Ethereum’s Fusaka Upgrade Speeds Up Network, Cuts Costs

Crypto News Blockchain

Written by Aaron S.,

Editor-In-Chief

Last Updated: December 04, 2025

Key Takeaways

Ethereum’s Fusaka upgrade went live on December 3, which added PeerDAS to boost data handling and reduce network strain;
PeerDAS splits large datasets into smaller parts, which helps nodes process data faster and use less bandwidth;
The update increases rollup data capacity up to eight times, cuts costs, and moves Ethereum closer to near-instant transactions.

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Ethereum’s Fusaka Upgrade Speeds Up Network, Cuts Costs

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Ethereum ETH $3,196.54 has introduced its second major system upgrade of the year, called Fusaka.

The update went live on December 3 at 9:49 PM UTC. Its main addition, Peer Data Availability Sampling (PeerDAS), is designed to help Ethereum and its secondary networks, known as Layer-2s, process much more information at once.

Instead of requiring each node to manage the whole dataset, PeerDAS divides the information into smaller pieces. Each node then handles only a portion of the data, which speeds up transactions and reduces bandwidth usage.

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According to the Ethereum Foundation, this change can increase data capacity for rollups and Layer-2 networks by up to eight times. More capacity means rollups can handle greater traffic at lower costs.

The Foundation explained that this setup also helps maintain Ethereum’s decentralized structure while making it more affordable for users.

The organization also noted that the Fusaka upgrade moves Ethereum closer to offering near-instant transactions.

In a post on X, the Ethereum Foundation explained what the upgrade means for users, developers, node operators, and enterprises. In simple terms, Fusaka enables the network to process information more quickly, manage data more efficiently, and deliver a smoother overall experience.

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