Issue #1974210 by disasm, larowlan, jibran: Convert admin/structure/forum to a Controller.
Issue #2084057 by dawehner: Fixed Translate _title on routes.
Issue #2087449 by andypost: Fixed broken tests FieldAttachOtherTest->testFieldAttachCache().
Issue #1963394 by tim.plunkett, jibran, effulgentsia: Fixed ConfirmFormBase::getCancelPath() should allow for a route.
Issue #2088119 by David_Rothstein: Remove David_Rothstein from MAINTAINERS.txt for Drupal 8.
Issue #2083811 by yched, plach: Remove langcode nesting for fields in entity  structures.
Issue #1987718 by brianV, larowlan: Convert form_test_two_instances() to a new style controller.
Issue #2082117 by alexpott: 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 4c304cb8e794cb6d566d4a249ee2bd5306648969.
Issue #2082117 by alexpott, xjm, tim.plunkett, heyrocker, beejeebus, sun: Fixed Install default config only when the owner and provider modules are both enabled.
Issue #2087551 by donquixote: ViewsHandlerDiscovery: Remove ->pluginNamespaces setup from constructor.
Issue #2087725 by donquixote: Block module tests in tests/lib/Drupal instead of tests/Drupal.
Issue #2084309 by amateescu: Enable Entity reference in the standard profile.
Issue #2062573 by claudiu.cristea, tim.plunkett, Xano: Add method defaultConfiguration() in ConfigurablePluginInterface.
Issue #1938316 by disasm, jaskho, stella, scor, tim.plunkett, jibran | Crell: Convert book_outline() to a new-style Controller.
Revert "Issue #2062573 by claudiu.cristea, tim.plunkett, Xano: Add method defaultConfiguration() in ConfigurablePluginInterface."

This reverts commit bf37effc8a9180ebe34d42f2254270ad777c8044.
Issue #2062573 by claudiu.cristea, tim.plunkett, Xano: Change notice: Add method defaultConfiguration() in ConfigurablePluginInterface.
Issue #1203886 by catch, sun, David_Rothstein, RobLoach, tim.plunkett, greggles, alexpott, DamienMcKenna: Remove the PHP module from Drupal core
Issue #2078285 followup by tim.plunkett: Fixed Add short-cut methods to the \Drupal class for generating URLs and links from routes.
Issue #1203886 follow-up by RobLoach: Update CHANGELOG.txt to reflect PHP filter's removal.