IOTA v1.9.2 Hard Fork: The Dawn of Starfish

By NOWNodes | NOWNodes | 22 Oct 2025


The IOTA ecosystem has entered a new phase. With the release of Mainnet v1.9.2, the network takes its first concrete step into the Starfish era — a long-awaited evolution that brings sharding, improved consensus, and the foundation for unprecedented scalability.

At NOWNodes, we’ve already upgraded all our IOTA nodes to support this latest version, ensuring developers and businesses can seamlessly access the next generation of IOTA’s infrastructure from day one.

The Beginning of Sharded Consensus

At the heart of this update lies the start of the sharded Starfish implementation — a concept that redefines how data and transactions are processed within the IOTA network.

Traditional blockchains rely on every node processing every transaction, which eventually limits scalability. IOTA’s Starfish model changes this paradigm by introducing shards — independent sections of the network that can handle transactions in parallel, while still remaining synchronized through a shared consensus layer.

In essence, the network learns to think and act in parallel.
That means faster confirmation times, higher throughput, and a structure capable of supporting the kind of massive, distributed applications IOTA has always envisioned — from IoT microtransactions to data-sharing systems connecting entire smart cities.

Under the Hood: Subtle but Powerful Improvements

Beyond the sharding groundwork, version 1.9.2 includes a number of crucial refinements designed to improve performance, reliability, and the developer experience.

A new Starfish consensus update allows partial transaction data decoding from individual shards, setting the stage for smoother and more efficient data synchronization across the network.

The update also introduces new consensus parameters such as consensus_max_acknowledgments_per_block, improving how the protocol manages block acknowledgments and transaction confirmations.

Meanwhile, several developer tools received major fixes — including improved IOTA Move command-line behavior and better handling of compiled bytecode, ensuring that development and deployment on IOTA remain seamless and accessible.

Why It Matters

The IOTA network has always been about pushing the boundaries of what distributed systems can achieve. With v1.9.2, it moves closer than ever to realizing a future where scalability, speed, and decentralization coexist without compromise.

This release lays the groundwork for a modular, sharded architecture, one capable of powering the complex ecosystems of tomorrow — machine-to-machine economies, autonomous IoT networks, and real-time data layers that span industries.

For developers, this means a more capable network.
For enterprises, it means confidence that IOTA can scale with their ambitions.
And for infrastructure providers like NOWNodes, it’s a chance to help the entire ecosystem move forward with reliable, up-to-date access to the most advanced version of IOTA yet.


NOWNodes Is Ready for the Future

Our IOTA infrastructure is now fully upgraded to v1.9.2, giving every project connected through NOWNodes the advantage of the newest Starfish-ready protocol.

Whether you’re building dApps, integrating IoT solutions, or exploring the possibilities of decentralized data exchange — you can count on NOWNodes to provide fast, stable, and always up-to-date access to the IOTA Mainnet.

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