Issue #2378583 by tim.plunkett, EclipseGc: Core ContextAware Plugins have inconsistent ContextDefinition return docs

Issue #1855066 by Tom Verhaeghe, Wim Leers, benjifisher: In the "menu" toolbar tray, clicking/tapping white space should show the child level

Issue #2379083 by olli, Wim Leers: Regression (again): Menu contextual links no longer visible in menu blocks, when block caching is enabled

Issue #2378263 by Wim Leers: hook_library_alter() must be manually invoked by users of LibraryDiscovery, and has no test coverage

Issue #2346937 by dawehner, larowlan, Wim Leers, claudiu.cristea, msonnabaum: Implement a Renderer service; reduces drupal_render / _theme service container calls

Issue #2378699 by klausi, David_Rothstein, pwolanin: Port session hijacking fixes from SA-CORE-2014-006 to Drupal 8

Issue #2304949 by mpdonadio, cilefen, znerol, klausi, gaurav.goyal, regilero: Port HTTP Host header DoS fix from SA-CORE-2014-003

Issue #2378585 by EclipseGc, tim.plunkett: Multiple context requirements cannot be satisfied by a single value

Issue #2374201 by YesCT: Docs and quote coding standard follow-up from: Incorrect logic in creating url to fetch information about project updates

Issue #2378329 by almaudoh: Update AccountProxyInterface::setAccount() documentation to point people to the account_switcher service

Issue #2376899 by Gábor Hojtsy: ImageFieldTestBase::createImageField() takes a description in field settings errorneously

Issue #2141417 by babruix, Sam152, jessebeach: Trays without headings throw a JavaScript error when the non-existent heading text is accessed

Issue #2328919 by Mile23, YesCT, tim.plunkett: Remove () from a bunch of @covers definitions in PHPUnit

Issue #2318779 by Devin Carlson: [Meta] Aggregator Module: Fix documentation that refers to enabling/disabling of modules

Issue #2376039 by znerol, Wim Leers, alexpott: Undefined property ContainerAwareEventDispatcherTest::results in run-tests.sh

Revert "Issue #2189345 by sanduhrs, jbekker, joshtaylor, benjy, sun: run-tests.sh should exit with a failure code if any tests failed"

This reverts commit 1edfae73.

Revert "Issue #2376039 by znerol, Wim Leers, alexpott: Undefined property ContainerAwareEventDispatcherTest::results in run-tests.sh"

This reverts commit cbc449b8.

Issue #2339151 by EclipseGc, tim.plunkett, Gábor Hojtsy, effulgentsia: Conditions / context system does not allow for multiple configurable contexts, eg. language types

Issue #2376039 by znerol, Wim Leers, alexpott: Undefined property ContainerAwareEventDispatcherTest::results in run-tests.sh

Issue #2372323 by alexpott, amateescu: Static loaders on entity types don't return a properly typed object

Issue #2322439 by subhojit777, akashjain132, znerol, jaimekristene, japo32, ThomWilhelm: Titles in a user's activity tab displays as just text and not a link

Issue #2376147 by alexpott, joelpittet, amateescu: Installer is missing all of the global Seven theme stylesheets

Issue #2368349 by Gábor Hojtsy, alexpott: Entity view and form display configuration schemas are too verbose / key ones missing

Issue #1853072 by stevepurkiss, larowlan, bjlewis2, mgifford, stefank: Remove forum_menu_local_tasks_alter() hack and instead add links in ForumController::build

Issue #2288911 by znerol, effulgentsia: Use route name instead of system path in user maintenance mode subscriber