Issue #3164210 by jungle, sylus, Akhildev.cs, dww: Refactor array_merge() usage in loops as possible for performance

Issue #3097889 by longwave, paulocs, anushrikumari, SenthilMohith, andypost, Gábor Hojtsy, catch, lauriii, Wim Leers: Remove deprecated theme functions

Issue #3106216 by Spokje, longwave, alexpott, apaderno, Hardik_Patel_12, daffie: Remove unused variables from core

Issue #697946 by voleger, pguillard, pillarsdotnet, andypost, alansaviolobo, alexpott, vaibhavjain, MerryHamster, sja112, kim.pepper, shaktik, ravi.shankar, Pooja Ganjage, daffie, Mile23, legolasbo, joelpittet, almaudoh, xjm, Berdir, scor: Properly deprecate module_load_include() and move it into \Drupal::moduleHandler() service

Issue #3247619 by Lendude, danflanagan8, FiNeX, beatrizrodrigues: "Place a colon after the label" not working on grouping field label on views

Issue #3175287 by murilohp, quietone, SivaprasadC, ankithashetty, anmolgoyal74, sarvjeetsingh, xjm, longwave: Remove accidentally duplicated words in code comments

Issue #3210129 by quietone, murilohp, xjm: Fix spelling for words used once, beginning with 'a' -> 'd', inclusive

Issue #3131348 by Spokje, jungle, mondrake, vsujeetkumar, sja112, kishor_kolekar, Hardik_Patel_12, mrinalini9, yogeshmpawar, daffie: Replace assertions involving calls to empty() with assertEmpty()/assertNotEmpty()/assertArrayNotHasKey()

Issue #3129043 by mondrake, daffie, ankithashetty, ravi.shankar, alexpott, Beakerboy, catch: Move core database drivers to modules of their own

Issue #2652652 by dawehner, Sam152, Charlie ChX Negyesi, Manuel Garcia, mikemiles86, minorOffense, Lendude, jibran, alexpott, xjm, effulgentsia, webchick: Provide a relationship from the revision table to the main table

Issue #3232097 by daffie, longwave: [Symfony 6] Add "array" type hint to methods overriding Symfony\Component\EventDispatcher\EventSubscriberInterface::getSubscribedEvents()

Issue #3253568 by Spokje, paul121, rviner, longwave, alexpott, quietone: Error: Cannot use object of type Drupal\Core\Render\Markup as array in Drupal\Core\Render\Renderer->doRender() (line 218. When checkbox 'Use field template' is checked

Issue #3250482 by quietone, daffie: The docblock of \Drupal\views\Plugin\views\cache\CachePluginBase::cacheSetMaxAge() is wrong

Issue #3207567 by Spokje, quietone, guilhermevp, yogeshmpawar, daffie, alexpott: Fix Drupal.Commenting.FunctionComment.MissingParamComment

Issue #3248013 by daffie, longwave: [Symfony6] The Drupal\Tests\views\Unit\Plugin\argument_default\QueryParameterTest fails for Symfony 5.4

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

Issue #3248649 by alexpott: \Drupal\views\Plugin\views\display\PathPluginBase::alterRoutes() can become very slow on a site with lots of entities and JsonAPI

Issue #2569381 by alx_benjamin, init90, vasi, deepakaryan1988, Munavijayalakshmi, Lendude, DuaelFr, alexpott, dawehner: Drupal\views\Plugin\views\area\Result does an unnecessary XSS::adminFilter()

Issue #3161223 by andypost, longwave, Hardik_Patel_12, alexpott, jungle, dww: Use PHP 7.0 "spaceship" operator for user sort functions where possible

Issue #2909370 by Spokje, mfernea, neclimdul, zaporylie, quietone, xjm, osman, BartoszUrbaniak: Fix 'Drupal.Commenting.VariableComment.IncorrectVarType' coding standard

Issue #3239313 by alexpott, larowlan: \Drupal\views\Controller\ViewAjaxController causes deprecations on PHP 8.1

Issue #3236798 by alexpott: \Drupal\Core\Datetime\DateFormatter::formatInterval() causes deprecations in PHP 8.1

Issue #2938969 by msankhala, dhirendra.mishra, paulocs, TR, MerryHamster, alexpott, jofitz, longwave, Manuel Garcia, tameeshb, boaloysius, Yasiru Nilan, xjm, wturrell, ritzz, ZeiP, darrenwh: Replace drupal_render() in docblock and comments outside of @param, @return, @Link, @see and outside of @code - @endcode

Issue #3230690 by Anul: Incorrect documentation in Drupal\views\Plugin\views\display::viewExposedFormBlocks)()

Issue #2794261 by longwave, andypost, Oleksiy, Mile23, pguillard, sorlov, voleger, jurgenhaas, Chi, borisson_, paulocs, Wim Leers, Berdir: Deprecate render() function in common.inc

Issue #3225328 by mxr576, Berdir, longwave: Improve page performance by sorting cache contexts/tags on-demand

Issue #2473875 by znerol, alexpott, andypost, kim.pepper, amit.drupal, raman.b, martin107, joachim: Convert uses of $_SESSION to symfony session retrieved from the request

Issue #2347783 by kim.pepper, andypost, almaudoh, gumanist, aleevas, rodrigoaguilera, Berdir, saurabh-2k17, Spokje, dhirendra.mishra, alexpott, paulocs, izus, Wim Leers, KapilV, naveenvalecha, anmolgoyal74, subson, yo30, harsha012, mrinalini9, daffie, voleger, dww, fietserwin, tim.plunkett, joachim, larowlan: Deprecate drupal_get_path() and drupal_get_filename() and replace with ExtensionList::getPath() and ExtensionList::getPathname()

Issue #3221933 by marcoscano, alexpott, owenbush: PHP Notice when using "left_formula" in views join

Issue #3195178 by mstrelan, Lendude, Graber, tobiberlin, texas-bronius: Views table format sorting + distinct results in a SQL error on some db engines

Issue #2897638 by Spokje, claudiu.cristea, istavros, PaulDinelle, drclaw, Giuseppe87, KapilV, Lendude: Views exposed sort identifiers are not configurable

Issue #3021804 by andypost, scott_euser, YurkinPark, mrinalini9, voleger, Lendude, longwave: Remove optional dependency on menu_ui module in \Drupal\views\Plugin\views\wizard\WizardPluginBase

Issue #2719649 by Spokje, harsha012, jofitz, vprocessor, nikitagupta, cburschka, rasikap, hitesh-jain, quietone, longwave, mfernea, andypost, klausi, Malevi4, crazyrohila: Fix 'Drupal.Commenting.InlineComment.SpacingBefore' coding standard

Issue #2681947 by vasi1186, dan2k3k4, Leksat, Lendude, raman.b, yogeshmpawar, quietone, keszthelyi, Abhijith S, pameeela, claudiu.cristea, alexpott, NickDickinsonWilde: Allow 'Put the exposed form in a block' setting to be used with views block displays

Issue #2511892 by bserem, rachel_norfolk, hussainweb, ravi.shankar, mikeker, catch, vensires, Lendude, alexpott: MissingMandatoryParametersException error on views with menu tab and % in the path

Issue #2716019 by joseph.olstad, rodrigoaguilera, _Archy_, Lendude, mdupont, anmolgoyal74, mpp, Krzysztof Domański, DamienMcKenna, adityasingh, Skymen, benelori, Suresh Prabhu Parkala, rensingh99, alexpott, paulocs, HeyJo, iiRealXz, dawehner, xjm, 5n00py, tstoeckler, Karsa, dbyers55, idebr: View titles in breadcrumb and metatag title don't get properly translated