What is going on with Drupal Packagist? I was using 

  "repositories": {
   "drupal": {
       "type": "composer",
       "url": "https://packagist.drupal-composer.org/"
   }
  },


in my composer.json file, but now it started saying that it can't load it and it is deprecated so go to https://www.drupal.org/node/2822344 instead. However, the info on there suggests changing it to point to https://packages.drupal.org/7 but this also doesn't seem to exist. 

Can anyone shed some light?
https://packages.drupal.org/7 is the correct url, its just that drupal.org does not server any content under this url. Composer will call https://packages.drupal.org/7/packages.json