The Valve Index, an upcoming VR headset, is set to release on 15 June, according to a Steam page that was temporarily up.
According to Steam Database, a trusted analyser, the headset will be released before Spring ends.
Included was a photo of the headset, and some stats on the things needed to run it:
The leak also revealed the looks of the headset, as well as the info needed to run it.
A hefty leak from Valve. More to follow as the other publications catch on, though the tweets below detail the fullest extent of what was revealed: