Issue #1852454 by patrickd, xjm, YesCT, Berdir, amateescu, Pancho, djroshi, dealancer, Wim Leers, jessebeach: Restrict module and theme name lengths to 50 characters.

Issue #1777956 by fago, klausi, sun, dasjo: Provide a way to define default values for entity fields.

Issue #1981316 by aspilicious, andypost, pcambra, swentel: Drop procedural usage of fields in [f-l] modules.

Issue #2011084 by jiff | DmitryDrozdik: Replace drupal_container() with Drupal::service() in the file module.

Issue #1893772 by chx, fubhy, slashrsm: Move entity-type specific storage logic into entity classes.

Issue #1950632 by effulgentsia, Wim Leers, amateescu, yched: Create a FieldDefinitionInterface, decoupled from  and  config entities, and use it for formatters and widgets.

Issue #2000006 by ACF, juampy: Convert _file_test_form() to the new form interface and convert route.

Issue #1987066 by Kevin Morse, JohnAlbin, rteijeiro, echoz, ry5n: Rename files to match CSS file naming convention.

Issue #1818570 by Berdir, effulgentsia, das-peter, andypost: Convert users to the new Entity Field API.

Issue #1969662 by swentel, amateescu, chx | yched: Provide new _update_8000_*() CRUD helpers for Field and Instance definitions.

Issue #1888424 by katbailey, steveoliver, twistor, beejeebus, effulgentsia: Change notice: Make Drupal's URL generation logic available to HttpKernel, and minimize code repetition/divergence.

Issue #1791970 followup by marvil07, dww: Optionally detect tar.* as extension instead of * on views file extension field handler.

Issue #2002974 by tvlooy, kenianbei, danylevskyi | Dan Reinders: Rename Views method title_query() to titleQuery().

Issue #2002348 by baldwinlouie, heddn, sillygwailo: Rename Views method advanced_render() to advancedRender().

Issue #625958 followup by slashrsm, chx, andypost, yched: [Follow up] Support Uploading Multiple Files for HTML5 Browsers via #multiple attribute.

Issue #1999322 by elvis2, alexander.ilivanov | Berdir: Remove node_save() and node_delete()/node_delete_multiple() in favor of $node->save()/$node->delete().

This reverts commit 0e59a8d6.

Issue #2003500 by tyjamessmith, aviindub, marlatt: Rename Views method get_value_options() to getValueOptions().

Issue #2002450 by jazzdrive3: Rename Views method default_display_options() to defaultDisplayOptions().

Issue #1792032 by balsama, bjorpe | lxs: Fixed File validation error message not removed after subsequent upload of valid file.

Issue #1791970 by marvil07, drumm: Added Optionally detect tar.* as extension instead of * on views file extension field handler.

Issue #1468210 followup by David_Rothstein: Fixed Remove special ->uid == 1 check in file_validate_size().

Issue #1498674 by plach, das-peter, Schnitzel, dawehner, YesCT, attiks, Berdir, Gábor Hojtsy, Soul88, Carsten Müller: Refactor node properties to multilingual.

Issue #1620010 by dawehner, ParisLiakos, plach, jibran: Move LANGUAGE constants to the Language class.

Issue #1827448 by RobLoach, sun, jbrown, tstoeckler: Use __DIR__ instead of DRUPAL_ROOT where possible/sensible.