UnetStack 7 Released - A New Generation of Underwater Networking
We are excited to announce the release of UnetStack 7, the next generation of the software-defined framework that powers underwater communication networks, from research testbeds to Subnero’s smart modems in the field. Developed as part of the Unet project at the Acoustic Research Laboratory (ARL), National University of Singapore, together with Subnero, UnetStack 7 carries forward everything the framework is known for: an agent-based network stack, a built-in simulator, and one codebase that runs the same from desktop simulation to deployment at sea.
A Brand New unetstack.net
Alongside the release, unetstack.net has been rebuilt from the ground up. The new site walks through what UnetStack is, its architecture, and its editions, and offers the UnetStack 7 community edition as a free download for teaching and research use.
Visit the new unetstack.net →
Download the community edition →
The New UnetStack Handbook
The Underwater Networks Handbook, the definitive guide to designing, simulating, and deploying underwater networks with UnetStack, has been rewritten for UnetStack 7 and moved to a new home.
Updated Whitepaper: Unlocking Underwater Connectivity
Our whitepaper, “Unlocking Underwater Connectivity: Exploring the UnetStack Framework for Subsea Communications and Networking”, has been revised to reflect UnetStack 7 and the ecosystem around it. The September 2026 revision covers who UnetStack serves and how, the simulation ecosystem spanning UnetSim, hardware-in-the-loop testing with the Virtual Acoustic Ocean, and UnetCloud, and the hardware path from UnetCube to Subnero’s smart modems, along with the UnetStack architecture and editions.
Download the whitepaper, PDF →
Whether you are simulating your first underwater network or building a modem of your own, there has never been a better time to dive in.
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