Proton VPN Ends Old OpenVPN Support: What Users Need to Know

Proton VPN is phasing out legacy OpenVPN configuration files, requiring users to update their setups before February 28, 2026. This change ensures stronger encryption and better overall security for VPN users. While the official Proton VPN apps continue to work without interruption, manual setups on routers, Linux systems, or third-party clients must switch to updated configs or move to WireGuard to avoid losing access.

Why Proton VPN Is Retiring Old Configurations

The retirement of older OpenVPN files is driven by the need for modern encryption standards. Legacy files used CBC mode, which lacks efficiency and certain security features compared to newer methods. Proton VPN’s move to AES-256-GCM provides built-in data integrity, parallel processing support, and faster performance on mobile devices. The update is part of a broader effort to enhance both security and usability for all VPN users.

What Users Must Do Before February 28

Users relying on OpenVPN configuration files downloaded before September 2023 must take immediate action. They can either:

• Download the new OpenVPN configuration files from Proton VPN

• Switch to WireGuard, Proton’s preferred modern VPN protocol

Failure to update will result in loss of connectivity for manual setups. Users on official apps are unaffected, as the apps already use updated encryption standards automatically.

Enhanced Privacy Features with the Update

The new configuration files also include TLS-Crypt, which encrypts the VPN control channel and packet headers. This prevents third parties from identifying VPN traffic, offering stronger protection against network monitoring, firewalls, and censorship. The addition of AES-256-GCM and TLS-Crypt marks a major improvement in privacy and performance for Proton VPN users.

Transitioning to WireGuard

Proton VPN encourages users to consider WireGuard as a long-term solution. Known for its speed, lightweight design, and robust security, WireGuard is faster and more efficient than OpenVPN, particularly on mobile devices. Users switching now can avoid future disruptions and benefit from lower battery usage, smoother connections, and modern encryption protocols.

Takeaway: Update Now to Stay Connected

Proton VPN’s retirement of legacy OpenVPN files underscores the importance of keeping VPN configurations current. Users with manual setups must act before February 28, 2026, or risk losing access. Updating ensures faster, safer connections with improved encryption, privacy, and overall performance. Moving to WireGuard is an opportunity to future-proof your VPN setup while maintaining the high security standards Proton VPN promises.