Issue #2348747 by Manuel Garcia, joelpittet, lauriii, lokeoke, bbujisic, roderik: Convert theme_views_view_fields() to 100% Twig: remove the theme function

Issue #2361093 by mikeryan, dawehner, Devin Carlson, benjy, phenaproxima: Add a rollback functionality to migrate

Issue #2574917 by andrewmacpherson, googletorp: Regression: vertical tabs are not keyboard accessible

Issue #2558189 by JeroenT, pwolanin, Cyberschorsch, SteffenR, Mile23: Remove usage of deprecated UrlGeneratorInterface::generateFromPath() in system module

Issue #2404331 by larowlan, jibran, amateescu, RavindraSingh: Can't serialise an entity with an entity reference to an unsaved entity (remove EntityReferenceItem::$NEW_MARKER in favour of a validation constraint)

Issue #2554267 by asgorobets, justAChris, LoMo: Clean Environment button on Simpletest UI should not run test even if tests are selected

Issue #2543580 by harjotsingh, xq1003, kjay, longwave, jhodgdon, webchick: Post-install message referrs to "handbook" and links to irrelevant page

Issue #2575493 by Berdir, dawehner: Remove string cast of EntityType::getLabel() and getGroupLabel()

Issue #2571695 by dawehner, plach, stefan.r, jaredsmith, lauriii, YesCT, xjm, catch, alexpott, joelpittet, Ryan Weal, Sutharsan, subhojit777, justAChris, nlisgo, effulgentsia, rpayanm, larowlan, chx, geertvd: Remove !placeholder and unsafe string return from SafeMarkup::format()

Issue #2573667 by k4v, YesCT, plach, dawehner, othermachines: Entity uninstallation does not clean up field schema data in state properly

Issue #2575599 by jaredsmith, joshi.rohit100, dawehner, xjm, alexpott, plach, Berdir, Sutharsan, borisson_, justAChris, stefan.r, joelpittet, Ryan Weal: Remove !placeholder in ContactPersonalTest and Drupal\migrate\Plugin\migrate\id_map\Sql

Issue #2341267 by tohesi, nod_, gaas, gendoas, droplet, DuaelFr, bartvig: Bind event handlers for future multiple toolbars

Issue #2345801 by kgoel, tim.plunkett, dawehner, fgm, mr.baileys, Crell, Berdir: template_preprocess_breadcrumb() assumes all breadcrumbs are \Drupal\Core\Link objects

Issue #2494551 by googletorp, joshi.rohit100, Nitebreed, cilefen: Wrong documentation for field formatter plugins namespaces

Issue #1912658 by joshi.rohit100, thsutton, mikebell_, zealfire, pjonckiere, dawehner: Document views access plugins

Issue #2485513 by Xano, tstoeckler, lauriii: DefaultFactory cannot deal with objects as plugin definitions

Issue #2561685 by markpavlitski: Follow up to: One-time login link failure messages are misleading because they are not marked as errors

Issue #2508884 by EclipseGc, tim.plunkett, dsnopek, japerry, sravya_12, swathin, Wim Leers, Fabianx, dawehner, yched: Make contexts immutable

Issue #1239930 by irunflower, mgifford, babruix, peterpoe, ohthehugemanatee, droplet, nod_, Cottser, frazras, xjm: states.js appends span.form-required to every label of a dependent field

Issue #2488420 by amycham, martin_q, cilefen, YesCT: Remove a misleading comment from Updater::update()

Issue #2507053 by aneek, joshi.rohit100, tstoeckler, tim.plunkett, Eli-T, yoroy: Configuration Single export form should not have REQUIRED (form-required) attribute

Issue #2456805 by rachel_norfolk, rudraram, Manjit.Singh, emma.maria, saki007ster, ChandeepKhosa, idebr, Vidushi Mehta, dcor, mgifford, jp.stacey, mikebell_: Clean up the "messages" component in Bartik

Issue #2569703 by phenaproxima, benjy, webchick: When migrating to the same theme with different region names, block will not migrate properly

Issue #2543258 by LKS90, hchonov, tassilogroeper, sasanikolic, Berdir, yched, plach: Entity references of untranslatable fields are not displayed in the correct  translation

Issue #2511306 by ElusiveMind, JeroenT, leolando.tan: Error: Call to a member function getElementsByTagName() in filter.module

Issue #2575605 by Berdir, jhedstrom: Field delete form does not display configuration dependencies that will be updated/deleted

Issue #2351667 by Maouna, zaporylie, Gábor Hojtsy: Can't add another language (due to validation errors)

Issue #2554755 by andypost, lauriii, joelpittet: BasicStringFormatter's nl2br() forces escaping *and* filtering — improve this