The new firmware version is 1.5 for the AP80 Pro and 2.3 for the AP80
The official changelog for both firmware states the same:
Update Content: 1. Add MQA support.
You can download the firmware for these players at the following links:
This update comes as Hidizs will start to sell their DH80/DH80S DAC and Amp which can render MQA files.
The AP80/AP80 Pro is the first MQA DAP from Hidizs, joining the Hiby products of family, which also use the same Operating System, Hiby OS.