Ethereum's Usage Drop Post-Fusaka Upgrade Raises Concerns

Ethereum's Usage Drop Post-Fusaka Upgrade Raises Concerns

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Following its Fusaka upgrade on December 3, 2025, which aimed to enhance data availability and reduce layer-2 rollup costs by expanding blob targets, Ethereum has experienced an unexpected drop in network usage. Despite adjusting blob targets from 6 to 14 per block, with a maximum of 21, the network's performance suggests the upgrade may not have effectively addressed the intended problems.

Ethereum activated the Fusaka upgrade on Dec. 3, 2025, raising the network's data availability capacity through Blob Parameter Overrides that incrementally expanded blob targets and maximums. Two subsequent adjustments raised the target from 6 blobs per block to 10, then to 14, with a maximum ceiling of 21. The goal was to reduce layer-2 rollup […]