Ethereum News Today: Ethereum Activates Fusaka Upgrade Nov 5–12 2025 Boosting Scalability and Node Efficiency

Ethereum’s Fusaka hard fork, the next major upgrade in its 2025 roadmap, is set to activate on the mainnet in early November 2025, specifically Nov. 5–12, as defined by a block height rather than a specific calendar date. This event comes just six months after the Pectra upgrade, which introduced visible changes such as account abstraction and higher staking limits. In contrast, Fusaka focuses on infrastructure-level improvements, bundling 11 Ethereum Improvement Proposals (EIPs) aimed at enhancing scalability, node resilience, and efficiency, without altering existing smart contracts or user-facing features [1].

The Fusaka upgrade is part of Ethereum’s increasingly aggressive six-month cadence of execution-layer hard forks, reflecting a growing emphasis on core protocol performance. A devnet, Devnet-3, was launched on July 23, 2025, to allow developers to test and refine the changes, followed by public Ethereum testnets in September and October 2025. These phases were designed to stress-test the system and identify bugs before the mainnet deployment. An EIP freeze was implemented on August 1, 2025, locking the scope of the upgrade and allowing for six weeks of interoperability checks and final preparations [1].

Among the key proposals included in Fusaka is EIP-7594 (PeerDAS), a major scalability improvement that introduces peer data availability sampling. This reduces the data load on individual nodes by allowing them to verify a fraction of the total data, which is especially beneficial for rollups. Other notable EIPs include EIP-7825, which prevents malicious transaction spam, and EIP-7935, which increases the gas limit to support more transactions per block. These changes are expected to lead to smoother network performance, particularly during periods of high demand [1].

Despite its importance, Fusaka is being marketed as a “behind-the-scenes” update. Developers have opted to defer heavier proposals, such as EIP-7907 and the EVM Object Format, to future upgrades in order to keep this fork focused and testable. The timing of the upgrade aligns with the Devconnect conference in Buenos Aires, scheduled for November 17–22, 2025, underscoring the Ethereum community’s commitment to meeting development milestones while preparing for the next round of upgrades [1].

The Ethereum 2025 roadmap reflects a disciplined and ambitious approach to network evolution. Developers are working under tight timelines, as emphasized by protocol-support member Nixo, who warned that the team must maintain a “tight” schedule to deliver the upgrade in time for Devconnect. Looking ahead, attention is already shifting toward the 2026 Glamsterdam fork, which could introduce a block time reduction to six seconds—effectively doubling Ethereum’s throughput—along with further gas limit adjustments and enhancements to ETH staking [1].

For developers, Fusaka represents a significant but subtle shift. Higher gas ceilings, improved node efficiency, and reduced spam vulnerabilities will all contribute to a more stable and scalable environment without requiring major overhauls to existing tools or applications. For end users, the benefits may be less obvious but still tangible—lower volatility in gas fees, improved transaction throughput, and a more resilient network during peak usage periods [1].

Ethereum’s approach to iterative development, characterized by measured improvements and a focus on long-term infrastructure, continues to define its evolution. Fusaka is a step in that direction, laying the groundwork for more ambitious changes while maintaining the stability and compatibility that have long been central to the platform’s success. As the network moves toward more frequent and impactful upgrades, the Ethereum ecosystem appears to be balancing innovation with operational reliability [1].

Source: [1] Ethereum’s Fusaka upgrade set for November: What you need to know (https://coinmarketcap.com/community/articles/689a00b5d80b084b3637fb78/)