Fusaka: What changes does the upcoming Ethereum hard fork bring?

Ethereum's next major upgrade, Fusaka, brings performance, decentralization, and usability improvements for a more robust Web3 future.

Ethereum's evolution continues to reach milestones that seek to strengthen its position as the most robust and efficient blockchain platform on the market. The network's next major upgrade, known as Fusaka, has generated great excitement in the community, as it promises to introduce revolutionary changes that will further boost performance, decentralization, and usability. 

But What exactly does Fusaka mean and why is it so important in Ethereum's journey toward a more robust ecosystem? The answer goes beyond simple technical improvements; it's a vision that seeks to prepare Ethereum for a future filled with challenges and opportunities in the world of blockchain technology.

Fusaka on the Ethereum roadmap: more than just an update

Since its inception, Ethereum has gone through several stages of development, each focused on addressing different limitations and enhancing its capabilities. Following the successful implementation of The Go in September 2022, and Spectra As of early May 2025, the Ethereum roadmap continues to advance with Fusaka. This upcoming upgrade not only follows Pectra, but represents a crucial step in the protocol's evolution, focused on improve infrastructure to make it more efficient and prepared for the massive growth expected in the coming years.

Fusaka, whose name is a nod to Osaka, a Japanese city renowned for its innovation and technology, symbolizes the vision of the future that Ethereum strives to convey. It's a set of changes designed to optimize key aspects of the protocol, maintaining the philosophy of a decentralized, secure, and usable system for everyone. The Ethereum community has learned that major upgrades involve not only technical improvements, but also a process of testing, fine-tuning, and consensus-building that reflects the collaborative spirit of the network.

What is Fusaka and what changes does it promise to bring?

To better understand the significance of Fusaka, it's necessary to delve into what exactly this update entails and how it will impact the network's day-to-day operations. Fusaka is being designed with a focus on making the Ethereum infrastructure more efficient and easier to use, making it easier for developers and users to take full advantage of its capabilities. Among the most notable changes is the incorporation of Ethereum Object Format (EOF), a new data format that simplifies and improves the structure of smart contracts. This will reduce errors and vulnerabilities that can arise in programming, facilitating the creation of more secure and reliable decentralized applications.

Another fundamental piece in Fusaka is PeerDAS, a protocol that seeks to improve data availability on the network, making vital information, such as which validators are active or what the latest block is, more accessible and verifiable with greater accuracy. PeerDAS will also allow Ethereum to securely increase its data capacity per block. Therefore, the implementation of these changes not only complements the technical improvements the network needs to remain competitive, but also strengthens confidence in security and transparency.

Fusaka also follows a philosophy Minimalist, focused on making significant changes without overloading the network with too many modifications at once. The idea is that these improvements can be tested and deployed in a controlled environment, ensuring that the update is stable and reliable.

The inclusion of additional proposals, such as EIP-7688, which allows smart contracts to query important network status information, is also being considering for future phases, ensuring continuous and adaptable evolution.

Why is Fusaka important for the future of Ethereum?

The importance of Fusaka lies in his ability to Boost the performance, scalability, security, and usability of the Ethereum protocol, three essential pillars for its long-term success. The update will increase transaction processing speeds and reduce associated costs, aspects that currently represent a challenge for mass adoption. With a more optimized infrastructure, decentralized applications will be able to offer faster and more reliable services, opening the door to new opportunities in sectors such as finance, gaming, and digital identity management.

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Fusaka will also strengthen the decentralization of the Ethereum ecosystem by facilitating the participation of a greater number of validators and fostering a network that is more resilient to attacks or failures. A more decentralized network is not only more secure but also more aligned with the core values ​​of blockchain, which value the distribution of power and user autonomy.

From a technical point of view, Fusaka is also expected to serve as a springboard for future improvements and even more ambitious updates, such as Arises y Verge, designed to further scale and optimize the network. 

The first phase of Fusaka's implementation, according to the development teams, is planned for late 2025, which means that in just a few months, the crypto community will be able to experience the transformation this update will bring, experiencing a much more powerful network, prepared for the challenges of an increasingly interconnected digital world.

When will Fusaka come into effect?

According to Ethereum developers, Fusaka is scheduled to go live in the second half of 2025, specifically in the last quarter of the year. However, it's important to note that Ethereum upgrades are often subject to delays, as the development process involves multiple phases of testing, validation, and community consensus. Despite this, the community is confident that the progress made so far will allow Fusaka to be implemented on schedule, cementing it as one of the most significant upgrades in Ethereum's recent history.

A decisive step towards modernizing Ethereum

In short, this next major upgrade represents much more than a simple technical improvement. Fusaka reflects Ethereum's future vision of being a network capable of offering faster, more secure, decentralized, and easier-to-use services. 

The implementation of improvements like EOF and PeerDAS has the potential to transform the user experience and security of decentralized applications and Layer 2, strengthening Ethereum's position as a leading platform in the global blockchain ecosystem. The community eagerly anticipates the coming months, knowing that each change adds another piece to the puzzle that will take Ethereum to its next stage of growth and maturity.

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