Ethereum’s Fusaka Upgrade Set for December 2025 Activation

Key Points:

  • Fusaka upgrade introduces advanced throughput and data availability enhancements for Ethereum.
  • Activates on December 3, 2025, at slot 13,164,544.
  • Immediate market reactions remain cautious yet optimistic.

The Ethereum Foundation has announced the Fusaka network upgrade, set to activate on the Ethereum mainnet at slot 13,164,544 on December 3, 2025, at 21:49:11 UTC.

This upgrade aims to boost Ethereum’s performance and user experience with enhanced data availability and optimized layers, potentially impacting market dynamics and Ethereum-based ecosystems.

Fusaka Upgrade to Enhance Ethereum’s Scalability and Data Handling

The Fusaka network upgrade by the Ethereum Foundation will roll out significant enhancements to the Ethereum mainnet, scheduled for activation on December 3, 2025, at slot 13,164,544. The Fusaka introduces the Blob-only fork and Peer Data Availability Sampling (PeerDAS), focusing on boosting throughput and data availability.

“With PeerDAS, the capacity for data handling will significantly increase,” expecting improved execution in both consensus layers. “Immediate effects” on Ethereum will enhance the scalability of its Layer 1 functionality, potentially impacting Layer 2 solutions.

Market reactions have been cautious, yet developers express optimism about Fusaka’s potential, particularly in boosting network capabilities. Prysm and Lodestar developers highlighted the cautious timeline, indicating a meticulous rollout strategy to ensure network integrity.

Ethereum Price Impact and Future Blockchain Prospects

Did you know? The Fusaka network upgrade follows past upgrades like Dencun that significantly enhanced Ethereum’s scalability, often leading to increased adoption among Layer 2 apps.

Ethereum (ETH) is currently priced at $3,338.50 with a market cap of $402.95 billion, according to CoinMarketCap. The cryptocurrency commands 11.89% market dominance. Trading volume over 24 hours was $35.17 billion, marking a significant drop of 50.22%. Recent price trends show a decrease of 0.23% over the last 24 hours and a more pronounced 12.04% over the past week.

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Ethereum(ETH), daily chart, screenshot on CoinMarketCap at 15:06 UTC on November 6, 2025. Source: CoinMarketCap

Analysis by Coincu Research indicates that Fusaka’s activation could herald new scaling solutions for Ethereum’s infrastructure, as past upgrades fostered increased data availability and reduced transaction fees. Notably, this could influence both regulatory frameworks and technological advancements within the blockchain ecosystem.

Source: https://coincu.com/ethereum/ethereum-fusaka-upgrade-december-2025/