Ethereum reaches a crucial milestone with the "Fusaka" update entering public testing phase. The goal? Enhancing network speed, reducing costs, and optimizing modularity while paving the way for future parallel execution. This significant advancement may strengthen Ethereum's position amidst competitors like Solana and Avalanche.
The introduction of a gas consumption cap per transaction is part of a broader strategy. Its purpose is to optimize network performance. It limits the processing power that a single operation can monopolize. This way, Ethereum ensures a more equitable distribution of resources among different transactions within the same block. This approach also promotes predictability for validators and dApp developers. They can now better anticipate network behavior under heavy load.
Alongside this cap, Fusaka increases the global gas limit per block from 45 million to 60 million units. This 33% increase improves network throughput without compromising security. It also doesn’t require hardware inflation for nodes. The combination of these two parameters creates an environment where more transactions can be processed simultaneously, preventing a single operation from blocking the entire system.
The technical roadmap indicates that these modifications form the necessary foundation for parallel execution, a feature the community has been anticipating for years. Gabriel Trintinalia, protocol engineer at Besu, confirms that testing in pre-production environments helps identify edge cases and fine-tune parameters before the critical deployment. Development teams thus have a valuable observation window to measure the real impact of these changes on latency and average transaction costs.
The Fusaka upgrade could mark a historic turning point for Ethereum, strengthening its technological lead over competitors. If the transition goes smoothly, the market could quickly reevaluate ETH’s price upward, as happened after “The Merge” or “Dencun.” To position yourself before this potential movement, Bitget allows you to buy and secure your ETH in minutes, with reduced fees.
Beyond the gas cap, Fusaka incorporates PeerDAS (Peer Data Availability Sampling). This innovation radically transforms the management of blob data for Layer 2. This system allows Ethereum nodes to store only small random portions of blob data rather than the entire dataset. This probabilistic approach drastically reduces the hardware requirements for running a full node while maintaining an equivalent level of security through distributed sampling.
For Layer 2 solutions like Arbitrum, Optimism, or Base, PeerDAS represents a considerable scalability lever. Rollups will be able to publish more data on the main chain at lower cost, which will mechanically translate into lower fees for end users. Early estimates suggest that transaction costs on L2 could decrease by 30 to 50% in the months following Fusaka’s deployment.
This evolution continues the trajectory set by the Dencun update in March 2024, which introduced blobs and significantly reduced fees on Layer 2. Fusaka takes this logic even further by optimizing how this data is distributed and verified across the network. The combination of PeerDAS with the increased gas limit per block creates a multiplier effect for the overall throughput of the Ethereum system and its ecosystem of scaling solutions.
Fusaka doesn’t mark the end of Ethereum’s optimization roadmap. The next major update, codenamed Glamsterdam, will focus on the execution layer and introduce EIP-7828. This is the first concrete step toward truly parallel transaction processing. This evolution will allow the network to process multiple operations simultaneously that don’t interact with the same states, potentially multiplying throughput by a significant factor.
The gas cap per transaction established by Fusaka constitutes precisely the technical foundation necessary to enable this parallel execution. By ensuring that no transaction can monopolize all of a block’s resources, the network can now more easily orchestrate the concurrent execution of multiple operations. Development teams for execution clients like Geth, Besu, and Nethermind are already working on implementations that will leverage this architecture.
Testing phases on Hoodi, scheduled for October 28, will provide the final performance data before mainnet deployment in December. These tests will validate that validators, dApp developers, and the entire infrastructure can handle the transition without friction. The Ethereum Foundation recommends that projects using gas-intensive transactions verify their compatibility with the new limits now to avoid surprises when the hard fork occurs.
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