Please choose the correct version to upgrade for the device to follow local country regulations
It is NOT suggested to upgrade firmware which is not for your region. 
Release Date: 20160615
Firmware Version: V1.0.0.8(3856)
Release Note:
1.This version is compliant with FCC standard.
2.Fix the problem that the radio won't be enabled after disable first SSID.
3.Fix the problem that AP won't reboot after VLAN parameters was modified.
Note: If you need to install APs with controller M3, please upgrade firmware of M3 to version V1.0.0.6(4575) or later firstly.
If not, the controller M3 can't discover APs.