Issue #2324083 by er.pushpinderrana, martin_q: Fix up description of return value from NestedArray::getValue()
Issue #1987882 by disasm, vijaycs85, penyaskito, kim.pepper, likin, YesCT, InternetDevels, dawehner, wamilton, Letharion, katbailey, googletorp, tim.plunkett, acrollet, neetu morwani: Convert content_translation routes to a new style controller.
Issue #2319719 by Tim Bozeman, pcambra, undertext, bojanz: Fixed Widget validation crashes on ItemList violations.
Issue #2250243 by dawehner, sun: Remove needless ContainerAware dependency from AuthenticationManager.
Issue #2324113 by penyaskito: Move Drupal/Core/Utility/Color to Drupal/Component/Utility/Color.
Issue #2309501 by garphy | dawehner: Use plugin IDs instead of titles for toolbar classes.
Issue #2271251 by ParisLiakos, undertext, JeroenT, StevenPatz, tim.plunkett: Remove usages of watchdog() from non-form and non-controllers.
Issue #2290267 by jhodgdon: Image-related plugin classes need more docs links.
Issue #2324293 by larowlan: Fixed PHPUnit code coverage broken.
Issue #2323521 by herom: Fixed a couple of t() calls in core.
Issue #2318847 by tstoeckler: Fixed ExtensionDiscovery does not allow the value of the "type" key to be wrapped in quotes.
Issue #2324945 by andypost: Fixed clean-up @todo after 2155635.
Issue #2322933 by Xano: Fixed Module list form fatals due to incorrect route configuration.
Issue #2315333 by tim.plunkett: Move block plugin code out of block.module.
Issue #2321341 by blueminds: Fixed EntityAccessControlHandler::createAccess() does not pass into the hooks the entity bundle.
Issue #2322809 by chx, dawehner, tim.plunkett: Tighten routing security by access checking in matchRequest.
Issue #2228093 by dawehner | sun: Modernize theme initialization.
Issue #2324783 by JayeshSolanki | andypost: Fixed CommentLinkBuilderTest::setUp() should be protected.
Issue #2325385 by dawehner: Fixed Ensure that the error handler does not throw exception itself.
Issue #2291833 by andypost, kgoel | Crell: Standardize taxonomy term entity route names.