Ethereum has entered the final testnet phase of its Fusaka upgrade, the final step before the mainnet launch, scheduled for December 3rd. This upgrade will introduce a gas cap of approximately 16.78 million per transaction, improving block efficiency, reducing denial of service (DoS) risks, and laying the foundation for parallel execution in future upgrades like the Glamsterdam upgrade.

This mechanism, already activated on the Holesky and Sepolia testnets, aims to prevent a single transaction from consuming an entire block’s worth of gas. Previously, a single transaction could consume up to the block’s gas limit of approximately 45 million, potentially congesting the network and limiting scalability.

The Fusaka upgrade (EIP-7825) also increases the Ethereum block gas limit to 60 million and introduces the PeerDAS (Peer Data Availability Sampling) mechanism, allowing nodes to store only part of the Layer 2 data, thereby reducing hardware requirements and supporting higher throughput.

The next phase of the Fusaka upgrade will be deployed on the Hoodi testnet on October 28, and the mainnet deployment is expected to be completed in December 2025. The subsequent Glamsterdam upgrade (EIP-7928) will focus on the execution layer.

(Cointelegraph)