Issue #3442976 by smustgrave, andypost: Remove deprecations from ckeditor5, editor, and filter modules

Issue #3441718 by mondrake: Fix string array keys in data sets returned by data provider methods that do not match the parameter names in Unit tests

This reverts commit 5a9ce8cf.

Issue #3402713 by mstrelan, smustgrave, dww: Fix strict type errors: miscellaneous fixes in core Kernel tests

Issue #3402294 by mstrelan, quietone, dww, smustgrave: Fix strict type errors: Convert FormattableMarkup to strings (complex replacement) in core Kernel tests

Issue #3421843 by scott_euser, smustgrave, Wim Leers, catch: filter_autop should ignore twig.config debug html comments

Issue #3421016 by quietone, godotislate: Convert MigrateProcessPlugin plugin discovery to attributes

Issue #3431452 by godotislate, smustgrave, alexpott: Rename RenderElement and FormElement plugin abstract classes to RenderElementBase and FormElementBase

Issue #3421439 by godotislate, sorlov, quietone, smustgrave, alexpott, larowlan, longwave, andypost: Convert form and render element plugin discovery to attributes

Issue #2567801 by Wim Leers, lauriii: Deprecate core/modules/editor/js/editor.admin.js JS APIs in Drupal 10, for removal in Drupal 11

Issue #3420742 by quietone, sakthi_dev, BramDriesen: Fix words in test string by changing the string

Issue #3421012 by sorlov, quietone, sakthi_dev, mstrelan, Wim Leers: Convert Filter plugin discovery to attributes

Issue #3426309 by Wim Leers, smustgrave: Add config validation for weights (blocks, filters, etc. all use weights)

Issue #2511308 by dimitriskr, ankithashetty, smustgrave, quietone, Wim Leers: Rename RendererInterface::renderPlain() to ::renderInIsolation()

Issue #3091841 by quietone, Grevil, Anybody, mikelutz, smustgrave, danflanagan8, jklmnop, ShaunDychko, fengtan, MariaIoann, ranjith_kumar_k_u: Remove hardcoded plugin IDs from migration process plugins

Issue #3395562 by Wim Leers, Eli-T, borisson_, nireneko, claudiu.cristea, marvil07, smustgrave: Add validation constraints to filter.settings

Issue #3353210 by mondrake, PrabuEla, Spokje: [PHPUnit 10] @dataProvider methods must be declared static and public

Issue #3404431 by claudiu.cristea, Wim Leers, borisson_, quietone: Filter settings schema types are incorrect

Issue #3328457 by xjm, dimitriskr: Replace most substr($a, $i) where $i is negative with str_ends_with()

Issue #3328456 by xjm, dimitriskr, murilohp, smustgrave: Replace substr($a, 0, $i) with str_starts_with()

Issue #3404273 by mstrelan, smustgrave: Fix strict type errors: Convert FormattableMarkup to strings (simple replacement) in core Functional tests

Issue #3410303 by longwave, Luke.Leber, Wim Leers, quietone, dslatkin: FilterHtml data loss when iframe and/or textarea is allowed

Issue #3402293 by dww, mstrelan, smustgrave: Fix strict type errors: Convert FormattableMarkup to strings (simple replacement) in core/modules/*/tests/src/Kernel/*

Issue #3391786 by quietone, xjm, smustgrave: Fix spelling of words only misspelled in tests, variable names, part 5