Transmit 5.9.0 May 2026

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.

Beyond just supporting these keys, version 5.9.0 introduced the ability to generate FIDO2 security keys from within Transmit when an authentication device is plugged in. Transmit 5.9.0

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

Before 5.9.0, users often had to rely on standard password or private key files. By adding support for physical hardware tokens and certificates, Panic brought Transmit in line with modern security standards used by platforms like GitHub and AWS. It transitioned the app from a simple file mover to a tool capable of handling high-security infrastructure. Comparison with Recent Versions It transitioned the app from a simple file