Issue #2061911 by AlexandrTodorozhko, jibran, dawehner: Remove drupal_set_breadcrumb() and LegacyBreadcrumbBuilder in taxonomy module.
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.
Issue #2111163 by larowlan, geerlingguy: Fixed Can't Preview comments: Call to a member function id() on a non-object in comment.module, line 1371.
Issue #1374090 by droplet, Pancho, G.I.Joe, marthinal, brenda003, jfhovinne: Fixed Editing a comment still changes creation date.
Issue #2105833 by herom: Fixed documentation fix in ContentEntityBase.
Issue #2080459 by mrsinguyen: Remove Unused local variable () from /core/modules/locale/locale.install.
Issue #2067993 by rhm50: Remove Unused local variable  from /core/modules/node/lib/Drupal/node/Tests/NodeTranslationUITest.php.
Issue #2080563 by mrsinguyen: Remove Unused local variable  from /core/modules/comment/comment.admin.inc.
Issue #2080567 by mrsinguyen: Remove Unused local variable  from /core/modules/comment/lib/Drupal/comment/Plugin/views/row/Rss.php.
Issue #2080575 by mrsinguyen: Remove Unused local variable  from /core/modules/comment/lib/Drupal/comment/Tests/CommentRssTest.php.