supportedWireVersions top-level constant
The wire versions this build can speak; negotiate picks the highest one both sides share.
Version 2 (1.1.0) roots every session in a signed ephemeral X25519
agreement and carries user data only inside sessions. Version 1 is not
spoken any more: its sessions had no forward secrecy and let any holder of
the passphrase key write user data, so a 1.0 peer is reported as
PeerIncompatible rather than talked to insecurely.
Implementation
const List<int> supportedWireVersions = [2];