Firmware updates are supposed to bring features, but they often bring baggage. For a long stretch, subsequent updates after 6.x introduced stability issues, proprietary protocol changes (the shift from ACK to "airSelect" and early versions of airMAX AC), and interface overhauls that engineers didn't ask for.

Be cautious of websites claiming to offer "licensed downloads" of firmware. Ubnt firmware is typically available for free from Ubiquiti's official website or through their device's built-in update mechanism. Avoid third-party sites that may bundle firmware with malware or require payment.