Issue #2317913 by jhedstrom: Early error handling can result in fatal error (Call to a member function get() on a non-object)
Issue #2350327 by PieterDC, Dave Reid: editor.module should use the same data- attributes as entity_embed.module uses
Issue #2348925 by alexpott, cilefen, Wim Leers: Uninstalling a filter plugin removes text formats
Issue #2379683 by Gábor Hojtsy: Fix configuration schema issues in contact (indirectly user and system) modules
Issue #2380573 by tibbsa: Add @return $this to ConfigInstallerInterface::setSynching
Issue #2030661 by lokeoke, lokapujya, larowlan, dinarcon, daffie, izus, Ivan Zugec: Expand Tour with methods
Issue #1224892 by iaine, lapistano, LinL, jonvk: Duplicate code in mysql/schema.inc (createKeySql = createKeysSqlHelper)
Issue #2350723 by rjacobs: State toggles for Enable alt/title and Require alt/title not functioning
Issue #2358529 by Tom Verhaeghe, Wim Leers, brylie, brahmjeet789, effulgentsia: Right-aligned images in CKEditor appear to the right of other fields
Issue #2349801 by BillyClackers: The local tab 'Blocks' should be first on the Custom block library
Issue #1002164 by alexpott, Carsten Müller, Devin Carlson, linclark, naxoc, vijaycs85: The Book module can be uninstalled with nodes with a book node type still existing
Issue #2381509 by er.pushpinderrana, dawehner: Fix docs for _content being _controller in routing.yml files
Issue #2352207 by martin107, Berdir: Database cache backend does not treat cid as case sensitive
Issue #2157541 by dawehner, penyaskito, tim.plunkett, Désiré: Views sets access to ANY on routes - could result in information disclosure
Issue #1833932 by lauriii, lokapujya, cilefen, Cottser, joelpittet, jenlampton, iMiksu, lanchez, ericrdb, mikispeed, Eric_A, mikemiles86: Convert theme_system_compact_link() into a #type link
Issue #2359453 by JeroenT: Remove drupal_mail_system()
git commit -m 'Issue #2377397 by Wim Leers, alexpott: Themes should use libraries, not individual stylesheets'
Issue #2358603 by Berdir: ViewsAjaxController results in fatal error for empty optional arguments
Issue #2212335 by jhodgdon: Separate out NodeSearch::execute() into finding vs. processing results
Issue #2235901 by alexpott, mdrummond, iMiksu, sun, Wim Leers: Remove custom theme settings from *.info.yml