Change record status: 
Project: 
Introduced in branch: 
8.4.x
Introduced in version: 
8.4.1
Description: 

The process plugin 'd6_field_link' is deprecated in favor of general purpose 'field_link' process plugin. Switch to using 'field_link' instead. This only effects D6 link migrations. There wasn't anything for D7 previously.

Previously:

process:
    field_link:
      plugin: d6_field_link
      source: field_link

Now:

process:
    field_link:
      plugin: field_link
      source: field_link
Impacts: 
Module developers