Issue #2217975 by tim.plunkett: ConfigEntityBase::preSave() doesn't properly support renames; ConfigStorageController::save() preforms renames too early.
Issue #2219891 by TravisCarden: Duplicate declaration of hook_menu_link_defaults().
Issue #2213451 by andypost, bdone, benjy, penyaskito, chx, claudiu.cristea, damiankloip, gregboggs, InternetDevels, jessehs, jhedstrom, marvil07, mikeryan, pcambra, Xano, YesCT: Update Migrate API in core
Issue #2218293 by hellboy2k8, kokobutter: Add class to constant in docs for AccessInterface::KILL
Issue #2216567 by jhodgdon: Fill in @defgroup/topic docs for Best Practices overview.
Issue #2218319 by hellboy2k8, longwave: Clarify parameter in DefaultPluginManager::alterInfo() docs
Issue #2220649 by vaibhavjain: Fix typo in rdf.module comment
Fix mode of rdf.module from last commit
Issue #2216543 by jhodgdon, Berdir: Fill in topic/@defgroup docs for Cache overview.
Issue #2216695 by sun, Damien Tournoud, Wim Leers, brantwynn: Run-tests.sh broken on OS X ('Too many open files').
Issue #2093173 by longwave, Cyberschorsch, forbesgraham, sandipmkhairnar, damiankloip, rbayliss, grom358, harijari, InternetDevels, dawehner: Remove all calls to drupal_json_decode(), use \Drupal\Component\Utility\Json::decode().
Issue #2198571 by Xano: Menu.inc must not unset MenuLink::menu_name.
Issue #2222315 by alexpott: Random fail in \Drupal\system\Tests\Common\RenderTest.
Issue #2221535 by Cottser, joelpittet: TwigNodeVisitor's priority is too early and breaks some filters and macros.
Issue #2221929 by tstoeckler: ConfigNormalizerTest.php is misnamed.
Issue #1806538 by joelpittet, Cottser: Remove @todo about enabling strict_variables in Twig.
Issue #2216459 by sun: Add a KeyValueStoreInterface::has() method.
Issue #2219925 by tim.plunkett: Rename ConfigEntityInterface::getExportProperties() to toArray().
Issue #2221767 by alexpott: Migration configuration entities should not use the dependencies key.
Issue #2019123 by klausi, ygerasimov, Crell: Use the same canonical URI paths as for HTML routes.