Issue #1998056 by Sutharsan, clemens.tolboom, penyaskito: Automatically update interface translations using cron.

Issue #1861934 by Kristen Pol, pixelite, YesCT, Sutharsan, Outi: Rework help text for UI translations and importing po files.

Issue #1898428 by joelpittet, shanethehat, Floydm, gillbates, steinmb, artis, Cottser, gnuget: locale.module - Convert theme_ functions to Twig.

Issue #1813762 by ParisLiakos, Jose Reyero, YesCT, japicoder, attiks: Introduce unified interfaces, use dependency injection for interface translation.

Issue #1620010 by dawehner, ParisLiakos, plach, jibran: Move LANGUAGE constants to the Language class.

Issue #1898432 by WebDevDude, steveoliver, vlad.dancer, jenlampton, pixelmord, Fabianx, iztok, EVIIILJ, jwilson3, c4rl, Cottser: Convert node module to Twig.

Issue #1905152 by Gábor Hojtsy, Jose Reyero, vijaycs85, YesCT, penyaskito: Integrate config schema with locale, so shipped configuration is translated.

Issue #1864066 by sun, andypost, tim.plunkett: Simplify hook_menu_local_tasks() and MENU_DEFAULT_LOCAL_TASK usage.

Issue #1751348 by heyrocker, vijaycs85, julien, Gábor Hojtsy: Convert locale settings to configuration system.

Issue #1496480 by mrf, disasm, kbasarab, pfrenssen, cam8001, typhonius, Letharion, ACF, vijaycs85, heyrocker, Berdir, alexpott: Convert file system settings to the new configuration system.

Issue #1899994 by katbailey, plach, YesCT: Disentangle language initialization from path resolution.

Issue #1884182 by Gábor Hojtsy, Sutharsan: Fixed Import of large number of translations fails on SQLite.

Issue #1804702 by Sutharsan, balintk, YesCT, Jose Reyero, Gábor Hojtsy: Display interface translation status.

Issue #1864472 by Sutharsan: Warning when tries to delete English after non-English install, locale_translation_status_delete_languages().

Issue #1804688 by Sutharsan, YesCT, clemens.tolboom, Gábor Hojtsy, webflo, Jose Reyero: Download and import interface translations.

Issue #1571632 by cosmicdreams, marcingy, justafish, chx, KarenS, aspilicious, disasm, swentel, dawehner, rvilar: Convert regional settings to configuration system.

Issue #1810710 by Berdir, Fabianx: Remove copying of node properties wholesale into theme variables.

Issue #1742894 by Sutharsan, webflo, attiks, Gábor Hojtsy: Added Get status of local and remote translation files.

Issue #1785086 by Jose Reyero, Gábor Hojtsy, catch, loganfsmyth, nedjo, stella: Added Introduce a generic API for interface translation strings.

Issue #1326618 by Albert Volkman, ykhadilkar, oriol_e9g, daniel_j, xenophyle: API docs cleanup for locale module

Issue #1215104 by sun, lucascaro, effulgentsia: Use the non-interactive installer in WebTestBase::setUp().

Issue #1658842 by penyaskito, attiks, webflo: Added Introduce a translations:// stream wrapper to access the .po file directory.

Issue #1757078 by julien, Gábor Hojtsy, LoMo, beejeebus: Fixed When installing Drupal in a non-English language, we do not see the 'congratulations' page.

Issue #1737148 by nod_, SebCorbin, larowlan, tim.plunkett, Albert Volkman, nick_schuch, sun: Explicitly declare all JS dependencies, don't use drupal_add_js().

Issue #1646580 by chx, Jose Reyero, beejeebus: Implement Config Events and Listeners, and storage realms for localized configuration.

Issue #1637348 by vasi1186, attiks, clemens.tolboom, penyaskito: Import Gettext .po files in progressive batches to avoid time limits.

Using the language_manager wrapper function to return a language whether or not we're in the requet scope

- Patch #1290694 by hefox, tlattimore, c4rl, chx, tim.plunkett, tstoeckler, msonnabaum: provide consistency for attributes and classes arrays provided by template_preprocess().