The latest spec, including the DSD aspects, is available on the web. I wonder if the imminent release date implies anything about the MQA launch date?

Streaming: Roon, NUC, QNAP869 NAS
2ch system: dCS Vivaldi, Audionet Stern, Audionet Heisenberg, Magico Q1
Retro system: 101/104/105, Red Rose Spirit