response = client.get("/default1?level1=foo")
    assert response.json() == "foo"
    assert response.headers["content-type"] == "application/x-level-0"
    assert "x-level0" in response.headers
    assert "x-level1" not in response.headers
    assert "x-level2" not in response.headers
    assert "x-level3" not in response.headers
    assert "x-level4" not in response.headers
    assert "x-level5" not in response.headers

- The fallback behavior of the Downward API's `resourceFieldRef` field was updated to account for pod-level resources: if container-level limits were not set, pod-level limits were now used before falling back to node allocatable resources. ([#132605](https://github.com/kubernetes/kubernetes/pull/132605), [@toVersus](https://github.com/toVersus)) [SIG Node, Scheduling and Testing]

scalability testing in a continuous integration (CI) environment. The SIG
defined a concrete process for scalability testing, created
documentation for the current scalability thresholds, and defined a new set of
Service Level Indicators (SLIs) and Service Level Objectives (SLOs) for the system.
Here's the release [scalability validation report].

[SIG Scalability]: https://github.com/kubernetes/community/tree/master/sig-scalability

- Change `pod_preemption_victims` metric from Gauge to Histogram. ([#83603](https://github.com/kubernetes/kubernetes/pull/83603), [@Tabrizian](https://github.com/Tabrizian))
- Following metrics from kubelet are now marked as with the ALPHA stability level:
  `kubelet_container_log_filesystem_used_bytes`

    - [Deprecation of FlexVolume](#deprecation-of-flexvolume)
    - [Deprecation of klog specific flags](#deprecation-of-klog-specific-flags)
    - [Software Supply Chain SLSA Level 1 Compliance in the Kubernetes Release Process](#software-supply-chain-slsa-level-1-compliance-in-the-kubernetes-release-process)
    - [IPv4/IPv6 Dual-stack Networking graduates to GA](#ipv4ipv6-dual-stack-networking-graduates-to-ga)

// http://www.gobin.info/domainname/bw.doc
// list of other 2nd level tlds ?
bw
co.bw
org.bw

// by : https://www.iana.org/domains/root/db/by.html
// http://tld.by/rules_2006_en.html
// list of other 2nd level tlds ?
by
gov.by
mil.by
// Official information does not indicate that com.by is a reserved
// second-level domain, but it's being used as one (see www.google.com.by and

*   Added pod-level local ephemeral storage metric to the Summary API. Pod-level ephemeral storage reports the total filesystem usage for the containers and emptyDir volumes in the measured Pod. ([#55447](https://github.com/kubernetes/kubernetes/pull/55447),[ @jingxu97](https://github.com/jingxu97))...

### Other (Cleanup or Flake)

- Client-go header logging (at verbosity levels >= 9) now masks `Authorization` header contents ([#95316](https://github.com/kubernetes/kubernetes/pull/95316), [@sfowl](https://github.com/sfowl)) [SIG API Machinery]

## Dependencies

### Added
_Nothing has changed._

- In the API Priority and Fairness feature, priority levels that are exempt from limitation can now be given a nominal and a lendable concurrency and their dispatching borrows from the concurrency limits of the other priority levels.  For details see https://github.com/kubernetes/enhancements/tree/master/keps/sig-api-machinery/1040-priority-and-fairness#dispatching . ([#118782](https://gith...

- Changed the Pod API to support `hugepage resources` at `spec` level for pod-level resources. ([#130577](https://github.com/kubernetes/kubernetes/pull/130577), [@KevinTMtz](https://github.com/KevinTMtz)) [SIG Apps, CLI, Node, Scheduling, Storage and Testing]