Issue #2531564 by neclimdul, andypost, chx, cburschka, Spokje, pdenooijer, Charlie ChX Negyesi, znerol, dawehner, longwave, Fabianx, geek-merlin, catch, alexpott: Fix leaky and brittle container serialization solution

Issue #3309247 by pratik_specbee, neclimdul: Unused $theme_engine variable in ThemeInitialization.php

Issue #3269082 by longwave, Spokje, mherchel, andregp, kostyashupenko, bnjmnm, nod_: Remove HTML5 details collapse polyfill

Issue #2953111 by quietone, yogeshmpawar, ravi.shankar, benjifisher, alexpott, mikelutz, catch, andypost, larowlan, danflanagan8: Only migrate role permissions that exist on the destination

Issue #3307736 by catch, alexpott: EmailValidator defaults to 'loose' mode which is deprecated in Symfony 6.2

Issue #3267870 by heddn, larowlan, catch, Fabianx, Alina Basarabeanu, xjm, Graber: Order image mappings by breakpoint ID and numeric multiplier

Issue #3278415 by nod_, lauriii, catch, Wim Leers, longwave, xjm, claudiu.cristea: Remove usages of the JavaScript ES6 build step, the build step itself, and associated dev dependencies

Issue #3307186 by lauriii, xjm, Wim Leers, catch, hooroomoo, yash.rode, Luke.Leber, zrpnr, nod_, Spokje, gabesullice, bnjmnm, anand.toshniwal93, tim.plunkett: Mark CKEditor 5 stable

Issue #3306182 by Spokje, bnjmnm, lauriii: Update to latest minor and patch versions of JavaScript dependencies (except nightwatch and cspell)

Issue #3307454 by Spokje, lauriii: Move classy related tests to the theme directory/namespace or handle them otherwise

Issue #3262135 by kostyashupenko, longwave, Spokje, arunkumark, immaculatexavier: Olivero: Removal of the ie11-autorow CSS class

Issue #2258313 by Wim Leers, nod_, ravi.shankar, lauriii, catch, mfb, longwave, corbacho, alexpott, sun, Owen Barton, tstoeckler: Add license information to aggregated assets

Issue #3306545 by Wim Leers, Spokje, catch, xjm: Replace ckeditor with ckeditor5 in the 9.4.x database dumps in Drupal 10.0.x & 10.1.x

Issue #3231336 by Wim Leers, lauriii: Simplify HtmlRestrictions and FundamentalCompatibilityConstraintValidator now that "forbidden tags" are deprecated

Issue #3306715 by Spokje, Wim Leers: Replace ckeditor with editor_test in editor_private_test.info.yml

Issue #3307230 by bbrala, catch, phenaproxima, Spokje: Backport RDF/views integration changes to 9.5.x

Issue #3306864 by lauriii, mherchel, alexpott: Integrate Twig with Symfony VarDumper for improved debugging experience

Issue #3306946 by xjm, Spokje, andypost, longwave: Update Composer dependencies in 10.0 and 9.5, and increase constraints to require latest minors