I tried with this solution in a raspberry pi2 and it didn't work for me (as discussed with pitti), but adding the new strange iface name to /etc/network/interfaces worked, with what used to be eth0.
On the other hand, the symlinking worked to have recognized a new wireless usb interface, which right after the upgrade that deleted my interfaces had the new weird interface format (ex enxb827ebf5f71c), and then became wlan0.
I tried with this solution in a raspberry pi2 and it didn't work for me (as discussed with pitti), but adding the new strange iface name to /etc/network/ interfaces worked, with what used to be eth0.
On the other hand, the symlinking worked to have recognized a new wireless usb interface, which right after the upgrade that deleted my interfaces had the new weird interface format (ex enxb827ebf5f71c), and then became wlan0.