Issue #1981368 by tim.plunkett, Crell, webchick: Convert all routes to 'module_name().foo_bar()' naming convention.

Issue #2041333 by tstoeckler, tim.plunkett: Inject the module handler into the entity access controller.

Issue #1987816 by pdrake, disasm, ParisLiakos, pguillard, vijaycs85, dawehner: Convert system_batch_page() to a new style controller.

Issue #1987624 by disasm, robeano, piyuesh23, dawehner | vijaycs85: Convert batch_test() page callbacks to a new style controller.

Issue #1987598 by disasm, mparker17, Niklas Fiekas, rabellamy | vijaycs85: Convert aggregator_test_feed() and aggregator_test_redirect() to a new style controller.

Issue #1945390 by Alan Evans, disasm, tim.plunkett, dawehner: Convert book_admin_edit() to a new-style FormInterface implementation.

Issue #1946466 by tim.plunkett, andypost, jibran, Unitoch, Crell, disasm | mtift: Convert all confirm_form() in user.module and user.pages.inc to the new form interface and convert route.

Issue #1974408 by kim.pepper, disasm, ParisLiakos, kshama_deshmukh, alexpott, theMusician, pwieck | mtift: Convert aggregator_page_source() to a Controller.

Issue #2003592 by andypost, mhagedon, webflo: Convert language_admin_add_form() and language_admin_edit_form() to a Controllers.

Issue #1987656 by mparker17: Convert common_test_js_and_css_querystring() to a new style controller.

Issue #1987572 by mrded, vijaycs85, Sean Buscay: Convert session_test() callbacks to a new style controller.

Issue #1979038 by dawehner, effulgentsia, tstoeckler: Convert views_ajax_autocomplete_taxonomy() to a Controller.

Issue #2084339 by alexpott: Fixed The configuration value system.maintenance.enabled should be moved to the state system.

Issue #2086447 by tim.plunkett, damiankloip: Remove 'View:' prefix from views block derivative admin labels.

Issue #2078285 followup by tim.plunkett: Fixed Add short-cut methods to the \Drupal class for generating URLs and links from routes.

Issue #1203886 by catch, sun, David_Rothstein, RobLoach, tim.plunkett, greggles, alexpott, DamienMcKenna: Remove the PHP module from Drupal core

Issue #2062573 by claudiu.cristea, tim.plunkett, Xano: Change notice: Add method defaultConfiguration() in ConfigurablePluginInterface.

Revert "Issue #2062573 by claudiu.cristea, tim.plunkett, Xano: Add method defaultConfiguration() in ConfigurablePluginInterface."

This reverts commit bf37effc.

Issue #1938316 by disasm, jaskho, stella, scor, tim.plunkett, jibran | Crell: Convert book_outline() to a new-style Controller.

Issue #2062573 by claudiu.cristea, tim.plunkett, Xano: Add method defaultConfiguration() in ConfigurablePluginInterface.

Issue #2087551 by donquixote: ViewsHandlerDiscovery: Remove ->pluginNamespaces setup from constructor.

Issue #2082117 by alexpott, xjm, tim.plunkett, heyrocker, beejeebus, sun: Fixed Install default config only when the owner and provider modules are both enabled.

Revert "Issue #2082117 by alexpott: Fixed Install default config only when the owner and provider modules are both enabled."

This reverts commit 4c304cb8.

Issue #2082117 by alexpott: Fixed Install default config only when the owner and provider modules are both enabled.