Issue #2932774 by harsha012, gaurav.kapoor, neelam.chaudhary, dpi: Update docs for getEmail, can return null

Issue #2697909 by pguillard, himanshugautam, snehi, aburrows, jhodgdon: Fix "login (noun/adjective)" vs. "log in (verb)" in comments (and logout/log out)

Issue #2665992 by alexpott, klausi, heykarthikwithu, xjm, tstoeckler: @file is not required for classes, interfaces and traits

Issue #2576533 by alexpott, stefan.r, Wim Leers, dawehner, xjm, effulgentsia, catch: Rename SafeStringInterface to MarkupInterface and move related classes

Issue #2112679 by Berdir, damiankloip, nlisgo, krlucas, lokapujya, m1r1k, piyuesh23, blueminds, stefan.r, subhojit777, dawehner, kerby70, Dustin LeBlanc, znerol, JeroenT, borisson_, scor, amitgoyal, s_leu: getUsername() should return the username getDisplayName() for the formatted user name

Issue #2545972 by alexpott, joelpittet, ericjenkins, stefan.r, Wim Leers, Cottser: Remove all code usages SafeMarkup::checkPlain() and rely more on Twig autoescaping

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

Issue #2457887 by prateekMehta, stefan.r, rpayanm, alexpott: Use Utility\SafeMarkup class instead of Utility\String for placeholder(), checkPlain(),format() functions

Issue #950534 by mparker17, mgifford, Mixologic, jbloomfield, erinclerico, theMusician, wmostrey | zirvap: [policy] Consistently use email instead of e-mail in Drupal.

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 #2089461 by thedavidmeister, deneo, Alan D., dsdeiz, stpaultim: Convert all calls to check_plain() in core to Drupal\Component\Utility\String::checkPlain() in core/lib.

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

Issue #1825332 by Berdir, ParisLiakos, andypost, dawehner, jrglasgow, aspilicious: Introduce an AccountInterface to represent the current user.