• Added thumbUp and thumbDown icons (#8937)
• Removed obsolete IE-specific CSS properties (#8940)
• Updated EuiComboBox to allow multiline options by disabling virtualization (rowHeight="auto") (#8934)

Bug fixes

• Fixed interactive content in header cells on EuiDataGrid not being correctly removed from the tab order (#8938)
• Fixed an issue where the validity state of EuiFieldNumber did not update when the isInvalid prop value changed (#8952)
• Reverted a font-size change for xs buttons back to 12px (#8930)
• Fixed unexpected results for the SCSS function lineHeightFromBaseline (#8922)
• Fixed euiDataGridRow--selected not applying on EuiDataGrid whith stripes={true} (#8925)
• Fixed euiDataGridRow--marked and euiDataGridRow--selected applying hover styling on EuiDataGrid when stripes={true} (#8925)

Accessibility

• Added a screen reader help text for entered interactive cells of EuiDataGrid to provide information about exiting cells (#8938)
• Added a new beta EuiLiveAnnouncer component which supports aria-live announcements on mount (#8916)
• Added announceOnMount prop on EuiCallOut to support announcing its content on mount (#8916)