Traefik Proxy 3.4 adds rate-limiting with Redis, P2C load-balancing and custom server URLs

Traefik Labs has launched version 3.4 “Chaource” of its cloud-native application proxy, bringing distributed rate-limiting with Redis support. This allows administrators to enforce traffic rules globally across instances, stopping services from overusing bandwidth or abusing APIs, especially in multi-node setups. Alongside this, the Power of Two Choices (P2C) load balancer debuts, routing traffic by selecting two random backend candidates and directing requests to the least busy, minimizing overloads and bottlenecks when handling high volumes.

A long-requested update in this release is the ability to define server URLs via labels on Docker, Swarm, ECS, Consul, and Nomad, allowing users to configure custom URLs instead of relying only on a container’s IP. This expands flexibility for deployments across different orchestrators.

Traefik 3.4 also ships with several other enhancements. These include ACME improvements and updates for Kubernetes integration, support for sticky sessions, UDP routing, and TLS upgrades. Advanced users can now set rule priorities in Gateway API TLSRoute, alongside other general enhancements and bug fixes.