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

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

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 #2815829 by godotislate, tim.plunkett, smustgrave, alexpott, xjm, bircher, paulocs: Adding or editing a block through the UI saves the entity twice

Issue #3331059 by quietone, Wongjn, ameymudras, smustgrave, xjm, alexpott, larowlan: Properly check for block content type in BlockPluginId process plugin

Issue #2858897 by ericgsmith, smustgrave, schlaukopf, fabiansierra5191, tobiasb, ben.kyriakou, RoSk0, rpayanm, _utsavsharma, Dakwamine, xjm, larowlan, Aki Tendo, tim.plunkett, longwave, mxh, alexpott: Block name collision on theme creation

Issue #3386937 by Spokje, smustgrave: Remove error suppressions and workarounds for https://bugs.php.net/bug.php?id=50688

Issue #3209249 by quietone, smustgrave, bharath-kondeti, ankithashetty, KapilV, longwave, Spokje: Fix spelling for 29 migrate translation related words

Issue #2245767 by John Pitcairn, andrewmacpherson, danflanagan8, leymannx, tim.plunkett, mpolishchuck, tobiasb, olli, dawehner, Anas_maw, SpadXIII, _utsavsharma, benjifisher, ankithashetty, jidrone, SimeonKesmev, Daniel Korte, ameymudras, jyotimishra-developer, alexpott, smustgrave, geek-merlin, catch, DuaelFr, Gábor Hojtsy, lauriii, ckrina, quietone: Allow blocks to be configured to show/hide on 200/403/404 response pages

Revert "Issue #2245767 by John Pitcairn, andrewmacpherson, danflanagan8, leymannx, tim.plunkett, mpolishchuck, tobiasb, olli, dawehner, Anas_maw, SpadXIII, _utsavsharma, ankithashetty, jidrone, ameymudras, Daniel Korte, SimeonKesmev, Qusai Taha, jyotimishra-developer, alexpott, geek-merlin, smustgrave, DuaelFr, catch, Gábor Hojtsy, quietone, lauriii, ckrina: Allow blocks to be configured to show/hide on 200/403/404 response pages"

This reverts commit ad4db277.

Issue #2245767 by John Pitcairn, andrewmacpherson, danflanagan8, leymannx, tim.plunkett, mpolishchuck, tobiasb, olli, dawehner, Anas_maw, SpadXIII, _utsavsharma, ankithashetty, jidrone, ameymudras, Daniel Korte, SimeonKesmev, Qusai Taha, jyotimishra-developer, alexpott, geek-merlin, smustgrave, DuaelFr, catch, Gábor Hojtsy, quietone, lauriii, ckrina: Allow blocks to be configured to show/hide on 200/403/404 response pages

Issue #3330981 by Spokje, smustgrave, mallezie, catch, xjm: Fix PHPStan L1 error "Relying on entity queries to check access by default is deprecated..."

Issue #3318549 by smustgrave, mstrelan, larowlan, rkoller, AaronMcHale, acbramley: Rename Custom Block terminology in the admin UI

Issue #3061266 by smustgrave, Grimreaper, ridhimaabrol24, nod_, pavnish, ithom, Hardik_Patel_12, Webbeh, alexpott: Prefix block machine name suggestions with the theme machine name

Issue #3323209 by Spokje, mondrake, smustgrave, alexpott, xjm: Deprecate calling Drupal\block\Plugin\migrate\process\BlockTheme::_construct() with the $migration argument

Issue #2779321 by nedjo, Akram Khan, smustgrave, catch, Meenakshi_j, pooja saraah, Berdir, alexpott: Submitting empty block layout form results in breakage for all block entities

Issue #2779321 by nedjo, Akram Khan, smustgrave, Meenakshi_j, pooja saraah, alexpott: Submitting empty block layout form results in breakage for all block entities

Issue #3268829 by quietone, bbrala: Fix class property comments for Drupal.Commenting.DocComment.ShortSingleLine

Issue #3274474 by mondrake, longwave, andypost, Spokje, catch, alexpott: Fix 'Access to an undefined property' PHPStan L0 errors

Issue #3301663 by catch, Berdir, lucassc: Remove handling of node_type condition plugin in BlockForm::\Drupal\block\BlockForm::buildVisibilityInterface()

Issue #3061148 by vsujeetkumar, Ramya Balasubramanian, raman.b, ankithashetty, pmagunia, lauriii, karishmaamin, priyanka.sahni, quietone, Anishnirmal, Akhildev.cs, mitthukumawat, joachim, xjm: a disabled block's admin title gets double-escaped

Issue #3265483 by quietone, danflanagan8, daffie: Handle block migration for modules moved to contrib

Issue #3106216 by Spokje, longwave, alexpott, apaderno, Hardik_Patel_12, daffie: Remove unused variables from core

Issue #3232097 by daffie, longwave: [Symfony 6] Add "array" type hint to methods overriding Symfony\Component\EventDispatcher\EventSubscriberInterface::getSubscribedEvents()

Issue #3056409 by rkostov, larowlan, maximpodorov: BlockRepository::contextHandler is created dynamically

Issue #3222769 by bbrala, alexpott, longwave, Matroskeen: [November 8, 2021] Replace all list (array destructuring) assignment to the array syntax

Issue #3222251 by bbrala, longwave: [November 8, 2021] Replace all isset constructs with the null coalescing operator

Issue #3240165 by alexpott: \Drupal\block\Plugin\migrate\process\BlockTheme causes deprecations on PHP 8.1

Issue #1932810 by Berdir, jibran, joegraduate, joelpittet, JeroenT, RenatoG, tim.plunkett, tedbow, andypost, paulocs, hugronaphor, ankithashetty, Meenakshi_j, chr.fritsch, Beanjammin, nikitagupta, EclipseGc, dawehner, xjm, alexpott, fago, tstoeckler, catch, seanB, larowlan: Add entity bundles condition plugin for entities with bundles

Issue #2839558 by tim.plunkett, mohit_aghera, tkoleary, webchick, guilhermevp: Blocks do not have a "remove" contextual link

Issue #2268787 by tim.plunkett: Block plugin forms should not rely on being called from \Drupal\block\BlockForm