# Ethereum Fusaka Upgrade Set for December Mainnet Launch ▴ News

**Published:** 2025-09-19
**Categories:** News

---

The impending Fusaka hard fork represents a strategic architectural evolution for the Ethereum network, primarily targeting the optimization of its data availability layer. By scheduling the mainnet activation for December 3, with subsequent blob capacity enhancements, the core developers are systematically addressing the escalating demand for off-chain data storage. This initiative directly impacts the systemic efficiency of layer-2 solutions, providing a more robust and cost-effective substrate for their operations. The doubling of blob capacity, facilitated through multiple Blob-Parameter Only (BPO) forks, constructs a more expansive data pipeline, which is essential for managing the increasing transactional load from decentralized applications.

Furthermore, the Ethereum Foundation’s commitment of a $2 million audit program underscores a rigorous approach to system integrity, ensuring that this significant protocol modification maintains the network’s security posture. This phased deployment, preceded by comprehensive testnet rollouts, exemplifies a controlled and deliberate upgrade mechanism, minimizing potential disruptions while maximizing the long-term scaling trajectory of the ecosystem.

The Fusaka upgrade fundamentally enhances Ethereum’s data layer, significantly boosting layer-2 efficiency and reducing transaction costs, thereby reinforcing the network’s foundational capacity for institutional adoption.

- **Mainnet Activation Date** ▴ December 3

- **Blob Capacity Increase** ▴ More than doubles current capacity

- **Security Audit Funding** ▴ $2 million

Signal Acquired from ▴ <a href="https://cointelegraph.com/news/ethereum-fusaka-upgrade-moves-december-blob-capacity-doubling?utm_source=options.greeks.live&utm_medium=referral&utm_campaign=satellite" target="_blank" rel="nofollow">Cointelegraph</a> 

**Tags:** [Blob Capacity](https://options.greeks.live/area/blob-capacity/), [Testnets](https://options.greeks.live/area/testnets/), [Transaction Costs](https://options.greeks.live/area/transaction-costs/), [Layer 2](https://options.greeks.live/area/layer-2/), [Fusaka](https://options.greeks.live/area/fusaka/), [EIPs](https://options.greeks.live/area/eips/)	

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---

**Original URL:** https://options.greeks.live/news/ethereum-fusaka-upgrade-set-for-december-mainnet-launch/
