Cardano prepara el Van Rossem hard fork: qué cambia para la red y para ADA

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As the Van Rossem hard fork approaches, the Cardano ecosystem is heading into one of its most technically significant upgrades in recent months. The change is not just a routine update: it affects node compatibility, smart contract features and potentially the way ADA is perceived in the broader crypto market.

Over the coming days, developers, stake pool operators and institutional users will be watching closely how the transition unfolds. The upgrade aims to modernise Cardano’s smart contract layer, strengthen its role as a neutral settlement infrastructure and set the stage for more complex on-chain applications, all while traders speculate on how ADA’s price might react once the fork is live.

Van Rossem hard fork: key dates and node requirements

On May 21, the Cardano network is scheduled to activate the Van Rossem hard fork, a protocol change that will render older node software incompatible with the new rules. This is a classic hard fork scenario: once the switch happens, only nodes updated in time will be able to validate blocks and remain part of the canonical chain.

To prepare for the transition, all network participants are required to upgrade their nodes to version 11.0.1. Nodes still running version 10.7.1 after the fork will no longer be able to interact properly with the mainnet, as the older release is not designed to handle the updated protocol logic and Plutus capabilities.

Before hitting the main network, the new code has already been put through its paces on Cardano’s testing infrastructure. On May 8, the hard fork logic was successfully deployed to the Preview test network, allowing developers and operators to verify that the upgrade behaves as expected in a controlled environment and to iron out any compatibility issues ahead of time.

Another milestone is set for May 16, when the governance vote on the new Plutus cost model is scheduled to conclude. This voting process is critical because the cost model defines how resources are priced for on-chain execution. Once the outcome is locked in, the countdown to the mainnet activation of the Van Rossem hard fork effectively begins.

What Plutus V3 brings to Cardano smart contracts

The Van Rossem hard fork is not only about low-level protocol changes; it also introduces a new iteration of Cardano’s smart contract platform. With the rollout of Plutus V3, a set of additional built-in functions and data types will become available to developers, broadening what can be done on-chain.

At the heart of this enhancement are several Cardano Improvement Proposals (CIPs) that define new primitives for the Plutus language. Many of these features have already been activated on the testnet since May 8, giving developers time to experiment with them before they reach the main network.

One of the most notable additions is CIP-109, which introduces modular exponentiation. This operation is a cornerstone of many advanced cryptographic schemes, and its availability as a built-in function simplifies the implementation of more sophisticated protocols within Cardano smart contracts, such as privacy tools or cross-chain bridges that rely on complex cryptography.

Another enhancement comes from CIP-132, adding the dropList built-in. While it may sound minor compared to cryptographic primitives, a function like dropList can streamline list manipulation in Plutus scripts, reducing boilerplate code and helping smart contracts run more efficiently by using native operations instead of custom implementations.

For developers working on advanced cryptographic or zero-knowledge systems, CIP-133 introduces multi-scalar multiplication over the BLS12-381 curve. This curve is widely used in modern cryptography, including aggregate signatures and some proof systems. Having this operation as a native primitive allows Cardano-based applications to explore more complex constructions without incurring prohibitive execution costs.

Data handling is also evolving through CIP-138, which defines a native array data type. Arrays give smart contract authors a more natural way to represent structured collections of values, enabling new patterns in contract logic and making some categories of applications – such as on-chain analytics tools or more intricate DeFi protocols – simpler to design.

Finally, CIP-153 introduces a native MaryEraValue type optimised for multi-asset transactions. Cardano supports multiple tokens natively at the ledger level, and this new type is designed to manage such assets more efficiently. The goal is to reduce overhead and complexity when handling transactions that involve several assets, improving both performance and clarity for developers.

All these primitives aim to standardise and unify the available built-in functions across the different Plutus versions. By smoothing out the differences between language iterations, the network reduces friction for developers who maintain or upgrade existing contracts while taking advantage of the new features.

