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Ethereum Developers Propose Major Gas Limit Increase Ahead of Fusaka Hard Fork

By ToTo BugelmanNewcomer0 rep· 4/25/2025

Ethereum core developers are actively testing a significant increase in the gas limit for the upcoming Fusaka hard fork, aiming to boost the limit from the current 36 million to 150 million. This ambitious proposal is part of ongoing efforts to enhance the scalability and efficiency of the Ethereum network.

 

Ethereum Average Gas Limit: Ycharts

 

Key Takeaways

  • Proposed gas limit increase to 150 million for the Fusaka hard fork.

  • Current gas limit is approximately 36 million, raised from 30 million in 2021.

  • Developers emphasize the need for thorough testing to identify potential bugs.

  • Fusaka is expected to go live in late 2025, following the Pectra upgrade in May 2023.

 

Background on Gas Limits

Gas limits are crucial in determining how much computational work can be done in a single transaction on the Ethereum network. The gas limit is set by validators and directly impacts transaction speed and costs. The current limit of around 36 million was established after a previous increase in August 2021, which saw the limit rise from 30 million.

 

The Proposal for Fusaka

The proposal to increase the gas limit to 150 million is encapsulated in Ethereum Improvement Proposal (EIP) 9678, introduced by Sophia Gold from the Ethereum Foundation. During a recent All Core Devs Execution (ACDE) meeting, Ethereum developer Tim Beiko highlighted the importance of this increase as a key feature of the Fusaka hard fork.

  • EIP 9678: Aims to raise the gas limit significantly to enhance layer 1 execution.

  • Testing Phase: Developers anticipate the need for extensive testing to address potential bugs that may arise at higher gas limits.

 

Importance of the Gas Limit Increase

The motivation behind this increase stems from a growing interest in scaling Ethereum's layer 1 execution capabilities. Developers believe that this enhancement can be achieved without introducing new features, thereby streamlining the process.

  • Client Developer Involvement: Execution layer developers will play a critical role in testing and fixing any issues that may surface during the increase in gas limits.

  • Coordination Among Clients: By establishing an EIP, developers aim to ensure that all client defaults are updated in time for the Fusaka launch.

 

Timeline for Upcoming Upgrades

The Ethereum network is on the brink of significant upgrades, with the Pectra hard fork scheduled to go live on the mainnet in May 2025. Following this, the Fusaka hard fork is projected to be implemented in late 2025. This timeline allows developers ample opportunity to refine the gas limit increase and address any challenges that arise during testing.

 

Tim Beiko

 

Sources

 

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Ethereum Developers Propose Major Gas Limit Increase Ahead of Fusaka Hard Fork | BlockzHub