Contour 1.4 adds support for client certificate authentication to HTTPProxy objects. Additionally, some Ingress behaviors are fixed - Ingress addresses are now recorded correctly, and Contour's `--ingress-class` argument behaves more as you would expect.
Contour 1.2 includes support for certificate rotation for xDS gRPC interface between Contour and Envoy. Additionally, Contour 1.2 assists in Envoy rollouts in your cluster to minimize the number of connection errors.
As part of the preparations to deliver Contour 1.0 at KubeCon US, Contour 1.0.0-beta.1 (available now!) renamed the IngressRoute CRD to HTTPProxy.
This post explains the path from IngressRoute to HTTPProxy and why the change isn’t a revolution but an evolution.