The streaming platform Mixer, formerly known as Beam before its acquisition by Microsoft, will be shutting down on July 22 of this year. Microsoft cited difficulties and shortcomings in “scaling their community” as their reasoning behind this. 
Content on Mixer was already temporary, but now it’s going offline for good. The good news is that they have a well-documented public API for anyone interested in archiving any streams: https://dev.mixer.com/guides/core/introduction.
Mixer had a number of exclusive streamers, all of who were invited to Facebook Gaming. These exclusive streamers include the likes of Tyler “Ninja” Blevins and Michael “Shroud” Grzesiek, who’d been on the platform for nearly a year. Whether or not they choose to follow this exclusivity deal with Facebook Gaming, they are all now at risk of losing their stream recordings!
Archive Team is leading a project called #mixdown, in hopes of saving whatever they can. You can expect to hear more on that or any other “stream rescue” projects in the coming days so stay tuned!