Ethereum's mainnet has successfully completed the Fusaka upgrade, marking a significant step in its scalability roadmap. The upgrade enhances Layer 1 performance, expands blob capacity, improves rollup cost efficiency, and introduces user experience improvements. A key feature of Fusaka is the Blob Parameter Only (BPO) fork mechanism, designed to safely increase blob capacity as rollup demand grows. Consensys has indicated that Ethereum plans to shift from annual upgrades to a more accelerated schedule of two hard forks per year.