By dawehner on
Change record status: 
Published (View all published change records)
Project: 
Drupal core
Introduced in branch: 
8.0.x
Introduced in version: 
8.0.0-beta15
Issue links: 
https://www.drupal.org/node/2506533
Description: 

The content negotiation class was removed and integrated into the negotationMiddleware directly.
If you replaced the content negotiation service you should now replace the entire middleware (http_middleware.negotiation) and do the logic needed there.

Impacts: 
Module developers