*
 * @author Charles Fry
 * @author Bob Lee ({@code com.google.common.collect.MapMaker})
 * @author Doug Lea ({@code ConcurrentHashMap})
 */
@SuppressWarnings({
  "GoodTime", // lots of violations (nanosecond math)
  "nullness", // too much trouble for the payoff
})
@GwtCompatible
@NullUnmarked // TODO(cpovirk): Annotate for nullness.

abs .nav-link {\n  margin-bottom: -1px;\n  background-color: transparent;\n  border: 1px solid transparent;\n  border-top-left-radius: 0.25rem;\n  border-top-right-radius: 0.25rem;\n}\n\n.nav-tabs .nav-link:hover, .nav-tabs .nav-link:focus {\n  isolation: isolate;\n  border-color: #e9ecef #e9ecef #dee2e6;\n}\n\n.nav-tabs .nav-link.disabled {\n  color: #6c757d;\n  background-color: transparent;\n  border-color: transparent;\n}\n\n.nav-tabs .nav-link.active,\n.nav-tabs .nav-item.show .nav-link {\n...

 border: var(--bs-nav-tabs-border-width) solid transparent;\n  border-top-left-radius: var(--bs-nav-tabs-border-radius);\n  border-top-right-radius: var(--bs-nav-tabs-border-radius);\n}\n.nav-tabs .nav-link:hover, .nav-tabs .nav-link:focus {\n  isolation: isolate;\n  border-color: var(--bs-nav-tabs-link-hover-border-color);\n}\n.nav-tabs .nav-link.disabled, .nav-tabs .nav-link:disabled {\n  color: var(--bs-nav-link-disabled-color);\n  background-color: transparent;\n  border-color: transparent;\n}\n.nav-tabs...

As an alpha feature, Kubernetes v1.22 can use the cgroups v2 API to control memory allocation and isolation. This feature is designed to improve workload and node availability when there is contention for memory resources.

### API changes and improvements for ephemeral containers

- Promoted `LocalStorageCapacityIsolation` to beta; the behaviour is enabled by default. Within the kubelet, storage capacity isolation is active if the feature gate is enabled and the specific Pod is using a user namespace. ([#126014](https://github.com/kubernetes/kubernetes/pull/126014), [@PannagaRao](https://github.com/PannagaRao)) [SIG Apps, Autoscaling, Node, Storage and Testing]...