Issue #3252386 by alexpott, longwave, duadua, mondrake, mstrelan, andypost, Spokje, VladimirAus, catch, effulgentsia, Berdir, xjm, bircher, joachim, larowlan: Use PHP attributes instead of doctrine annotations

Issue #2916376 by rlmumford, Sweetchuck, tim.plunkett: The @ContextDefinition annotation always kills the label and the description

Issue #3002206 by jibran, longwave, truls1502, alexpott, NickWilde: Update the stable version of drupal/coder to ˆ8.3.1

Issue #3016420 by tim.plunkett, EclipseGc: Allow context definition annotations to specify constraints

Issue #3014949 by tim.plunkett: Deprecate 'context' on Block and Condition plugin annotations in favor of 'context_definitions'

Issue #2787871 by alexpott, yogeshmpawar, Insasse, Prashant.c, catch, hass: Properly deprecate getUserName() and use getAccountName() instead

Issue #2935255 by Jo Fitzgerald, kim.pepper, voleger, alexpott, martin107, jibran, catch: Remove all usages of drupal_get_message and drupal_set_message in core lib

Issue #2935256 by Jo Fitzgerald, voleger, kim.pepper, ibustos, Yogesh Pawar, catch, jibran: Remove all usages of drupal_get_message and drupal_set_message in modules

Issue #2776975 by joelpittet, dawehner, tim.plunkett, xjm, pfrenssen: March 3, 2017: Convert core to array syntax coding standards for Drupal 8.3.x RC phase

Issue #2665992 by alexpott, klausi, heykarthikwithu, xjm, tstoeckler: @file is not required for classes, interfaces and traits

Issue #2635238 by dsnopek, tim.plunkett: Contexts not mapped in time to use them in BlockInterface::access()

Issue #2484645 by giancarlosotelo, Arla: Assigning context mapping: allow empty selection for optional contexts

Issue #2377757 by EclipseGc, tim.plunkett, Frando, Berdir, japerry, dsnopek, Wim Leers, Bojhan: Expose Block Context mapping in the UI

Issue #2292889 by Berdir, tim.plunkett: Fixed ContextHandler does not expect ContextDefinitionInterface.

Issue #2277981 by tim.plunkett, EclipseGc, fago: Provide a service for handling context-aware plugins.