Issue #1932074 by mgifford, larowlan, nick_schuch: Tags Includes Label which isn't Associated with an Input Form.
Issue #2245001 by andypost: Remove unneeded CommentManagerInterface::getParentEntityUri().
Issue #1824360 by morningtime, Mixologic: Drupal sets $_SERVER['HTTP_REFERER'] to the empty string when no Referer: header was sent.
Issue #2250381 by mortendk: Remove the inner div wrapper from forms.
Issue #2100313 by dawehner, pwolanin: Move non-core services out of core.services.yml.