Issue #2501117 by catch, olli, Wim Leers, dawehner: Add static caching for PermissionsHashGenerator::generate()

Issue #2522002 by pwolanin, fgm, znerol: Do not strip www. from cookie domain by default because that leaks session cookies to subdomains

Issue #2417895 by David_Rothstein, Berdir, Wim Leers, willzyx, catch: AccountPermissionsCacheContext/PermissionsHashGenerator must special case user 1, since permissions don't apply to it

Issue #2347799 by andypost, almaudoh, znerol: Remove bugged session-related methods from AccountInterface

Issue #2463419 by Mile23, rpayanm, hussainweb: Clean-up Test members in core/tests - ensure property definition and use of camelCase naming convention

Issue #2428703 by Wim Leers: Add a 'user.permissions' cache context (was: "Should cache contexts be able to associate a cache tag?")

Issue #2338727 by znerol, almaudoh: Replace static SessionManager::$enabled property with WriteSafeSessionHandler class and resolve hidden circular dependency between SessionManager and SessionHandler

Issue #2347877 by znerol, Berdir: Move DrupalKernel::initializeCookieGlobals() into a SessionConfiguration service

Issue #2248977 by Berdir: Complete support for multi-value base fields in ContentEntitySchemaHandler and use it for the user.roles field

Issue #2328919 by Mile23, YesCT, tim.plunkett: Remove () from a bunch of @covers definitions in PHPUnit

Issue #2284103 by alexpott, fabpot, damiankloip, Xano, Xen, Berdir: Fixed Remove the request from the container.

Issue #697760 by sun: Replace getInfo() in tests with native phpDoc + annotations (following PHPUnit).

Issue #2178581 by damiankloip, penyaskito, Solthun: Add an AnonymousUserSession object in favour of using drupal_anonymous_user().

Issue #2096717 by -enzo-, chakrapani, sandipmkhairnar, JeroenT, ofry: Add parameter to User::getRoles() to exclude built in rids, (authenticated, anonymous).

Issue #2066535 by tim.plunkett, jsst, Berdir: Add EntityManagerInterface and stop typehinting with EntityManager.

Issue #2057869 by dawehner, jibran: Provide an alias for 'plugin.manager.entity' called 'entity.manager'.

Issue #1847002 by tim.plunkett, effulgentsia, msonnabaum: Move entity type classes from Drupal$provider\Plugin\Core\Entity to Drupal$provider\Entity.

Issue #1966334 by Alan Evans, fubhy, dawehner, ParisLiakos: Convert user_access() to User::hasPermission().