Issue #2878556 by plach, matsbla, vijaycs85, Gábor Hojtsy, catch, gabesullice, effulgentsia, hchonov, hass, amateescu, xjm: Ensure that changes to untranslatable fields affect only one translation in pending revisions

(cherry picked from commit 27c3b40e)

Issue #2914974 by quietone, rakesh.gectcr, maxocub, heddn, Jo Fitzgerald, Yogesh Pawar, masipila, phenaproxima, jhodgdon, Gábor Hojtsy, larowlan, neclimdul: Migrate UI - handle sources that do not need an upgrade

(cherry picked from commit 5fcde4a7)

Issue #2920172 by sushantpaste, dev.patrick, Ashreen Kaur, yoroy, xjm: User Guide link on front page in new Install should  open in new tab

Issue #2908282 by heddn, phenaproxima, Jo Fitzgerald, quietone, xjm, larowlan, mikeryan, dipakmdhrm: Throw exception for source plugins without a source_module property

Issue #2916740 by chr.fritsch, xjm, Manuel Garcia, tstoeckler, alexpott, seanB, Sam152, amateescu, tim.plunkett, dawehner, larowlan, Berdir: Add generic entity actions

Issue #2866809 by BrightBold: Update stylelint rule declaration-colon-space-after to be consistent with Drupal's CSS standards

Issue #2932154 by jhedstrom: ModerationInformation::getLatestRevisionId returns access-specific results

Issue #2876085 by heddn, maxocub, phenaproxima, Jo Fitzgerald, vasi, quietone, yoroy, masipila, larowlan, neclimdul, krystalcode, catch: Before upgrading, audit for potential ID conflicts

Issue #2791571 by chr.fritsch, kristiaanvandeneynde, phenaproxima, Berdir, seanB, tstoeckler, Wim Leers, xjm: Automatically supply contextual links for entities

Issue #2895001 by marcoscano, vijaycs85, Wim Leers, benjifisher, xjm, Berdir, amateescu: Use the bundle label (e.g. "Media type") instead of "Bundles" in the Entity Reference field configuration

Issue #1472946 by gnuget, andypost, mmrares, sidharthap, kiamlaluno, Himanshu5050, dineshkumares, amit.drupal: Remove usages of deprecated function drupal_realpath() throughout core functions

Issue #2901562 by mfernea, Jo Fitzgerald, Yogesh Pawar, 3ssom, Mile23, borisson_: Fix 'Squiz.WhiteSpace.SuperfluousWhitespace' coding standard

Issue #2917883 by quietone, TR, Jo Fitzgerald, masipila, phenaproxima: Rename 'migration_templates' directories in core modules to 'migrations'

Issue #2892821 by tedbow, zaporylie, alexpott, Wim Leers, dagmar, yoroy, effulgentsia, Bojhan: Core modules check node module's "access content" permission for displaying things that have nothing to do with nodes

Issue #2840392 by Wim Leers, JacobSanford, Yogesh Pawar, dawehner, xjm, effulgentsia, Mixologic, Bojhan, webchick, Gábor Hojtsy, yoroy: Enable BigPipe by default in the Standard install profile

Issue #2911306 by alexpott, roynilanjan, mondrake, quicksketch, quietone: Migration module breaks with PHP 7.2 due to inherited method signature differences

Issue #2914668 by Jo Fitzgerald, shashikant_chauhan, heddn, quietone: MigrateNodeDeriverTest::testNoTranslations() does not install node module

Issue #2572787 by alexpott, mfernea, attiks, andriyun, andypost, RoSk0, hussainweb, klausi, martin107: Fix 'Drupal.WhiteSpace.CloseBracketSpacing' coding standard

Issue #2901572 by Jo Fitzgerald, bluccas, mfernea, klausi: Fix 'Drupal.Commenting.PostStatementComment' coding standard

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

Issue #2887142 by maxocub, phenaproxima, Jo Fitzgerald, Adita, heddn, andypost: NodeType source plugin should include comment information

Issue #2873768 by dhopki12, WidgetsBurritos, harsha012, Mile23, catch: Add Change record to @deprecated for *.modules constants

Issue #2810097 by Lendude, larowlan, jp.stacey, Meenakshi Gupta, rachel_norfolk, dawehner, alexpott: Allow views to provide the canonical entity URL of all entities, not just nodes

Issue #2850085 by maxocub, heddn, Jo Fitzgerald, Gábor Hojtsy, catch, larowlan, mikeryan: Redirects for translation set migration path in Drupal 6 and 7

Issue #2902766 by maxocub, masipila, Jo Fitzgerald: Node 'comment open / closed' status not migrated

Issue #2572791 by Mile23, andriyun, attiks, RoSk0: Fix 'Drupal.WhiteSpace.OpenBracketSpacing' coding standard

Issue #2705925 by heddn, Adita, jibran, Berdir, joelpittet, jazzdrive3: ImageItem presave() fails when pointing to a non-existing file entity

Issue #2907348 by karthikkumarbodu, dawehner, jhodgdon, Gábor Hojtsy: Enable new users to learn about the user guide

Issue #2901739 by andriyun, Jo Fitzgerald, mfernea, xjm: Fix 'Squiz.Arrays.ArrayDeclaration' coding standard