- The 404 request handler for the GCE Ingress load balancer now exports prometheus metrics, including:

  - `http_404_request_total` (the number of 404 requests handled)
  - `http_404_request_duration_ms` (the amount of time the server took to respond in ms)

* Ensure Azure load balancer cleaned up on 404 or 403 when deleting LoadBalancer services. ([#75256](https://github.com/kubernetes/kubernetes/pull/75256), [@feiskyer](https://github.com/feiskyer))

pkg syscall (darwin-arm64), const SO_WANTOOBFLAG ideal-int
pkg syscall (darwin-arm64), const SYS_ACCEPT = 30
pkg syscall (darwin-arm64), const SYS_ACCEPT ideal-int
pkg syscall (darwin-arm64), const SYS_ACCEPT_NOCANCEL = 404
pkg syscall (darwin-arm64), const SYS_ACCEPT_NOCANCEL ideal-int
pkg syscall (darwin-arm64), const SYS_ACCESS = 33
pkg syscall (darwin-arm64), const SYS_ACCESS ideal-int

* Ensure Azure load balancer cleaned up on 404 or 403 when deleting LoadBalancer services. ([#75256](https://github.com/kubernetes/kubernetes/pull/75256), [@feiskyer](https://github.com/feiskyer))

- Resolves a potential issue with GC and NS controllers which may delete objects after getting a 404 response from the server during its startup. This PR ensures that requests to aggregated APIs will get 503, not 404 while the APIServiceRegistrationController hasn't finished its job. ([#104748](https://github.com/kubernetes/kubernetes/pull/104748), [@p0lyn0mial](https://github.com/p0lyn0mial))

* kube-apiserver: requests to endpoints handled by unavailable extension API servers (as indicated by an `Available` condition of `false` in the registered APIService) now return `503` errors instead of `404` errors. ([#58070](https://github.com/kubernetes/kubernetes/pull/58070), [@weekface](https://github.com/weekface))

- Updated k8s.gcr.io/ingress-gce-404-server-with-metrics-amd64 to a version that serves /metrics endpoint on a non-default port. ([#97621](https://github.com/kubernetes/kubernetes/pull/97621), [@vbannai](https://github.com/vbannai)) [SIG Cloud Provider]
- Updates the commands `

* Ensure Azure load balancer cleaned up on 404 or 403 when deleting LoadBalancer services. ([#75256](https://github.com/kubernetes/kubernetes/pull/75256), [@feiskyer](https://github.com/feiskyer))

* Return Audit-Id http response header for trouble shooting ([#49377](https://github.com/kubernetes/kubernetes/pull/49377), [@CaoShuFeng](https://github.com/CaoShuFeng))
* Status objects for 404 API errors will have the correct APIVersion ([#49868](https://github.com/kubernetes/kubernetes/pull/49868), [@shiywang](https://github.com/shiywang))

@app.get("/items/{item_id}")
def get_item(item_id: str, username: Annotated[str, Depends(get_username)]):
    if item_id not in data:
        raise HTTPException(status_code=404, detail="Item not found")
    item = data[item_id]
    if item["owner"] != username:
        raise OwnerError(username)
    return item
```

---