Issue #2459971 by Gábor Hojtsy: The langcode key on configuration files is not explicit in configuration schema

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

Issue #2401191 by jhedstrom, a_thakur, nlisgo, mohrerao: Activity Tracker shows 'Last updated' status as '45 years 1 week ago'

Issue #2451665 by dawehner: Don't rebuild the route on ModuleInstaller::install() (30% installer speedup)

Issue #2342045 by dawehner, Gábor Hojtsy, larowlan, joshtaylor: Standard views base fields need to use same rendering as Field UI fields, for formatting, access checking, and translation consistency

Issue #2433599 by Wim Leers: Ensure every (non-views) pager automatically associates a matching cache context

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 #2357199 by andypost, naiduharish: Consider CommentManagerInterface::addDefaultField() as deprecated and remove in favour of CommentTestTrait

Issue #2394883 by Gábor Hojtsy, plach, jhodgdon: Language setup for entity and field based rendering in views is independent, confusing UI, lacking test coverage

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 #2294157 by tim.plunkett, dawehner: Switch getOptions() and getRouteParameters() within LocalActionInterface and LocalTaskInterface to use RouteMatch

Issue #2385217 by rpayanm, hussainweb, areke: Clean-up tracker module test members - ensure property definition and use of camelCase naming convention

Issue #2395395 by alexpott, effulgentsia, Gábor Hojtsy: TestBase lacks a config method to be used consistently in tests

Issue #2349553 by dawehner, pfrenssen, damiankloip: Store entity field information in the views data

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

Issue #2324055 by dawehner, cilefen, znerol: Split up the module manager into runtime information and extension information

Issue #2322439 by subhojit777, akashjain132, znerol, jaimekristene, japo32, ThomWilhelm: Titles in a user's activity tab displays as just text and not a link

Issue #2267453 by alexpott, dawehner, damiankloip: Fixed Views plugins do not store additional dependencies.

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

Issue #2068331 by roderik, slashrsm, pcambra, Sharique, piyuesh23, vijaycs85 | plach: Convert comment SQL queries to the Entity Query API.

Issue #140363 by synth3tk, makemineatriple, realityloop, yoroy, YesCT, Niklas Fiekas, Schnitzel, corbacho | Jao: In user profiles, "Track" tab should be renamed "Activity".

Issue #2149197 by penyaskito, mikey_p, vijaycs85, herom: Replace format_interval with \Drupal::service('date')->formatInterval().

Issue #597236 by Berdir, catch, msonnabaum, Xano, Wim Leers, jhedstrom, amateescu, corvus_ch, swentel, moshe weitzman, Gábor Hojtsy, riccardoR, killes@www.drop.org, et al: Add entity caching to core.