Issue #2421263 by alexpott, formatC'vt, kim.pepper, andypost, larowlan, chx: Potential data loss: concurrent (i.e. by different users) node edits leak through preview

Issue #2368797 by Wim Leers, dawehner, rteijeiro: Optimize ajaxPageState to keep Drupal 8 sites fast on high-latency networks, prevent CSS/JS aggregation from taking down sites and use HTTP GET for AJAX requests

Issue #2335659 by tim.plunkett, dawehner, effulgentsia, sun: Remove FormState ArrayAccess usage from core.

Issue #2308821 by tim.plunkett: Replace FormErrorInterface with $form_state->setErrorByName() and $form_state->setError().

Issue #2154711 by plopesc, tim.plunkett, olli, Berdir, Dave Reid: Move entity_get_(form/view)_mode_options() functions to EntityManager and add get(Form/View)ModeOptions() methods.

Issue #2134887 by zwischenzug, yched, plopesc: Move field_view_field() / field_view_value() to methods.

Issue #2156793 by Wim Leers, jessebeach: Unravel a PHP 5.4 workaround for Edit module once Drupal requires PHP 5.4.

Issue #2110501 by tim.plunkett, pwolanin, tstoeckler: ControllerBase should implement ContainerInjectionInterface like FormBase.

Issue #2164827 by Berdir, Xano, tim.plunkett: Rename the entityInfo() and entityType() methods on EntityInterface and EntityStorageControllerInterface.

Issue #2144879 by Wim Leers, yched: Brush up MetadataGeneratorInterface::generate(Field|Entity)(): use FieldItemListInterface + better naming.

Issue #2168113 by penyaskito, jessebeach, catch: Add leading underscore and other discouragement to drupal_add_css() and drupal_add_js().

Issue #2167169 by pwolanin, tim.plunkett: Clean up Drupal\edit\EditController: remove ContainerAware and inject form_builder.

Issue #2075185 by Wim Leers: When an entity is in-place edited (i.e. saved), other instances of that entity on the same page are not updated (no propagation).

Issue #2149599 by Wim Leers: Fix minor bugs and minor coding standards violations in edit.module, discovered by backporting.

Issue #1988612 by effulgentsia, yched, Wim Leers, Berdir, Pancho: Apply formatters and widgets to rendered entity base fields, starting with node.title.

Issue #2066535 by tim.plunkett, jsst, Berdir: Add EntityManagerInterface and stop typehinting with EntityManager.

Issue #2083387 by Gábor Hojtsy, Wim Leers: Make it possible to use in-place editing on entities rendered by a custom render pipeline (e.g. Views).

Issue #2100329 by cosmicdreams: Use \Drupal instead of Drupal to make IDEs and static code analyse tools happy.

Issue #2040021 by Wim Leers, tim.plunkett: Fixed In-place editing of nodes does not create new revisions (when the content type is configured to create new revisions by default).

Issue #2057869 by dawehner, jibran: Provide an alias for 'plugin.manager.entity' called 'entity.manager'.

Issue #2057589 by smiletrl, tim.plunkett, alexpott, dawehner: Rename ControllerInterface to ContainerInjectionInterface.

Issue #1901100 by Gábor Hojtsy, jessebeach, Wim Leers: Make Edit module work with TempStore, so revisions are not saved on all atomic field edits.

Issue #1678002 by jessebeach, Wim Leers, Gábor Hojtsy: Edit should provide a usable entity-level toolbar for saving fields.

Issue #1980744 by Wim Leers: Turn edit/metadata into a JsonResponse again, to allow contrib to implement client-side caching of metadata.

Issue #1996378 by Wim Leers: Edit broken because of #1043198 and routing system bug + missing test coverage.