On July 18, Cardano activated its van Rossem hard fork, advancing the mainnet to Protocol Version 11. This upgrade is notable not just for its technical improvements but also because it represents Cardano's first hard fork ratified through its onchain governance system, a key moment for the network's decentralized decision-making process.

Governance Milestone and Network Efficiency

The van Rossem hard fork was approved after a governance vote involving delegated representatives (DReps), stake pool operators (SPOs), and the Constitutional Committee. Specifically, Cardano governance records show 77.63% DRep support and 52.7% SPO support, surpassing the required thresholds. This hard fork's approval through onchain governance marks a departure from previous coordination models led by founding development groups, entrusting the community with greater control over protocol upgrades.

Technically, the upgrade introduces enhancements to Plutus, Cardano's smart contract platform, by optimizing cost models and improving performance. These changes aim to reduce the cost of executing certain smart contract operations, which could make decentralized applications on Cardano more economically viable and competitive with other platforms.

Preparing for Higher Throughput and Future Upgrades

The van Rossem upgrade is an intra-era hard fork, meaning Cardano remains within the Conway era while updating protocol components. Importantly, it lays the groundwork for the upcoming Dijkstra era hard fork, which will bring the Ouroboros Leios consensus protocol. Leios aims to increase transaction throughput without compromising Cardano's security model, addressing one of the network's critical scalability challenges.

Development on Leios is actively progressing. The consensus team has stabilized the Leios testnet, released prototype builds, and refined block certification processes. These improvements are essential steps toward higher network capacity, which can support more users and complex applications.

Testing for van Rossem included phased rollouts on the Preview and Preprod networks earlier in the year, ensuring tooling compatibility and stability before mainnet activation. This rigorous approach reduces risks of disruption and demonstrates Cardano's methodical upgrade process.

This move to onchain governance ratification combined with technical enhancements signals Cardano's strategic push to balance decentralization, security, and scalability a key trifecta for long-term blockchain adoption.

Material is informational and not financial advice.