Ethereum is in the final testnet phase of its Fusaka upgrade, setting a per-transaction gas cap of around 16.78 million units to enhance block efficiency and prepare for parallel execution. This change aims to prevent single transactions from monopolizing an entire block and improve network scalability. The upgrade is expected to roll out on the mainnet on Dec. 3.

The Fusaka upgrade introduces PeerDAS, enabling Ethereum nodes to store random portions of layer 2 data instead of the entire dataset, enhancing network security and scalability. The upgrade raises the default block gas limit to 60 million and sets a per-transaction gas cap of 16.77 million units under EIP-7825. The next upgrade, Glamsterdam, will focus on parallel transaction processing.

The introduction of limited transaction gas caps follows the Fusaka upgrade on the Sepolia testnet, increasing the full block gas limit from 45 million to 60 million. The next phase is scheduled for rollout on the Hoodi testnet on Oct. 28, with mainnet deployment anticipated in December 2025. Testnet upgrades are crucial for building confidence and fine-tuning parameters before the mainnet fork.

Read more at Cointelegraph: Ethereum’s Fusaka Upgrade Adds Per-Transaction Gas Limit Cap