Issue #2031641 by aburrows, lauriii, nlisgo, Pol, redsquid, tuutti, LewisNyman, akalata, agviu, kallehauge, _nolocation, rpayanm, saki007ster, mdrummond, RavindraSingh, brahmjeet789: Change active class to is-active

Issue #2468151 by lhangea, rpayanm, Palashvijay4O: Rename the CacheContexts service to CacheContextsManager

Issue #2456599 by k4v, dawehner, larowlan, rteijeiro, cutesquirrel, yched, jhodgdon: Field node_field_revision.title needs to use an entity-aware formatter in Views

Issue #2471743 by pwolanin: Create a more generic superclass of  \Drupal\Core\Render\BubbleableMetadata

Issue #2447555 by Cinnead: Unnecessary index on langcode and deleted column in dedicated field tables

Issue #2470980 by PieterJanPut: Use $this->redirect() instead of ResponseRedirect in LocaleController::checkTranslation

Revert "Issue #2459753 follow-up by tim.plunkett, alexpott: EntityForm::validate() should be able to modify the form structure"

This reverts commit fb5ea78b.

Issue #2459753 follow-up by tim.plunkett, alexpott: EntityForm::validate() should be able to modify the form structure

Revert "Issue #2459753 by tim.plunkett: EntityForm::validate() should be able to modify the form structure"

This reverts commit d4d83576.

Issue #2464045 by fgm: Move twig_render_var/twig_drupal_escape_filter to TwigExtension, inject the renderer in Twig extension and inline render() / show() function instead of calling it

Issue #2470960 by Igor Kandyba, Reno Greenleaf, ifrik, jhodgdon: Update hook_help text for Link module

Issue #2471216 by joshi.rohit100, PieterJanPut, Wim Leers: render() should call the renderer service directly

Issue #2467887 by joshi.rohit100: Rename drupalGetAJAX to drupalGetAjax for parity with drupalPostAjaxForm

Issue #2467041 by mr.baileys, jan.stoeckler: max-age on HTML responses wrongly set to `max-age=0, private` instead of `max-age=N, public` (breaks reverse proxies and client-side caching)

Issue #2417549 by alexpott, znerol, benjy, Berdir: Drupal\migrate_drupal\Tests\d6\MigrateFileTest fail in MigrateTestBase

Issue #2105841 by mr.baileys, Wim Leers, cs_shadow, sanduhrs, chx, webflo: Xss::filter() ignores malicious content in data-attributes and mangles image captions