- [Increase the Kubernetes support window to one year](#increase-the-kubernetes-support-window-to-one-year)
  - [Known Issues](#known-issues)
  - [Urgent Upgrade Notes](#urgent-upgrade-notes)
    - [(No, really, you MUST read this before you upgrade)](#no-really-you-must-read-this-before-you-upgrade)
  - [Changes by Kind](#changes-by-kind-16)
    - [Deprecation](#deprecation)

declaration-no-important\n\n// Contextual backgrounds\n\n@mixin bg-variant($parent, $color, $ignore-warning: false) {\n  #{$parent} {\n    background-color: $color !important;\n  }\n  a#{$parent},\n  button#{$parent} {\n    @include hover-focus() {\n      background-color: darken($color, 10%) !important;\n    }\n  }\n  @include deprecate(\"The `bg-variant` mixin\", \"v4.4.0\", \"v5\", $ignore-warning);\n}\n\n@mixin bg-gradient-variant($parent, $color, $ignore-warning: false) {\n  #{$parent} {\n    background:...

$container-max-width;\n      }\n\n      // Extend each breakpoint which is smaller or equal to the current breakpoint\n      $extend-breakpoint: true;\n\n      @each $name, $width in $grid-breakpoints {\n        @if ($extend-breakpoint) {\n          .container#{breakpoint-infix($name, $grid-breakpoints)} {\n            @extend %responsive-container-#{$breakpoint};\n          }\n\n          // Once the current breakpoint is reached, stop extending\n          @if ($breakpoint == $name) {\n            $extend-breakpoint:...

     */
    String getIndexFieldMimetype();

    /**
     * Get the value for the key 'index.field.parent_id'. <br>
     * The value is, e.g. parent_id <br>
     * comment: Field name for parent ID in the index.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getIndexFieldParentId();

    /**