## Changes by Kind

### API Change

- Aggregated discovery now returns `responseKind: {}` for resources which are missing group/version/kind information, to ensure compatibility with v0.26.0-v0.26.3 clients. ([#119835](https://github.com/kubernetes/kubernetes/pull/119835), [@liggitt](https://github.com/liggitt)) [SIG API Machinery and Testing]

### Feature

* Fixes `kubectl create secret docker-registry` compatibility ([#72344](https://github.com/kubernetes/kubernetes/pull/72344), [@liggitt](https://github.com/liggitt))

        Class.forName("org.conscrypt.Conscrypt\$Version", false, javaClass.classLoader)

        when {
          // Bump this version if we ever have a binary incompatibility
          Conscrypt.isAvailable() && atLeastVersion(2, 1, 0) -> true
          else -> false
        }
      } catch (e: NoClassDefFoundError) {
        false
      } catch (e: ClassNotFoundException) {

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* Fixes `kubectl create secret docker-registry` compatibility ([#72344](https://github.com/kubernetes/kubernetes/pull/72344), [@liggitt](https://github.com/liggitt))

## Changelog since v1.15.3

### Other notable changes

* Restores compatibility with kubectl client-side validation when structural schemas are present in a CRD which sets spec.preserveUnknownFields=true ([#82666](https://github.com/kubernetes/kubernetes/pull/82666), [@liggitt](https://github.com/liggitt))

### Workloads that saturate nodes with pods may see pods that fail due to node admission

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color: var(--#{$prefix}popover-body-color);\n}\n","// Notes on the classes:\n//\n// 1. .carousel.pointer-event should ideally be pan-y (to allow for users to scroll vertically)\n//    even when their scroll action started on a carousel, but for compatibility (with Firefox)\n//    we're preventing all actions instead\n// 2. The .carousel-item-start and .carousel-item-end is used to indicate where\n//    the active slide is heading.\n// 3. .active.carousel-item is the current slide.\n// 4. .active.carousel-item-start...

* kubeadm: notify the user of manifest upgrade timeouts ([#65164](https://github.com/kubernetes/kubernetes/pull/65164), [@xlgao-zju](https://github.com/xlgao-zju))
* Fixes incompatibility with custom scheduler extender configurations specifying `bindVerb` ([#65424](https://github.com/kubernetes/kubernetes/pull/65424), [@liggitt](https://github.com/liggitt))