Issue #2261465 by rpayanm, neclimdul: Fixed Missing visibility keywords on DrupalKernelTest.
Issue #2276203 by webflo, lauriii, nlisgo, kallehauge, Snipon: Fixed CSS Aggregation breaks URLs with Query String.
Issue #2030645 by lokeoke, Mile23, tim.plunkett, miraj9093, slv_ | plopesc: Fixed Expand Menu with methods.
Issue #2052751 by tim.plunkett, oriol_e9g, yched | alexpott: Fixed WidgetFactory is not used anywhere so it should be removed.
Issue #2302253 by ultimike | Ryan Weal: Fixed User profile "selection" type field type does not migrate from D6 if any of the available options contain a dot.
Issue #2312385 by estoyausente, svendecabooter, ultimike, benjy, Rade, andyceo: Fixed Move schemas for migrate_drupal sources to migrate_drupal module.
Issue #2340123 followup by Mile23: Setting cache tags can be tricky: use strings instead of nested arrays to improve DX.