# istio_opencensus-removal.yaml
apiVersion: release-notes/v2
kind: feature
area: telemetry
releaseNotes:
  - |
    **Removed** OpenCensus support
upgradeNotes:
- title: OpenCensus support has been removed
  content: |
    Because Envoy has removed [OpenCensus tracing extension](https://www.envoyproxy.io/docs/envoy/latest/version_history/v1.33/v1.33.0.html#incompatible-behavior-changes), we have
    removed OpenCensus support from Istio. If you are using OpenCensus, you should migrate to OpenTelemetry.