- Implemented `event_handling_duration_seconds` metric, which is the time the scheduler takes to handle each kind of events. ([#125929](https://github.com/kubernetes/kubernetes/pull/125929), [@sanposhiho](https://github.com/sanposhiho))

- Because of the implementation logic of `time.Format` in golang, the displayed time zone is not consistent. ([#102366](https://github.com/kubernetes/kubernetes/pull/102366), [@cndoit18](https://github.com/cndoit18))

* Fix watch to not send the same set of events multiple times causing watcher to go back in time ([#73845](https://github.com/kubernetes/kubernetes/pull/73845), [@wojtek-t](https://github.com/wojtek-t))

* Update Cluster Autoscaler to version 1.3.7. ([#74136](https://github.com/kubernetes/kubernetes/pull/74136), [@jkaniuk](https://github.com/jkaniuk))
* Fix watch to not send the same set of events multiple times causing watcher to go back in time ([#73845](https://github.com/kubernetes/kubernetes/pull/73845), [@wojtek-t](https://github.com/wojtek-t))

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    }\n  }\n  @include deprecate(\"The `make-container-max-widths` mixin\", \"v4.5.2\", \"v5\");\n}\n\n@mixin make-col-ready($gutter: $grid-gutter-width) {\n  position: relative;\n  // Prevent columns from becoming too narrow when at smaller grid tiers by\n  // always setting `width: 100%;`. This works because we use `flex` values\n  // later on to override this initial width.\n  width: 100%;\n  padding-right: $gutter * .5;\n  padding-left: $gutter * .5;\n}\n\n@mixin make-col($size, $columns: $grid-columns)...

  - Clone `kubernetes/kubernetes` in `update-vendor.sh` shallowly, instead of fetching all revisions
  - Speed up binpacking by reducing the number of PreFilter calls (call once per pod instead of #pods*#nodes times)
  - Speed up finding unneeded nodes by 5x+ in very large clusters by reducing the number of PreFilter calls
  - Expose `--max-nodes-total` as a metric

### Feature

- Kubeadm: generate CA certificates with a start time that is offset 5 minutes in the past relative to the current system time to workaround cases of clock desync.

make-col-ready() {\n  // Add box sizing if only the grid is loaded\n  box-sizing: if(variable-exists(include-column-box-sizing) and $include-column-box-sizing, border-box, null);\n  // Prevent columns from becoming too narrow when at smaller grid tiers by\n  // always setting `width: 100%;`. This works because we set the width\n  // later on to override this initial width.\n  flex-shrink: 0;\n  width: 100%;\n  max-width: 100%; // Prevent `.col-auto`, `.col` (& responsive variants) from breaking out...