@Federico Fissore
I complied the new files and was wondering which BIN files should I upgrade.
I assume these files are the same as 1.3
openwrt-ar71xx-generic-yun-16M-kernel.bin
openwrt-ar71xx-generic-linino-u-boot.bin
This might need to be updated to YUN
openwrt-ar71xx-generic-yun-16M-rootfs-squashfs.bin
and this would be the general file for the update
openwrt-ar71xx-generic-yun-16M-squashfs-sysupgrade.bin
I would assume i should choose the sysupgrade.bin file. But for advance users to do the rootfs.bin file