Ethereum News Today: Ethereum’s November 2025 Fusaka Fork Boosts Scalability via 150M Gas Limit, Spam Defense

Ethereum’s upcoming Fusaka hard fork, set for early November 2025, represents a strategic step in the blockchain’s ongoing efforts to enhance scalability and security through technical optimizations. This upgrade diverges from recent user-facing improvements like the May 2025 Pectra fork, which introduced features such as account abstraction. Instead, Fusaka prioritizes backend adjustments, bundling 11 Ethereum Improvement Proposals (EIPs) to refine core parameters and bolster network resilience. Key changes include raising the block gas limit to 150 million units, enabling more transactions per block, and implementing EIP-7825 to fortify nodes against spam attacks. These updates aim to reduce transaction fees during high demand while maintaining smart contract functionality [1].

The decision to exclude EIP-7907—initially proposed to double the contract code size limit—reflects a calculated move to avoid delays in the testing timeline. Developers opted to defer this change to a future fork, ensuring timely deployment before the Devconnect developer conference in Buenos Aires (November 17–22, 2025). Community stakeholders, including Ethereum protocol lead Nixo, have emphasized the importance of adhering to the schedule to align the upgrade with the conference and maintain momentum in the development cycle [1].

Testing for Fusaka has already begun with a July 2025 devnet launch, followed by public testnets in September and October 2025. The final EIP bundle was confirmed on August 1, 2025, providing client teams two months to integrate the updates before the mainnet activation. If no critical issues arise, the upgrade will proceed at a pre-announced block height, ensuring synchronized node upgrades. This approach mirrors Ethereum’s accelerated six-month upgrade cadence, a pattern established after the Pectra fork [1].

While Fusaka lacks user-facing innovations, its impact on Ethereum’s competitive landscape is significant. By expanding transaction capacity and reinforcing security measures, the fork supports the network’s ability to attract decentralized finance (DeFi) applications, gaming platforms, and other use cases. Analysts highlight that maintaining low fees, speed, and security is critical for Ethereum to retain its position against faster Layer 2 solutions and alternative blockchains [1].

The focus on technical stability over disruptive features underscores Ethereum’s iterative development strategy. For example, the increased block gas limit comes with trade-offs, such as slower block propagation and higher storage demands, but developers consider these manageable within the current infrastructure. The removal of EIP-7907 and rigorous testing phases also reflect a cautious balance between progress and protocol stability [1].

As the November 2025 activation date nears, the Ethereum community remains focused on minimizing risks. The emphasis on timely deployment and robust testing highlights the project’s commitment to refining the protocol to meet growing demand while preserving decentralization and security principles. Fusaka’s implementation marks another milestone in Ethereum’s evolution, ensuring the network remains adaptable to future challenges.

Source: [1] [No code breaks, just more room: what to expect from Ethereum’s Fusaka hard fork] [https://crypto.news/no-code-breaks-just-more-room-what-to-expect-from-ethereums-fusaka-hard-fork/]