Issue #2454447 by andypost, dawehner, rteijeiro: Split Utility\String class to support PHP 7 (String is a reserved word)

Issue #2090115 by alexpott, xjm: Don't install a module when its default configuration has unmet dependencies

Issue #2394419 by hussainweb, cilefen, sachinwable: Clean-up file module test members - ensure property definition and use of camelCase naming convention

Issue #2373741 by Wim Leers, hussainweb: Move bulk of render pipeline documentation to d.o handbooks

Issue #2448357 by amateescu: Config entity forms need to have access to an updated entity object at all times

Issue #2303765 by davidhernandez, larowlan, mgifford: Make the default 'alt' attribute for Image fields required

Issue #2455415 by rteijeiro, hussainweb, rpayanm, baisong: Rename Views plugin classes to support PHP 7

Issue #2444211 by Wim Leers, jhodgdon: Document cacheability of render arrays, and the considerations to use when generating render arrays

Issue #2388349 by almaudoh: FormState::cleanValues() doesn't conform with the FormStateInterface documentation

Issue #2456459 by andypost: CommentInterface::getCommentedEntity() should return FieldableEntityInterface

Issue #2148319 by crazyrohila, juankvillegas, Manjit.Singh, poojakural, Chloe Chen, joshtaylor: h2 on footer blocks must be hidden by default but must show when its enable

Issue #2337509 by amateescu: Remove "@todo In theory we should use the data table as base table, as this would" from EntityViewsData

Issue #731298 by pjonckiere, jhodgdon: Searches for words with diacritics/accents: word not highlighted in results

Issue #2452247 by rteijeiro, joshi.rohit100: Incorrect constructor docblock for RequestCloseSubscriber

Issue #2452371 by Palashvijay4O: Remove @addtogroup themeable from theme.inc, only theme_indentation() needs it

Issue #2331907 by LewisNyman, alvar0hurtad0, tim-diels, tstoeckler, jOksanen, lduerig, psebborn, Outi: Seven theme's uppercasing of details summaries fails on the Simpletest results form

Issue #2455083 by dawehner, larowlan, klausi, David_Rothstein, hefox, tsphethean, dstol, DamienMcKenna, Pere Orga, benjy: Open redirect fixes from SA-CORE-2015-001 need to be ported to Drupal 8

Issue #2424171 by vijaycs85, likin, Gábor Hojtsy, Wim Leers: Language module vs. content translation module interaction exposes content translation bug

Issue #2346435 by fago: Improve interface-related instructins for providing an entity type to be accurate

Issue #2451085 by dawehner, Arla: _drupal_log_error() passes NULL to ThemeManager::setActiveTheme(), violating its typehint

Issue #1919930 by tim.plunkett, nlisgo: Bundle entity form IDs violate module namespaces (both on server-side + front-end CSS)