Ethereum is gearing up for its Fusaka upgrade launching in December 2025, which could be the biggest improvement to the network since the Pectra update back in May. The upgrade focuses heavily on scalability through something called Peer Data Availability Sampling (PeerDAS) and a massive increase to the block gas limit.
PeerDAS lets validators verify data across the network without downloading entire datasets, which cuts down resource demands while keeping everything secure. The block gas limit is jumping from 30 million to 150 million units, basically quintupling capacity and doubling the throughput for blob data that layer-2 solutions rely on.
Developers finalized the December mainnet launch during the All Core Developers call on October 30th after successfully testing on Hoodi, Holesky, and Sepolia testnets throughout October. The upgrade includes 12 new Ethereum Improvement Proposals designed to boost efficiency, speed, and security.
But here’s the thing: despite this major upgrade announcement, ETH price action has been pretty ugly. The token’s trading around $3,862, down 1.72% over 24 hours after dipping as low as $3,600 recently. Exchange netflow data shows tokens flowing into exchanges over the past two days, which usually means selling pressure is building.
ETH fell below its short-term moving averages, and technical indicators suggest the uptrend might be exhausted. If selling continues, it could test $3,800 again or even drop toward $3,601.
Conclusion
Ethereum’s Fusaka upgrade launching December 2025 brings PeerDAS and a 150 million gas limit increase for enhanced scalability, though ETH trades at $3,842 amid bearish pressure and exchange inflows.
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