Issue #3048495 by jonathan1055, quietone, rajandro, Spokje, Pooja Ganjage, andypost, kishor_kolekar, msuthars, munish.kumar, ankithashetty, ayushmishra206, ravi.shankar, naveenvalecha, longwave, Gábor Hojtsy, alexpott, smustgrave, Lendude, xjm, adityasingh, daffie: Fix Drupal.Semantics.FunctionTriggerError coding standard

Issue #3373328 by catch, keshav.k, Ambient.Impact, longwave: ^10.1 CSS aggregation breaks during maintenance mode

Issue #956186 by catch, dpolant, SteffenR, yhahn, lauriii, nod_, sokrplare, rwaery.11, Supreetam09, effulgentsia, geek-merlin: Allow AJAX to use GET requests

Issue #3110517 by gapple, andypost, nod_, Wim Leers, smustgrave: Improve Drupal\Core\Ajax\AddCssCommand to accept an array of CSS assets

Issue #3081646 by Spokje, mallezie, richardbporter, VladimirAus, RoSk0: Follow up for "Adding Assertions to Drupal - Test Tools"

Issue #1014086 by catch, nod_, martin107, quietone, dww, mariacha1, Spokje, yogeshmpawar, pounard, Wim Leers, mfer, mikeytown2, mbutcher, moshe weitzman, Fabianx, borisson_, alexpott, donquixote, sun, andypost, dawehner: Stampedes and cold cache performance issues with css/js aggregation

Issue #1988968 by nod_, droplet, bnjmnm, viappidu, extect, jansete, olli, martin107, pmagunia, bartlangelaan, Wim Leers, zrpnr, KapilV, yogeshmpawar, Spleshka, Phil Wolstenholme, DuaelFr, agata.guc, alwaysworking, dawid_nawrot, andriic, keithdoyle9, gapple, lauriii, Martijn de Wit, jefuri, JMOmandown, larowlan, rubens.arjr, borisson_, joseph.olstad, jberube, gilgabar, Poindexterous, Aless86, jessebeach, bojanz, phma, aheimlich, heddn, phenaproxima, acbramley, codebymikey, cmlara, das-peter, matthiasm11, acolden, xjm, jrockowitz, pianomansam, clairemistry, John Pitcairn: Drupal.ajax does not guarantee that "add new JS file to page" commands have finished before calling said JS

Issue #3254250 by Spokje, longwave, catch, daffie: [Symfony 6] Retrieving a non-string value from "Symfony\Component\HttpFoundation\InputBag::get()" is deprecated

Issue #3222769 by bbrala, alexpott, longwave, Matroskeen: [November 8, 2021] Replace all list (array destructuring) assignment to the array syntax

Issue #3222251 by bbrala, longwave: [November 8, 2021] Replace all isset constructs with the null coalescing operator

Revert "Issue #3162016 by longwave, andypost, Hardik_Patel_12, catch, alexpott, daffie, Kristen Pol: [Symfony 6] Retrieving a non-string value from "Symfony\Component\HttpFoundation\InputBag::get()" is deprecated"

This reverts commit 8b8fc1ef.

Issue #3162016 by longwave, andypost, Hardik_Patel_12, catch, alexpott, daffie, Kristen Pol: [Symfony 6] Retrieving a non-string value from "Symfony\Component\HttpFoundation\InputBag::get()" is deprecated

Issue #2851394 by GoZ, hgunicamp, oknate, jungle, wolffereast, tameeshb, mmatsoo, ridhimaabrol24, jofitz, swarad07, tanc, shaktik, dimaro, shashikant_chauhan, MerryHamster, quietone, nitesh624, martin_q, boaloysius, gaurav.kapoor, nitvirus, ankithashetty, Munavijayalakshmi, kostyashupenko, leolando.tan, amit.drupal, ravi.shankar, akashkrishnan01, Swapnil_Kotwal, Saviktor, mrinalini9, anmolgoyal74, Venkatesh Rajan.J, shimpy, lomasr, Dinesh18, shubham.prakash, mahtab_alam, markdorison, cilefen, longwave, bleen, xjm, alexpott, gmaltoni: Fix grammar 'a' to 'an' when necessary

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 #2665992 by alexpott, klausi, heykarthikwithu, xjm, tstoeckler: @file is not required for classes, interfaces and traits

Issue #2597359 by Wim Leers: Require responses with attachments to contain the final attachment values

Issue #2559969 by alexpott: Make SafeStringInterface extend \JsonSerializable so we don't have to do so much string casting

Issue #2506581 by alexpott, Wim Leers, Fabianx, xjm, joelpittet, Cottser, dawehner: Remove SafeMarkup::set() from Renderer::doRender

Issue #2511472 by Wim Leers, Fabianx, dawehner: Refactor all usages of drupal_render()/Renderer::render() that break #2450993

Issue #2407195 by Wim Leers, Fabianx, joelpittet, lauriii, Crell: Move attachment processing to services and per-type response subclasses