Issue #2398471 by DickJohnson, crazyrohila, rpayanm, lauriii, idebr, LewisNyman, saki007ster, piyuesh23, lanchez, davidhernandez: Clean up the "footer" component in Bartik

Issue #1897058 by disasm, rteijeiro: Replace "boolean" with "bool" when used as param/return/var type

Issue #2398331 by cilefen, davidhernandez, Wim Leers, nod_: Add the ability to attach asset libraries directly from a template file

Issue #2321599 by Temoor, rpayanm, subhojit777, vineeth@nair, LinL, pcambra: Replace all instances of comment_load(), entity_load('comment') and entity_load_multiple('comment') with static method calls

Issue #2454733 followup by amateescu: Add a user-space case-insensitive collation to the SQLite driver

Issue #1559116 by omega8cc, mva.name, droplet, Xano, mgifford: Make core aware of Nginx and PHP-FPM to avoid confusing alerts

Issue #2296261 by GemVinny, lokapujya, lduerig, herom, rteijeiro: Misalligned Type field in Drupal 8.x views

Issue #2460027 by epari.siva, vijaycs85: Update the documentation of  Drupal\language\LanguageServiceProvider::getDefaultLanguageValues()

Issue #2392221 by er.pushpinderrana, ClientGuy, zealfire: install_run_task() and install_tasks() don't document the task structure

Issue #2453761 by Gábor Hojtsy: Views numeric formatter's plural formatting setting incompatible with many languages

Issue #2460259 by sasanikolic, ameenkhan07: Multiple calls to LocaleConfigManager::getStringTranslation can return multiple new translation objects for the same source

Issue #2458349 by Wim Leers: Route's access result's cacheability not applied to the response's cacheability

Issue #2346373 by fago, sidharrell, rteijeiro, arlinsandbulte: Data reference validation constraints are applied wrong

Revert "Issue #2457345 by vijaycs85: Remove unnecessary format lookup in \Drupal\Core\Datetime\DateFormatter::dateFormat for 'custom' format"

This reverts commit 744514b9.

This reverts commit 3ae1b68c.

Issue #2459971 by Gábor Hojtsy: The langcode key on configuration files is not explicit in configuration schema

Issue #2461063 by Wim Leers, effulgentsia: AJAX forms using #ajax broken when page caching is enabled

+ ‘SparkleShare.txt’

Issue #2457345 by vijaycs85: Remove unnecessary format lookup in \Drupal\Core\Datetime\DateFormatter::dateFormat for 'custom' format

Issue #2459407 by jhodgdon, jhedstrom: SQL syntax error when using the search_keywords filter or argument

Issue #2453059 by Wim Leers: Set default render cache contexts: 'theme' + 'languages:' . LanguageInterface::TYPE_INTERFACE