- Implemented logging and event recording for probe results with an `Unknown` status in the kubelet's prober module. This helped improve the diagnosis and monitoring of cases where container probes returned an `Unknown` result, enhancing the observability and reliability of health checks. ([#125901](https://github.com/kubernetes/kubernetes/pull/125901), [@jralmaraz](https://github.com/jralmaraz))

- cloud.google.com/go/maps: v0.7.0 → v1.4.0
- cloud.google.com/go/mediatranslation: v0.7.0 → v0.8.1
- cloud.google.com/go/memcache: v1.9.0 → v1.10.1
- cloud.google.com/go/metastore: v1.10.0 → v1.12.0
- cloud.google.com/go/monitoring: v1.13.0 → v1.15.1
- cloud.google.com/go/networkconnectivity: v1.11.0 → v1.12.1
- cloud.google.com/go/networkmanagement: v1.6.0 → v1.8.0
- cloud.google.com/go/networksecurity: v0.8.0 → v0.9.1

- cloud.google.com/go/mediatranslation: v0.8.1 → v0.8.4
- cloud.google.com/go/memcache: v1.10.1 → v1.10.4
- cloud.google.com/go/metastore: v1.12.0 → v1.13.3
- cloud.google.com/go/monitoring: v1.15.1 → v1.17.0
- cloud.google.com/go/networkconnectivity: v1.12.1 → v1.14.3
- cloud.google.com/go/networkmanagement: v1.8.0 → v1.9.3
- cloud.google.com/go/networksecurity: v0.9.1 → v0.9.4

- Enabled concurrent log rotation in kubelet. You can now configure the maximum number of concurrent rotations with the `containerLogMaxWorkers` setting, and adjust the monitoring interval with `containerLogMonitorInterval`. ([#114301](https://github.com/kubernetes/kubernetes/pull/114301), [@harshanarayana](https://github.com/harshanarayana))
- Graduated pod scheduling gates to general availability.

  - `http_404_request_duration_ms` (the amount of time the server took to respond in ms)

  Also includes percentile groupings. The directory for the default 404 handler includes instructions on how to enable prometheus for monitoring and setting alerts.
  ([#79106](https://github.com/kubernetes/kubernetes/pull/79106), [@vbannai](https://github.com/vbannai))

### Instrumentation

    *   reflector_short_watches_total
    *   reflector_watch_duration_seconds
    *   reflector_watches_total
    * While this is a backwards-incompatible change, it would have been impossible to setup reliable monitoring around these metrics since the labels were not stable. 



# v1.13.4

[Documentation](https://docs.k8s.io)

## Downloads for v1.13.4


filename | sha512 hash
-------- | -----------

- cloud.google.com/go/maps: v0.7.0
- cloud.google.com/go/mediatranslation: v0.7.0
- cloud.google.com/go/memcache: v1.9.0
- cloud.google.com/go/metastore: v1.10.0
- cloud.google.com/go/monitoring: v1.13.0
- cloud.google.com/go/networkconnectivity: v1.11.0
- cloud.google.com/go/networkmanagement: v1.6.0
- cloud.google.com/go/networksecurity: v0.8.0
- cloud.google.com/go/notebooks: v1.8.0

### **Instrumentation**
#### Core Metrics API
* [alpha] Introduces a lightweight monitoring component for serving the core resource metrics API used by the Horizontal Pod Autoscaler and other components ([kubernetes/features#271](https://github.com/kubernetes/enhancements/issues/271))


### **Internationalization**

    *   reflector_short_watches_total
    *   reflector_watch_duration_seconds
    *   reflector_watches_total
    * While this is a backwards-incompatible change, it would have been impossible to setup reliable monitoring around these metrics since the labels were not stable. 

    *   reflector_short_watches_total
    *   reflector_watch_duration_seconds
    *   reflector_watches_total
    * While this is a backwards-incompatible change, it would have been impossible to setup reliable monitoring around these metrics since the labels were not stable. 
* Fix keymutex issues which may crash in some platforms. ([#74386](https://github.com/kubernetes/kubernetes/pull/74386), [@danielqsj](https://github.com/danielqsj))