Ethereum Fusaka Testnet Launch Scheduled for October 2025

The Ethereum Fusaka upgrade will launch on the Hoodi testnet on October 28, 2025, with a mainnet activation set for December 3, 2025. Coordinated by Ethereum core developers, it impacts ETH and related Layer 2 tokens, with increased developer confidence.

Ethereum’s latest network upgrade, Fusaka, is set for a testnet launch on October 28, 2025, on the Hoodi network, with a mainnet activation planned for December 3, 2025.

Led by Ethereum core developers and coordinated by the All Core Devs Consensus (ACDC) group, this launch is critical for institutional and technical growth.

Upgrade Details and Implications

Ethereum’s Fusaka upgrade marks an essential milestone in its ongoing development, fostering scalability and institutional interest. The event outlines potential impacts on the ETH price and Layer 2 solutions like Arbitrum.

The Fusaka upgrade will launch on Hoodi, enhancing Ethereum’s network capabilities. Spearheaded by core developers, the initiative targets improved performance and security. Vitalik Buterin frequently emphasizes the importance of these enhancements for the Ethereum ecosystem.

“Ethereum developers will launch Fusaka on the Hoodi testnet October 28, 2025, finalizing mainnet readiness for December 3, 2025 activation.” Fusaka meeting minutes, Oct 16, 2025

This upgrade has significant implications for major Ethereum assets, including ETH and Layer 2 solutions like Arbitrum. Institutional investors monitor these advancements, reflecting sustaining interest in Ethereum’s potential impact on investment strategies.

Institutional ETH holdings have surged, indicating Ethereum’s appeal as a strategic asset. Public companies now hold substantial stakes, highlighting Ethereum’s growing footprint in financial ecosystems.

Despite macroeconomic challenges, Ethereum’s technical upgrades remain a key focus for the blockchain industry. Fusaka is set to advance Ethereum’s capabilities, supporting network expansion and future-proofing the platform against potential industry shifts.

Innovative advancements, such as Fusaka, can bolster Ethereum’s scalability and market trust, enhancing its technological competitiveness. Historical trends in Ethereum’s continuous upgrades reveal how protocol improvements fortify network stability and user experience.