By catch on
Change record status: 
Published (View all published change records)
Project: 
Drupal core
Introduced in branch: 
11.1.x
Introduced in version: 
11.1.0
Issue links: 
https://www.drupal.org/node/2972622
Description: 

A new Workspaces UI module has been added which enables the routes and toolbar integration of the Workspace module. This is to allow for alternative user interface implementations in core or contrib.

The majority of supporting code remains in the Workspaces module for now to minimize disruption for any modules that might integrate with routes or forms etc.

Sites already using Workspaces will have Workspaces Ui module enabled in an update.

Impacts: 
Site builders, administrators, editors
Site templates, recipes and distribution developers