In last build for 4300 wifi5ghz LED doesnt work. At /sys/devices/pci0000:00/0000:00:00.0 a leds folder missing. And of course in /sys/class/leds device missing too.
Sure you can switch back...
My assumption was that this error is also on ar71xx.
I will take a look into this soon. Peace.
After the source-only flag got removed
official snapshot builds are appearing now as well: