Named after the Dragon Kings of Chinese mythology who rule over the seas and control water and weather, Longwang represents this release’s ability to support increasingly complex network topologies. Just as the four Dragon Kings each govern their domain while working in harmony, Zenoh 1.9.x brings the power to craft distributed systems with unprecedented flexibility.
Key highlights of this release include:
- Regions Architecture: Arbitrary network topology hierarchies with custom gateway configuration, replacing the fixed router/peer/client model with flexible region trees.
- QUIC Stream Multiplexing: Independent QUIC streams per priority level to eliminate head-of-line blocking in mixed-priority traffic.
- QUIC Mixed Reliability: Combine reliable streams and best-effort datagrams over a single QUIC connection for optimal performance.
- Reliable UDP: Unsecure QUIC mode providing reliability and multiplexing without TLS overhead for trusted environments.
- Zenoh-Go: Official, idiomatic Go binding with full API coverage from day one.
- Zenoh-Pico Async Executor: Single-threaded task execution reducing resource usage while extending advanced features like advanced pub-sub, connectivity events, auto-reconnection, and peer-to-peer mode to single-threaded environments.
- Nuze 0.3.0: Zenoh message decoding and improved matching listener commands in the Nu-powered Zenoh CLI.
For more details, see the: https://zenoh.io/blog/2026-04-16-zenoh-longwang/
Release Date
Release Type
Minor release