Issue #3425294 by thhomas, longwave, saurabh rawat, quietone, mstrelan: Remove deprecations for UrlGenerator methods

Issue #3303557 by Binoli Lalani, quietone, catch, Tom Konda, smustgrave: Deprecate and remove the AJAX replace method

Issue #3427177 by longwave, quietone, dineshkumarbollu, samit.310@gmail.com, mondrake, alexpott: Replace calls to ::expectError*() from Drupal\Tests\Core\Render\ElementTest

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

Issue #3352256 by e0ipso, plopesc, bbrala, longwave, dww, catch, larowlan: Move code from the experimental SDC module to core

Issue #3436255 by mondrake, longwave: Fix return typehinting for Compiler and EventSubscriber related classes

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

Issue #3420984 by godotislate, andypost, smustgrave, larowlan, alexpott: Convert Layout DisplayVariant, PageDisplayVariant discovery to attributes

Issue #2663316 by omkar.podey, jofitz, alexpott, shashank5563, samuel.mortenson, Andrej Galuf, djsagar, silverham, juliaschwarz, lauriii, super_romeo, gawaksh, smustgrave, sakthi_dev, Pavan B S, lammensj, Wim Leers, camerongreen, quietone: Broken title in modal dialog when title is a render array

Issue #3083690 by gxleano, mparker17, jungle, joachim, Kris77: '"@key" is an invalid render array key' error in \Drupal\Core\Render\Element is misleading

Issue #3395776 by catch, kristiaanvandeneynde, Wim Leers, Fabianx, larowlan: Make POST requests render cacheable

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

Issue #3422222 by gorkagr, mstrelan, smustgrave: Wrong return type in Renderer::ensureMarkupIsSafe()

Issue #3410210 by quietone, sourabhjain, smustgrave, Spokje, catch: Remove statistics module from comments

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 #3333401 by nicxvan, tsquared212, xjm, larowlan, smustgrave, andrewmacpherson, bnjmnm, lauriii, itmaybejj, xurizaemon: Pager h4 causes accessibility flag on many pages

Issue #3409982 by claudiu.cristea, longwave, alexpott, catch, Ghost of Drupal Past: [D10.2 regression] Theme suggestions cannot alter variables anymore

Issue #3071143 by KarimB, samsylve, smustgrave, quietone: Table Render Array Documention Is incomplete and confusing

Issue #3393955 by quietone, xjm, smustgrave: Correct $suggestions documentation in hook_theme_suggestions_alter()

Issue #3157353 by Utkarsh_33, lauriii, dww, smustgrave, longwave, narendraR, quietone, larowlan, catch, Berdir, omkar.podey: Provide a mechanism to mark entire twig templates as deprecated

Issue #3363420 by kim.pepper, longwave, quietone: Use CallableResolver for \Drupal\Core\Render\Renderer::doCallback()

Revert "Issue #3363420 by kim.pepper: Use CallableResolver for \Drupal\Core\Render\Renderer::doCallback()"

This reverts commit a39939bb.

Issue #2627788 by lauriii, DuaelFr, Pancho, vsujeetkumar, _utsavsharma, KapilV, facine, Danny_Joris, alexpott, juampynr, tim.plunkett: Focus state bug on text field AJAX calls

Issue #3394220 by claudiu.cristea, catch: Dialog options are not honoured when open a dialog using GET

Issue #2820586 by joaopauloc.dev, Gauravvvv, lauriii, ranjith_kumar_k_u, smustgrave, markhalliwell, longwave, dawehner, quietone: #states not applied to link elements

Issue #2441811 by longwave, daffie, andypost, edurenye, lauriii, joseph.olstad, Wim Leers, smustgrave, effulgentsia, alexpott, larowlan, chx, jibran: Upgrade filter system to HTML5

Issue #3375497 by Yujiman85, xjm, joachim: Unclear term 'internal library name' in theme API documentation