2016-03-31, 22:14
If this addon uses (YouTube API v2.0 - Watch History), then it has been officially deprecated as of March 4, 2014.
YouTube API v2.0 - Watch History
https://developers.google.com/youtube/2....ch_history
Implementation and Migration: Playlists
https://developers.google.com/youtube/v3.../playlists
Sample API Requests
https://developers.google.com/youtube/v3...e_requests
YouTube API v2.0 - Watch History
https://developers.google.com/youtube/2....ch_history
Implementation and Migration: Playlists
https://developers.google.com/youtube/v3.../playlists
Sample API Requests
https://developers.google.com/youtube/v3...e_requests