- [alpha] Access Review APIs expose authorization engine to external inquiries for delegation, inspection, and debugging ([docs](http://kubernetes.io/docs/admin/authorization/)) ([kubernetes/features#37](https://github.com/kubernetes/enhancements/issues/37))
- **Cluster Lifecycle**

* Kubernetes now automatically installs a StorageClass object when deployed on ([#31617](https://github.com/kubernetes/kubernetes/pull/31617), [@jsafrane](https://github.com/jsafrane))
    * AWS, Google Compute Engine, Google Container Engine, and OpenStack using
    * the default kube-up.sh scripts. This StorageClass is marked as default so that
    * a PersistentVolumeClaim without a StorageClass annotation now results in

- In text format, log messages that previously used quoting to prevent multi-line output (for example, text="some \"quotation\", a\nline break") will now be printed with more readable multi-line output without the escape sequences. ([#107103](https://github.com/kubernetes/kubernetes/pull/107103), [@pohly](https://github.com/pohly))

    }

    @Override
    public Set<V> get(@ParametricNullness K key) {
      /*
       * Note that this doesn't return a SortedSet when delegate is a
       * SortedSetMultiset, unlike (SortedSet<V>) super.get().
       */
      return Collections.unmodifiableSet(delegate().get(key));
    }

    @Override
    public Set<Map.Entry<K, V>> entries() {

 - reach GA, and deprecate the beta, or
 - have a new beta version _(and deprecate the previous beta)_.

- GCE: bumped COS image version to `cos-beta-73-11647-64-0` ([#75149](https://github.com/kubernetes/kubernetes/pull/75149), [@yguo0905](https://github.com/yguo0905))
- Added alpha support for ephemeral CSI inline volumes that are embedded in pod specs. ([#74086](https://github.com/kubernetes/kubernetes/pull/74086), [@vladimirvivien](https://github.com/vladimirvivien))

          forwardCmp = (Comparator) Ordering.natural();
        }
        result = comparator = reverse(forwardCmp);
      }
      return result;
    }

    // If we inline this, we get a javac error.
    private static <T extends @Nullable Object> Ordering<T> reverse(Comparator<T> forward) {
      return Ordering.from(forward).reverse();
    }

    @Override

          forwardCmp = (Comparator) Ordering.natural();
        }
        result = comparator = reverse(forwardCmp);
      }
      return result;
    }

    // If we inline this, we get a javac error.
    private static <T extends @Nullable Object> Ordering<T> reverse(Comparator<T> forward) {
      return Ordering.from(forward).reverse();
    }

    @Override

- Reverts breaking change to inline AzureFile volumes in v1.18.15-v1.18.17; referenced secrets are now correctly searched for in the same namespace as the pod as in previous releases. ([#100397](https://github.com/kubernetes/kubernetes/pull/100397), [@andyzhangx](https://github.com/andyzhangx))...

### Promoted CSI Ephemeral Volume to Stable