Ethereum Fusaka Fork Goes Live on Hoodi Testnet

Ethereum has officially activated its Fusaka fork on the Hoodi testnet, marking a crucial milestone toward its planned mainnet rollout on December 3, 2025. This testnet phase is a key part of Ethereum’s roadmap to continuously improve the network’s scalability, performance, and security.

The Fusaka fork introduces several upgrades designed to prepare Ethereum for future demand while maintaining stability. Developers and node operators are already engaging with the testnet to identify bugs, test smart contracts, and ensure that the mainnet launch proceeds without issues.

What’s New in the Fusaka Fork?

The Fusaka upgrade brings a mix of technical advancements aimed at enhancing Ethereum’s infrastructure. Most notably:

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  Improved Scalability: Fusaka optimizes transaction throughput, making the network more efficient for decentralized apps and layer-2 solutions.
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  Security Upgrades: Strengthened consensus rules and validation layers aim to minimize vulnerabilities and protect user assets.
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  Smoother Developer Experience: Updates to the virtual machine (EVM) and tooling offer a more predictable environment for builders.

This fork is a continuation of Ethereum’s long-term development strategy, following earlier upgrades like Dencun. Fusaka lays the groundwork for more ambitious changes expected in 2026 and beyond.

Mainnet Launch: What to Expect

The December 3 launch date sets a clear timeline for validators, developers, and infrastructure providers to prepare. Between now and then, community feedback from the Hoodi testnet will be essential in ensuring a seamless upgrade.

Ethereum’s approach of rigorous testing followed by phased deployment demonstrates its commitment to decentralization without compromising network health.

As anticipation builds, the Fusaka fork stands as another important chapter in Ethereum’s ongoing evolution.