Cardano Activates van Rossem Hard Fork: Key Upgrade Lays Groundwork for Future Scalability
Vexoda Newsroom
Cardano has activated its van Rossem hard fork to reduce smart contract execution costs and prepare the network for Ouroboros Leios, a major scalability upgrade expected later this year.
On July 20th, 2026, Cardano successfully activated its van Rossem hard fork. This upgrade marks an important milestone as it transitions the mainnet from Protocol Version 10 to Version 11 in epoch 644, reducing smart contract execution costs and setting the stage for Ouroboros Leios, a significant scalability improvement expected later this year.
The van Rossem hard fork includes several key enhancements such as Plutus improvements and cost model optimizations. These changes aim to make Cardano more efficient in executing complex transactions while maintaining security standards. The upgrade is also notable because it represents the first governance-driven hard fork in Cardano’s history, shifting control from Input Output (IOG) to a community-based approach.
Background on Cardano's development process shows that previous upgrades were coordinated by IOG. However, this new model of decentralized decision-making could signal a shift towards more participatory and transparent blockchain governance. The van Rossem upgrade is part of the broader Dijkstra era hard fork series, which will introduce Ouroboros Leios to enhance transaction throughput without compromising security.
The market reaction was largely positive following the activation. Traders noted that while there were no immediate price movements in major cryptocurrencies like BTC and ETH, Cardano (ADA) saw a slight increase of 1.81%. This suggests traders are optimistic about the upgrade’s potential benefits for smart contract applications on the network.
The importance of this hard fork cannot be overstated, as it addresses one of the key challenges faced by blockchain networks: scalability while maintaining security and efficiency. By reducing costs and improving transaction execution times, Cardano aims to attract more developers and enterprises looking to build decentralized applications (dApps) without high operational expenses.
Traders should keep an eye on how Ouroboros Leios progresses as it is expected to significantly enhance the network’s capabilities. Additionally, the ongoing governance model shift may impact community engagement and development efforts in the coming months. Investors are encouraged to stay informed about these developments through official Cardano channels and community forums.
Source: Cointelegraph. Summarized and rewritten by the Vexoda Newsroom. This is market news, not financial advice.