- Proton VPN's new Rust-based Proton Protocols is in beta on all major apps
- It replaces WireGuard-go for better stability, speed, post-quantum readiness
- It includes an Advanced Kill Switch and Linux Stealth support
Following up on recent teasers, Proton VPN has officially rolled out a massive under-the-hood update across its consumer apps. Powered by a new custom-built architecture dubbed Proton Protocols (known internally as ProTUN), the update is now live in beta across Windows, iOS, iPadOS, Android, and Linux GUI.