Issue #1967036 by effulgentsia: Fixed WebTestBase::drupalGetAJAX() and WebTestBase::drupalPostAJAX() don't set the Accept header needed for content negotiation.
Issue #1971046 by ACF | Berdir: Fixed DateTimeFieldTest is DatetimeFieldTest.php (incorrect case).
Issue #1862758 by Berdir, dawehner: [Followup] Implement entity access API for terms and vocabularies.
Issue #1946416 by kim.pepper: Convert all of confirm_form() in image.admin.inc to the new form interface.
Issue #1796316 by netsensei, swentel, jibran, zuuperman, amateescu: Convert Link/URL widgets / formatters to plugin system.
Issue #1963392 by Xano: Update Entity Reference's exclusion of config entities.
Issue #1913086 by jessebeach, Wim Leers, mgifford, nod_: Generalize the overlay tabbing management into a utility library.
Issue #1955926 by quicksketch: Fixed CKEditor admin interface not touch-compatible (Add jQuery Touch Punch to core).
Issue #1974632 by amateescu: Wrong message displayed by field_ui_inactive_message().
Issue #1867090 by joelpittet, Fabianx: Fixed Nested Twig 'for' loops behaving strange.
Issue #625958 by slashrsm, quicksketch, eojthebrave, droplet, danlinn, czigor: Support Uploading Multiple Files for HTML5 Browsers via #multiple attribute.
Issue #1974346 by ericduran: Fixed Details summaries should have ‘cursor: pointer’.
Issue #1974628 by amateescu: Fixed Don't call t() on the field and widget label in FieldOverview::buildForm().
Issue #1974380 by rootatwc: Fixed Wrong inheritdocs in \Drupal\views\Plugin\views\style\Table and \Drupal\Core\Plugin\Factory\ContainerFactory.
Issue #1877376 by damiankloip, dawehner, Bojhan: Change notice: Improve Views UI text for the contextual links display setting.
Issue #1959306 by jessebeach: Drupal.announce does not handle multiple messages at the same time; Improve the utility so that simultaneously calls are read.
Issue #1974396 by effulgentsia: Narrow the API of _text_sanitize() and make it public.
Issue #1966998 by andypost, swentel: Add a constant OR use TRUE/FALSE for active storage vs. inactive storage and other properties.
Issue #1974422 by ericduran: Update to latest html5shiv library.
Issue #1946334 by mtift: Convert confirm_form() in block.admin.inc to the new form interface.