Didn't update the firmware yet.
I did notice that 3D AUTO mode doesn't work as I expected. When starting a SBS 3D movie, I have to go into the projector menu and manually choose 3D and SBS mode. The source is a laptop PC with HDMI output, connected to Marantz 7012, which connects to the projector. The laptop is set to external screen only, playing a downloaded movie in VLC. After manually selecting 3D SBS in the projector, the DLP-Link goggles sync up and the 3D works great. At the same time, the Atmos detection works flawlessly in my Marantz 7012 in a 7.2.4 (4 speakers in ceiling) configuration. It would be a lot smoother if the projector would just do the 3D detection in AUTO.