Issue #2575735 by almaudoh: LibraryDiscoveryCollector::reset() does not properly reset its $cid, resulting in loading wrong library assets if the active theme changes

Issue #2584745 by mbovan, s_leu: Entity references should be displayed translated on non translatable  entity types

Issue #2593481 by Wim Leers: PlaceholderGenerator::createPlaceholder() generates invalid markup; causes placeholders to not be replaced if processed by DOMDocument

Issue #1938900 by joelpittet, lokapujya, Cottser, lauriii, swentel, neochief, tstoeckler, andypost, duellj: Convert theme_field_ui_table into a template (DIE THEME FUNCTIONS DIE)

Issue #2512468 by bendev, munzirtaha, rudraram, chipway, emma.maria, cchanana, elchiconube, Manjit.Singh, jim005, trevorkjorlien, fil00dl, meenakshi.r, davidhernandez, rbrissaud, Knee-X, LewisNyman: Regression: Indented styles for indented comments are missing in Bartik

Issue #1938912 by Manuel Garcia, joelpittet, lokapujya, duellj, Cottser, akalata, pplantinga, mdrummond, rpayanm, Hydra, lauriii: Convert language content setting table theme to a twig template

Issue #2544176 by lauriii, joelpittet: Remove drupal_render_children() usage in Drupal\toolbar\Element\Toolbar

Issue #2582309 by neclimdul, joelpittet, YesCT, dawehner, tim.plunkett: Cookies get lost during RedirectResponse replacement

Issue #2585781 by anil280988, Davinder.Snehi, sdstyles, lucian.gutoiu, Chi, jhodgdon, GoZ, YesCT: Wrong documentation of t()

Issue #2580569 by anavarre, Davinder.Snehi, Schnitzel, jhodgdon: Update documentation that mentions active CMI directory. active was removed

Issue #2597548 by jhodgdon, tim.plunkett: Useless message thrown by SqlContentEntityStorage::wrapSchemaException()

Issue #2583135 by Torenware, klausi: Context::getContextData() sometimes returns NULL which violates ContextInterface

Issue #2597137 by Dom., jhodgdon, dawehner: Missing schema error on 'sorts.score.expose' views configurations

Issue #2582577 by Shlyapkin Grigoriy, Liam Morland, stefan.r, mradcliffe, oriol_e9g, shazbot28: D8 install should check MySQL version (Syntax error or access violation: 1115 Unknown character set: 'utf8mb4')

Issue #2128055 by slashrsm, anavarre, timhilliard, estoyausente, nielsvm, effulgentsia, rteijeiro, rootwork, stijntilleman, jonhattan, Crell, webchick, Dave Reid, attiks, meba, Fidelix, Pls, toamit, brantwynn, YesCT, erwangel: Files should be uploaded to directories based on tokens by default

Issue #2588945 by phenaproxima, mikeryan, neclimdul: term_node migration fails in weird ways if node migration failed

Issue #2562581 by mikeryan, a_thakur, jhodgdon, phenaproxima, cilefen, ultimike: Update UPGRADE.txt for RC

Issue #2527126 by Wim Leers, dawehner, effulgentsia, anavarre, janusman, Fabianx, alexpott, hass, catch, Berdir, znerol: Only send X-Drupal-Cache-Tags and -Contexts headers when developer explicitly enables them

Issue #2588827 by phenaproxima, neclimdul, svendecabooter, benjy, mikeryan: CCK migrations seem to have trouble with some checkbox types

Issue #2486999 by metzlerd, er.pushpinderrana, jhodgdon: Create Documentation For Button Form Elements

Issue #2588547 by mikeryan, dawehner, YesCT: CommentLinkBuilder causes fatal error when comment field not named 'comment'

Issue #2582457 by Mixologic, dawehner: Failed PHP Unit tests should report detailed information (regression)

Issue #2594263 by phenaproxima, neclimdul, Gábor Hojtsy, Kazanir: Add translation data to Migrate Drupal's test fixtures

Issue #2550309 by webflo, phenaproxima, kaushashah: Unable to import migration config-entities generated by migrate_upgrade module

Issue #2559345 by lostkangaroo, phenaproxima, benjy, neclimdul: Document source_provider and minimum_schema_version annotation properties

Issue #2560637 by phenaproxima, benjy, quietone, mikeryan, chx, neclimdul: Improve handling of uid 1 during migration

Issue #2573165 by tunic, hussainweb, elachlan, dawehner, Jaesin, grom358, cilefen: Step 1.5: Make the driver swappable more easy