Issue #2641608 by Mac_Weber: Replace deprecated usage of  entity_create('rdf_mapping') with a direct call to RdfMapping::create()

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 #2560783 by stefan.r, joelpittet, lauriii, Cottser, Sutharsan, kgoel, justAChris, Gábor Hojtsy, dawehner, jhodgdon, effulgentsia, xjm, andypost, googletorp: Replace !placeholder with :placeholder for URLs in hook_help() implementations

Issue #2556785 by Antti J. Salminen, lauriii: Specific preprocess functions doesn't support second level without first level

Issue #2557871 by alexpott: Remove all usages SafeMarkup::checkPlain() from template preprocess functions and attributes

Issue #2214241 by mortendk, mdrummond, lauriii, galooph, ShaunDychko, jjcarrion, b0unty, joelpittet, scor, amitgoyal, aboros, Manuel Garcia, hkirsman, BLadwin, hussainweb, sushilkr, emma.maria, nlisgo, yched, LewisNyman, davidhernandez, mikl, camoa, dman, dodorama: Field default markup - removing the divitis

Issue #2501697 by ZenDoodles, leslieg, Les Lim, pfrenssen, joelpittet, hestenet, YesCT, scor, Cottser, xjm, lauriii, dsnopek, alexpott, akalata, Wim Leers, acouch, kgoel: Remove SafeMarkup::set in rdf_preprocess_comment()

Issue #2491155 by mikeburrelljr, Mac_Weber, opdavies: Update drupal.org and kernel.org URLs in core modules (Follow-up to 2489912)

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

Issue #2226863 by cs_shadow, filijonka, joelpittet, pguillard: Update stale references to theme functions that have been converted to Twig

Issue #2324371 by lauriii, aneek, chx, joelpittet, webflo, Fabianx, rteijeiro: Fix common HTML escaped render #key values due to Twig autoescape.

Issue #2350877 by dawehner, Wim Leers, hussainweb: Deprecate/rename drupal_add_feed(), drupal_add_html_head(), drupal_add_html_head_link(), drupal_add_http_header(), and allow to be set declaratively in #attached.

Issue #2246675 by rpayanm, johnstorey, holly.ross.drupal | mgbellaire: Remove all unnecessary 'template' lines in hook_theme() declarations.

Issue #2340251 by iMiksu, alexpott, tim.plunkett, dawehner, Wim Leers: Remove most remaining url() calls.

Issue #2336965 by cilefen: Move the XHTML inline comment in template_preprocess_rdf_metadata to the template file.

Issue #2226493 by Berdir, Wim Leers, m1r1k, mr.baileys, andypost, scor, cbr, joelpittet: Apply formatters and widgets to Node base fields.

Issue #597236 by Berdir, catch, msonnabaum, Xano, Wim Leers, jhedstrom, amateescu, corvus_ch, swentel, moshe weitzman, Gábor Hojtsy, riccardoR, killes@www.drop.org, et al: Add entity caching to core.

Issue #1825952 by Fabianx, joelpittet, bdragon, heddn, chx, xjm, pwolanin, mikey_p, ti2m, bfr, dags, cilefen, scor, mgifford: Turn on twig autoescape by default

Issue #2216535 by jhodgdon, Berdir: Replace Node overview topic and Node API topic with Entity Hooks topic.

Issue #1987418 by joelpittet, drupalninja99, rakhimandhania, Manuel Garcia, scor, shanethehat, Cottser, LinL, LewisNyman, minneapolisdan: User.module - Convert theme_ functions to Twig.

Issue #2225965 by lokapujya, djevans | scor: Move taxonomy term RDFa markup inside title_suffix (similar to the edit and node markup).

Issue #2238217 by effulgentsia, neclimdul, martin107, tim.plunkett, cweagans, kim.pepper, xjm: Introduce a RouteMatch class.

Issue #2231003 by kay_v, djevans, lokapujya, seiplax | scor: GetPreparedFieldMapping() should return NULL when there are no mappings.

Issue #2089331 by grom358 | thedavidmeister: [meta] Replace calls to check_plain() with Drupal\Component\Utility\String::checkPlain().

Issue #2004252 by mortendk, babruix, dasjo, joelpittet, visabhishek, cwells, jenlampton, Dragan Eror, nikhiltri, minneapolisdan, Manuel Garcia, sarahjean, acouch | scor: Node.html.twig template.

Issue #2183113 by jhodgdon, effulgentsia, tim.plunkett, herom, larowlan: Update hook_help signature to use route_name instead of path.

Issue #1992954 by lokapujya, sphism, cwells, djevans, Stefan Freudenberg, Gaelan: Trimming of long usernames results in incorrect RDF.

Issue #1778410 by linclark, ashepherd, Stefan Freudenberg, tim.plunkett, kay_v, adorsk: Throw exception when RDF namespaces collide.

Issue #2002134 by fago, yched, amateescu, effulgentsia: Move TypedData metadata introspection from data objects to definition objects.