Issue #1945026 by Crell: Add 'Routing system' to MAINTAINERS.txt; add Crell and katbailey to base system.
Issue #1947814 by vijaycs85, Gábor Hojtsy, tim.plunkett: Fixed New config entities often save as langcode: und incorrectly.
Issue #1959116 by amateescu: Entity reference autocomplete shouldn't include html in its return value.
Issue #1912594 by krishworks, Berdir: Convert drupal_http_request() usage in system.module to Guzzle.
Issue #1957590 by dawehner, mkadin: Remove remaining procedural ajax command usages.
Issue #1929014 by damiankloip: Fix views rest export plugin render values and add option to output raw values.
Issue #1862524 by Berdir, Sutharsan, rootatwc: Convert drupal_http_request() usage in aggregator.module to Guzzle.
Issue #1798832 by andreiashu, Berdir, heyrocker, aspilicious, johan.gant, typhonius, ACF: Convert https to .
Issue #1799594 by nod_, Wim Leers, jessebeach, jcisio: Update to jQuery 1.9 version.
Issue #1848210 by dysrama, David_Rothstein, kid_icarus, YesCT, Gábor Hojtsy: Fixed [Regression] Submitting a form in Overlay shows content + dsm() for a split second before redirecting to front-end theme.
Issue #1959122 by Crell, tim.plunkett, chx: Fixed Optional params are not possible in routes.
Issue #1964254 by vijaycs85, YesCT | Gábor Hojtsy: Fixed Configuration schemas missing langcode and uuid at places.
Issue #1964224 by Gábor Hojtsy | YesCT: Fixed config during site install in other language is saved as langcode: en.
Issue #1962578 by Berdir, damiankloip, dawehner, xjm: Fixed ViewsDataCache writes multiple times in __destruct().
Issue #1955288 by lilster66 | nod_: JSHint editor.
Issue #1684876 by droplet | nod_: JSHint toolbar.
Issue #1664940 by nod_, jibran, droplet | RobLoach: [Policy, patch] Decide on JSHint configuration.
Issue #1964824 by chrisjlee | alexpott: Fixed spelling of bootstrap in _drupal_log_error().
Issue #1964046 by chx: Fixed Misleading variable name in Combine filter.
Issue #1511862 by mgifford: Fixed Add Fieldsets to Advanced Search Form.