Issue #1351352 by sun, lucascaro, Gábor Hojtsy, rupertj: Distribution installation profiles are no longer able to override the early installer screens.
Issue #2188565 by Wim Leers, Berdir: Test coverage for Comment, Custom Block, Node, Taxonomy Term and User entity cache tags.
Issue #2216961 by Gábor Hojtsy, xjm | alexpott: Document Config, ConfigBase, and StorableConfigBase.
Issue #2215503 by Gábor Hojtsy, Wim Leers: Use services instead of event subscribers for config module overrides.
Issue #1986090 by markpavlitski, jessebeach: Profile config does not overwrite module default config on install (system.cron.yml).
Issue #2217781 by alexpott: Can only run tests from the installed profile.
Issue #2217643 by chx, tim.plunkett: Add docs to setFormClass method
Issue #2216945 by asrob: Remove duplicate ingroup on filter_xss
Issue #2189497 by paulh: Add docs to EntityType annotation class to tell where to actually find the relevant docs
Issue #2145103 by Berdir, das-peter, fago, amateescu: Provide non-configurable field types for entity created, changed and timestamp fields.
Issue #2124377 by ellishettinga, Jelle_S, attiks, mdrummond, Schnitzel, InternetDevels: Rename "Picture" module to "Responsive Image" module.
Issue #2217669 by tim.plunkett: [REGRESSION] Views UI broken.
Issue #2209461 by sun: Settings from test runner leak into all tests.
Issue #1808220 by sun: Remove run-tests.sh dependency on existing/installed parent site.
Issue #2211831 by mdrummond, jayeshanandani: Removal of alt attribute from [picture] tag.
Issue #2218849 by hellboy2k8: Remove unused line from twig_render_template().
Issue #2218199 by andypost: Move email and number field types to \Drupal\Core\Field, remove modules.
Issue #2016701 by Berdir, ceng, alarcombe, daffie, rhm50: Expand TermInterface to provide methods.
Issue #2155635 by Berdir, tim.plunkett, dawehner: Allow plugin managers to opt in to cache clear during module install.
Issue #340723 by ParisLiakos, sun, Berdir, glennpratt, Cottser, swentel, tstoeckler, Xano, tim.plunkett, BassistJimmyJam: Make modules and installation profiles only require .info.yml files.