Issue #356399 by dawehner, beejeebus, catch, sidharrell, klausi, nlisgo, Josh Waihi, Berdir, martin107: Optimize the route rebuilding process to rebuild on write

Issue #2448847 by dawehner, arlinsandbulte: [regression] Themes unable to implement hook_theme_registry_alter()

Issue #2342045 by dawehner, Gábor Hojtsy, larowlan, joshtaylor: Standard views base fields need to use same rendering as Field UI fields, for formatting, access checking, and translation consistency

Revert "Issue #2345779 by subhojit777, idebr, singularo, Yaron Tal, aneek, gngn, m.ioannidis, scor, clemens.tolboom, Sachini, ravi.khetri, SebCorbin, rpayanm: Fix double-escaping due to Twig autoescape in dblog event "operations""

This reverts commit 630edf8c.

Issue #2345779 by subhojit777, idebr, singularo, Yaron Tal, aneek, gngn, m.ioannidis, scor, clemens.tolboom, Sachini, ravi.khetri, SebCorbin, rpayanm: Fix double-escaping due to Twig autoescape in dblog event "operations"

Issue #2447139 by Gábor Hojtsy: Config entities should be created in the negotiated language unless otherwise specified

Issue #2450383 by joshi.rohit100, martin107: Two incorrectly titled Subscriber constructor functions

Issue #2315015 by alexpott, gauravkhambhala, longwave: Remove progress-disabled class and associated CSS

Issue #2367747 by Palashvijay4O, andypost, Alienpruts, Cottser, er.pushpinderrana, gaurav.pahuja, pfrenssen, rpayanm, vadim.hirbu: Remove usage of system_rebuild_theme_data()

Issue #2448077 by a_thakur: Clean views.module with remaining deprecated functions: views_get_disabled_views, views_get_enabled_views and  views_get_views_as_options

Issue #2427095 by likin, idebr, prateekMehta: Formatting guidelines are not shown for textareas without WYSIWYG

Issue #2399939 by DickJohnson, LewisNyman, mherchel, idebr, brahmjeet789: Refactor 'admin-panel' CSS component

Issue #2433595 by chx, Berdir: WebTestBase::refreshVariables only resets cache_tags.invalidator.checksum

Issue #2409417 by cafuego, jibran, larowlan: Disabling feed view display does not remove feed header from display it is attached to

Issue #2384863 by Gábor Hojtsy, vijaycs85, rodrigoaguilera: Translation language base field handler should use views field handler, provide unified options

Issue #2289917 by Wim Leers, mdrummond, lauriii, Manuel Garcia, emma.maria, Scionar, davidhernandez: Convert "messages" page element into blocks

Issue #2428643 by Upchuk: Always display the more link causes exception: cannot create a URL to a display without routes

Issue #2445743 by dawehner, Wim Leers: Allow views base tables and entity types to define additional cache contexts

Revert "Issue #2445743 by dawehner, Wim Leers: Allow views base tables and entity types to define additional cache contexts"

This reverts commit a87aff86.

Issue #2445743 by dawehner, Wim Leers: Allow views base tables and entity types to define additional cache contexts