Traefik has rolled out v3.7.11, a patch release focused on stability and correctness for users running Kubernetes Gateway API and those relying on precise log output. This update is part of the maintained v3.7 branch, addressing issues without introducing breaking changes, making it a safe upgrade for production environments.
The release includes several targeted fixes that resolve edge cases reported by the community:
- Gateway API Compatibility: Fixed a panic when using
HTTPRoutewithRequestRedirectand aportvalue of0. Previously, this could crash the controller; now it correctly ignores the invalid port, aligning with the Gateway API spec. - Logging Correctness: Adjusted the log level for
acmecertificate renewal failures, ensuring they appear at the error level instead of being underreported. This improves observability when certificate renewals fail. - Log Formatting: Fixed a missing space in the access log
Refererfield when using the JSON or logfmt formats, which previously could merge the value with the next field. - Headers Middleware: Corrected the handling of
X-Forwarded-*headers in theforwardedmiddleware whentrustedIPsis set, preventing potential spoofing in certain proxy setups. - Provider Internal Fixes: Applied minor updates to the Kubernetes Ingress provider’s internal resource handling, reducing unnecessary API calls and improving performance for large clusters.
For developers, installing this update is straightforward:
# Using the official Docker image
docker pull traefik:v3.7.11
# Or via Helm
helm upgrade traefik traefik/traefik --namespace traefik --set image.tag=v3.7.11
Why this matters: While v3.7.11 is a patch release without new features, its fixes directly address reliability in critical paths like certificate renewal and Gateway API routing. If you rely on these features—especially with HTTPRoute redirects or custom logging pipelines—this update removes subtle bugs that could lead to outages or misdiagnosed errors. Upgrading is low-risk and recommended for all v3.7 users.
Source: https://github.com/traefik/traefik/releases/tag/v3.7.11