Derived from MarsBit, Vitalik Buterin posted on December 4, 2025, celebrating the successful Ethereum Fusaka upgrade, which implemented PeerDAS to achieve sharding and data availability sampling. He noted that while Layer 2 transaction capacity has seen a quadratic increase with blob capacity expansion, Layer 1 remains constrained until zero-knowledge EVM matures. The upgrade marks a key evolution in blockchain scalability, filling a decade-long roadmap gap since Ethereum's sharding vision in 2015. The next two years will focus on optimizing PeerDAS stability and expanding L1 gas limits for broader throughput.
Vitalik Buterin Celebrates Ethereum's Fusaka Upgrade and PeerDAS Implementation
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