Issue #3076054 by godotislate, joaopauloc.dev, smustgrave, nod_, nayana_mvr, larowlan, alexpott, lauriii, quietone, benjifisher, anup.singh, bnjmnm: Existing field items should not be validated when adding another item in widget for unlimited cardinality field

Issue #3376692 by lauriii, mstrelan, quietone, acbramley, larowlan, smustgrave: Removed values in multi-value fields reappear

Issue #3378657 by dineshkumarbollu, gorkagr, smustgrave: Duplicate declaration of $context in WidgetBase

Issue #1038316 by tacituseu, vasike, heddn, Eyal Shalev, cchoe1, lauriii, siva01, perry.franken, sanfair, jan.stoeckler, anmolgoyal74, MRPRAVIN, scott.whittaker, dj1999, vytch, SpadXIII, GRO, samuel.seide, szato, Denisev, Munavijayalakshmi, ankithashetty, neclimdul, mayurjadhav, rgpublic, bartzaalberg, electrokate, Lal_, realityloop, ameymudras, linhnm, fabianfiorotto, Abhijith S, bleen, smustgrave, rogueturnip, alexpott: Allow for deletion of a single value of a multiple value field

Issue #3328443 by xjm, rpayanm, alexpott, catch, longwave: Replace most strpos() === 0 or !== 0 with str_starts_with()

Issue #3298731 by alexpott, andypost, catch, longwave, Berdir, bbrala, Wim Leers: Using ConstraintViolation::$arrayPropertyPath bugs on PHP 8.2

Issue #3222251 by bbrala, longwave: [November 8, 2021] Replace all isset constructs with the null coalescing operator

Issue #3239744 by alexpott, daffie: \Drupal\Core\Field\WidgetBase::getFilteredDescription() can cause deprecations on PHP 8.1

Issue #2872162 by chr.fritsch, adityasingh, jian he, p4trizio, amateescu, alexpott: No hook alter to override Field Widget wrappers created by WidgetBase::form

Issue #2893789 by szeidler, Kristen Pol: WidgetBase not using its own getFilteredDescription() helper method

Issue #2619482 by cburschka, ankit.singh, ravi.shankar, jungle, daffie: Convert all get_called_class()/get_class() to static::

Issue #3111906 by himmatbhatia, alexpott, swatichouhan012, longwave: Remove deprecated AllowedTagsXssTrait

Issue #3051633 by chr.fritsch, alexpott, amateescu, daniel.bosen, Berdir, hchonov: Add ContainerFactoryPluginInterface to Drupal\Core\Field\WidgetBase and Drupal\Core\Field\FormatterBase

Issue #2784015 by amateescu, jlbellido, Gogowitsch, krknth, ibustos: Widget validation crashes on ItemList violations for widgets with a custom errorElement() implementation

Issue #2943035 by tedbow, xjm, tim.plunkett: hook_field_widget_multivalue_form_alter and hook_field_widget_multivalue_WIDGET_TYPE_alter are not invoked for single widget that handle multiple values

Issue #2940201 by xjm, amateescu, benjifisher, tedbow, tim.plunkett, Berdir: hook_field_widget_form_alter() can no longer affect the whole widget for multi-value fields

Issue #2776975 by joelpittet, dawehner, tim.plunkett, xjm, pfrenssen: March 3, 2017: Convert core to array syntax coding standards for Drupal 8.3.x RC phase

Issue #2665992 by alexpott, klausi, heykarthikwithu, xjm, tstoeckler: @file is not required for classes, interfaces and traits

Issue #2576533 by alexpott, stefan.r, Wim Leers, dawehner, xjm, effulgentsia, catch: Rename SafeStringInterface to MarkupInterface and move related classes

Issue #2560641 by alexpott, lauriii, Xano, borisson_, ianthomas_uk, olli: Remove all usages SafeMarkup::checkPlain() from render arrays

Revert "Issue #2560641 by alexpott, lauriii, Xano, borisson_, ianthomas_uk: Remove all usages SafeMarkup::checkPlain() from render arrays"

This reverts commit 31007609.

Issue #2560641 by alexpott, lauriii, Xano, borisson_, ianthomas_uk: Remove all usages SafeMarkup::checkPlain() from render arrays

Issue #2551511 by alexpott, stefan.r, RavindraSingh, pjonckiere, JeroenT, Mariano: Remove SafeMarkup::set() from AllowedTagsXssTrait

Issue #2214241 by mortendk, mdrummond, lauriii, galooph, ShaunDychko, jjcarrion, b0unty, joelpittet, scor, amitgoyal, aboros, Manuel Garcia, hkirsman, BLadwin, hussainweb, sushilkr, emma.maria, nlisgo, yched, LewisNyman, davidhernandez, mikl, camoa, dman, dodorama: Field default markup - removing the divitis

Issue #2487600 by dawehner, Wim Leers, fgm: #access should support AccessResultInterface objects or better has to always use it

Issue #980144 by DuaelFr, yched, ACF, poedan, tim.plunkett, mgifford, swentel, asgorobets, SamH, sun, Everett Zufelt: Issues with "required, multiple" fields in forms

Issue #2491155 by mikeburrelljr, Mac_Weber, opdavies: Update drupal.org and kernel.org URLs in core modules (Follow-up to 2489912)

Issue #2457887 by prateekMehta, stefan.r, rpayanm, alexpott: Use Utility\SafeMarkup class instead of Utility\String for placeholder(), checkPlain(),format() functions

Issue #2407361 by cilefen, JeroenT, hussainweb, neclimdul, ircmaxell, tim.plunkett, nlisgo, Crell: Move usages of drupal_html_id() to Html::getUniqueId()

Revert "Issue #2407361 by JeroenT, cilefen, hussainweb: Move usages of drupal_html_id() to Html::getUniqueId()"

This reverts commit 85b8c837.

Issue #2407361 by JeroenT, cilefen, hussainweb: Move usages of drupal_html_id() to Html::getUniqueId()

Issue #2164601 by yched, jibran, amateescu, pfrenssen: Stop auto-creating FieldItems on mere reading of $entity->field[N]

Issue #2382543 by rpayanm, ianthomas_uk: Remove usage of drupal_html_class() and drupal_clean_css_identifier()