Issue #2843147 by Wim Leers, e0ipso, gabesullice, dagmar, xjm, effulgentsia, webchick, dww, Berdir, dawehner, colan, mgalalm, govind.maloo, das-peter, jludwig, ndobromirov, martin107, abhisekmazumdar, nuez, catch, amateescu, pwolanin, mallezie, borisson_, jibran, voleger, plach, GeduR, Grimreaper, apupiales, Sutharsan, RenatoG, michaellander, sergesemashko, dbt102, hampercm, dremy, rpayanm, chriscalip, tstoeckler, keopx, skyredwang, Spleshka, RajeevK, matthew.perry, kaysenlau, jazzdrive3, dsdeiz, ebeyrent, acbramley, deviantintegral, samuel.mortenson, DamienMcKenna, mohit_aghera, ibustos, dpolant, garphy: Add JSON:API to core as a stable module

Issue #3017812 by ibustos, joachim: Language selector is immune to hook_entity_field_access in entity forms

Issue #2935256 by Jo Fitzgerald, voleger, kim.pepper, ibustos, Yogesh Pawar, catch, jibran: Remove all usages of drupal_get_message and drupal_set_message in modules

Issue #1927648 by damiankloip, Wim Leers, marthinal, tedbow, alexpott, Arla, juampynr, garphy, bc, ibustos, eiriksm, larowlan, dawehner, gcardinal, kylebrowning, vivekvpandya, Sam152, neclimdul, pnagornyak, drnikki, queenvictoria, gaurav.goyal, kim.pepper, Berdir, clemens.tolboom, blainelang, moshe weitzman, webchick, linclark, dabito, skyredwang, Dave Reid, gabesullice, dagmar, klausi, andypost, aheimlich, slashrsm, pwolanin, xjm, catch, amateescu: Allow creation of file entities from binary data via REST requests

Revert "Issue #1927648 by damiankloip, Wim Leers, marthinal, tedbow, Arla, alexpott, juampynr, garphy, bc, ibustos, eiriksm, larowlan, dawehner, gcardinal, vivekvpandya, kylebrowning, Sam152, neclimdul, pnagornyak, drnikki, gaurav.goyal, queenvictoria, kim.pepper, Berdir, clemens.tolboom, blainelang, moshe weitzman, linclark, webchick, Dave Reid, dabito, skyredwang, klausi, dagmar, gabesullice, pwolanin, amateescu, slashrsm, andypost, catch, aheimlich: Allow creation of file entities from binary data via REST requests"

This reverts commit fd8233c7.

Issue #1927648 by damiankloip, Wim Leers, marthinal, tedbow, Arla, alexpott, juampynr, garphy, bc, ibustos, eiriksm, larowlan, dawehner, gcardinal, vivekvpandya, kylebrowning, Sam152, neclimdul, pnagornyak, drnikki, gaurav.goyal, queenvictoria, kim.pepper, Berdir, clemens.tolboom, blainelang, moshe weitzman, linclark, webchick, Dave Reid, dabito, skyredwang, klausi, dagmar, gabesullice, pwolanin, amateescu, slashrsm, andypost, catch, aheimlich: Allow creation of file entities from binary data via REST requests

Issue #2784015 by amateescu, jlbellido, Gogowitsch, krknth, ibustos: Widget validation crashes on ItemList violations for widgets with a custom errorElement() implementation

Issue #2609504 by Lendude, mohit_aghera, ibustos: Default People display shows date since unix timestamp 0 as 'Last access'