Issue #2078387 by Xano, andypost, twistor, splatio, InternetDevels, amateescu, Berdir, larowlan, vladan.me: Add an EntityOwnerInterface.

Issue #2176721 by maartendeblock, nod_: 'Back to site' button does not preserve URL's language prefix and querystring.

Issue #2182265 by Sweetchuck, nod_: Javascript file translations are several bugs away from working at all.

Issue #2110501 by tim.plunkett, pwolanin, tstoeckler: ControllerBase should implement ContainerInjectionInterface like FormBase.

Issue #2049573 by pcambra, damiankloip, tim.plunkett, dawehner: Move most or all of the ActionBulkForm class to BulkFormBase.

Issue #1069152 by droplet, alexandrezia, jhedstrom | ogi: Throbber in textfield is misaligned when browser hardware acceleration enabled (gfx).

Issue #2162729 by TravisCarden, Xano, InternetDevels: "Sub-class must implement the getInfo method" not a helpful exception message.

Issue #1928752 by mtift, jenlampton: Put all test modules into the 'testing' Fieldset on the modules page (file module).

Issue #2168011 by xjm, jessebeach, Damien Tournoud, znerol, Xano: Remove all 7.x to 8.x update hooks and disallow updates from the previous major version.

Issue #2176105 by sun: Installer catches exceptions and manually re-prints them; does not use error/exception handler.

Issue #2156649 by likin, amateescu: The 'entity_reference_autocomplete' widget doesn't handle multiple values correctly.

Issue #2083733 by maartendeblock, JurgenR, Cyclodex, Pixelstyle, tankerjoe: Add reinstall instructions to INSTALL.txt

Issue #2164827 by Berdir, Xano, tim.plunkett: Rename the entityInfo() and entityType() methods on EntityInterface and EntityStorageControllerInterface.

Issue #2167623 by danilenko_dn, sidharthap, Nitesh Sethia, krishnan.n, aitiba, alexpott, ashwinikumar, Barrett, damiankloip, deepakaryan1988, foxtrotcharlie, ianthomas_uk, neetu morwani, nonsie, piyuesh23, Sharique, sivaji, sushantpaste, swentel, vijaycs85, YesCT: Add test for all default configuration to ensure schema exists and is correct.

Issue #2184315 by Wim Leers: Move filter_get_filter_types_by_format() and filter_get_html_restrictions_by_format() onto FilterFormatInterface.

Issue #2056445 by alexpott, Marcus Maihoff, rahul.shinde: Ensure that all config can not be deleted using the config importer.

Issue #2167039 by likin, dawehner, Wim Leers, tstoeckler, vijaycs85: Regression: page cache tags broken, also: some routes incorrectly use _controller -> No page object in template variables -> Fatal in seven_preprocess_page().