v4.2.0

Minor Changes

• 6761889: <rh-spinner>: added CSS custom properties for theme-based animation overrides. Added --rh-spinner-stroke-width, --rh-spinner-vector-effect, --rh-spinner-container-animation-name, --rh-spinner-container-animation-duration, --rh-spinner-container-animation-timing, --rh-spinner-animation-name, --rh-spinner-animation-duration, --rh-spinner-animation-timing, --rh-spinner-dash-array, --rh-spinner-dash-offset, --rh-spinner-rotate-start, and --rh-spinner-track-display.
  Includes felt-dash and felt-rotate keyframes in the shadow root for Felt theme compatibility.

• 6761889: ✨ Added <rh-scheme-dropdown>

  A scheme dropdown switches between light, dark, and system default color schemes.

  <rh-scheme-dropdown></rh-scheme-dropdown>

• 6761889: <rh-button>: added --rh-button-icon-color CSS custom property to allow theming the icon color independently from the button text color

• 6761889: <rh-subnav>: added new public CSS custom properties (--rh-subnav-link-padding-block, --rh-subnav-link-padding-inline, --rh-subnav-scroll-buttons-padding, --rh-subnav-scroll-buttons-border-block-end)

• 6761889: <rh-button>: added close variant background colors (--rh-button-close-active-background, --rh-button-close-focus-background, and --rh-button-close-hover-background) plus --rh-button-close-width and --rh-button-close-radius props, fix :focus/:active source-order specificity

• 6761889: <rh-jump-links>: added new CSS custom properties (--rh-jump-link-border, --rh-jump-link-link-border, --rh-jump-link-hover-background-color, --rh-jump-link-hover-border-radius, --rh-jump-link-max-width, --rh-jump-link-item-padding-block, --rh-jump-link-item-padding-inline, --rh-jump-link-link-padding-block, --rh-jump-link-link-padding-inline, --rh-jump-link-indicator-border-radius)

• 6761889: <rh-menu-item>: added new CSS custom properties (--rh-menu-item-border-radius, --rh-menu-item-focus-inset)

• 6761889: <rh-menu-dropdown>: added new CSS custom properties (--rh-menu-dropdown-panel-padding, --rh-menu-dropdown-panel-border-radius, --rh-menu-dropdown-panel-border, --rh-menu-dropdown-panel-background, --rh-menu-dropdown-panel-box-shadow, --rh-menu-dropdown-caret-size, --rh-menu-dropdown-toggle-border-color, --rh-menu-dropdown-toggle-background, --rh-menu-dropdown-hover-border-color, --rh-menu-dropdown-active-border-color, --rh-menu-dropdown-focus-border-color, --rh-menu-dropdown-open-border-color, --rh-menu-dropdown-disabled-box-shadow, --rh-menu-dropdown-compact-size, --rh-menu-dropdown-compact-justify, --rh-menu-dropdown-compact-disabled-background, --rh-menu-dropdown-compact-disabled-icon-color)

• 6761889: <rh-footer-universal>: added tertiary slot for social links and copyright. The previous slot pattern continues to work for backward compatibility.

  Migration

  1. Move <rh-footer-social-link> elements from slot="social-links" on <rh-footer> into a <rh-footer-links slot="tertiary"> inside <rh-footer-universal>.
  2. Move <rh-footer-copyright> from slot="links-secondary" to slot="tertiary" inside <rh-footer-universal>.

  <rh-footer-universal slot="universal">
    <!-- ...links-primary, links-secondary... -->
    <rh-footer-copyright slot="tertiary">&copy; 2026 Red Hat</rh-footer-copyright>
    <rh-footer-links slot="tertiary" role="list">
      <rh-footer-social-link icon="linkedin" href="..." accessible-label="LinkedIn"></rh-footer-social-link>
    </rh-footer-links>
  </rh-footer-universal>

• 6761889: <rh-accordion>: added new CSS custom properties (--rh-accordion-panel-padding-block-start, --rh-accordion-panel-padding-inline-end, --rh-accordion-panel-padding-block-end, --rh-accordion-panel-padding-inline-start)

• 6761889: <rh-scheme-toggle>: added the scheme-changed event that fires whenever a user changes the color scheme.

