Ethereum Co-Founder Buterin Celebrates the Fusaka Upgrade

Ethereum has successfully rolled out its Fusaka upgrade, aimed at enhancing the network's transaction processing capabilities without compromising security and decentralization, as per official network documents. Vitalik Buterin, one of Ethereum's co-founders, applauded the efforts of the developers behind this transformation.

Key Takeaways

The Fusaka upgrade is designed to enhance Ethereum's transaction processing capacity while ensuring security and decentralization.
Vitalik Buterin congratulated the Ethereum developers for their hard work on this upgrade.
The upgrade introduces PeerDAS technology, which improves data verification without needing full downloads.
Ethereum continues to dominate the smart contract blockchain space, processing up to 1.8 million transactions daily.
The upgrade is a significant step towards Ethereum's long-anticipated sharding solution for scaling the network efficiently.

Ethereum co-founder Buterin praises Fusaka upgrade - 1

“Congratulations to the Ethereum researchers and core developers who dedicated years of hard work to make this happen,” the 31-year-old entrepreneur expressed on X late Wednesday.

PeerDAS in Fusaka is significant because it literally is sharding.

Ethereum is coming to consensus on blocks without requiring any single node to see more than a tiny fraction of the data. And this is robust to 51% attacks – it's client-side probabilistic verification, not… pic.twitter.com/OK81xBteER — vitalik.eth (@VitalikButerin) December 3, 2025

Enhancing Network Capacity While Ensuring Security

The Fusaka upgrade was activated on the final testnet, Hoodi, in October. Central to this upgrade is EIP-7594: PeerDAS (Peer Data Availability Sampling), which enables Ethereum nodes to verify the completeness of block data without the need for extensive data downloads. The aim is to enhance network capacity while ensuring existing security and decentralization standards are upheld.

Ethereum, recognized as the leading smart contract blockchain by the total value locked, currently manages over $73 billion in decentralized finance (DeFi) applications. According to Etherscan, a blockchain analytics platform, the network processes between 1.3 million and 1.8 million transactions each day.

The Fusaka upgrade is a vital component of Ethereum's ongoing development plan focused on scaling solutions, particularly through sharding. This method divides the network into smaller segments, enabling nodes to process smaller batches of transactions securely, which significantly boosts throughput.

Developers have hailed this upgrade as a major technical leap for Ethereum, enhancing the network's ability to manage rising transaction volumes while maintaining the decentralized nature of its validator network.

“Sharding has been a dream for Ethereum since 2015… and data availability sampling since 2017,” Buterin mentioned in a GitHub post. “And now we have it.”

Price Movement

Following the launch of the upgrade, Ethereum's price surged past $3,000. As of the last update, the cryptocurrency had risen approximately 5% and was trading around $3,162.