Issue #2350949 by Wim Leers: Add hook_page_attachments(_alter)() and deprecate hook_page_build/alter().

Issue #2340667 by YesCT, Pedro Lozano, alexpott, martin107: Protect Drupal\Core\Language\Language::id, and use getId().

Issue #2350877 by dawehner, Wim Leers, hussainweb: Deprecate/rename drupal_add_feed(), drupal_add_html_head(), drupal_add_html_head_link(), drupal_add_http_header(), and allow to be set declaratively in #attached.

Issue #2246675 by rpayanm, johnstorey, holly.ross.drupal | mgbellaire: Remove all unnecessary 'template' lines in hook_theme() declarations.

Issue #2322067 by Temoor, ashutoshsngh, roderik, finn.lewis: Replace all instances of taxonomy_term_load(), entity_load('taxonomy_term') and entity_load_multiple('taxonomy_term') with static method calls.

Issue #2340251 by iMiksu, alexpott, tim.plunkett, dawehner, Wim Leers: Remove most remaining url() calls.

Issue #2312093 by alexpott, yched, andypost, swentel | xjm: Rename FieldInstanceConfig to FieldConfig.

Issue #1976298 by larowlan: Move taxonomy_get_tree() and associated functions to Taxonomy storage, deprecate procedural wrappers.

Issue #2328411 by dawehner, geerlingguy, herom: Convert all permissions to yml files and permission callbacks.

Issue #1857256 by dawehner, xjm, tim.plunkett, jibran, ParisLiakos, hussainweb, pcambra, ekes, InternetDevels, rhabbachi, rdrh555, tstoeckler, oadaeh, Gábor Hojtsy, vijaycs85: Fixed Convert the taxonomy listing and feed at /taxonomy/term/%term to Views.

Issue #2318281 by tim.plunkett, dawehner | kim.pepper: Provide a standard way to check a plugin is an instance of the required interface.

Issue #2329775 by lauriii | davidhernandez: Move taxonomy term classes from preprocess to templates.

Issue #1976158 by Berdir | msonnabaum: Rename entity storage/list/form/render "controllers" to handlers.

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

Issue #2078473 by blueminds | Berdir: Added Use entity access API for checking access to private files.

Issue #2216535 by jhodgdon, Berdir: Replace Node overview topic and Node API topic with Entity Hooks topic.

Issue #2238217 by effulgentsia, neclimdul, martin107, tim.plunkett, cweagans, kim.pepper, xjm: Introduce a RouteMatch class.

Issue #2190313 by pfrenssen, Berdir, amateescu, ianthomas_uk: Add $EntityType::load() and loadMultiple() to simplify loading entities.

Issue #2183113 by jhodgdon, effulgentsia, tim.plunkett, herom, larowlan: Update hook_help signature to use route_name instead of path.

Issue #610076 by fietserwin, yingtho, te-brian, mikeryan, Dave Cohen: Add a primary key to the {taxonomy_index} table and prevent duplicates being inserted.

Issue #2225739 by killua99, Berdir, andypost, pfrenssen: Remove usage of field_info_instances(), use EntityManager::getFieldDefinitions() instead.

Issue #2228903 by anthonylindsay | alexpott: Taxonomy_term_load_children claims to restrict by vid but this is not possible.

Issue #2225431 by mr.baileys, Wim Leers, swentel: Apply formatters and widgets to Taxonomy Term base fields.

Issue #2226903 by pwolanin, dawehner, tvn, martin107, jessebeach: Step 1: Move static menu links to yml files.

Issue #2178725 by pwolanin, crowdcg, effulgentsia, Sutharsan: Make all core menu link machine names and the corresponding route names match.

Issue #1316692 by tim.plunkett, dawehner: Convert hook_admin_paths() into declarative properties on routes.

Issue #2204143 by ianthomas_uk, sun: Remove deprecated drupal_explode_tags() and drupal_implode_tags().