Cardano’s positioning as a neutral settlement layer

Beyond the technicalities of the hard fork, the upgrade period has become an opportunity for Cardano’s leadership to reiterate the network’s broader mission. On May 12, Cardano Foundation CEO Frederik Gregaard emphasised Cardano’s role as a neutral global settlement infrastructure, especially relevant in a time when traditional banking systems are perceived as increasingly politicised.

From this perspective, Cardano is positioned as a resilient and transparent base layer that can host a wide spectrum of financial and commercial activity. The idea is to provide a stable, rule-based environment that is less exposed to the discretionary decisions that can affect conventional intermediaries, while still allowing room for regulation and compliance where necessary.

To support that vision, the ecosystem is working on integrating compliance logic directly at the token level. One of the initiatives often highlighted in this context is CIP-0113, which focuses on embedding regulatory controls into token behaviour, making it possible to build institutional-grade vaults or products that can respect jurisdictional requirements without sacrificing the benefits of on-chain settlement.

This approach is intended to move Cardano beyond purely speculative use cases and towards more practical, real-economy applications. Whether it is trade finance, tokenised assets or institutional custody, the goal is to allow market participants to leverage blockchain transparency and programmability without ignoring the regulatory frameworks that govern their activities.

In practice, this positioning means that upgrades like the Van Rossem hard fork are not just seen as code deployments, but as steps towards a broader strategy: making Cardano an attractive choice for both open-source developers and more conservative institutions looking for a programmable yet compliance-aware platform.

Market reaction: ADA price, derivatives and investor sentiment

While the technical community focuses on code and governance, the market is trying to anticipate how the hard fork might influence ADA’s price. Recently, ADA has been trading around 0.27 US dollars, marking a daily decline of roughly four percent at the time of reporting, yet showing an increase of about eight percent over the course of the week.

From a trend perspective, ADA is currently sitting about 23 percent below its 200-day moving average, which stands near 0.35 dollars. This gap underscores the ongoing sideways movement and indicates that, despite short-term rallies, the asset has not yet reclaimed the longer-term trend line that many traders watch as a sign of sustained momentum.

At the same time, derivatives markets tell a slightly different story. The open interest in ADA-based derivatives has climbed to roughly 590 million dollars, suggesting that traders are positioning for stronger moves ahead. Higher open interest can reflect rising speculative activity, often around key events such as protocol upgrades, when the perceived chance of volatility increases.

However, the direction of that potential move is far from clear. Sentiment appears mixed, with some market participants betting that a smooth hard fork could act as a catalyst for renewed interest in ADA, while others remain cautious, pointing to the token’s performance over the past year, in which it trades about two thirds below its high from the previous year.

In this context, the period leading up to May 21 keeps the spotlight firmly on the technical execution. A seamless upgrade, with broad node participation and no major disruptions, could help rebuild confidence and support narratives around Cardano’s long-term viability. Conversely, serious issues or delays could weigh further on sentiment, adding pressure to a price that has already struggled to regain ground over longer time frames.

Against this backdrop, analysis pieces and commentary targeting Cardano investors have highlighted what they see as an urgent need to reassess individual strategies around ADA. These discussions typically revolve around the balance between the project’s steady technical progress and the market’s more hesitant pricing, leaving investors to decide whether current levels represent an opportunity or a sign to remain on the sidelines.

For now, ADA remains in a kind of holding pattern, with many observers waiting for concrete signals from both the successful completion of the Van Rossem hard fork and the market’s response in the days and weeks that follow.

As Cardano moves through this upgrade cycle, the network combines a demanding technical transition, a clear ambition to serve as a neutral settlement layer and a market environment that is cautiously optimistic but far from euphoric. The Van Rossem hard fork, with its Plutus V3 enhancements, new cryptographic primitives and focus on multi-asset efficiency, stands as a critical test of how well Cardano can evolve without disrupting its existing ecosystem, and how convincingly it can translate technical improvements into renewed confidence from developers, institutions and ADA holders alike.