TechFlow news, October 21 — According to the Ethereum Foundation, the upcoming Fusaka hard fork will introduce a per-transaction gas limit via EIP-7825, set at 2²⁴ (approximately 16.78 million gas). This change has already been deployed on the Holesky and Sepolia testnets and will be activated on mainnet with Fusaka.
Previously, a single transaction could consume an entire block's gas limit (around 45 million gas), posing potential DoS risks and hindering parallel execution. The new limit aims to improve block packing efficiency and pave the way for future parallel processing.
Most users are expected to be unaffected, but certain contracts and deployment scripts—especially transactions performing batch operations—may exceed the limit. Developers should simulate transactions on testnets and, if necessary, refactor batch operations into smaller, sequential transactions.
