Ethereum Fusaka Upgrade: 8× Throughput, New EIPs & Security
Ethereum Fusaka upgrade, set for December 3, 2025, unifies nine core EIPs to boost network performance, security and scalability. It introduces PeerDAS (EIP-7594) for 8× data throughput via distributed sampling, cutting node storage and enabling Layer 2 scaling. The upgrade enforces a minimum blob fee (EIP-7918) and enables flexible blob parameter adjustments without hard forks (EIP-7892), ensuring economic stability. Security gains include operation and gas size caps (EIP-7823, EIP-7825), higher MODEXP costs (EIP-7883) and an 8 MiB execution-layer block size limit (EIP-7934) to mitigate DoS risks. Developer and user tools improve with predictable block proposer pre-confirmations (EIP-7917), a new CLZ opcode for gas-efficient math (EIP-7939) and P-256 signature support (EIP-7951). No user action is required, but validators must update clients to avoid network disruptions. This Ethereum Fusaka upgrade lays a foundation for future dApp development, institutional adoption and enhanced Layer 2 rollup efficiency.
Bullish
The Ethereum Fusaka upgrade introduces significant scaling and security improvements—most notably PeerDAS for 8× throughput, blob fee predictability and enhanced DoS protections—which strengthen network fundamentals and reduce transaction costs. In the short term, client updates by validators may cause minor volatility, but long-term implications are positive: broader Layer 2 adoption, better dApp performance and institutional appeal. Overall, these enhancements are likely to drive sustained demand for ETH, supporting a bullish market outlook.