The #FUSAKA hard forkāa crucial combination of the #Osaka (Execution Layer) and Fulu (Consensus Layer) upgradesāis set for launch next week. This upgrade is Ethereum's most significant step toward massive scaling and data availability since Dencun.
šÆ Core Mission: Data Availability and Throughput
Goal: Fusaka's primary objective is to make Layer 2 Rollups (L2s) cheaper and faster by drastically increasing the network's data handling capacity.
Decentralization: It ensures this capacity increase does not raise the hardware requirements for running a full node, protecting network decentralization.
š The Flagship Feature: PeerDAS
EIP-7594 (Peer Data Availability Sampling): This is the centerpiece of the upgrade and the engine for massive scaling.
Function: Instead of requiring every node to download and verify the entirety of large data segments (blobs), PeerDAS allows nodes to verify data integrity by sampling only small, random pieces of the data.
Impact: It effectively breaks the current ceiling on data throughput, enabling L2s to post far more data without overwhelming stakers running nodes at home. This is essential for scaling Ethereum to support global demand.
Security:This sampling mechanism is secured cryptographically through Reed-Solomon encoding and KZG commitments (inherited from Dencun), ensuring high confidence in data availability with minimal bandwidth requirements.
š Scaling and Execution Capacity
Blob Capacity Increase: Fusaka increases the base capacity for data blobs per block, directly giving L2s more room to post compressed transaction data.
BPO Forks: The upgrade introduces the framework for Blob-Parameter-Only (BPO) forks. This allows the network to safely adjust the maximum blob limit in the future via non-contentious, minor upgrades, providing flexible scaling without needing a full hard fork every time.
Gas Limit to 60M: The block Gas Limit is being raised from the current variable target (around 30-45M) to 60 million. This significantly increases the raw execution throughput of the Layer 1 Mainnet itself.
šø User & Developer Impact
L2 Fee Reduction: Users on rollups (Arbitrum, Optimism, Base, etc.) will see significant fee reductions as the cost for L2s to post data to Ethereum plummets.
Enhanced Decentralization: PeerDAS ensures that running a validating node remains accessible, lowering the barrier to entry for home stakers even as the network scales.
Other Key EIPs: The upgrade includes several other EIPs focused on developer tooling, such as further refinement of the EVM Object Format (EOF) and various performance tweaks for the Consensus Layer.
Status Update: All core testing on devnets and testnets has been finalized. Node operators must upgrade their clients immediately to ensure a seamless transition for the entire network on December 3rd. Fusaka paves the path for an affordable, decentralized, and globally scalable Ethereum $ETH
#fusakaupgrade #Fusakaåēŗ§ #FusakaFork
