The Ethereum Fusaka hard fork has been activated on the final testnet and is expected to go live on the mainnet in December

Ethereum's next hard fork, Fusaka, was successfully activated on the Hoodi testnet on Tuesday, the final step after the Holesky and Sepolia testnets earlier this month. Fusaka plans to conduct at least 30 days of testing before the mainnet launch, with core developers initially setting the launch date for December 3. The upgrade will improve Ethereum's scalability, efficiency, and security, including increasing the block gas limit, expanding the "blob" capacity, and introducing new node security features. The upgrade contains multiple Ethereum Improvement Proposals (EIPs), among which EIP-7594 introduces PeerDAS technology, which enables validators to spot-check data fragments instead of full blobs, thus optimizing Layer 2 data availability. The Ethereum Foundation has also launched a four-week security audit contest with prizes of up to $2 million. The Fusaka hard fork comes about six months after Ethereum's last major upgrade, Pectra, and developers have started planning for the next upgrade, Glamsterdam.