Issue #2937945 by yo30, kim.pepper, dawehner, voleger, larowlan: Add messenger to ControllerBase and FormBase

Issue #2857857 by vegantriathlete, Jo Fitzgerald, snehi, plach, xjm, Skabbkladden: Check use of "it's" in core to ensure proper use

Issue #2927746 by alexpott, catch, slasher13, mpdonadio, martin107, RoSk0, jibran, larowlan, pounard, Mile23, Jo Fitzgerald, deviantintegral, pritish.kumar: Update Symfony components to 3.4.*

Issue #1489692 by Liam Morland, pfrenssen, YesCT, geekinpink, sudishth, josmera01, David_Rothstein: Incorrect handling of file upload limit exceeded - file widget disappears

Issue #2915820 by martin107, tim.plunkett, dawehner: [PHP 7.2] FormValidator: Parameter must be an array or an object that implements Countable

Issue #2572795 by mfernea, zaporylie, pfrenssen, andypost, attiks, alexpott, xjm, Mile23, catch, borisson_: Fix coding standard for closures - Drupal.WhiteSpace.ScopeClosingBrace and Generic.Functions.OpeningFunctionBraceKernighanRitchie

Revert "Issue #2572795 by mfernea, pfrenssen, attiks, andypost, alexpott, xjm, Mile23, catch, borisson_: Fix coding standard for closures - Drupal.WhiteSpace.ScopeClosingBrace and Generic.Functions.OpeningFunctionBraceKernighanRitchie"

This reverts commit c422bdfa.

Issue #2572795 by mfernea, pfrenssen, attiks, andypost, alexpott, xjm, Mile23, catch, borisson_: Fix coding standard for closures - Drupal.WhiteSpace.ScopeClosingBrace and Generic.Functions.OpeningFunctionBraceKernighanRitchie

Issue #2903331 by mfernea: Fix 'Drupal.NamingConventions.ValidVariableName.LowerStart' coding standard

Issue #1286154 by mcdruid, cosmicdreams, das-peter, Cameron Tod, heddn, xjm, catch, tstoeckler, David_Rothstein, anavarre, tim.plunkett, naveenvalecha, dawehner: Allow custom default form cache expiration/lifetime

Issue #2883646 by shashikant_chauhan, Dinesh18: Fix incorrect mention of getBaseInfo() on BaseFormIdInterface to getBuildInfo()

Issue #2596597 by hchonov, sardara, claudiu.cristea, pfrenssen: [regression] Soft reload does not clean up user inputs like in D7 (Firefox only)

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 #2803779 by pfrenssen, klausi, Mile23, alexpott, dawehner: Update Coder to 8.2.10 and fix errors from improved sniffs

This reverts commit e72c97b9.

Issue #177124 by hgoto, roblav, mrfelton, AjitS, wturrell, lyricnz, ADLongwell, tim.plunkett, effulgentsia, sun, GoddamnNoise, Liam Morland, Xano, drumm, guschilds, cilefen: Form validation messages appear in incorrect order

Issue #2754977 by dmsmidt, marcvangend, mohit_aghera, Getekid, tim.plunkett, ndf: Enhance formErrorHandler to include children errors on RenderElements

Issue #2569119 by pwolanin, marvin_B8, jhedstrom, csheltonlcm, alexpott, dawehner, Fabianx, catch:  Use Crypt::hashBase64(), not hash('crc32b') or sha1 for placeholder tokens

Revert "Issue #2704871 by pepegarciag, ieguskiza, snehi, gaurav.pahuja, rajeshwari10, dimaro, gargsuchi, pashupathi nath gajawada, penyaskito, Manuel Garcia, Mile23: Replace usages of deprecated method drupal render()"

This reverts commit ae3ee317.

Issue #2704871 by pepegarciag, ieguskiza, snehi, gaurav.pahuja, rajeshwari10, dimaro, gargsuchi, pashupathi nath gajawada, penyaskito, Manuel Garcia, Mile23: Replace usages of deprecated method drupal render()

Issue #2699489 by catch, tim.plunkett: FormBuilder $ajax_form_request check does not check which AJAX form is being requested

Issue #2572801 by alexpott, vprocessor, andriyun, andypost, chishah92, Mile23, attiks, hussainweb, klausi, dawehner, pfrenssen: Fix 'Drupal.WhiteSpace.ScopeIndent' coding standard

Issue #2780405 by kiamlaluno: ConfigFormBase::buildForm() comment contain a reference to a theme hook, which is a function that doesn't exist

Issue #2537732 by Xano, tim.plunkett, gnuget, claudiu.cristea, drunken monkey, bojanz: PluginFormInterface must have access to the complete $form_state (introduce SubFormState for embedded forms)

Issue #2747269 by chishah92, talhaparacha: Incorrect parameter documentation for FormBuilder::submitForm

Issue #2674508 by Mile23, tim.plunkett: Improve docs for how to properly add container injection into a class that extends FormBase

Issue #2729171 by Vinay15, kiamlaluno, jhodgdon: callback_batch_operation() code still contains Drupal 6 code

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

Issue #2716685 by Mile23: Part 2: Fix several errors in the 'Drupal.Commenting.DocComment' coding standard

Issue #2700661 by anoopjohn: Ensure core compliance to Drupal.Commenting.FunctionComment.ParamCommentIndentation (part 1).

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