Issue #2428703 by Wim Leers: Add a 'user.permissions' cache context (was: "Should cache contexts be able to associate a cache tag?")

Issue #356399 by dawehner, beejeebus, catch, sidharrell, klausi, nlisgo, Josh Waihi, Berdir, martin107: Optimize the route rebuilding process to rebuild on write

Issue #2447831 by gordon: "The content access permissions need to be rebuilt" message not being escaped correctly

Issue #2322639 by hussainweb, LinL, Temoor, oenie, MKorostoff, mglaman, kyuubi, unstatu, omers, pcambra, legolasbo, benjy, JeroenT: Replace all instances of node_type_load(), node_type_get_types(), entity_load('node_type') and entity_load_multiple('node_type') with static method calls from DRUPAL SOUTH WOOOO!

Issue #2195183 by cleaver, sandykadam, elgordogrande, jhodgdon, joachim, Eda, hussainweb: document Batch API callbacks as callback implementations

Issue #2094499 by amateescu: Convert "Manage (form) display" forms to be the official entity edit forms for EntityView[Form]Display objects

Issue #2392319 by alexpott, effulgentsia: Config objects (but not config entities) should by default be immutable

Issue #2281645 by dawehner, andypost: Make entity annotations use link templates instead of route names

Issue #2329753 by lauriii, davidhernandez, LewisNyman, nathandao: Move html classes from preprocess to templates

Issue #2384481 by rpayanm, daffie, tadityar, hussainweb, areke, claudiu.cristea: Make the class variables protected for NodeType

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

Issue #2230637 by plach, fran seva, yched, swentel: Create a Language field widget and the related formatter

Issue #2382543 by rpayanm, ianthomas_uk: Remove usage of drupal_html_class() and drupal_clean_css_identifier()

Issue #2355909 by penyaskito, alexpott, Gábor Hojtsy, DuaelFr: language.settings config is not scalable

Issue #1938920 by akalata, Jon Pugh, joelpittet, shanethehat, lauriii, martin107, nicholasruunu: Convert node_search_admin theme tables to table #type

Issue #1426804 by alexpott, swentel: Fixed Allow field storages to be persisted when they have no fields.

Issue #2322509 by prics, cilefen, gaurav.goyal, harijari, Temoor: Replace all instances of node_load(), node_load_multiple(), entity_load('node') and entity_load_multiple('node') with static method calls.

Issue #2361681 by Wim Leers: drupal_render(): invert second argument ($is_recursive_call -> $is_root_call) => more strict, better DX/TX.

Issue #2316561 by jmolivas | YesCT: Type hint hooks with interface: ConfigurableLanguageInterface instead of LanguageEntity/ConfigurableLanguage.

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

Issue #2331113 by David_Rothstein: Fixed Node access rebuilds are completely broken when being rebuilt through a batch process?.

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

Issue #2226207 by lauriii, mgbellaire, Cottser, m1r1k, Mark Carver, LinL, rachel_norfolk, rteijeiro, skwashd, davidhernandez, euphoric_mv: Make 'template' the default output option for hook_theme().

Issue #2277103 by tim.plunkett, pwolanin, Wim Leers, dawehner, hotpizzas: Switch Drupal::l() and LinkGenerator to expect a Url object.

Issue #2343651 by xjm, tim.plunkett, Wim Leers, dinarcon, dawehner: Remove most remaining l() calls.

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

Issue #2254153 by crowdcg, davidhernandez, joelpittet, mortendk, mdrummond, cilefen, LewisNyman: Move node classes out of preprocess and into templates.