This firmware updates have introduced new Lightning Link control protocol update preparing for the coming Master Clock product. There are also some bug fixes and we are expecting for a sound quality improvement on VEGA G2 as well. Please make sure you have updated both units to the last firmware version in order to use Lightning Link connection.
The 5.4 firmware for all other products will be release by first week of March. Our office in China will close till 26th Feb for Chinese Lunar New Year holiday.
AREIS G2 firmware release notice:
VEGA G2 firmware release notice: