Issue #2568171 by Cottser, dawehner, hussainweb, Wim Leers, cilefen, znerol: Upgrade to Twig 1.22 and implement our own cache class

Issue #2568775 by dawehner, lauriii, alexpott, joelpittet, xjm: Replace remaining !placeholder for Non-URL HTML outputs only for $e->getMessage()

Issue #2565895 by dawehner, stefan.r, googletorp, effulgentsia, lauriii, jcnventura, David_Rothstein, catch, xjm, joelpittet, pwolanin, plach, larowlan, cilefen: Add a new :placeholder to SafeMarkup::format() for URLs that handles bad protocols

Issue #2570107 by alexpott: Make format_plural() return a PluralTranslatableString object to remove reliance on a static, unpredictable safe list

Issue #2473947 by Cottser, davidhernandez, rachel_norfolk, rteijeiro, cilefen, alimac, akalata, YesCT, mortendk: Prefix form-item-* classes with js-

Issue #2567741 by mr.baileys: Attribute/drupal_attributes() docs do not mention protocol filtering on URLs

Issue #2543334 by Wim Leers, lauriii, Fabianx: Auto-placeholdering for #lazy_builder with bubbling of contexts and tags

Issue #2569069 by stefan.r, mr.baileys, alexpott, lauriii: Replace TranslationWrapper with TranslatableString and deprecate TranslationWrapper

Issue #2569281 by iMiksu, dawehner, lauriii, alexpott, joelpittet, xjm: Change translatable string with !placeholder AccountForm to use a URL instead of a generated link and provide better context

Issue #1894596 by googletorp, tstoeckler, swentel, Uccio, Gábor Hojtsy: Account settings cannot be saved anymore if content translation module is installed

Issue #2568977 by alexpott, dawehner, pwolanin, Wim Leers: Replace SafeMarkup::format() in the link generator - it's a bad example to everyone

Issue #2563955 by bruvers, sushantpaste, shwetaneelsharma, LewisNyman: Confirm Password "Passwords match" text color

Issue #2565123 by joelpittet, lauriii: Move logic from SafeMarkup::format() from template_preprocess_locale_translation_update_info() to template

Issue #1934568 by David_Rothstein, StryKaizer, borisson_, martin107, pwolanin, ofry, amitgoyal: Allow sites using the 'image_allow_insecure_derivatives' variable to have partial protection from the Drupal 7.20 security issue

Issue #2553661 by claudiu.cristea, geertvd, dawehner, Xano, neclimdul: KernelTestBase fails to set up FileCache

Issue #2568793 by joelpittet, alexpott, Cottser, klausi: Replace remaining !placeholder for Non-URL HTML when format_size() is involved

Issue #2557113 by stefan.r, alexpott, dawehner, joelpittet, cilefen, lauriii, plach, catch, chx, xjm: Make t() return a TranslationWrapper object to remove reliance on a static, unpredictable safe list

Issue #2569289 by lauriii, dawehner, stefan.r: Replace remaining !placeholder for Non-URL HTML outputs only in #title in file widgets

Issue #2569279 by dawehner, izus: Replace remaining !placeholder for Non-URL HTML outputs only in contextual.module

Issue #2477223 by Mile23, Wim Leers, j2r, ianthomas_uk, jaimeguzman, pjbaert: Refactor _drupal_add_html_head, drupal_get_html_head, _drupal_add_html_head_link into the attachments processor, remove from common.inc

This reverts commit 33608908.

Issue #2545972 by alexpott, joelpittet, ericjenkins, stefan.r, Wim Leers, Cottser: Remove all code usages SafeMarkup::checkPlain() and rely more on Twig autoescaping

Issue #2569295 by geertvd, lauriii: Replace remaining !placeholder for Non-URL HTML outputs only in #title lines

Issue #2569293 by lauriii, alexpott, dawehner: Replace remaining !placeholder for Non-URL HTML outputs only in code Table.php

Issue #2552865 by Mile23: Deprecate drupal_process_attached() for 8.0.0 and either throw an Exception or make it work via the RenderContext

Issue #2568781 by dawehner, lauriii, stefan.r: Replace remaining !placeholder for Non-URL HTML outputs only for $entity->label()

Issue #2408165 by phenaproxima, miguelc303, quietone, eliza411, tim.plunkett, bdone, benjy: Migration Files for Drupal 7  Blocks

Issue #2568603 by dawehner, xjm, pguillard: Replace remaining !placeholder for Non-URL HTML outputs only in core/lib/Drupal/Core/Database/Driver/pgsql/Install/Tasks.php

Issue #2569371 by Wim Leers: Update Renderer::createPlaceholder() to not use Attribute and SafeMarkup::format()

Issue #2568607 by alexpott, dawehner: Replace remaining !placeholder for Non-URL HTML outputs only in Theme name stuff in SystemController

Issue #2568611 by alexpott: Replace remaining !placeholder for Non-URL HTML outputs only in search_excerpt()

Issue #2568609 by alexpott: Replace remaining !placeholder for Non-URL HTML outputs only in theme functions in system.admin.inc

Issue #2560863 by alexpott, stefan.r, lauriii: #options for radios and checkboxes uses SafeMarkup::checkPlain() to escape - use Html::escape() instead

Issue #2568605 by pguillard: Replace remaining !placeholder for Non-URL HTML outputs only in template_preprocess_comment()