Greate news - a version of Z-Uno software (we call it bootloader) with the new Z-Wave Security S2 encryption is now available. To benefit from it you need to have an S2 capable controller in the network.

[About S2] Z-Wave Security S2 is currently one of the most secure common known IoT protocols! It uses ECDH with a PIN code to share the network keys over the air securely. Three security levels ensures that even compromising some device one can still not get control onthe full network.

More info on https://forum.z-wave.me/viewtopic.php?f=3427&t=26222&p=73103#p73103