Traefik Proxy 3.7 adds 85+ Ingress NGINX annotations, middlewares on services, and more

Traefik Proxy 3.7, code-named “Langres”, is now available as the latest release of this open-source HTTP reverse proxy and load balancer. The update brings multiple headline features, starting with the new certificates menu in the dashboard. This addition provides real-time visibility into all Transport Layer Security (TLS) certificates in use, the domains they protect, expiration dates, and their connections to both HTTP and TCP routers.

Users also benefit from expanded Kubernetes integrations. The Ingress NGINX provider now natively covers over 85 commonly used annotations, capturing over 90 percent of usage scenarios seen in real-world deployments. Additionally, the update delivers full compatibility with Gateway API version 1.5.1, the latest Kubernetes networking standard. Key extensions include the ability to set multiple certificate references on Gateway listeners, as well as secret support for BackendTLSPolicy.caCertificateRefs.

Following these advancements, Traefik 3.7 enables users to assign middlewares directly to service definitions; this assures that every router targeting a service inherits the same middleware configuration. In the realm of traffic resilience, the Retry middleware introduces support for retries based on HTTP response status codes, configurable per-attempt timeouts, and opt-in retrying of non-idempotent methods. The Failover service is now also able to respond to specific HTTP response codes. Various other enhancements and bug fixes round out the release.