Issue #2553533 by alexpott, dawehner, amateescu, hussainweb: KernelTestBaseTNG™ is not cleaning up after itself

Issue #2490388 by hussainweb, Ankit Agrawal, joelpittet, dawehner: InfoParserUnitTest web test classes mislabeled as unit tests

Issue #2555565 by darol100: Fix typo in core/tests/Drupal/Tests/Component/DependencyInjection/Dumper/OptimizedPhpArrayDumperTest.php

Issue #2552579 by alexpott: Remove SafeMarkup::placeholder(), deprecate drupal_placeholder() and stop drupal_placeholder() from marking safe

Issue #939462 by lauriii, Antti J. Salminen, NROTC_Webmaster, mbrett5062, tim.plunkett, tostinni, rteijeiro, dvessel, cilefen, barraponto, theapi, joelpittet, Xano, tuutti, drzraf, Fabianx, markcarver, xjm, catch, Cottser, sun, jenlampton, effulgentsia, davidhernandez, kscheirer, akalata, andypost, hass, rooby, jhodgdon, fubhy, becw, MXT, mlncn, lemunet, chriscalip, mike stewart, PavanL, kevinquillen, gleroux02: Specific preprocess functions for theme hook suggestions are not invoked

Issue #977844 by Wim Leers: Remove the 'every_page' option for CSS/JS assets: it is confusing, even damaging

Issue #2497243 by Fabianx, znerol, fgm, Wim Leers, darol100, jhedstrom, hussainweb, pfrenssen, neclimdul, jibran, Nitesh Sethia, dawehner, chx, catch, benjy, Aki Tendo: Replace Symfony container with a Drupal one, stored in cache

Issue #2550055 by geertvd, alexpott: Remove SafeMarkup::replace() and use ViewsRenderPipelineSafeString instead

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

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

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

Issue #2551335 by alexpott, Wim Leers: Remove unnecessary SafeMarkup usage in tests and clear the static cache before every run

Issue #2304461 by dawehner, neclimdul, naveenvalecha, jibran, tim.plunkett, phenaproxima, Xano, hussainweb, sun, hitesh-jain, amateescu, alexpott, daffie, Mile23, Wim Leers, larowlan: KernelTestBaseTNG™

Issue #2526326 by borisson_, Berdir, Wim Leers, Xano: Update CacheableMetadata & AccessResult to use RefinableCacheableDependency(Interface|Trait)

Issue #2483183 by lauriii, martin107, Wim Leers, tim.plunkett, moshe weitzman, bfr, Fabianx, dawehner: Make breadcrumb block cacheable

Issue #2501931 by alexpott, alimac, cmanalansan, davidhernandez, scotself, cilefen, RavindraSingh, peezy, YesCT, pwolanin: Remove SafeMarkup::set in twig_render_template() and ThemeManager and FieldPluginBase:advancedRender

Issue #2542830 by borisson_, PieterJanPut, RavindraSingh, Wim Leers, catch: Change placeholder token generation from using sha1 to crc32b

Revert "Issue #2501931 by alexpott, alimac, cmanalansan, davidhernandez, scotself, cilefen, RavindraSingh, peezy, YesCT, pwolanin: Remove SafeMarkup::set in twig_render_template() and ThemeManager and FieldPluginBase:advancedRender"

This reverts commit 9ccb44e2.

Issue #2501931 by alexpott, alimac, cmanalansan, davidhernandez, scotself, cilefen, RavindraSingh, peezy, YesCT, pwolanin: Remove SafeMarkup::set in twig_render_template() and ThemeManager and FieldPluginBase:advancedRender

Issue #2296101 by josephdpurcell, akalata, cilefen, joelpittet, aneek, YesCT, alexpott, davidhernandez, xjm, crowdcg: Remove SafeMarkup::set() use in \Drupal\Core\Render\Element\HtmlTag::preRenderHtmlTag()

Issue #2544262 by stefan.r, josephdpurcell, akalata, YesCT, joelpittet: Refactor use of SafeMarkup::set in \Drupal\Core\Render\Element\HtmlTag::preRenderConditionalComments()

Issue #2501117 by catch, olli, Wim Leers, dawehner: Add static caching for PermissionsHashGenerator::generate()

Issue #2497697 by marvin_B8, Crell, cilefen, joshi.rohit100, dawehner: PSR-7 support for ControllerResolver

Issue #2364467 by Mile23, neclimdul: SpecialAttributesRouteSubscriber::onAlterRoutes() doesn't return a value

Issue #2539682 by borisson_, Wim Leers: Add test to ensure composer.json is listing all core modules

Issue #2525908 by alexpott, cilefen: HtmlTag render element's prefix and suffix can be marked safe when they are not

Issue #2543332 by Wim Leers, effulgentsia, Fabianx, Crell, dawehner, borisson_: Auto-placeholdering for #lazy_builder without bubbling

Issue #2537928 by stefan.r, dawehner, alexpott, webflo, jhedstrom: MySQL index normalization only works on table create

Issue #2490228 by damiankloip, almaudoh, martin107, clemens.tolboom, -enzo-, znerol, dawehner: Add Authentication Collector