traefik/traefik v2.6.0 on GitHub

Enhancements:

[acme] Allow configuration of ACME certificates duration (#8046 by pmontepagano)
[consul,consulcatalog] Support consul enterprise namespaces in consul catalog provider (#8592 by kevinpollet)
[k8s,k8s/gatewayapi] Update gateway api provider to v1alpha2 (#8535 by kevinpollet)
[k8s,k8s/gatewayapi] Support gateway api RouteNamespaces (#8299 by tomMoulard)
[k8s/crd] Support Kubernetes basic-auth secrets (#8189 by dtomcej)
[metrics] Add configurable tags to influxdb metrics (#8308 by Tetha)
[metrics] Add prefix to datadog metrics (#8234 by fredwangwang)
[middleware,tcp] Add in flight connection middleware (#8429 by tomMoulard)
[middleware] Add Organizational Unit to passtlscert middleware (#7958 by FernFerret)
[middleware] Allow configuration of minimum body size for compress middleware (#8239 by lus)
[middleware] Ceil Retry-After value in the rate-limit middleware (#8581 by pyaillet)
[middleware] Refactor Exponential Backoff (#7519 by danieladams456)
[server,k8s/crd,k8s] Allow configuration of HTTP/2 readIdleTimeout and pingTimeout (#8539 by tomMoulard)
[server] Allow configuration of advertised port for HTTP/3 (#8131 by valerauko)
[tracing] Upgrade Instana tracer and make process profiling configurable (#8334 by andriikushch)

Bug fixes:

[consul,kv] Support Consul KV Enterprise namespaces (#8692 by kevinpollet)
[consul] Support token authentication for Consul KV (#8712 by kevinpollet)
[consulcatalog] Configure Consul Catalog namespace at client level (#8725 by kevinpollet)
[tracing] Upgrade Instana tracer dependency (#8687 by andriikushch)
[logs] Redact credentials before logging (#8699 by ibrahimalihc)

Misc: