- Fix: initial delay in mounting azure disk & file ([#93052](https://github.com/kubernetes/kubernetes/pull/93052), [@andyzhangx](https://github.com/andyzhangx)) [SIG Cloud Provider and Storage]
- Fixed a performance issue applying json patches to deeply nested objects ([#93813](https://github.com/kubernetes/kubernetes/pull/93813), [@liggitt](https://github.com/liggitt)) [SIG API Machinery, CLI, Cloud Provider and Cluster Lifecycle]

### API Change

- Kubernetes 1.23 is now built with go1.19.4. To match behavior of previous Kubernetes 1.23 patch releases:
  - `kube-apiserver` defaults the GOGC setting to 63, to approximate go1.17 garbage collection memory performance in heavily loaded API servers

    } else {
      return new ImmutableSortedMap<>(ImmutableSortedSet.emptySet(comparator), ImmutableList.of());
    }
  }

  /**
   * Returns the empty sorted map.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   */
  @SuppressWarnings("unchecked")
  // unsafe, comparator() returns a comparator on the specified type

Contributor. If that Commercial Contributor then makes performance
claims, or offers warranties related to Product X, those performance
claims and warranties are such Commercial Contributor's responsibility
alone. Under this section, the Commercial Contributor would have to
defend claims against the other Contributors related to those performance
claims and warranties, and if a court requires any other Contributor to

* **Safer** types.
* Better **performance** and **less energy** consumption.
* Better **extensibility**.
* etc.

...all this while keeping the **same Python API**. In most of the cases, for simple models, you can simply upgrade the Pydantic version and get all the benefits. 🚀

In some cases, for pure data validation and processing, you can get performance improvements of **20x** or more. This means 2,000% or more. 🤯

* custom resources that use unconventional pluralization now work properly with kubectl and garbage collection ([#50012](https://github.com/kubernetes/kubernetes/pull/50012), [@deads2k](https://github.com/deads2k))

      SortedMap<K, V> unfiltered, Predicate<? super K> keyPredicate) {
    // TODO(lowasser): Return a subclass of FilteredKeyMap for slightly better performance.
    return filterEntries(unfiltered, keyPredicateOnEntries(keyPredicate));
  }

  /**
   * Returns a navigable map containing the mappings in {@code unfiltered} whose keys satisfy a

      SortedMap<K, V> unfiltered, Predicate<? super K> keyPredicate) {
    // TODO(lowasser): Return a subclass of FilteredKeyMap for slightly better performance.
    return filterEntries(unfiltered, keyPredicateOnEntries(keyPredicate));
  }

  /**
   * Returns a navigable map containing the mappings in {@code unfiltered} whose keys satisfy a

- The SchedulerAsyncAPICalls feature gate has been disabled to mitigate a bug where its interaction with asynchronous preemption in could degrade kube-scheduler performance, particularly under high kube-apiserver load. ([#134401](https://github.com/kubernetes/kubernetes/pull/134401), [@macsko](https://github.com/macsko)) [SIG Scheduling]

### Other (Cleanup or Flake)

			Claims:          cred.Claims,
		}) {
			wr = true
		}

		return rd, wr
	}
	return isAllowedAccess(bucketName)
}

// ObjectSpeedTestHandler - reports maximum speed of a cluster by performing PUT and
// GET operations on the server, supports auto tuning by default by automatically
// increasing concurrency and stopping when we have reached the limits on the
// system.