• 6761889: <rh-tab>: added --rh-tabs-link-* CSS custom properties for theming the inner tab link area (pill radius, padding, hover/focus backgrounds, focus outlines). Add --rh-tabs-box-border-color for box-style tab side borders.

  <rh-tabs>: added overflow-button, overflow-button previous, and overflow-button next CSS parts on the overflow scroll buttons. Add --rh-tabs-overflow-* CSS custom properties for overflow button padding, sizing, border radius, hover/focus backgrounds, and focus outlines.

• 6761889: <rh-pagination>: deprecated variant="open" in favor of variant="borderless".

  Before:

  <rh-pagination variant="open">
    ...
  </rh-pagination>

  After:

  <rh-pagination variant="borderless">
    ...
  </rh-pagination>

  NOTE: Even though deprecated, variant="open" will continue to work until the next major release.

• 6761889: <rh-tabs>: added support for icon and icon-set attributes to the <rh-tab> element

• 6761889: ✨ Added <rh-button-group>

  A button group visually organizes multiple related buttons into a single collection.

  <rh-button-group>
    <rh-button>Save</rh-button>
    <rh-button>Cancel</rh-button>
    <rh-button>Delete</rh-button>
  </rh-button-group>

• 6761889: <rh-switch>: added --rh-switch-show-check CSS custom property to control checkmark icon visibility, without requiring the show-check-icon attribute on each selected element

  .themed-container {
    --rh-switch-check-display: true;
  }

• 466eea1: <rh-navigation-primary>: Added two CSS custom properties allowing customization of menu padding: --rh-navigation-primary-item-menu-padding-block, --rh-navigation-primary-item-menu-padding-inline

• 6761889: <rh-button>: deprecated label in favor of accessible-label.

  BEFORE:

  <rh-button label="Search"></rh-button>

  AFTER:

  <rh-button accessible-label="Search"></rh-button>

  label will continue to function until the next major release.

• 6761889: <rh-alert>: added --rh-alert-border-width CSS custom property

• 6761889: <rh-chip>: fixed the close icon animation arc and exposed the btn-link CSS part

• 6761889: <rh-scheme-toggle>: added new public CSS custom properties (--rh-scheme-toggle-flex-flow, --rh-scheme-toggle-align-items, --rh-scheme-toggle-gap) to control fieldset layout direction, alignment, and spacing. Set --rh-scheme-toggle-flex-flow: column to position the legend above the button group.

• 6761889: <rh-cta>: improved focus ring rendering for better forced-colors (high contrast mode) compatibility. Added --rh-cta-hover-background-color and --rh-cta-focus-text-decoration CSS custom props for hover and focus state theming.

• 6761889: <rh-navigation-link>: added new public CSS custom properties (--rh-navigation-link-font-size, --rh-navigation-link-border-radius, --rh-navigation-link-inset-inline-start, --rh-navigation-link-border-inline-start-width, --rh-navigation-link-background-color, --rh-navigation-link-hover-background-color, --rh-navigation-link-indicator-border-radius, --rh-navigation-link-white-space)

• 6761889: <rh-navigation-vertical-list>: added new public CSS custom properties (--rh-navigation-vertical-list-summary-background-color, --rh-navigation-vertical-list-summary-hover-background-color, --rh-navigation-vertical-list-summary-border-radius, --rh-navigation-vertical-list-nested-margin-inline, --rh-navigation-vertical-list-nested-margin-block)

Patch Changes

• 6761889: <rh-site-status>: improved visual style
• 6761889: <rh-skip-link>: added support for dark scheme
• 6761889: <rh-announcement>: update <rh-button> in dismissible announcements to use the accessible-label
  attribute.
• 6761889: <rh-navigation-primary>: corrected default logo link destination to point to redhat.com/en
• 6761889: <rh-footer>: updated visual design with top border, responsive link header font sizes, and brand-red Fedora logo