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

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

Issue #2473945 by Cottser, rachel_norfolk, axe312, davidhernandez, yannickoo, emma.maria, cilefen, akalata, jaxxed, LewisNyman: Prefix form-item classes with js-

Issue #2188165 by tim.plunkett, dww: [Regression] View term filter 'is/not empty' and 'not one of' operators do not work

Issue #2452577 by JeroenT, AjitS, tadityar, arpitr, dpopdan, Mile23, andypost: Remove Usage of deprecated function taxonomy_*

Issue #2457887 by prateekMehta, stefan.r, rpayanm, alexpott: Use Utility\SafeMarkup class instead of Utility\String for placeholder(), checkPlain(),format() functions

Issue #2451679 by Wim Leers, dawehner: Validate cache contexts (+ cache contexts in some views plugins wrong)

Issue #2358079 by pwolanin, Berdir: Require a specific placeholder format in db_query() in order to trigger argument expansion, and require explicit 'IN' parameter for conditions

Issue #2322105 by rpayanm, prics, Upchuk, Temoor, seanB, pcambra, jamesdixon: Replace all instances of taxonomy_vocabulary_load(), taxonomy_vocabulary_load_multiple(), entity_load('taxonomy_vocabulary') and entity_load_multiple('taxonomy_vocabulary') with static method calls

Issue #2309737 by rpayanm, hussainweb, max-kuzomko, herom, millerbennett, ianthomas_uk, quietone, Sutharsan, sumitmadan, toddmbloom: Remove deprecated format_plural usage

Issue #2325269 by Gábor Hojtsy, Arla: Test and fix views in test_views directories against their configuration schema

Issue #2318377 by dawehner, Wim Leers, damiankloip: Determine whether a view is cacheable and its required contexts, store this i/t config entity.

Issue #1922966 by jibran, damiankloip: Remove 'bool' and 'translatable' key from option definitions.

Issue #2183421 by alimac, Crisz, InternetDevels, schnippy, evilehk, bender404 | bohart: In InOperator Rename Views properties to core standards.

Issue #2335659 by tim.plunkett, dawehner, effulgentsia, sun: Remove FormState ArrayAccess usage from core.

Issue #1498660 by marco, plach, andypost, YesCT, Berdir | dawehner: Refactor taxonomy entity properties to multilingual.

Issue #1981368 by tim.plunkett, Crell, webchick: Convert all routes to 'module_name().foo_bar()' naming convention.

Issue #1979038 by dawehner, effulgentsia, tstoeckler: Convert views_ajax_autocomplete_taxonomy() to a Controller.

Issue #1823204 by Chi, damiankloip, dawehner: Fixed Class 'Drupal\taxonomy\Plugin\views\filter\stdClass' not found .

Issue #2003236 by kenianbei, zschmid, Dan Reinders: Rename Views method value_submit() to valueSubmit().

Issue #2002932 by zschmid, jastraat, vito_a | Dan Reinders: Rename Views method value_form() to valueForm().

Issue #2003500 by tyjamessmith, aviindub, marlatt: Rename Views method get_value_options() to getValueOptions().