n0 bets 'dial keys, not IPs': Iroh 1.0 ships after 4 years, 200M endpoints in 30 days

On June 15, 2026, N0, Inc. shipped Iroh 1.0, the first stable release of its open-source Rust networking library. Iroh's claim is that applications should address devices by cryptographic key, not IP address: an endpoint generates an Ed25519 keypair, the public key becomes a stable EndpointID that survives network changes and doubles as the authentication and encryption anchor, and connections work from behind NAT through a mix of direct hole-punching and stateless relays.

The release capped more than four years of open development and 65 pre-release versions. The 1.0 line promises wire-protocol and API stability across languages and restores official Python, Node.js, Swift and Kotlin bindings that had been paused during earlier API churn. Under the hood iroh builds on IETF drafts for QUIC multipath and QUIC NAT traversal, supports local-first connections with no internet, and can compile to WebAssembly for browser use, with custom transports like Bluetooth Low Energy and Tor possible under the same key-based abstraction.

The adoption numbers make the bet concrete before the stable release: N0 reports more than 200 million endpoints created on its public relays in the 30 days before launch, with developers using iroh for video streaming, LLM training coordination, secure chat, file transfer and game networking. The announcement hit the top of Hacker News with 1,398 points and 462 comments, TechTimes covered it independently, and N0 positions hosted relays and support schedules as the commercial layer on top of the open-source library.