`v90.0.0`⏩`v91.0.0-backport.0`

⚠️ While this upgrade pings many teams and has a large code diff, **the
majority of the changes are snapshots or tests-related** and do not
touch source code, so should theoretically only need a code review and
not dedicated QA.

The changes in EUI that required a large swathe of these updates are:

- **EuiPopover** removed an extra unnecessary `<div>` wrapper on its
anchors, which affected many snapshots and a few CSS overrides, which
should have been updated
- **EuiButtonGroup** now renders `<button>` elements instead of `<input
type="radio">` elements for single selection, which affected both
snapshots and E2E tests
- **EuiSuperDatePicker**'s absolute date input now requires an `Enter`
keypress when parsing dates (affected E2E tests)
- **EuiComboBox**, when rendered with `singleSelection={{ plainText:
'true' }}`, no longer renders a pill (i.e. text). This combobox type now
behaves more like an `EuiFieldText`, where the selection is rendered via
input `value` instead. This affected a high amount of E2E tests (both
FTR and Cypress), both in terms of updating assertions and changing
selections, but should **not** significantly affect user experience -
see elastic/eui#7332 for more.

---

##
[`v91.0.0-backport.0`](https://github.com/elastic/eui/tree/v91.0.0-backport.0)

**This is a backport release only intended for use by Kibana.**

- Added `esqlVis`, `pipeBreaks`, and `pipeNoBreaks` icon glyphs.
- `EuiSelectable` now allows configurable text truncation via
`listProps.truncationProps`
([#7388](elastic/eui#7388))
- `EuiTextTruncate` now supports a new `calculationDelayMs` prop for
working around font loading or layout shifting scenarios
([#7388](elastic/eui#7388))

**Bug fixes**

- Fixed a bug with `EuiSelectable`s with custom `truncationProps`, where
scrollbar widths were not being accounted for
([#7392](elastic/eui#7392))

## [`91.0.0`](https://github.com/elastic/eui/tree/v91.0.0)

- Updated the background color of `EuiPopover`s in dark mode to increase
visibility & contrast against other page/panel backgrounds
([#7310](elastic/eui#7310))
- Memoized `EuiDataGrid` to prevent unneeded re-renders
([#7324](elastic/eui#7324))
- Added a configurable `role` prop to `EuiAccordion`
([#7326](elastic/eui#7326))
- Added a configurable `role` prop to `EuiGlobalToastList`
([#7328](elastic/eui#7328))
- For greater flexibility, `EuiSuperDatePicker` now allows users to
paste ISO 8601, RFC 2822, and Unix timestamps in the `Absolute` tab
input, in addition to timestamps in the `dateFormat` prop
([#7331](elastic/eui#7331))
- Plain text `EuiComboBox`es now behave more like a normal text
field/input. Backspacing will no longer delete the entire value, and
selected values can now be double clicked and copied.
([#7332](elastic/eui#7332))
- `EuiDataGrid`'s display settings popover now allows users to clear the
"Lines per row" input before typing in a new number
([#7338](elastic/eui#7338))
- Improved the UX of `EuiSuperDatePicker`'s Absolute tab for users
manually typing in timestamps
([#7341](elastic/eui#7341))
- Updated `EuiI18n`s with multiple `tokens` to accept dynamic `values`
([#7341](elastic/eui#7341))

**Bug fixes**

- Fixed `EuiComboBox`'s `onSearchChange` callback to pass the correct
`hasMatchingOptions` value
([#7334](elastic/eui#7334))
- Fixed an `EuiSelectableTemplateSitewide` bug where the `popoverButton`
behavior would break if passed a non-DOM React wrapper
([#7339](elastic/eui#7339))

**Deprecations**

- `EuiPopover`: deprecated `anchorClassName`. Use `className` instead
([#7311](elastic/eui#7311))
- `EuiPopover`: deprecated `buttonRef`. Use `popoverRef` instead
([#7311](elastic/eui#7311))
- `EuiPopover`: removed extra `.euiPopover__anchor` div wrapper. Target
`.euiPopover` instead if necessary
([#7311](elastic/eui#7311))
- Deprecated `EuiButtonGroup`'s `name` prop. This can safely be removed.
([#7325](elastic/eui#7325))

**Breaking changes**

- Removed deprecated `euiPaletteComplimentary` - use
`euiPaletteComplementary` Instead
([#7333](elastic/eui#7333))

**Accessibility**

- Updated `type="single"` `EuiButtonGroup`s to render standard buttons
instead of radio buttons under the hood, per recent a11y recommendations
([#7325](elastic/eui#7325))
- `EuiAccordion` now defaults to a less screenreader-noisy `group` role
instead of `region`. If your accordion contains significant enough
content to be a document landmark role, you may re-configure it back to
`region`. ([#7326](elastic/eui#7326))
- Reduced screen reader noisiness when sorting `EuiDataGrid` columns via
toolbar ([#7327](elastic/eui#7327))
- `EuiGlobalToastList` now defaults to a `log` role. If your toasts will
always require immediate user action, consider (with caution) using the
`alert` role instead.
([#7328](elastic/eui#7328))

**CSS-in-JS conversions**

- Updated `$euiFontFamily` and `$euiCodeFontFamily` to match Emotion
fonts ([#7332](elastic/eui#7332))

---------

Co-authored-by: Cee Chen <constance.chen@elastic.co>
Co-authored-by: kibanamachine <42973632+kibanamachine@users.noreply.github.com>
Co-authored-by: Cee Chen <549407+cee-chen@users.noreply.github.com>
Co-authored-by: Stratoula Kalafateli <efstratia.kalafateli@elastic.co>