Issue #1913084 by tim.plunkett: Introduce a Form interface for building, validating, and submitting forms.

Issue #1903176 by tim.plunkett: Add a drupal_build_form() helper for using a method as the callback.

Issue #1846648 by yched, swentel: Rename field_attach_submit(), because it is also called from within validation.

Issue #1801304 by Amitaibu, amateescu, effulgentsia, tim.plunkett, EclipseGc, Fabianx, Cottser: Added Entity reference field.

Issue #1822458 by tim.plunkett, effulgentsia: Move dynamic parts (view modes, bundles) out of entity_info().

Issue #1876134 by YesCT: 'has no field settings' does not make sense (follow-up to Adding new fields leads to a confusing ;Field settings; form).

Issue #1874300 by Berdir, swentel: Remove $entity_type argument from field.module functions that receive a single $entity.

Issue #1852966 by yched, Stalski, zuuperman, swentel: Rework entity display settings around EntityDisplay config entity.

Revert "Issue #1852966 by yched, swentel: Rework entity display settings around EntityDisplay config entity."

This reverts commit 8ad67af2.

Issue #1852966 by yched, swentel: Rework entity display settings around EntityDisplay config entity.

Issue #552604 by sun, lambic, swentel, yched, Lukas von Blarer: Adding new fields leads to a confusing 'Field settings' form.

Issue #680546 by swentel, jramby, Cottser, jonathan1055: Added a custom 'number of values' for 'multiple / multi-value' field. (e.g. nodereference, imagefield).

Issue #1168246 by sun, mgifford, Manuel Garcia, mbrett5062, ry5n, Everett Zufelt, nod_, aspilicious, deviantintegral, tim.plunkett: Freedom For Fieldsets! Long Live The DETAILS.

Issue #1292470 by sun, tim.plunkett, Berdir, moshe weitzman, pcambra, Niklas Fiekas, andypost et al: Convert user pictures to Image Field.

Issue #1845286 by shameemkm, purencool, webchick: Bogus reference to field_ui_field_overview_form_validate()/submit in docs.

Issue #1824244 by webflo, fubhy: Turn _field_ui_bundle_admin_path() into a public function (field_ui_bundle_admin_path()).

Issue #1672694 by Devin Carlson, JulienD, kalabro: Fixed Field UI continues to use t() for ['label'] in field_ui().admin.inc.

Issue #1308564 by amontero, madmatter23, kbasarab, guile2912, Deciphered: Added Basic token support in fields' help texts.

Issue #1792600 by Stalski, fubhy, swentel: Refactor field_ui() so common behavior for fields and display overview screens are extracted.

Issue #1480854 by tim.plunkett, Noyz, Bojhan, yoroy, kika: Convert operation links to '#type' => 'operations'.

Issue #945524 by Jelle_S, tim.plunkett, Dave Reid, pfrenssen, xjm, swentel: Added Field formatter settings hooks in core.

Issue #1785256 by yched, Stalski, zuuperman, sun, tstoeckler, aspilicious, EclipseGc, larowlan: Widgets as Plugins.

Issue #1276908 by jessebeach, nod_, moshe weitzman, lewisnyman, webchick: Fixed Administrative tables are too wide for smaller screens.

Issue #813750 by swentel, joachim, zuuperman: Fixed don't show 'Custom display settings' on Manage Display if there's only one view mode.

Issue #813750 by joachim, zuuperman, swentel: Fixed don't show 'Custom display settings' on Manage Display if there's only one view mode.

Issue #846182 by reglogge, szantog, geerlingguy: Fixed Seven theme form buttons have no hover state.

Issue #1737148 by nod_, SebCorbin, larowlan, tim.plunkett, Albert Volkman, nick_schuch, sun: Explicitly declare all JS dependencies, don't use drupal_add_js().

- Patch #1430670 by ELC, izus: Manage fields - Rename 'Add existing field' to 'Re-use existing field'.