Issue #2247991 by xjm, typhonius, donquixote: [May 27] Move all module code to PSR-4.
Issue #2233623 by Berdir, slashrsm, xjm: Fixed Merge AliasManagerCacheDecorator into AliasManager.
Issue #788900 by ParisLiakos, dawehner, effulgentsia, xjm, et al: Deprecate and remove usages of arg().
Issue #2214209 by dawehner, ParisLiakos, xjm: Move _menu_site_is_offine() into the Maintainance subscriber.
Issue #2261131 by Jose Reyero, Gábor Hojtsy | alexpott: Fixed Overrides will bleed in config export.
Issue #2226301 by alexpott: Run-test.sh --repeat should work nicely with --concurrency.
Issue #2253109 by alexpott, ParisLiakos: Followup: Bring .htaccess and web.config up to date.
Issue #1989470 by LewisNyman, aboros, philipz, mgifford, rteijeiro, dimaro, Bès, klonos, emma.maria: Dropbutton style update for Seven.
Issue #2267911 by tstoeckler: Remove pointless condition in ModuleHandler::install().
Issue #2254785 by LewisNyman, Dragan Eror: Fixed Progress bar 0% or over 100% visual BUG.
Issue #2253987 by Mixologic: ShortcutAccessController.php should typehint ShortcutSetStorageInterface.
Issue #2091353 by batigolix, mrjmd, babruix: Update hook_help for Path module.
Issue #2228625 by Sam152, Risse: Fixed Ensure toolbar items do not flow on to two lines in the Manage tray .
Issue #2233623 by Berdir: Follow-up to fix Merge AliasManagerCacheDecorator into AliasManager.
Issue #2209293 by sun, xjm: Remove core compatibility check in ExtensionDiscovery; obsolete with Migrate in core.
Issue #1959660 by larowlan, pfrenssen, xjm, clemens.tolboom, dawehner, RobLoach: Replace xpath() with WebTestBase::cssSelect() by leveraging Symfony CssSelector.
Issue #2236781 by damiankloip, alexpott, xjm: Fixed ViewsData only writes one per-table cache entry per request.
Issue #2267411 by David_Rothstein | klausi: Document that field_access() does no entity access checks.
Issue #2276183 by alexpott: Fixed Date intl support is broken, remove it.
Issue #2253735 by larowlan, olli, xjm: Fixed WSOD on custom block creation / listing if config translation enabled.