Issue #2564577 by snehi, borisson_, Wim Leers, r_sharma08, lauriii: Improve comments on PlaceholderGeneratorInterface::shouldAutomaticallyPlaceholder() and DynamicPageCacheSubscriber::shouldCacheResponse()

Issue #2612618 by anil280988, r_sharma08, Cottser, davidhernandez, kaushalkishorejaiswal: Add README.txt file to Stable explain its role as a backwards compatibility layer

(cherry picked from commit d1d0c6e6)

(cherry picked from commit 96f86e68)

Issue #2607332 by r_sharma08, ashhishhh, snehi, pjonckiere, dawehner: Missing @return tag in getActiveHelp(), denormalize(), createBookNode()

(cherry picked from commit 0a97f790)

Issue #2628702 by zerolab, joachim: hook_entity_extra_field_info() @return references non-existent method

(cherry picked from commit 010b9ec0)

Issue #2600718 by rakesh.gectcr, xjm, Mile23, dawehner: Add composer.json to \Drupal\Component\Bridge component

Issue #2105583 by neclimdul, tim.plunkett, dawehner, Mile23: Add some sane strictness to phpunit tests to catch risky tests

(cherry picked from commit 136b1d45)

Issue #2623790 by roderik, priya.chat, stefan.r: Update SessionManager::migrateStoredSession() method comment

(cherry picked from commit 820b2f53)

(cherry picked from commit c26981d8)

(cherry picked from commit 09c51315)

Issue #2606344 by rakesh.gectcr, aneeshthankachan, dawehner, cilefen: Wrong @param doc for construct function in class CoreServiceProvider

(cherry picked from commit 74493510)

Issue #2604018 by heykarthikwithu, snehi, kaushalkishorejaiswal, pjonckiere: Add @param documentation in __construct() of User module

(cherry picked from commit cbe1e395)

Issue #2603818 by jhodgdon, beejeebus, blackra: Add defgroups for listing page headers for api.drupal.org

Issue #2616498 by neclimdul, dawehner, Mixologic: Drupal\Core\Routing\RouteProvider::getCandidateOutlines() does an illegal shift when config is empty

Issue #2625216 by alexpott: LocaleConfigManager::getTranslatableDefaultConfig() reads config from uninstalled modules

Issue #2621782 by amateescu: SQL::addWhere not defaulting to "IN" operator when using EntityReferenceView for multiple values

Issue #2572695 by marvin_B8, attiks, pfrenssen, xjm: Fix 'Drupal.ControlStructures.ElseIf' coding standard

Issue #2443709 by Xano, mikeryan, benjy: Some plugin annotations contains legacy "derivative" property

Issue #2618040 by Maouna, plach, catch, YesCT, steelsector, matsbla, SiliconMind, vodde83: Configuration of configurable language types reset after module install

Issue #2623680 by alexpott, pfrenssen: Fix phpcs.xml.dist to work with the latest rules and not have unnecessary lines

Issue #2604038 by heykarthikwithu: Views module's "base.js" function "Drupal.Views.parseViewArgs", Local variable 'args' is redundant

Issue #2075889 by kgoel, pwolanin, catch, YesCT, dawehner, mpdonadio, johnshortess, Crell, mradcliffe, alexpott, webchick, ohthehugemanatee: Document that Drupal will handle incoming paths in a consistent and case-insensitive fashion for routing

Issue #2610236 by cilefen, aerozeppelin: Views - "No Results Behavior" for individual fields escapes HTML