The Ethereum Foundation (EF) has announced a key change for the upcoming Fusaka hard fork in December: the introduction of a per-transaction gas limit cap via EIP-7825.
Currently live on the Holesky and Sepolia testnets, this change will cap the gas used by a single transaction at 16.78 million. This addresses a vulnerability where one transaction could consume the entire 45 million block gas limit, potentially hindering parallel execution and exposing the network to Denial of Service (DoS) attacks.
According to EF researcher Toni Wahrstatter, this update is a crucial step toward implementing parallel execution on Ethereum, which will allow transactions to be processed simultaneously to achieve higher throughput and safer scaling.
The change is expected to have minimal impact on average users but is highly relevant for developers whose contracts or scripts involve batching. Wahrstatter advised developers to test their contracts on the Sepolia testnet to ensure compatibility with the new limit.
While developers prepare for the upgrade, the price of ETH continues to trade sideways, showing a 12% drop over the last month but a 48% gain over the past year.
October 2025, Cryptoniteuae
