* To maintain this code, make a change for the strong reference type. Then, cut and paste, and
   * replace "Strong" with "Soft" or "Weak" within the pasted text. The primary difference is that
   * strong entries store the key reference directly while soft and weak entries delegate to their
   * respective superclasses.
   */

  /** Used for strongly-referenced keys. */

* Fixes a bug in the OpenStack-Heat kubernetes provider, in the handling of differences between the Identity v2 and Identity v3 APIs ([#40105](https://github.com/kubernetes/kubernetes/pull/40105), [@sc68cal](https://github.com/sc68cal))

### Container Images

* Kubernetes update Azure nsg rules based on not just difference in Name, but also in Protocol, SourcePortRange, DestinationPortRange, SourceAddressPrefix, DestinationAddressPrefix, Access, and Direction. ([#55752](https://github.com/kubernetes/kubernetes/pull/55752), [@kevinkim9264](https://github.com/kevinkim9264))...

If CSI Migration is working properly, Kubernetes end users shouldn’t notice a difference.
After migration, Kubernetes users may continue to rely on all the functionality of in-tree storage plugins using the existing interface.

The key updated docs are:

* Python Types Intro:

rem, #{divide($value, $rfs-rem-value)}rem, #{$value}px);\n        }\n        @else {\n          // Calculate the minimum value\n          $value-min: $rfs-base-value + divide(abs($value) - $rfs-base-value, $rfs-factor);\n\n          // Calculate difference between $value and the minimum value\n          $value-diff: abs($value) - $value-min;\n\n          // Base value formatting\n          $min-width: if($rfs-unit == rem, #{divide($value-min, $rfs-rem-value)}rem, #{$value-min}px);\n\n          //...

$enable-responsive-font-sizes {\n      font-size: #{$rfs-static}#{$rfs-suffix};\n    }\n    @else {\n      // Calculate the minimum font size for $fs\n      $fs-min: $rfs-base-font-size + divide($fs - $rfs-base-font-size, $rfs-factor);\n\n      // Calculate difference between $fs and the minimum font size\n      $fs-diff: $fs - $fs-min;\n\n      // Base font-size formatting\n      $min-width: if($rfs-font-size-unit == rem, #{divide($fs-min, $rfs-rem-value)}rem, #{$fs-min}px);\n\n      // Use `vmin` if two-dimensional...

$enable-responsive-font-sizes {\n      font-size: #{$rfs-static}#{$rfs-suffix};\n    }\n    @else {\n      // Calculate the minimum font size for $fs\n      $fs-min: $rfs-base-font-size + divide($fs - $rfs-base-font-size, $rfs-factor);\n\n      // Calculate difference between $fs and the minimum font size\n      $fs-diff: $fs - $fs-min;\n\n      // Base font-size formatting\n      $min-width: if($rfs-font-size-unit == rem, #{divide($fs-min, $rfs-rem-value)}rem, #{$fs-min}px);\n\n      // Use `vmin` if two-dimensional...