Issue #2659940 by almaudoh, alexpott, phenaproxima, Jo Fitzgerald, markcarver, oriol_e9g, dawehner, dsnopek, jibran, larowlan: Extension System, Part III: ThemeExtensionList and ThemeEngineExtensionList

Issue #3014949 by tim.plunkett: Deprecate 'context' on Block and Condition plugin annotations in favor of 'context_definitions'

Issue #2370115 by Upchuk, nafsinvk, jibran: Clicking 'Add to shortcuts' adds shortcut multiple times

Issue #2431085 by xjm, pjbaert, Jo Fitzgerald: Validation error for manually entered paths in the link widget is a little confusing

Issue #2968139 by tim.plunkett, tedbow: Layout Builder field blocks show up on Block UI when they shouldn't

This reverts commit 77accaed.

Issue #2830239 by cebasqueira, imalabya, spitzialist, th_tushar, monta, benjifisher, faline, alexpott: Several URLs point to  Drupal 7 documentation pages instead of Drupal 8

Issue #2809501 by Lendude, michielnugter, MerryHamster, Manuel Garcia, jibran: Convert AJAX part of \Drupal\field_ui\Tests\ManageDisplayTest to JavascriptTestBase

Issue #2885809 by amateescu, Wim Leers, dawehner, Berdir, andypost: The 'entity_type' and 'field_name' base fields on Comment are required

Issue #2654962 by Manuel Garcia, Lendude, wturrell, nlisgo, NickWilde, serg2, xjm, StuartJNCC, alexpott, cilefen: Views content rewrite text says "You may include HTML" but actually allows only a subset

Revert "Issue #3000630 by scott_euser, Krzysztof Domański, APolitsin, vijaycs85, longwave: Transliteration causes 2 capital letters at the beginning of a word"

This reverts commit bb7fb6a3.

Issue #3014950 by goodboy, mondrake, alexpott: Replace all db calls to file_managed table with Entity APIs

Issue #2983665 by cferthorney, zuhair_ak, Saviktor, John Cook, Eli-T, longwave, alexpott: Inconsistent ordering of views of content in Umami

Issue #2911149 by quietone, Jo Fitzgerald, heddn, cogent, mikelutz: FormatDate process plugin doesn't handle zero values

Issue #3015110 by pwolanin, mikelutz, YesCT, quietone: migrate source plugin SqlBase::initializeIterator fails to update rows when high water reset to NULL or 0 and mapJoinable() = TRUE

Issue #3015004 by tedbow, andrewmacpherson, tim.plunkett: Distinguish between the repeated text of remove-section buttons in Layout Builder UI

Issue #2936360 by tim.plunkett, samuel.mortenson: Remove duplicate references to the "layout_builder__layout" field from Layout Builder

Issue #2924218 by amateescu, Fabianx: Clearing the persistent entity cache every time we switch between workspaces is super wasteful

Issue #2997194 by ndf, L-four, drpal: tableheader.js throws error when running Drupal inside an iframe

Issue #2967567 by WalkingDexter, borisson_, catch, dawehner, Lendude: Views display extenders validation

Issue #2948068 by drpal, dawehner, borisson_, ethomas08, lauriii, yoroy, tedbow: Placing and then removing a block appends incorrect query string destination parameter

Issue #2936032 by gambry, nlisgo, alexpott, cwells, cilefen, Darvanen, DamienGR: Sites named with special characters cannot send mail

Issue #2799987 by jonathanshaw, oriol_e9g, Jo Fitzgerald, mpdonadio, GoZ, Mixologic, harsha012, jhedstrom: Datetime and Datelist element's timezone handling is fragile, buggy and wrongly documented

Issue #3014851 by tim.plunkett: ContextAwarePluginBase::setContextValue() should delegate to ::setContext()

Issue #2928888 by amateescu, hchonov, timmillwood, Berdir, larowlan: Add a hook_entity_preload() for modules that need to load a different revision than the default one

Issue #2578251 by marthinal, eporama, John Cook, Adita, joe_carvajal, luismagr, Shreya Shetty, Dinesh18, alexpott, Cottser: No results text appears twice

Issue #2894193 by alexpott, jlscott, kkonuhov, mallezie, larowlan: Multiple file upload does not validate extensions correctly

Issue #3004456 by mikelutz, phenaproxima, alexpott, heddn, maxocub, quietone: Add a weighting option to MigrateField plugin's definition and lower weight of deprecated 'date' plugin so it isn't used

Issue #2684689 by jgrunert, Jo Fitzgerald, heddn, phenaproxima, chx, nevergone, bendeguz.csirmaz, Dylan Donkersgoed, iMiksu, maxocub, Gábor Hojtsy: SubProcess process plugin doesn't support passing context values from source plugin

Issue #2895315 by nielsstampe, Krzysztof Domański: Danish characters are not translated correctly with transliteration

Issue #3000630 by scott_euser, Krzysztof Domański, APolitsin, vijaycs85, longwave: Transliteration causes 2 capital letters at the beginning of a word