Issue #2049159 by amateescu, Crell: Create a ControllerBase class to stop the boilerplate code madness.
Issue #2058435 by David_Rothstein: Fixed Drupal 8 lost support for the 'tel' protocol in URL filtering functions.
Issue #2026089 by Manuel Garcia: Change the documentation page link in content_translation() module.
Issue #2031529 by Wim Leers, oadaeh: Fixed JavaScript error when submitting a form that has a text_format() selector set to a text format without associated text editor.
Issue #1815886 follow-up by slashrsm: Upgrade path for Drupal core cannot manage files larger than 4 GB
Issue #1839130 by rballou, nod_, droplet: Refactor modules/views_ui()/js/views-admin.js.
Issue #2003260 by ebeyrent, DmitryDrozdik, kgoel: Replace drupal_container() with Drupal::service() in the breakpoint module.
Issue #2008970 by markie, StephaneQ, adamcowboy | thedavidmeister: Replace theme() with drupal_render() in aggregator module.
Issue #1933426 follow-up by dawehner: Fixed documentation around drupal_add_js -> drupal_add_library change.
Issue #2057247 by alexpott: Fixed On really quick testbots LocaleUpdateCronTest can fail.
Issue #2009574 by e2tha_e, adamcowboy, Samvel, jenlampton: Replace theme() with drupal_render() in forum module.
Issue #2058257 by effulgentsia: Fix ConfigFieldItemInterface's method signatures to typehint interfaces instead of classes.
Issue #2010982 by somepal, andypost, pplantinga | Samvel: Replace theme() with drupal_render() in system module for system_status().
Issue #1970900 by jhodgdon: Update standards doc on plugin annotations; add @defgroup annotation.
Issue #2056845 by StephaneQ | tstoeckler: Fixed Stale documentation in drupal_bootstrap() regarding DRUPAL_ROOT.
Issue #1905018 by Wim Leers, effulgentsia: Improve method names or return values of CKEditorPluginManager::getEnabledPlugins() and getButtonsPlugins().
Issue #2019071 by tsphethean: Fixed EntityListController::buildRow() should return secure label.
Issue #2020979 by dawehner, bojanz: Fixed Bulk action form no longer allows actions to be selected.
Issue #1939086 by chrisjlee, joelpittet, tim.plunkett: Convert theme_dropbutton_wrapper() to Twig.
Issue #1862390 by oriol_e9g, billk2, ACF, LinL: Coding standards - trailing comments in taxonomy.admin.inc