* Fix the Kubelet PLEG update timestamp to better reflect the health of the component when the container runtime request hangs. ([#45496](https://github.com/kubernetes/kubernetes/pull/45496), [@andyxning](https://github.com/andyxning))

* update QEMU version to v2.9.1 ([#50597](https://github.com/kubernetes/kubernetes/pull/50597), [@dixudx](https://github.com/dixudx))
* controllers backoff better in face of quota denial ([#49142](https://github.com/kubernetes/kubernetes/pull/49142), [@joelsmith](https://github.com/joelsmith))

- Service session affinity timeout tests are no longer required for Kubernetes network plugin conformance due to variations in existing implementations. New conformance tests will be developed to better express conformance in future releases. ([#112806](https://github.com/kubernetes/kubernetes/pull/112806), [@dcbw](https://github.com/dcbw)) [SIG Architecture, Network and Testing]

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

* Change docker metrics to conform metrics guidelines and using histogram for better aggregation. ([#72323](https://github.com/kubernetes/kubernetes/pull/72323), [@danielqsj](https://github.com/danielqsj))
    * The following metrics are deprecated, and will be removed in a future release:

- We’re working to simplify the Windows node join experience with better scripts and kubeadm. Scripts and doc updates are still in the works, but some of the needed improvements are included in 1.15.  These include:

","divisor","localStartOfDate","utcStartOfDate","matchEraAbbr","erasAbbrRegex","computeErasParse","abbrPieces","namePieces","narrowPieces","eras","narrow","_erasRegex","_erasNameRegex","_erasAbbrRegex","_erasNarrowRegex","addWeekYearFormatToken","getter","getSetWeekYearHelper","weeksTarget","dayOfYearData","erasNameRegex","erasNarrowRegex","erasParse","_eraYearOrdinalRegex","eraYearOrdinalParse","isoWeekYear","_dayOfMonthOrdinalParse","_ordinalParse","_dayOfMonthOrdinalParseLenient","getSetDayOf...

01BC          ; mapped                 ; 01BD          # 1.1  LATIN CAPITAL LETTER TONE FIVE
01BD..01C3    ; valid                                  # 1.1  LATIN SMALL LETTER TONE FIVE..LATIN LETTER RETROFLEX CLICK
01C4..01C6    ; mapped                 ; 0064 017E     # 1.1  LATIN CAPITAL LETTER DZ WITH CARON..LATIN SMALL LETTER DZ WITH CARON