Ethereum’s Fusaka upgrade set for November: What you need to know

Key Points

1. The Fusaka hard fork is part of Ethereum's 2025 roadmap, emphasizing scalability updates and node health, with a mainnet activation set for November 5, 2025.

2. The upgrade includes 11 infrastructure-level EIPs, such as EIP-7918 (Blob Base Fee Bound), aimed at refining scalability and improving efficiency without disrupting DApps.

3. Development involves a devnet launched in July 2025, followed by public testnets in September and October to stress-test changes before mainnet activation.

4. Fusaka's timeline is aggressive but deliberate, reflecting Ethereum's new semiannual upgrade rhythm, with a focus on incremental improvements.

5. Future upgrades, like the 2026 Glamsterdam fork, may include bold changes such as reducing block time to six seconds and further gas-limit adjustments.