Issue #2873696 by nvexler, wengerk, gido, Jo Fitzgerald, xjm: Add @internal to core classes, methods, properties to Form Classes

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 #2851761 by MariaDenysyuk, andypost: Comment logs messages under both 'content' and 'comment' loggers; make it consistent

Issue #2719695 by alexpott, Mile23: Fix 'Drupal.Classes.ClassDeclaration.CloseBraceAfterBody' coding standard

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

Issue #2471689 by klopez, shashikant_chauhan, harings_rob, snehi, jhodgdon: Entity API documentation should consistently refer to handlers rather than controllers

Issue #1808478 by Mile23, prhavile, naveenvalecha, llbbl, hctom, nikunjkotecha, Lars Toomre, deepakaryan1988, mrjmd, jgeryk, mlevasseur: Add missing type hinting to Comment module docblocks

Issue #2502621 by Pravin Ajaaz, hussainweb, Peacog, jhodgdon, ivanjaros: Replace implement notes with inheritdoc tag

Issue #2515018 by joshi.rohit100, sdstyles, joelpittet: Lowercase the instances of camelcase'd instanceOf in core for consistency

Issue #2571909 by alexpott, larowlan, stefan.r, Wim Leers, lauriii, effulgentsia, Upchuk, dunix: CommentForm selects using the user formatted name

Issue #2543332 by Wim Leers, effulgentsia, Fabianx, Crell, dawehner, borisson_: Auto-placeholdering for #lazy_builder without bubbling

Issue #2527406 by Gábor Hojtsy, Berdir: CommentForm::init() and MessageForm::init() are useless/broken

Issue #2453175 by tim.plunkett, plach, rteijeiro, effulgentsia, eshta, dawehner, fago, Berdir, alexpott: Remove EntityFormInterface::validate() and stop using button-level validation by default in entity forms

Issue #1392754 by tss, justAChris, jhodgdon: Comply with new documentation standards for @file for namespaced class files

Issue #2395831 by dawehner, fago, martin107, cafuego, YesCT, plach, jibran, larowlan, Wim Leers, effulgentsia, klausi: Entity forms skip validation of fields that are not in the EntityFormDisplay

Issue #2105797 by dawehner, fago, larowlan, effulgentsia, jibran, amateescu, yched: Add CompositeConstraintBase so that constraints involving multiple fields, such as CommentNameConstraint, can be discovered

Issue #2463009 by Wim Leers: Introduce CacheableResponseInterface: consolidate ways of setting X-Drupal-Cache-Tags/Contexts headers

Revert "Issue #2459753 follow-up by tim.plunkett, alexpott: EntityForm::validate() should be able to modify the form structure"

This reverts commit fb5ea78b.

Issue #2459753 follow-up by tim.plunkett, alexpott: EntityForm::validate() should be able to modify the form structure

Revert "Issue #2459753 by tim.plunkett: EntityForm::validate() should be able to modify the form structure"

This reverts commit d4d83576.

Issue #2444231 by Wim Leers, nlisgo: Fix CacheableInterface so it makes sense (was: "Make Config objects & Entities implement CacheableInterface + add BubbleableMetadata::createFromCacheableObject()")

Issue #2457781 by prateekMehta, stefan.r, AjitS, hussainweb: Use Utility\Html class instead of Utility\String for decodeEntities() function

Issue #2453143 by Wim Leers: CommentForm depends on configured field, but doesn't associate that cache tag

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 #2407765 by Wim Leers, borisson_: Wherever simple config is used to render output to end user, associate their cache tags

Issue #2398073 by mohit_aghera, geertvd, sidharrell, Swarnendu-Dutta, piggito, jesperjb, larowlan, pingers, larsmw: Admin should not be able to edit email of authenticated commenters

Issue #2403485 by larowlan, kim.pepper, idebr, fago: Complete conversion of comment form validation to entity validation

Issue #2230637 by plach, fran seva, yched, swentel: Create a Language field widget and the related formatter

Issue #2355909 by penyaskito, alexpott, Gábor Hojtsy, DuaelFr: language.settings config is not scalable

Issue #2340667 by YesCT, Pedro Lozano, alexpott, martin107: Protect Drupal\Core\Language\Language::id, and use getId().