Issue #1912600 by joelpittet, bzitzow, dawehner: Remove theme_views_form_views_form() in favour of a prerender callback.

Issue #1933426 follow-up by dawehner: Fixed documentation around drupal_add_js -> drupal_add_library change.

Issue #2022897 by dawehner, sdboyer, tim.plunkett: Shift responsibility for creating unique config id/machine name off of (views) block plugins and onto BlockFormController.

Issue #2050883 by Cottser, tstoeckler, dawehner: Fix references to obsolete functions in code comments in views module

Issue #1812048 by mikeker, Pancho, dawehner, tim.plunkett: Build the exposed form using form API functions.

Issue #2032031 by damiankloip: Deprecate use of views_get_view() function in favour of Views::getView() method.

Issue #1754246 by webflo, swentel, penyaskito, andypost, alexpott, YesCT, dagmar: Languages should be configuration entities.

Issue #2013939 by swentel, amateescu, pcambra: Remove hook_field_CRUD_() in favor of hook_entity_TYPE_CRUD() calls.

Issue #1998582 by damiankloip, brantwynn, dawehner: Auto-generate machine_name() for Views Blocks using [viewname]_[displayname] rather than forcing manual entry.

Issue #2005616 by mikeker: Views should use ['#attached']['library'] rather than ['#attached']['css'].

Issue #2002934 by drupee, damiankloip, x.algorithm, kevin.reiss, heddn: Rename Views method validate_argument() to validateArgument().

Issue #2002500 by fmizzell, jibran: Rename Views method exposed_form_validate() to exposedFormValidate().

Issue #1993330 by damiankloip: Move views_handler_field_custom_pre_render_move_text() function to a class method on Drupal\views\Plugin\views\field\Custom.

Issue #1879774 by damiankloip, dawehner, effulgentsia: catch plugin exceptions for invalid views display plugins.

Issue #2002498 by diarmy, phenaproxima: Rename Views method exposed_form_submit() to exposedFormSubmit().

Issue #1620010 by dawehner, ParisLiakos, plach, jibran: Move LANGUAGE constants to the Language class.

Issue #1843742 by chrisjlee, joelpittet, 2ndmile: Convert views/templates/views-more.tpl.php to twig.

Issue #914382 by Wim Leers, Cottser, Gábor Hojtsy, franz, droplet, sun, Niklas Fiekas, catch, dawehner, effulgentsia: Fixed Contextual links incompatible with render cache.

Issue #1912606 by jastraat, gollyg, Cottser, joelpittet: Remove theme_views_view_grouping() function.

Issue #1927608 by EclipseGc, tim.plunkett, effulgentsia: Remove the tight coupling between Block Plugins and Block Entities.