- Scheduler: in 1.29 pre-releases, enabling contextual logging slowed down pod scheduling. ([#121715](https://github.com/kubernetes/kubernetes/pull/121715), [@pohly](https://github.com/pohly)) [SIG Instrumentation and Scheduling]

- MaxUnavailable for StatefulSets, allows faster RollingUpdate by taking down more than 1 pod at a time. The number of pods you want to take down during a RollingUpdate is configurable using maxUnavailable parameter. ([#82162](https://github.com/kubernetes/kubernetes/pull/82162), [@krmayankk](https://github.com/krmayankk))

* Orphaned routes are properly removed from terminated instances. ([#56258](https://github.com/kubernetes/kubernetes/pull/56258), [@databus23](https://github.com/databus23))

* OpenStack Cinder will now detach properly when Nova is shut down. ([#56846](https://github.com/kubernetes/kubernetes/pull/56846), [@zetaab](https://github.com/zetaab))
### Scalability

- A new kubelet metric `image_pull_duration_seconds` was added. The metric tracks the duration (in seconds) it takes for an image to be pulled, including the time spent in the waiting queue of image puller. The metric is broken down by bucketed image size. ([#121719](https://github.com/kubernetes/kubernetes/pull/121719), [@ruiwen-zhao](https://github.com/ruiwen-zhao))

   ([#113329](https://github.com/kubernetes/kubernetes/pull/113329), [@RomanBednar](https://github.com/RomanBednar))
- '`registered_metric_total` will now report the number of metrics broken down by
  stability level and deprecated version.'
   ([#112907](https://github.com/kubernetes/kubernetes/pull/112907), [@logicalhan](https://github.com/logicalhan))

field and label selector information from requests in webhook authorization calls; adds an alpha AuthorizeNodeWithSelectors feature that makes the node authorizer limit requests from node API clients to get / list / watch its own Node API object, and to get / list / watch its own Pod API objects. Clients using kubelet credentials to read other nodes or unrelated pods must change their authentication credentials (recommended), adjust their usage, or grant broader read access independent of the node authorizer....

his._monthsShortStrictRegex:this._monthsShortRegex)},pt.week=function(e){return Ce(e,this._week.dow,this._week.doy).week},pt.firstDayOfYear=function(){return this._week.doy},pt.firstDayOfWeek=function(){return this._week.dow},pt.weekdays=function(e,a){var t=i(this._weekdays)?this._weekdays:this._weekdays[e&&!0!==e&&this._weekdays.isFormat.test(a)?"format":"standalone"];return!0===e?Ue(t,this._week.dow):e?t[e.day()]:t},pt.weekdaysMin=function(e){return!0===e?Ue(this._weekdaysMin,this._week.dow):e...

- Fix: Azure deallocating node should be regarded as shut down ([#92257](https://github.com/kubernetes/kubernetes/pull/92257), [@andyzhangx](https://github.com/andyzhangx)) [SIG Cloud Provider]

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