Change record status: 
Project: 
Introduced in branch: 
8.x
Description: 

In Drupal 7, when creating fields through Field UI, fields were prefixed by 'field_'.

This is now made configurable, defaulting to 'field_'. The config name is called 'field_prefix' and is located in 'core/modules/field_ui/config/field_ui.settings.yml'.
There is no UI to change this setting, this needs to be done manually or with drush.

Impacts: 
Site builders, administrators, editors
Updates Done (doc team, etc.)
Online documentation: 
Not done
Theming guide: 
Not done
Module developer documentation: 
Not done
Examples project: 
Not done
Coder Review: 
Not done
Coder Upgrade: 
Not done
Other: 
Other updates done