Issue #3261264 by andypost: Remove deprecated code from \Drupal\Core\Cache\DatabaseCacheTagsChecksum

Issue #3249592 by hooroomoo, vlyalko, Wim Leers, lauriii: [drupalImage] <img width> upcast assumes HTML5: px unit, but HTML4 allowed % unit

Issue #3258435 by ravi.shankar, alexpott, longwave: Remove deprecated feed.reader.* and feed.writer.* services from the container

Issue #3261743 by Spokje: Remove @composer require phpspec/prophecy-phpunit:^2 from "drupal-phpunit-upgrade"

Issue #3261712 by Wim Leers, bnjmnm: Expand SmartDefaultSettingsTest to also test a format + editor with media embedding

Issue #3232550 by Wim Leers, hooroomoo, xjm, ravi.shankar: Improve messaging about Internet Explorer 11

Issue #3258276 by Spokje: Remove deprecated flag --no-suggest from drupal-phpunit-upgrade composer script

Issue #3254347 by murilohp, joachim, danflanagan8, quietone: Add the process plugin ID to migration exception message

Issue #3115054 by chr.fritsch, vsujeetkumar, Vidushi Mehta, sergiuteaca, janmejaig, ranjith_kumar_k_u, phenaproxima: Media library widget forgets ordering when adding or removing items

Issue #3256433 by andregp, Abhijith S, awangsetyawan, DuneBL, mherchel: wide-image class should not be added for user pictures

Issue #3174402 by beatrizrodrigues, shetpooja04, ravi.shankar, ayushmishra206, longwave, catch: Fix unused variable $unpublished in TrackerTest.php

Issue #3258642 by ilgnerfagundes, asishsajeev, Chi: Fix documentation for _toolbar_get_subtrees_hash()

Issue #3258969 by heddn: Wrong argument for @Message in ModuleInstaller::install call to watchdog_exception

Revert "Issue #3172166 by Pooja Ganjage, ekes, Megha_kundar, tstoeckler, mbovan, Spokje, alexpott: Element::properties() produces notices if given an array with integer keys"

This reverts commit 60a42060.

Issue #3259674 by longwave, andypost: [Symfony 6] Drupal\Core\Routing\Router::matchCollection(): Return value must be of type array, null returned

Issue #3259380 by lauriii, Wim Leers, DamienMcKenna, hooroomoo, bnjmnm: CKEditor 5's toolbar occludes Drupal's toolbar if and only if CKEditor 5 has focus

Issue #3239123 by hooroomoo, bnjmnm, nod_: Refactor (if feasible) uses of the jQuery text function to use vanillaJS