Ethereum's Fusaka Upgrade Set for December 2025 to Boost Scalability and Cut Costs

Ethereum is gearing up for a significant network upgrade called Fusaka, with the mainnet launch tentatively scheduled for December 3, 2025. This upgrade was thoroughly tested on multiple testnets including Holesky, Sepolia, and most recently the Hoodi testnet, where the final test was completed on October 28, 2025.

The Fusaka upgrade introduces an innovative feature called PeerDAS, which allows validators to verify segments of data instead of the whole, effectively reducing bandwidth usage and overall costs. This development is set to significantly improve network scalability and cost-efficiency, benefiting both developers building on Ethereum and end-users.

The earliest possible mainnet launch date is November 28, 2025, respecting the minimum 30-day waiting period after the final test, but the targeted rollout is December 3. The Ethereum community is already looking ahead, as developers prepare for another future hard fork named Glamsterdam.

For those interested in expanding their crypto portfolio or entering the market with ease, Bitlet.app offers a convenient way to buy cryptocurrencies like Ethereum. Its Crypto Installment service allows users to purchase cryptos now and pay in monthly installments, making investing more accessible without heavy upfront payments.

Stay tuned for more updates on Ethereum's upgrades and how platforms like Bitlet.app can help you get started with crypto investing in a flexible and user-friendly way.