Issue #2349819 by amateescu, swentel, Leksat, larowlan, dawehner, Gábor Hojtsy, mpdonadio, benjy, jmuzz, yched, jibran, marthinal, dmsmidt: String field type doesn't consider empty string as empty value

Issue #2549323 by amateescu, mradcliffe, Damien Tournoud: Improve the Upsert query implementation for PostgreSQL

Issue #2552013 by Wim Leers: Follow-up for #2481453: ensure the 'url.query_args': MainContentViewSubscriber::WRAPPER_FORMAT cache context is set

Issue #2554229 by stefan.r, csabot3, Crell, pwolanin, YesCT, ircmaxell, greggles, larowlan, webchick: Port SQL Injection - Database API fixes from SA-CORE-2015-003 to Drupal 8

Issue #2338167 by alexpott, rbmboogie: Update ProjectInfo class to reflect changes to extension system

Issue #2550965 by joelpittet, kgoel, stefan.r, josephdpurcell, akalata: Remove SafeMarkup::set() in ValidationTest::assertErrorMessages()

Issue #2501319 by joelpittet, cwells, stefan.r, YesCT, nlisgo, Cottser, cmanalansan, dawehner, xjm, alexpott, josephdpurcell: Remove SafeMarkup::set() in Error::renderExceptionSafe() and _drupal_log_error() and improve backtrace formatting consistency in _drupal_log_error(), Error::renderExceptionSafe(), and DefaultExceptionSubscriber::onHtml()

Issue #2551341 by stefan.r: Update test database dump should be based on beta 12 and contain content

Issue #2296929 by stefan.r, josephdpurcell, codemonkie, YesCT, alexpott, akalata, herved, xjm, joelpittet, David_Rothstein, aneek, lauriii, kgoel, Cottser, effulgentsia, pfrenssen, pwolanin, Mile23: Remove system_requirements() SafeMarkup::set() use

Issue #2553969 by alexpott, dawehner, xjm: Use \Twig_Markup in twig_drupal_join_filter() since it is part of Twig and should not pollute the safe list

Issue #2547851 by alexpott, joelpittet, dawehner, stefan.r, xjm: SafeMarkup::format() should require arguments without them it is just SafeMarkup::set() in disguise

Issue #2488304 by genjohnson, lauriii, YesCT, Mariano, Gábor Hojtsy, jhodgdon, xjm: Add more docs that translate() also marks strings as safe

Issue #2551725 by YesCT, dorficus, josephdpurcell, joelpittet, stefan.r, willzyx, alexpott: Remove system_requirements() SafeMarkup::set() use with 'value' key

Issue #2549791 by alexpott, Wim Leers: Remove SafeMarkup::xssFilter() and provide ability to define #markup escaping strategy and what tags to filter

Issue #2552175 by nlisgo, Wim Leers: Follow-up for #2398463: Bartik is telling CKEditor to load a CSS file that no longer exists

Issue #2550467 and #2120113 by alexpott, manningpete, akalata, nlisgo, nod_, harjotsingh: Remove #value_prefix and #value_suffix from HtmlTag

Issue #2546078 by ravenstar, albertski: Update report shows up-to-date modules with "color-error" style

Issue #2533978 by Denchev, Dave Reid, legolasbo, Berdir: $entity->access('view|download') for unattached public files returns FALSE

Issue #2552187 by Wim Leers, LewisNyman: Follow-up for #2395853: CKEditor is loading system.modules.css, which no longer exists

Issue #2553245 by stefan.r, martin107: KernelTestBase uses a disallowed constant in calls to trigger_error

Issue #1713332 by amateescu, Xen, droplet, bzrudi71, znerol, czigor, pp, wulff, Damien Tournoud: The SQLite database driver fails to drop simpletest tables

Issue #2531042 by sdstyles, Berdir: Undefined string index 0 in WebTestBase::getAbsoluteUrl() in PHP 7

Issue #2552519 by andypost: Fix \Drupal\contact\ContactFormAccessControlHandler::checkAccess() visibility

Issue #2551989 by Wim Leers, Crell: Move replacing of placeholders from HtmlRenderer to HtmlResponseAttachmentsProcessor

Issue #2228823 by StryKaizer, ParisLiakos, joshi.rohit100, Nitesh Sethia, Aron Novak, geertvd: Aggregator feed overview misleading text

Issue #2551579 by jibran, geertvd: Don't access frontpage before running updates in UpdatePathTestBaseTest::testDatabaseLoaded()

Issue #2551429 by Wim Leers, stefan.r, jibran, larowlan: FieldUI should accommodate route options in RouteSubscriber