Issue #2028113 by RoSk0: Make forum module css a library.
Issue #1987636 by kgoel, tim.plunkett, pdrake, vijaycs85, pguillard, jibran: Convert block_admin_demo() to a new style controller.
Issue #2103285 by xeniak: Fixed Feed aggregator configuration missing menu title.
Issue #2029857 by swentel, andrewmacpherson: Fixed Field plugin settings edit button doesn't show unless there is a settings summary.
Issue #2065481 by EclipseGc, twistor: Fixed Make the interaction of the Annotation, Reflection & Plugin Discovery make sense.
Issue #1841900 by olli, Sheldon Rampton: Fixed Node deletion should clear page cache.
Issue followup #1579810 by SeeSchloss, Albert Volkman, claudiu.cristea: Remove t() and format_string() from toolkit tests.
Issue #2080317 by rhm50: Remove Unused local variables from /core/modules/system/lib/Drupal/system/Tests/Database/SelectComplexTest.php.
Issue #2110779 by larowlan: Fixed Fatal error: Cannot use object of type Drupal\field\Entity\FieldInstance as array in Drupal/field_ui()/Form/FieldInstanceEditForm.
Issue #2004626 by plach, kfritsche, vijaycs85, Pancho, penyaskito: Make non-configurable field translation settings available in the content language settings.
Issue #2023563 by Berdir, smiletrl, fago: Convert entity field types to the field_type plugin.