Ethereum’s Fusaka Upgrade Expands Data Capacity and Attracts Institutional ETH Buys

Ethereum completed the Fusaka upgrade, a major protocol update focused on data availability, layer‑2 scaling and client performance. Fusaka introduces PeerDAS — an erasure‑coding data‑availability system that lets nodes verify blocks without downloading full datasets, potentially boosting rollup data capacity by up to 8x. The upgrade also includes EIP‑7623 (higher block gas limit), R1 curve support, pre‑confirmations to improve mobile/dApp finality, and optimizations across Geth, Nethermind and Erigon. Extensive Holesky and Sepolia testnets showed stable performance under heavier loads. Fusaka activates automatically for users and is followed by planned Blob Parameter Only (BPO) increases to blob capacity on Dec 9 and Jan 7. Market reaction: ETH recovered from lows near $2,630 into a $2,850–$3,150 range and saw institutional buying — treasury firm BitMine added $150m in ETH aiming for a 5% treasury allocation. Analysts flag short‑term moving averages improving while RSI remains below 50. For traders, Fusaka is unlikely to reduce base fees immediately but should ease conditions for rollups, lower node‑operator storage costs, and support longer‑term scalability. Key trading levels: resistance around $3,650–$3,700 if the recovery continues; support at $2,630 and deeper near $2,400 if the range breaks. Primary keywords: Ethereum, Fusaka, ETH, PeerDAS, data availability, layer 2. Secondary keywords: EIP‑7623, rollups, blob scaling, Geth, Nethermind, Erigon, institutional buying.