Ethereum Finalizes Fusaka Upgrade for December Launch

Ethereum Foundation has finalized December 3, 2025, for the Fusaka mainnet hard fork, introducing significant upgrades including PeerDAS technology, during a core developer call.

Fusaka’s enhancements aim to improve Ethereum’s scalability and efficiency, impacting Layer 2 ecosystems and DeFi projects, with widespread industry and institutional anticipation.

Major Features of Fusaka and Their Impact

Ethereum’s Fusaka upgrade is scheduled for December 3, following the successful final testnet deployment. The upgrade introduces PeerDAS technology, designed to provide validators with a more efficient way to access and handle data. The hard fork also proposes increasing the block gas limit significantly to 150 million units, alongside implementing numerous Ethereum Improvement Proposals.

The key changes due to Fusaka include significant scalability improvements through PeerDAS technology and an expanded block gas limit. These enhancements are anticipated to increase Ethereum’s network efficiency, benefiting Layer 2 solutions and enhancing overall ecosystem performance.

Market reactions have been largely positive. Ethereum’s core contributors, including Tim Beiko, noted the importance of preparing for compatibility updates. According to Vitalik Buterin, PeerDAS will make Ethereum more efficient for Layer 2 solutions. Arthur Hayes expressed optimism for the upgrade’s positive impact on Layer 2 adoption.

Ethereum’s Scalability Leap: Community and Market Dynamics

Did you know? PeerDAS technology was initially included in the Pectra upgrade but delayed due to required extensive testing, showcasing the Ethereum Foundation’s commitment to ensuring enhanced data access features.

According to CoinMarketCap, Ethereum’s current price is $3,784.29, with a market cap of $456.76 billion and dominance of 12.60%. In the past 24 hours, trading volume reached $41.23 billion, reflecting a 3.24% price decrease. Over 90 days, prices increased by 8.88%, illustrating market volatility.

Coincu research suggests Fusaka could bolster Ethereum’s infrastructure, aligning with future regulatory standards and expanding DeFi capabilities. The meaningful gas limit increase and data throughput expansion point towards long-term scalability and broader adoption impacts, supported by active community involvement.