5.9.0 — Transmit

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

Released on November 2, 2022, stands out as a significant security-focused update for the macOS file transfer client. It modernized the app's authentication capabilities, making it much more "future-proof" for professional developers and IT administrators. Key Features of Transmit 5.9.0 Transmit 5.9.0

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. Key Features of Transmit 5

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. Resolving CPU spikes and improving stability for macOS

Resolving CPU spikes and improving stability for macOS Sequoia users. Transmit 5 Release Notes - Panic

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.