Issue #2313669 by dawehner, hussainweb, pfrenssen: Bring in egulias/EmailValidator for RFC compliant email address validation.

Issue #2261425 by ParisLiakos, alexpott: Streamline aggregator's entities rendering with rest of core.

Issue #2336355 by alexpott, Cottser: Fixed Refactor Attribute rendering so that class= is not printed.

Issue #1860594 by penyaskito, damiankloip, xjm, alexpott, sun: Ensure that randomString() always returns a character that needs to be escaped for HTML.

Issue #2333465 by marcvangend: Fixed Confusing exception message when Deriver plugin does not exist.

Issue #2250121 by mgifford, er.pushpinderrana, emma.maria, scresante, LewisNyman: Fixed Check for proper use of CSS Outline in Seven.

Issue #2336481 by er.pushpinderrana, ThomWilhelm | tim.plunkett: Replace Views usage of 'js settings' with 'js_settings'.

Issue #2336483 by er.pushpinderrana | tim.plunkett: Replace Views $form_state usage of '#page_title' with 'page_title'.

Issue #2339435 by YesCT, alexpott: Default no longer needs to be a property on Language or ConfigurableLanguage.

Issue #2338479 by rpayanm | dawehner: Convert \Drupal\views\Plugin\Derivative\ViewsMenuLink to use DeriverBase.

Issue #1822048 by dawehner, tim.plunkett, damiankloip, EclipseGc, martin107, neclimdul: Introduce a generic fallback plugin mechanism.

Issue #2228745 by Wim Leers, sqndr, nod_, undertext: Fixed Color module doesn't look for CSS files declared in a library.

Issue #2325801 by jibran, larowlan: Abstract contact module mail delivery out of form into a service.

Issue #2142441 by Garrett Albright: Fixed [Followup needed] CSS aggregator prepends data: URLs with paths.

Issue #2318677 by bluegriff | emma.maria: Fixed Password field focus is interfering with the password indicator strength bar.

Issue #2337619 by alexpott: Fixed Drupal\views\Plugin\views\query\Sql::buildCondition is checking for a non existing class.

Issue #2332885 by cs_shadow, Berdir, fago: Rename AllowedValuesInterface to OptionsProviderInterface.

Issue #2312093 by alexpott, yched, andypost, swentel | xjm: Rename FieldInstanceConfig to FieldConfig.

Issue #2063303 by dawehner, damiankloip, Wim Leers: Fixed A Drupal 8 AjaxResponse that must return a 403, returns a 403 and prints 'A fatal error occurred: '

Issue #2309889 by tim.plunkett, dawehner: Fixed DrupalKernel requires a Drupal\Core\*\Plugin directory for annotated classes to be discovered.

Issue #2337927 by effulgentsia, plach, fago: Fixed SqlContentEntityStorage::onFieldStorageDefinition(Create|Update|Delete)() is broken for base fields.

Issue #2329847 by tuutti, rachel_norfolk, Cottser | davidhernandez: Use Attribute to replace hard coded classes in language-negotiation-configure-form.html.twig.