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Ethereum’s next major protocol upgrade, codenamed Fusaka, is tentatively scheduled for a November launch, marking the network’s continued march toward greater efficiency and scalability.
Hot on its heels is Glamsterdam, the subsequent hard fork, which is expected to finalize its feature set by August 1.
This acceleration in upgrade cadence reflects growing momentum within the Ethereum community to push updates more frequently—ensuring the protocol evolves in step with user needs and broader market demands.
Fusaka will arrive roughly six months after the last major hard fork, Pectra, which brought key advancements like account abstraction, increased validator staking limits, and optimizations for layer-2 scaling.
According to community initiative ethPandaOps, the next developer network (devnet) for Fusaka is launching this Wednesday, and will include 11 Ethereum Improvement Proposals (EIPs).
Among the proposals is EIP-7825, designed to bolster the network’s defense against malicious activity while simultaneously enhancing its scalability.
Developers are also considering a gas limit increase to 150 million, aimed at improving throughput.
However, EIP-7907—which would have doubled the contract code size limit and introduced gas metering—has been temporarily shelved to help streamline testing efforts.
Meanwhile, Ethereum core contributor Tim Beiko confirmed in April that the highly debated EVM Object Format (EOF) will not be included in the Fusaka release.
Ethereum’s Fusaka Testnets Coming in Fall, Glamsterdam Planning Ramps Up
Ethereum’s much-anticipated Fusaka hard fork is entering its final stages of development, with two public testnets scheduled for rollout in September and October, and a mainnet launch expected in early November.
Despite the momentum, there are internal concerns about hitting the timeline. In a post on X (formerly Twitter), Ethereum protocol support member Nixo flagged the urgency:
“If we want to ship by Devconnect, we need our timeline tight. We’ll go over that in detail. Can we get client releases in the ~next month & a half?”
Devconnect, Ethereum’s annual developer gathering, is set to take place Nov. 17–22 in Buenos Aires, Argentina, making it a key milestone target for the Fusaka release.
Planning Underway for Glamsterdam
While Fusaka nears its final test phases, Ethereum’s core developers are already laying the groundwork for the Glamsterdam hard fork—the next major upgrade on the roadmap.
The final list of features to be included in Glamsterdam will be announced during the upcoming AllCoreDevs – Execution meeting on August 1.
Fresh Proposals on the Table
Ethereum core researcher Barnabé Monnot has proposed a major change: reducing the block time from 12 seconds to 6 seconds. The goal? Deliver faster transaction finality and smoother performance for DeFi applications.
If accepted, the block time reduction will be implemented as part of the Glamsterdam upgrade, expected sometime in 2026.
Meanwhile, Ethereum validators are backing another key change—raising the gas limit to 45 million, a move that could significantly lower transaction costs and increase network throughput.
On Sunday, Ethereum co-founder Vitalik Buterin confirmed on X:
“Almost exactly 50% of stake is voting to increase the L1 gas limit to 45m.”
As Fusaka moves toward the finish line and Glamsterdam takes shape, Ethereum is accelerating its evolution—with major scalability and usability upgrades in sight.
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