Issue #2159965 by Wim Leers, jessebeach: Fix two memory leaks + subtle bugs in Edit's JS (discovered by working on the Backbone upgrade in the D7 backport).

Issue #2062001 by InternetDevels, DeimoS: Replace user_access() calls with ->hasPermission() in language module.

Issue #2109433 by herom, dawehner, damiankloip: Replace user_access() through injected user accounts in views.

Issue #1987762 by damiankloip, vijaycs85, disasm, dawehner, tim.plunkett, kim.pepper, googletorp, becw, wamilton: Convert node_add_page() to a new style controller.

Issue #1983902 by vijaycs85, swentel, piyuesh23: Provide config schema to field types, widgets and storage in entity_reference module.

Issue #2005644 by Wim Leers, damiankloip, beejeebus, amateescu: Use client-side cache tags & caching to eliminate 1 HTTP requests/page for in-place editing metadata, introduce drupalSettings.user.permissionsHash.

Issue #1189804 by cosmicdreams, jessebeach, martin107, mgifford, dcmouyard, pwieck, smiro | Jeff Burnz: Convert aggregator-feed-source.html.twig to HTML5.

Issue #2158299 by damiankloip: ConfigEntityUnitTest does not check properties on all loaded entities.

Issue #1983136 by fubhy: Use 'instanceof' instead of class_implements() in \Drupal\Core\FileTransfe\FileTransfer.

Issue #2002708 by rahul.shinde, somepal, kerasai, arknoll: Remove unused local variables from core/includes/common.inc.

Issue #2135975 by larowlan, dawehner, a_thakur: Regression: Second level tabs for Permissions and Roles missing from admin/people/permissions and admin/pages/permissions pages.

Issue #1982954 by mdrummond, cbiggins, disasm, googletorp, dawehner, andypost, sidharthap, Xano: Convert dblog_top() to a controller.

Issue #2001206 by andypost, penyaskito, herom, Crell, ebeyrent, DmitryDrozdik: Replace drupal_container() with Drupal::service().

Issue #2081151 by Tim Bozeman, deneo, Pete B: Remove Unused local variables from the content_translation module.

Issue #2119237 by cosmicdreams, Crell, damiankloip: Use \Symfony\Component\Debug\Exception\FlattenException instead of \Symfony\Component\HttpKernel\Exception\FlattenException.

Issue #2130811 by alexpott, Gábor Hojtsy, vijaycs85, sun, Wim Leers: Use config schema in saving and validating configuration form to ensure data is consistent and correct.

Issue #916086 by jhodgdon, mcarbone, pwolanin, Albert Volkman: Search_excerpt() doesn't highlight words that are matched via search_simplify().