v75.0.0

• EuiFlyouts now automatically shard all fixed EuiHeaders on the page. This means that interactions (mouse & keyboard) with items inside EuiHeaders when flyouts are open will no longer trigger focus fighting (#6566)
• EuiFlyouts now read out detailed screen reader dialog instructions and hints on open (#6566)

Bug fixes

• Fixed EuiSelectable options with incorrect aria-posinset indices when rendered with group labels not at the start of the array (#6571)
• Fixed a bug with EuiSearchBar where filters with multiSelect: false were not able to select a new option when an option was already selected (#6577)

Breaking changes

• Removed the ability to customize the role prop of EuiFlyouts. EuiFlyouts should always be dialog roles for screen reader consistency. (#6566)
• Removed closeButtonAriaLabel prop from EuiFlyout - use closeButtonProps['aria-label'] instead (#6566)