As of early 2026, the current stable version of Transmit is (released February 2026). While 5.9.0 focused on security protocols, later updates have added: SSH Agent Integration: Support for agents like Bitwarden.

Introduced support for SSH certificate client authentication , which is essential for enterprise environments using centralized identity management for server access. Why This Update Mattered

Added support for FIDO2 ECDSA-SK and Ed25519-SK key authentication. This allowed users to use physical security keys (like a YubiKey) for SSH connections directly within the app.