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 #2208429 by dawehner, almaudoh, alexpott, jibran, Xano, donquixote, amitgoyal, bircher, stefan.r, Mile23, alvar0hurtad0, Berdir, andypost, larowlan: Extension System, Part III: ExtensionList, ModuleExtensionList and ProfileExtensionList

Issue #1472946 by gnuget, andypost, mmrares, sidharthap, kiamlaluno, Himanshu5050, dineshkumares, amit.drupal: Remove usages of deprecated function drupal_realpath() throughout core functions

Issue #2901562 by mfernea, Jo Fitzgerald, Yogesh Pawar, 3ssom, Mile23, borisson_: Fix 'Squiz.WhiteSpace.SuperfluousWhitespace' coding standard

Issue #2784443 by tedbow, Wim Leers, Cottser, tim.plunkett, droplet, drpal, nod_, lauriii: Move off-canvas functionality from Settings tray module into drupal.dialog.ajax library so that other modules can use it

Issue #2572787 by alexpott, mfernea, attiks, andriyun, andypost, RoSk0, hussainweb, klausi, martin107: Fix 'Drupal.WhiteSpace.CloseBracketSpacing' coding standard

Issue #2873768 by dhopki12, WidgetsBurritos, harsha012, Mile23, catch: Add Change record to @deprecated for *.modules constants

Issue #2759789 by mfernea, Mile23, andriyun, dawehner, klausi: Fix 'Drupal.Semantics.FunctionAlias' coding standard

Issue #2887860 by drumm, Cottser: Allow attributes to be passed to admin blocks (admin_block theme hook)

Issue #2847651 by murrow, rachel_norfolk, john@johncook.me.uk, mpdonadio, BarisW, droplet, tstoeckler, andrewmacpherson, prabhu9484, ok_lyndsey, benjifisher, yoroy, lauriii, martin107: Improve timezones selector with optgroups

Issue #2776975 by joelpittet, dawehner, tim.plunkett, xjm, pfrenssen: March 3, 2017: Convert core to array syntax coding standards for Drupal 8.3.x RC phase

Issue #2807785 by claudiu.cristea, OwilliwO, mpdonadio, cllamas, klausi, xjm, Berdir, Wim Leers, Mile23, daffie, Prashant.c, dawehner, sneha_surve: Move global constants from *.module files into interfaces

Issue #665790 by chrisrockwell, Sumit kumar, lauriii, joelpittet, sun, vulcanr, vaplas, yoroy, leahtard, tompagabor, aspilicious, ckrina, Gábor Hojtsy, David_Rothstein, Manuel Garcia, rootwork, nod_, kostyashupenko, pguillard, Bojhan, droplet, typhonius, wturrell, mgifford, webkenny, cosmicdreams, tkoleary, YesCT, marcvangend, markabur, LewisNyman, mrfelton, oriol_e9g, prabhu9484, catch, hedrickbt, tsvenson, longwave, dww, kika, borisson_, rdellis87, realityloop, klonos: Redesign the status report page

Issue #2838095 by cilefen, pjcdawkins: Only one site slogan character in site slogan when using PHP 7.1

Issue #2754929 by joelpittet, markcarver: Internal path(s) missing for "html" and "page" theme hook suggestions on <front>

Issue #2784951 by Shashwat Purav, er.pushpinderrana: Comment contains a reference to a function that doesn't exist anymore

Issue #2647916 by Lendude, Wim Leers, dawehner: Views ajax modals stop working in certain scenarios: due to JS settings caching, AJAX responses may set wrong ajaxPageState.libraries, causing problems for subsequent AJAX requests/responses

Issue #2048887 by pguillard, yoroy, Anul, rpayanm, meeli, ifrik, Bojhan, xjm: Cleanup user interface text on appearance/settings

Issue #2705809 by juampynr, dawehner, damiankloip, lahoosascoots: Queue garbage collection is not correctly run on cron

Issue #2716661 by anoopjohn: Fix 'Drupal.Commenting.FunctionComment' coding standard - Issues related to @see references

Issue #2714375 by kiamlaluno, malavya: hook_form_alter() implementations are still commented with a reference to a form builder that doesn't exist anymore

Issue #2666792 by bojanz, dawehner, edysmp, heddn: Provide a route provider for add-page of entities

Issue #2578995 by pguillard, jhodgdon, r_sharma08, ifrik, snehi, Manjit.Singh, himanshugautam, yoroy, xjm: Update the link descriptions on the Configuration page for the system module

Issue #2679953 by malavya, subharanjan, AjitS, aditya_anurag, mikebell_, jhodgdon: Replace mentions of url() in docs

Issue #2663264 by alexpott, catch: Queue's database backend is a core service but it depends on system install

Issue #2595695 by Wim Leers, alexpott, mfb, Crell, cilefen, dawehner: 4xx handling using subrequests: no longer able to vary by URL

Issue #2620176 by joelpittet, markcarver, hatuhay: Logo image settings form is broken, breaks per-theme overrides and can result in data loss

Issue #2388247 by pguillard, snehi, joelpittet, sriharsha.uppuluri: Documentation refers to _theme() function, which has been removed

Issue #2507031 by claudiu.cristea, dawehner, Wim Leers, mitrpaka, webflo, catch, piyuesh23, beejeebus, Berdir: Optimize automatic cron subscriber by moving automatic cron to a module

Revert "Issue #2507031 by claudiu.cristea, dawehner, Wim Leers, mitrpaka, webflo, catch, piyuesh23, beejeebus: Optimize automatic cron subscriber by moving automatic cron to a module"

This reverts commit 6e0ce080.

Issue #2507031 by claudiu.cristea, dawehner, Wim Leers, mitrpaka, webflo, catch, piyuesh23, beejeebus: Optimize automatic cron subscriber by moving automatic cron to a module

Issue #2151113 by akalata, joelpittet, mdrummond, mfernea, martin107, mr.baileys, Cottser: Convert theme_system_modules_uninstall() to Twig

Issue #2571665 by jhodgdon, ifrik: Review the hook_help for the system module - should mention status report

Issue #2429191 by claudiu.cristea, amateescu, yched, nlisgo, Berdir, alexpott, klausi, Wim Leers, xjm, catch: Deprecate entity_reference.module and move its functionality to core