Ethereum Sets Sight on December 3 for Mainnet Upgrade Following Testnet Launch for Fusaka
The Ethereum network is gearing up for its next major overhaul, the Fusaka upgrade, scheduled for mainnet activation on December 3, 2022. This upgrade is expected to bring significant improvements in scalability, security, and efficiency.
One of the key features of Fusaka is the integration of Verkle Trees, which will optimize proof efficiency by reducing proof sizes and improving storage. This innovation is anticipated to streamline the network's operations, making it more efficient and less resource-intensive.
In terms of scalability, Fusaka aims to expand Ethereum's capabilities. The upgrade includes proposals for increasing the block gas limit from 30 million to 150 million units, a move that is expected to support higher transaction throughput. Developers also plan to double blob capacity within two weeks of Fusaka activation, thanks to the introduction of Blobs under EIP-4844. These temporary data containers, designed for rollups, are intended to lower costs and reduce permanent storage needs.
To ensure the upgrade's success, the Ethereum Foundation has launched a four-week security contest, hosted on the Sherlock testnet. Running from September 15 to October 13, this contest offers up to $2 million in rewards to identify any potential vulnerabilities before the Fusaka upgrade goes live on the mainnet.
The rollout will progress through test networks, with Holesky activation on October 1, Sepolia on October 14, and Hoodi on October 28. In preparation for the mainnet activation, developers have also planned a series of Blob Parameter Only forks, scheduled for December 17 and January 7, 2026.
Fusaka's primary objective is to expand Ethereum's scalability while maintaining security and decentralization. To this end, it introduces Peer Data Availability Sampling, allowing validators to check large datasets by sampling smaller sections from peers. Additionally, enhancements to the Ethereum Virtual Machine (EVM) performance will enable faster smart contract execution.
Looking further ahead, Ethereum's next planned overhaul is Glamsterdam, scheduled for 2026. This upgrade is expected to focus on scalability improvements, including the full EVM Object Format and faster block times.
As Ethereum continues to evolve, the Fusaka upgrade represents an important step towards a more efficient, secure, and scalable network. Stay tuned for more updates as we approach the mainnet activation on December 3.
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