With the YouTube Data API upgrade an unlisted video appear on some YT RSS feeds

I have some YouTube RSS feeds on my reader and today I notice that an unlisted video called "https://youtube.com/devicesupport" appeared on my feeds.

Screenshots: http://i.imgur.com/wdfRMOd.png http://i.imgur.com/KJJRjzp.png

Here the video https://www.youtube.com/watch?v=UKY3scPIMd8

The url of the video's name explains about the YouTube Data API upgrade: "As we upgrade the YouTube Data API to bring more features, we’ll begin shutting down the old version on April 20, 2015. This will result in the current YouTube app not working on certain device models from 2012 and older." Link: https://youtube.com/devicesupport

Confusing stuff.