Ethereum completed its Fusaka upgrade on Dec. 3, marking one of the network’s most essential steps toward long-term scalability. The upgrade builds on a series of changes since the 2022 Merge and follows the earlier Dencun and Pectra releases, which lowered Layer 2 fees and increased blob capacity. Fusaka goes further by restructuring how Ethereum confirms that data is available, widening the channel through which Layer 2 networks like Arbitrum, Optimism, and Base post their compressed transaction batches. It does this through a new system called PeerDAS, which allows Ethereum to verify large volumes of transaction ... (full story)