For several months, Ethereum has no longer moved slowly: it has sprinted. After the blobs of Dencun, the promises of Pectra, now Fusaka comes to shake up the table. And the timing is not trivial. In an increasingly competitive blockchain ecosystem, where Solana, Celestia or zkSync are advancing their pawns, Ethereum no longer has the luxury of slowness. Stay number one or suffer silent relegation? Fusaka, scheduled for December 3, could well provide a clear answer.
In brief
- Fusaka will be activated on December 3 after validated testing on three separate testnets.
- PeerDAS will allow validators to sample data faster and at lower cost.
- The gas limit will increase from 30 to 150 million, boosting network processing power.
- Two stages of doubling the blobs are planned, on December 9 and January 7.
PeerDAS: Ethereum’s secret weapon to tame layers 2
Engineers have been waiting for it since February, the testnets approved it in October, and Vitalik Buterin speaks of it as a revolution. PeerDAS (EIP-7594), the central element of the Fusaka update, will transform the way Ethereum manages its layer 2 data.
Concretely, PeerDAS introduces a more efficient data sampling mechanism, allowing validators to read only a fraction of the blob data temporarily stored on the main layer. Result: a lighter network, almost zero costs, and a speed reminiscent of the forgotten promises of web3.
During the last call All Core DevsAlex Stokes, lead developer, said that “the people I've talked to about it in the community are very excited… It's a really big thing.”
Initially planned for the Pectra upgrade, PeerDAS was postponed in order to avoid false starts. Fusaka will therefore benefit from several months of audits and tests on the Holesky, Sepolia and Hoodi testnets. A cautious, but necessary strategy: PeerDAS is now seen as the keystone of Ethereum's scalability.
Scalability, security and growth: what Fusaka is really changing for blockchain
Fusaka is not limited to PeerDAS. These are a dozen proposals (EIP) voted on to take Ethereum to the next level. Among them, one in particular risks making noise: the increase in the gas limit from 30 to 150 million per block. This measure will significantly expand the network's processing capacity, while also paving the way for future increases in the number of blobs.
Just after December 3, two other technical meetings were set: December 9 then January 7, where the number of blobs authorized per block will double in stages. All while guaranteeing complete backward compatibility of the network.
Pressure is also mounting on the markets. With ETH at $3,837 at the time of writing, traders are wavering between caution and excitement. On Myriad, the forecasts are 61% for a crossing of 4,500 dollars, compared to 39% for a fall below 3,100. The Fusaka effect? Maybe. The previous Pectra saw ETH jump 29%.
What to remember in figures and facts
- Key date: Fusaka will be deployed on the Ethereum mainnet on December 3, 2025;
- Flagship mechanism: PeerDAS will validate layer 2 data by sampling only a small portion of the blobs;
- Blob boost: Two extensions of the number of blobs are planned: December 9 and January 7;
- Gas Limit x5: The increase to 150 million units of gas marks a historic leap for the chain;
- ETH Price: Currently at $3,837, with moderate near-term bullish expectations.
When you look closely, Fusaka is not a simple chapter, it is a strategic turning point. With Pectra before him, he forms a diptych that could well rewrite the destiny of Ethereum. By strengthening scalability, streamlining access to layers 2, and maintaining its technological edge, the original blockchain is getting a makeover. The future will tell if this will be enough to protect it from Kodak syndrome in the web3 era.
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