Change record status: 
Project: 
Introduced in branch: 
8.0.x
Introduced in version: 
8.0.0-beta15
Description: 

The the functions language_negotiation_url_prefixes() and language_negotiation_url_domains() are deprecated and replaced with equivalent functionality provided by the language negotiation service. Code can be easily changed as follows:

BEFORE
language_negotiation_url_prefixes()
language_negotiation_url_domains()

AFTER
\Drupal::config('language.negotiation')->get('url.prefixes');
\Drupal::config('language.negotiation')->get('url.domains');

Impacts: 
Module developers