Please upgrade your Yún - latest is 1.5.3

Earlier I managed to get my old pair of Yun's upgraded to 1.6.2 which I think corresponds to GitHub - arduino/openwrt-yun-1505: Updated build system for OpenWrt - Yun family boards for the source so I am having a go at rebuilding it however the .config didn't seem to match the binaries I found earlier (generic board rather than Arduino Yun for a start) ... can anyone confirm the git repo I found is the latest ?

Is there anywhere else that we can find the configs for the arduino supplied binaries ?

Thx ...