- The kubelet plugin manager now properly handles plugin registration failures by removing failed plugins from the actual state and retrying with exponential backoff (initial delay 500ms, doubling each failure up to ~2 minutes maximum) to protect against broken plugins causing denial of service while still allowing recovery from transient failures. ([#133335](https://github.com/kubernetes/kubernetes/pull/133335), [@bart0sh](https://github.com/bart0sh)) [SIG Node, Storage and Testing]...

## Changes by Kind

### API Change

media-breakpoint-up($lower, $breakpoints) {\n      @content;\n    }\n  } @else if $min == null {\n    @include media-breakpoint-down($upper, $breakpoints) {\n      @content;\n    }\n  }\n}\n\n// Media between the breakpoint's minimum and maximum widths.\n// No minimum for the smallest breakpoint, and no maximum for the largest one.\n// Makes the @content apply only to the given breakpoint, not viewports any wider or narrower.\n@mixin media-breakpoint-only($name, $breakpoints: $grid-breakpoints) {\n  $min:  breakpoint-min($name,...

### Bug or Regression

- Fixed a bug where a high churn of events was causing master instability by reducing the maximum number of objects (events) attached to a single etcd lease. ([#100452](https://github.com/kubernetes/kubernetes/pull/100452), [@mborsz](https://github.com/mborsz)) [SIG API Machinery and Instrumentation]

$(SELECTOR_PRELOADER)\n      if ($preloader) {\n        $preloader.css('height', 0)\n        setTimeout(() => {\n          $preloader.children().hide()\n        }, 200)\n      }\n    }, this._config.preloadDuration)\n  }\n\n  _max(numbers) {\n    // Calculate the maximum number in a list\n    let max = 0\n\n    Object.keys(numbers).forEach(key => {\n      if (numbers[key] > max) {\n        max = numbers[key]\n      }\n    })\n\n    return max\n  }\n\n  _isFooterFixed() {\n    return $(SELECTOR_FOOTER).css('position')...

- Fixed runtime cost estimation for `x-int-or-string` custom resource schemas with maximum lengths. ([#132837](https://github.com/kubernetes/kubernetes/pull/132837), [@JoelSpeed](https://github.com/JoelSpeed))

elements are set to the zero value for the array element type.
It is an error to provide elements with index values outside the index range
of the array. The notation <code>...</code> specifies an array length equal
to the maximum element index plus one.
</p>

<pre>
buffer := [10]string{}             // len(buffer) == 10
intSet := [6]int{1, 2, 3, 5}       // len(intSet) == 6
days := [...]string{"Sat", "Sun"}  // len(days) == 2

The [dynamic maximum volume count](https://github.com/kubernetes/enhancements/issues/554) feature was also moved to beta. This enables a volume plugin to specify the maximum number of a given volume type per node as a function of the node characteristics (for example, a larger limit for larger nodes, a smaller limit for smaller nodes).

- The kube-proxy image contains `/go-runner` as a replacement for deprecated klog flags. ([#106301](https://github.com/kubernetes/kubernetes/pull/106301), [@pohly](https://github.com/pohly))
- The maximum length of the `CSINode` id field has increased to 256 bytes to match the CSI spec. ([#104160](https://github.com/kubernetes/kubernetes/pull/104160), [@pacoxu](https://github.com/pacoxu))

- Kubemark: added two flags, `--kube-api-qps` which indicates the maximum QPS to the apiserver, and `--kube-api-burst` which indicates maximum burst for throttle to the apiserver. ([#124147](https://github.com/kubernetes/kubernetes/pull/124147), [@devincd](https://github.com/devincd))