As of August 1, 2016, Sony is removing Ustream functionality from PlayStation 4. Players will no longer be able to stream their gameplay to Ustream nor watch the service from the “Live from PlayStation” section on PS4, the PlayStation App, or the PlayStation Vita. Ustream was originally the default destination for PS4 streaming when the system launched in 2013.
Remaining services YouTube, Twitch, and dailymotion will still be available.
Is the loss of Ustream a problem for you? How often do you use the service? Let me know in the comments below.
Source: PlayStation notice