Issue #3177545 by alexpott, andypost: \Drupal\field\Entity\FieldStorageConfig::getCardinality() needs to be more type safe

Issue #3173905 by nod_, ravi.shankar, kostyashupenko, mherchel: Olivero: node.classList.remove() only supports one argument

Issue #3177590 by alexpott, longwave, hussainweb: ViewsFormBase::getForm() re-uses $key and relies on odd PHP 7 behaviour

Issue #3177546 by alexpott: \Drupal\views\Plugin\views\PluginBase::listLanguages() incorrectly uses in_array() resulting in listing additional languages

Issue #3173595 by shetpooja04, meena.bisht, Pooja Ganjage, quietone, longwave: Remove only Unused variable $email in SearchBlockTest.php, search module

Issue #3156542 by alexpott, voleger, andypost, Charlie ChX Negyesi, Gábor Hojtsy, longwave: \ReflectionParameter::getClass() is deprecated in PHP 8.0

Issue #3178039 by anmolgoyal74, Matroskeen, xjm, Kristen Pol, alvar0hurtad0: Correct typo "is has" in a few code comments and tests in core

Issue #3095113 by gapple, longwave, ravi.shankar, Deepak Goyal, anmolgoyal74, Sahana _N, geek-merlin, catch, lauriii, Meenakshi.g: Deprecate IE conditional comments support

Issue #3037436 by alexpott, jonathan1055, Wim Leers, catch, tedbow, longwave: [random test failure] Make QuickEditIntegrationTest more robust and fail proof

Issue #2918149 by harpreet16, tim.plunkett, raman.b, anil.gangwal, dalin, grndlvl, nikunjkotecha, kalyansamanta, paulocs, ranjith_kumar_k_u, froboy: "This block is broken or missing..." should only be shown to users that have access to do something about it

Issue #2607116 by rajeshwari10, rakesh.gectcr, andypost, mayurjadhav, ZeiP, alexpott, xjm: Unused variable in token.api.php

Issue #3069026 by anmolgoyal74, Pooja Ganjage, mikelutz, longwave, alexpott, xjm: Fix Call to deprecated method addAutowiringType() of class Symfony\Component\DependencyInjection\Definition in YamlFileLoader

Issue #3174884 by raman.b, alexpott, lauriii, zrpnr, nod_: Update yarn dependencies for Drupal 9.1.0

Issue #3157963 by shailja179, ravi.shankar, kiamlaluno, davidhernandez, joachim: The link given in FormState::setRedirect() for the page explaining what values are available for $options param takes to a class documentation page

Issue #3176652 by Erik Frèrejean: Inline documentation references removed function `drupal_installation_attempted`

Issue #3161010 by steinmb, ravi.shankar, kiran.kadam911, mherchel: Olivero: Syntax error in layout-builder-twocol-section.css

Issue #3070493 by bnjmnm, lauriii: Introduce a mechanism to provide an alternate Claro design for the toolbar in the future

Issue #3177477 by Gábor Hojtsy, pameeela, Dries: Promote pameeela to non-provisional committer facilitator

Issue #3174662 by mondrake, andypost, alexpott, hussainweb, anmolgoyal74: Encapsulate \PDOStatement instead of extending from it

(cherry picked from commit f67095e4)

Issue #3158854 by bnjmnm, lauriii, Gábor Hojtsy, KondratievaS, DyanneNova, anu.a_95, saschaeggi, katherined, ckrina, shaal, nod_, yoroy: Node form: address chasm between main form and meta

Issue #3176036 by paulocs, raman.b, longwave: Replace "does" to "do" in ProfileFieldCheckRequirementsTest.php

Issue #3171267 by lauriii, Pooja Ganjage, bnjmnm, andrewmacpherson: Add bnjmnm as a provisional accessibility topic maintainer

Issue #2273381 by clayfreeman, tim.plunkett, andypost, dawehner, EclipseGc, jungle, xjm, alexpott, Berdir: Convert ContextAwarePluginBase to traits

Issue #3135247 by greg.1.anderson, alexpott, ridhimaabrol24, Mixologic, tedbow, xjm, catch, jwilson3, longwave: Composer's "prefer-stable" setting cannot be relied on to produce a stable release

Issue #3111409 by mherchel, proeung, larowlan, alexpott, lauriii, Gábor Hojtsy, andrewmacpherson, catch, xjm, andypost, rahulrasgon, rabbitlair, mrconnerton, poojakural, boulaffasae, jerseycheese, shimpy, Indrajith KB, DuneBL, kiran.kadam911, komalkolekar, keboca, hawkeye.twolf, andrewozone, Maithri Shetty, alexdmccabe, sd9121, Sreenivas Bttv, katannshaw, mgifford, nod_, webchick, mtift, rainbreaw, Berdir, brianperry, thejimbirch, Dom., q0rban, nitesh624, hansa11, himanshu_sindhwani, kostyashupenko, shaktik, bnjmnm, sharma.amitt16, sonam.chaturvedi, steinmb, shaal, ressa, Ramya Balasubramanian, Sebacic, pradeepjha, tanmaykadam, thedrupalkid, vinitk, volkswagenchick, viappidu, vebrovski, Ujval Shah, Webbeh, Yuri, trebormc, msuthars, mrinalini9, bash247, chetanbharambe, ellenoise, anevins, andriyun, CocoM, JayKandari, ambuj_gupta, hussainweb, jhodgdon, Pooja Ganjage, ju.vanderw, jwitkowski79, MaxPah, Lokender Singh2, jponch, KarenS, KarinG, Lal_: Add new Olivero frontend theme to Drupal 9.1 core as beta; later make it stable and the default

Issue #3166068 by lauriii, Vidushi Mehta, sd9121, anu.a_95, tanubansal, bnjmnm, Lendude, katherined: Autocomplete "loading" message not properly hidden in inline forms

Issue #3172582 by pameeela, g-brodiei, sarvjeetsingh, mstrelan, quietone, alexpott, larowlan, MrPaulDriver: Update PHP manual link for date/time formatting help

Issue #3040181 by paulocs, quietone, snehalgaikwad, ravi.shankar, mindbet, alexpott, ultrabob, bthompson1, Lendude, lapaev, pameeela: Unpublished books appear in the list of books at /book

Issue #3143465 by Mark Shi, if-jds, nod_, bnjmnm, paulabg: Add NodeList.forEach polyfill to support IE11

Issue #3175665 by shetpooja04, jijojoseph_zyxware: Remove unused $view variable in FilterTest.php, views module

Issue #3174418 by paulocs, adhershmnair: Remove unused variable $revision_metadata_keys and $active_workspace_id

Issue #3175571 by shetpooja04, quietone: Remove unused $nodes variable SortTranslationTest.php in views.php, system module