Issue #2328411 by dawehner, geerlingguy, herom: Convert all permissions to yml files and permission callbacks.

Issue #2335659 by tim.plunkett, dawehner, effulgentsia, sun: Remove FormState ArrayAccess usage from core.

Issue #2334405 by almaudoh, drunken monkey: Clean up documentation links to functions moved to render element classes

Issue #2313931 by Berdir: Merge ['controller'] with ['build_info']['callback_object'] and add a method for it.

Issue #2299677 by er.pushpinderrana, gauravkhambhala | jhodgdon: Fix up annotation-related topics a bit.

Issue #2145633 by Jose Reyero, Gábor Hojtsy | YesCT: Use standard discovery facility in TypedConfigManager instead of one-off implementation.

Issue #2301317 by pwolanin, dawehner, Wim Leers, effulgentsia, YesCT, xjm, alexpott: MenuLinkNG part4: Conversion.

Revert "Issue #2301317 by pwolanin, effulgentsia, Wim Leers, dawehner, alexpott: MenuLinkNG part4: Conversion."

This reverts commit fd2db9cd.

Issue #2301317 by pwolanin, effulgentsia, Wim Leers, dawehner, alexpott: MenuLinkNG part4: Conversion.

Issue #2309405 by undertext, er.pushpinderrana: Add note to Annotations topic about PluginID shorthand annotation if there is only an ID

Issue #2149197 by penyaskito, mikey_p, vijaycs85, herom: Replace format_interval with \Drupal::service('date')->formatInterval().

Issue #2297947 by amitgoyal, andrewmacpherson: Clean up API docs for hook_file_mimetype_mapping_alter().

Issue #2300297 by er.pushpinderrana, joshi.rohit100 | lmeurs: Hook_file_download() also controls temporary files.

Issue #2287727 by yched, swentel, alexpott: Rename Field[instance]Config classes and entity types (again).

Issue #2061977 by InternetDevels, kim.pepper, ianthomas_uk, herom, rhm50, naveenvalecha, andypost,  mandar.harkare, sergeypavlenko, sidharthap, SIz, tkuldeep17: Replace user_access() calls with ->hasPermission() in all core modules except user.

Revert "Issue #2061977 by InternetDevels, kim.pepper, ianthomas_uk, herom: Replace user_access() calls with ->hasPermission() in all core modules except user."

Fixing commit credit.

This reverts commit 25afa810.

Issue #2061977 by InternetDevels, kim.pepper, ianthomas_uk, herom: Replace user_access() calls with ->hasPermission() in all core modules except user.

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

Issue #2292025 by tim.plunkett: Convert BreadcrumbBuilderInterface applies() and build() to use RouteMatch.

Isssue #2263047 by joshi.rohit100, amitgoyal: Clean up hook_help example so it complies with hook_help standards

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

Issue #2246665 by jaredsmith, martin107, YesCT, filijonka, tstoeckler: Typehint with Drupal\Core\Language\LanguageInterface instead Drupal\Core\Language\Language.

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

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

Issue #2263047 by martin107, sachin_s: Move hook_help to system.api.php, remove now-empty help.api.php, and add explanation of all that hook_help does and update it so it fits d8 behavior

Issue #1524550 by superspring, joachim, David Hernández, marthinal, socketwench, subson | jfinkel: Fixed queue cron workers can't signal a broken queue.

Issue #2141221 by thedavidmeister, joachim, anemes: Add docs to hook_update_N to explain the sandbox usage