istio.io/istio@v0.0.0-20240520182934-d79c90f27776/releasenotes/notes/http2-probes.yaml (about)

     1  apiVersion: release-notes/v2
     2  kind: feature
     3  area: traffic-management
     4  issues:
     5  - 40173
     6  releaseNotes:
     7  - |
     8    **Added** support for ALPN negotiation to Istio [health checks](https://istio.io/latest/docs/ops/configuration/mesh/app-health-check/), mirroring
     9    how Kubelet functions. This allows `HTTPS` type probes to use HTTP2. To revert to the old behavior, which always used HTTP/1.1, the `ISTIO_ENABLE_HTTP2_PROBING=false` variable can be set.