependency updates

Full Release Notes

**Bug fixes:**
- **[k8s/gatewayapi]** Reject cross-provider references with backendRefs.namespace ([#13322](https://github.com/traefik/traefik/pull/13322) @youkoulayley)
- **[server]** Bump to github.com/pires/go-proxyproto v0.12.0 ([#13313](https://github.com/traefik/traefik/pull/13313) @timschumi)
- **[tls]** Fix routers with same host, different tlsoptions on different entryPoint ([#13329](https://github.com/traefik/traefik/pull/13329) @juliens)
- **[tls]** Fix snicheck for routers with no hosts ([#13333](https://github.com/traefik/traefik/pull/13333) @rtribotte)