A new and possibly the last firmware for the OSSC (not Pro) has been released. Changes in this version are:

• Added support for Lumacode
• Added HDMI VRR flag option
• Reduced sampling jitter on optimized modes
• Fixed sync drop issue with some sources like MSX
• Fixed auto input detection loop
• High/optimal sampling rate modes added for passthru

To use this firmware on the original OSSC device you will need to mod the device for it to be compatible, there is further information here. If you have already made the modifications, you can download v1.10 firmware here.