Issue #2242749 by znerol, torotil, rszrama, larowlan, dawehner, penyaskito, tim.plunkett, sun, Damien Tournoud, David_Rothstein,  effulgentsia: Fixed Port Form API security fix SA-CORE-2014-002 to Drupal 8.
Issue #2072043 by frob, er.pushpinderrana, Mile23, cweagans: Add link to examples project in README.txt
Issue #2354005 by benelori: Fix sample function body for hook_field_formatter_info_alter()
Issue #2349263 by Désiré, zaporylie, hansfn: Fixed Add support for semantic version numbers in installer.
Issue #2342551 by larowlan: Implement ThirdPartySettingsInterface in contact module for contact form config entity.
Issue #2226323 by kpv | danylevskyi: Fixed CompositeFormElementTrait causes identical HTML ids for element and its wrapper.
Issue #2349605 by larowlan: Fixed EntityReferenceItem is fragile about entity save order.
Issue #2350941 by rpayanm | dawehner: Simplify $language max weight code using max().
Issue #1434670 by AlPotapov, bleen18 | ericduran: Add test for verticle_tabs default.
Issue #2353823 by ultimike: D6->D8 Migration missing variable: cache.
Issue #2352385 by andypost: Standardize book & forum entity route names.
Issue #2354177 by yched: Shortcut::getRouteParams() should be named getRouteParameters() for consistency.
Issue #2340667 by YesCT, Pedro Lozano, alexpott, martin107: Protect Drupal\Core\Language\Language::id, and use getId().
Issue #2354699 by mpdonadio | dawehner: Fixed Watchdog entries caused by toolbar module.
Issue #2354301 by jmolivas: Fixed Composer require.php : invalid version constraint.
Issue #2302799 by alexpott, penyaskito: Fixed InstallerTestBase tests can not be run locally.
Issue #2350437 by rpayanm, hussainweb, Noe_ | dawehner: Mark unicode.inc functions as deprecated.
Issue #2354107 by mpdonadio, tstoeckler: Fixed field_ui_help() should check for the existence of modules before linking to their routes.
Issue #2353347 follow-up by dawehner, alexpott: Fixed Random failure in DisplayPathTest.
Issue #2235363 by jhodgdon, jessebeach, alexpott, Gábor Hojtsy: Document config dependencies.