Cloud Native Application Proxy Traefik has released the first release candidate for version 3.0.0. This major release includes support for emerging technologies such as WebAssembly (Wasm), OpenTelemetry, and Kubernetes Gateway API. In addition, the routing rules and security of Traefik have been improved with support for HTTP/3, SPIFFE, and Tailscale.

To ensure a smooth user experience during the migration from the previous version, Traefik provides a complete migration guide and offers backward compatibility with v2 syntax while introducing a progressive path for adopting the v3 syntax.

The enhancements in this release candidate include:

• Addition of weight on ServersLoadBalancer for Docker and service configurations
• Reloading of provider file configuration on SIGHUP
• Upgrade of gateway API to v1.0.0 for Kubernetes
• Support for cross-namespace references and GatewayAPI ReferenceGrants in Kubernetes Gateway API
• Introduction of static config hints for logs
• Removal of observability for internal resources in metrics, tracing, and access logs
• Support for sending DogStatsD metrics over Unix Socket in metrics
• Addition of forwardAuth.addAuthCookiesToResponse in middleware and authentication
• Implementation of the includedContentTypes option for the compress middleware
• Reintroduction of the deprecated IpWhitelist middleware
• Addition of ResponseCode to CircuitBreaker middleware
• Addition of the rejectStatusCode option to IPAllowList middleware
• Support for http-wasm plugin in Traefik
• Reintroduction of v2 rule matchers in rules
• Support for SO_REUSEPORT in EntryPoints for servers
• Support for setting sticky cookie max age in sticky-session
• Migration to OpenTelemetry in tracing and otel
• Reintroduction of dropped v2 dynamic config

The bug fixes in this release candidate include:

• Removal of warning in Kubernetes CRD provider about the supported version
• Fixing of OpenTelemetry unit tests in metrics
• Alignment of OpenTelemetry tracing and metrics configurations in middleware, authentication, metrics, and tracing
• Fixing of brotli response status code when compression is disabled in middleware
• Computing priority for HTTPS forwarder TLS routes in TLS and server configurations

Other changes in this release candidate include documentation updates, support for file path as input parameter for Kubernetes token value, disabling of br compression when no Accept-Encoding header is present in middleware, and merging of v2.11 into v3.0.

The latest version of the cloud native application proxy, Traefik, has been released. Version v2.10.5 brings several bug fixes and documentation updates to improve the functionality and user experience of the proxy.

Bug fixes in this release include:

• Move origin fields capture to service level
• Fix preflight response status in access logs
• Update go-acme/lego to v4.14.0
• Update go-acme/lego to v4.13.3
• Update quic-go to v0.37.5
• Update quic-go to v0.39.0
• Update quic-go to v0.37.6
• Update quic-go to v0.38.0
• Update quic-go to v0.38.1
• Ignore ErrKeyNotFound error for the KV provider
• Adjust forward auth to avoid connection leak
• Improve CNAME flattening to avoid unnecessary error logging
• Allow X-Forwarded-For delete operation
• Update x/net and grpc/grpc-go
• Add missing accessControlAllowOriginListRegex to middleware view
• Fix false positive in URL anonymization

Documentation updates in this release include:

• Change Arvancloud URL
• Correct minor typo in crd-acme docs
• Remove healthcheck interval configuration warning
• Docs describe the missing db parameter in Redis provider
• Doc fix accessControlAllowHeaders examples
• Updates business callout in the documentation

These bug fixes and documentation updates contribute to a smoother and more efficient experience for users of Traefik. The latest version can be downloaded from the official Traefik GitHub repository.