Issue #1843650 by Mark Carver, jenlampton, Cottser: Remove the process layer (hook_process() and hook_process_HOOK).
Issue #2045919 by drupalrv: Replace all module_implements() deprecated function calls.
Issue #2031487 by fubhy, dawehner, pwolanin:  When replacing the upcasted values in the request attributes array, retain the original raw value too.
Issue #1201024 by pillarsdotnet, jbrown, tim.plunket: drupal_realpath() should describe when it should be used.
Issue #2035863 by jhedstrom: Expand phpunit tests for \Drupal\Component\Utility\Settings.
Issue #2043781 by pwolanin: Fixed Drupal::request()->attributes->get('account') may conflict with an account object loaded from the path.
Issue #2047753 by yched: LinkFormatter::prepareView() is useless.
Issue #2036253 by Wim Leers: Update CKEditor library to 4.2.
Issue #2050367 by amateescu: FieldInstanceFormBase is useless.
Issue #2050535 by jhedstrom: Expand phpunit tests for \Drupal\Component\Utility\NestedArray.
Issue #1957346 by dawehner, olli, damiankloip, jibran, ParisLiakos: Add some settings on the block display to allow overrides on the block instance configuration.
Issue #2041423 by yched: Rely on 'provider' instead of 'module' for Field plugin types.
Issue #1987660 by dougvann, ygerasimov, vijaycs85, marcingy: Convert config_sync() to a new style controller.
Issue #2044355 by dawehner: Move the link display to the middle column.
Issue #1860434 by jessebeach, Mark Carver, Wim Leers, droplet: Refactor the Toolbar JavaScript to use Backbone; fix several poorly functioning behaviors.
Issue #2050821 by xjm: Add larowlan as a component maintainer for comment.module.
Issue #2051847 by dawehner: Fixed AnnotatedClassDiscovery::getDefinitions is critically slow when viewing nodes with comments.
Issue #2017207 by Berdir, marcingy: Complete conversion of users to Entity Field API.
Issue #2015691 by plopesc, swentel: Convert field type to typed data plugin for number module.
Issue #2047475 by plopesc, yched: Fixed viewElements method contains references to  which does not exist.