VPN Protocol Registry v0.2.0

VPN Protocol Registry v0.2.0 is an evidence-led dataset of VPN-provider-developed tunnel protocols, branded variants, obfuscation transports, implementations, and adjacent technologies, current to 14 August 2026. It contains 25 structured records across 18 provider organizations: 20 core records and 5 separately classified adjacent technologies. This release adds Proton Protocols (ProTUN) as a Rust WireGuard implementation rather than a new wire protocol and updates Proton Stealth's platform and source evidence. The registry records technology class, deployment state, transparency, protocol-assessment status, platform support, documented purposes, post-quantum status, provenance, and review dates. It is not a provider or protocol ranking.