Cardano activated the Van Rossem hard fork on July 18, 2026, at 21:44:51 UTC, moving the network to Protocol Version 11 without any reported downtime. The upgrade lowers the cost of running Plutus smart contracts, a change developers have been waiting for.
What the hard fork does
The Van Rossem hard fork is an intra-era change inside Cardano’s Conway ledger era. It doesn’t replace the network’s governance structure — instead, it fine-tunes the economics of smart contract execution. Plutus scripts, which power decentralized applications on Cardano, will now cost less to run. The exact fee reduction depends on the script’s complexity, but the change is expected to make the platform more attractive for developers building DeFi, NFTs, and other on-chain applications.
No governance overhaul
Because Van Rossem is an intra-era upgrade, it leaves Cardano’s existing governance framework intact. The network’s on-chain voting and treasury systems remain unchanged. This was a deliberate choice by the development team: the focus was on cost reduction, not structural reform. The upgrade was approved through Cardano’s governance process and rolled out without a hitch.
Technical details
The transition to Protocol Version 11 happened at the epoch boundary. Node operators had already updated their software, so the network saw no interruption. Cardano’s core developers described the fork as a “smooth” event. The change is backward-compatible — existing smart contracts continue to work, but at a lower cost.
The lower fees could spur a wave of new dApp deployments. Developers who previously found Plutus execution costs prohibitive may now reconsider. Cardano’s ecosystem has been growing steadily, and this upgrade removes one of the remaining friction points.
What’s next for Cardano? The community is already discussing the next set of improvements. With Van Rossem live, attention shifts to further scalability upgrades and the continued rollout of the Voltaire era’s governance features. Developers can start testing the new cost model immediately.
