Ethereum's next major upgrade, codenamed "Fusaka," is scheduled to go live on December 3rd.

On October 31st, researchers from the Ethereum Foundation officially set a date for the mainnet hard fork (codenamed "Fusaka"). During the "All Core Developers" call on Thursday, the Ethereum Foundation researchers announced that Fusaka will go live on December 3rd. Developers have been targeting this date since at least mid-September. Fusaka went live on the Hoodi testnet earlier this week, marking the final step towards mainnet activation. Earlier this month, it was successfully deployed on the Holesky and Sepolia testnets. This backward-compatible Fusaka hard fork will implement around a dozen Ethereum Improvement Proposals to enhance the sustainability, security, and scalability of the base chain and its surrounding layer 2 ecosystem. Notably, Fusaka will introduce "Peer Data Availability Sampling" (PeerDAS), a technology to simplify validator access to data. PeerDAS was originally planned for a major Ethereum upgrade (Pectra in February) but was delayed for testing. Fusaka will also increase Ethereum's block gas limit from 30 million units to 150 million units, expecting to rapidly double the block capacity.