Issue #2835626 by 20th, vijaycs85, himanshu-dixit, naveenvalecha, Jo Fitzgerald, Wim Leers, xjm, dawehner, catch, alexpott: Rename & document Drupal\Core\EventSubscriber\AcceptNegotiation406 KernelEvents::VIEW event subscriber

Issue #2850034 by hampercm, dawehner, Wim Leers: CORS allow-origin '*' not possible because of cached headers

Issue #2853300 by Wim Leers: Standardize fatal error/exception handling: backtrace for all formats, not just HTML

Issue #1928868 by dawehner, fago, Gábor Hojtsy, Jose Reyero, tstoeckler, Wim Leers, Berdir: Typed config incorrectly implements Typed Data interfaces

Issue #2389335 by Berdir, naveenvalecha, claudiu.cristea, almaudoh, joachim, jibran: Deprecate entity.query service and replace with using the entity storage's getQuery() method

Issue #2156401 by alexpott, moshe weitzman, tedbow, dawehner, greg.1.anderson, phenaproxima, chris.smith, heddn, balsama, xjm, Mile23, izus, Manuel Garcia, sun, pwolanin, Berdir: Write install_profile value to configuration and only to settings.php if it is writeable

Issue #2113345 by dawehner, tedbow, Wim Leers, kristiaanvandeneynde, Crell, Grayside, klausi: Define a mechanism for custom link relationships

Issue #2834580 by Berdir: Move locale.translation_status state key to a separate key/value collection

Issue #2569119 by pwolanin, marvin_B8, jhedstrom, csheltonlcm, alexpott, dawehner, Fabianx, catch:  Use Crypt::hashBase64(), not hash('crc32b') or sha1 for placeholder tokens

Issue #2833469 by Wim Leers: Remove 'exception.custom_page_json' service: unused, dead, even with wrong arguments!

Revert "Issue #2156401 by alexpott, moshe weitzman, tedbow, dawehner, greg.1.anderson, phenaproxima, chris.smith, heddn, balsama, xjm, Mile23, izus, Manuel Garcia, sun, pwolanin, Berdir: Write install_profile value to configuration and only to settings.php if it is writeable"

This reverts commit 480eb82c.

Issue #2156401 by alexpott, moshe weitzman, tedbow, dawehner, greg.1.anderson, phenaproxima, chris.smith, heddn, balsama, xjm, Mile23, izus, Manuel Garcia, sun, pwolanin, Berdir: Write install_profile value to configuration and only to settings.php if it is writeable

Issue #2829588 by damiankloip, Fabianx, markcarver, dawehner, catch: Provide a "url.path.is_front" cache context to allow contributed themes to move global "is_front" variable back

Revert "Issue #2808063 by vaplas, martin107, Chi, Wim Leers, catch, dawehner, alexpott: LibraryDiscoveryParser::buildByExtension() doesn't validate that extensions exist"

This reverts commit a68c44f4.

Issue #2808063 by vaplas, martin107, Chi, Wim Leers, catch, dawehner, alexpott: LibraryDiscoveryParser::buildByExtension() doesn't validate that extensions exist

Issue #2824548 by faline, Ginovski, Wim Leers, Berdir, catch: Move token info cache to default cache bin

This reverts commit d189ff05.

Issue #2810303 by dawehner, Crell, tim.plunkett, klausi, Wim Leers: Reunite the router: One router to rule them all

Revert "Issue #2810303 by dawehner, Crell, klausi, tim.plunkett, Wim Leers: Reunite the router: One router to rule them all"

This reverts commit 21a86f3a.

Issue #2810303 by dawehner, Crell, klausi, tim.plunkett, Wim Leers: Reunite the router: One router to rule them all

Issue #2571633 by lauriii, tuutti, joelpittet: Remove TwigExtension setter methods - use constructor instead

Issue #2717207 by mpdonadio, dawehner, catch, alexpott: Add a time service to provide consistent interaction with time()/microtime() and superglobals

Issue #728702 by Crell, daffie, pillarsdotnet, pjcdawkins, Damien Tournoud, David_Rothstein, reglogge, amateescu, tim.plunkett, tstoeckler, xjm, hussainweb, alexpott, cweagans, Tor Arne Thune, catch: Visiting index.php should redirect to install.php if settings.php already has database credentials but database is empty

Issue #2773333 by Berdir, Juterpillar, Wim Leers, Fabianx, renukakulkarni: Form validation errors, status messages on form submission are shown after page refresh when form is rendered in block

Issue #1869548 by dawehner, jeqq, dmouse, slasher13, damiankloip, alexpott, nod_, AlxVallejo, chr.fritsch, yanniboi, effulgentsia, dixon_, -enzo-, Wim Leers, Crell, andypost, catch, Damien Tournoud, kim.pepper, linclark: Opt-in CORS support

Revert "Issue #1869548 by dawehner, jeqq, dmouse, damiankloip, nod_, AlxVallejo, chr.fritsch, yanniboi, effulgentsia, dixon_, -enzo-, Wim Leers, Crell, Damien Tournoud, andypost, kim.pepper, linclark, catch: Opt-in CORS support"

This reverts commit f2b71152.

Issue #88183 by Wim Leers, ahoeben, brianV, alexpott, kylebrowning, marvil07, chx, twistor, dawehner: Relative URLs in feeds should be converted to absolute ones

Revert "Issue #2278383 by Xano, dawehner, kim.pepper, twistor, joelpittet, Fabianx, Crell, jibran, alexpott, Wim Leers: Create an injectible service for drupal_set_message()"

This reverts commit ee222725.

Issue #2659070 by Wim Leers, dawehner, tic2000, Crell: REST requests without Content-Type header: unhelpful response significantly hinders DX, should receive a 415 response

Issue #2694555 by amateescu, vasi, dawehner, heddn, therealssj: Node revisions don't display translated

Issue #2278383 by Xano, dawehner, kim.pepper, twistor, joelpittet, Fabianx, Crell, jibran, alexpott, Wim Leers: Create an injectible service for drupal_set_message()

Revert "Issue #2403307 by dawehner, marthinal, tedbow, clemens.tolboom, Wim Leers, neclimdul, Crell, klausi, andypost, e0ipso: RPC endpoints for user authentication: log in, check login status, log out"

This reverts commit 18feefc3.

Issue #2403307 by dawehner, marthinal, tedbow, clemens.tolboom, Wim Leers, neclimdul, Crell, klausi, andypost, e0ipso: RPC endpoints for user authentication: log in, check login status, log out

Issue #2763157 by tim.plunkett, tedbow, chx, bojanz, twistor, neclimdul, dawehner, Xano, EclipseGc: Allow plugins to provide multiple forms

Revert "Issue #2773197 by jalpesh, tstoeckler: DefaultHtmlRouteProviderTest::testGetCollectionRoute() has wrong @covers"

This reverts commit a470bc0c.

Issue #2773197 by jalpesh, tstoeckler: DefaultHtmlRouteProviderTest::testGetCollectionRoute() has wrong @covers

Issue #1869548 by dawehner, jeqq, dmouse, damiankloip, nod_, AlxVallejo, chr.fritsch, yanniboi, effulgentsia, dixon_, -enzo-, Wim Leers, Crell, Damien Tournoud, andypost, kim.pepper, linclark, catch: Opt-in CORS support

Issue #2753681 by tedbow, Wim Leers, dawehner, neclimdul, catch: Move CSRF header token out of REST module so that user module can use it, as well as any contrib module

This reverts commit 4a95e650.