Ethereum Sets November Date for Fusaka Upgrade

• Ethereum plans to launch the Fusaka upgrade in early November to improve scalability and security.

• Two public testnets are set for September and October before the mainnet release.

• Developers are also preparing for the Glamsterdam upgrade and a possible gas limit increase.

Ethereum core developers have scheduled the Fusaka hard fork for early November 2025. The upgrade aims to improve network efficiency, scalability, and resilience. It follows the Pectra hard fork, which rolled out six months earlier with features like account abstraction and validator limit increases.

Fusaka will include 11 Ethereum Improvement Proposals (EIPs), among them EIP-7825, designed to boost the network’s defenses against malicious attacks while enhancing scalability. Ethereum-focused dev group ethPandaOps confirmed that the next developer testnet will launch this Wednesday.

However, EIP-7907, originally intended to double contract code size limits and introduce gas metering, has been removed to accelerate testing. Additionally, the much-anticipated EVM Object Format upgrade will not be included in Fusaka.

Two public testnets are scheduled for September and October. Ethereum core developers are working on a tight timeline to ship the upgrade before Devconnect, which takes place from Nov. 17 to 22 in Buenos Aires. Protocol support member Nixo emphasized the urgency in an X post, calling for client releases within the next six weeks.

Gas Limit Proposal Gains Traction

Alongside Fusaka, Ethereum developers are also considering raising the base gas limit to 150 million. This change would aim to increase throughput and reduce network congestion. While still under discussion, the move reflects a broader push for more scalable Layer 1 operations.

Meanwhile, validators support a more immediate proposal to raise the network’s gas limit to 45 million. According to Ethereum co-founder Vitalik Buterin, around 50% of staked ETH has already voted to favor this adjustment. If implemented, it could help lower transaction fees and improve processing speeds for decentralized applications.

Glamsterdam Hard Fork Set for 2026

Ethereum’s next major upgrade, Glamsterdam, is expected in 2026. Core developers will finalize which upgrades to include during the AllCoreDevs Execution meeting on August 1. One proposal under review is reducing block time from 12 seconds to six seconds. According to developer Barnabé Monnot, this would significantly enhance the performance of DeFi applications and improve user experience.

The community continues to push for more frequent and impactful protocol upgrades. With Fusaka in motion and Glamsterdam on the horizon, Ethereum’s roadmap reflects a growing focus on scalability, developer efficiency, and long-term network performance.