Ethereum Fusaka Upgrade Goes Live: Major Scaling Breakthrough for L2s

⚡ Fusaka Goes Live

By zkSync
Dec 4, 2025, 4:25 PM
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Ethereum's Fusaka upgrade is now live, marking a significant milestone for network scaling and user experience.​

Key improvements include:

  • PeerDAS technology reduces L2 data costs, enabling lower fees over time
  • Gas limit increase from 45M to 60M boosts L1 throughput by 33%
  • R1 passkeys enable phone-native wallets for better accessibility
  • Enhanced proof verification bandwidth for rollups like ZKsync

What this means:

The upgrade maintains decentralization while dramatically improving scalability.​ L2 rollups become more efficient with cheaper data availability and expanded bandwidth.​

Looking ahead:

Next major upgrade "Glamsterdam" is planned for H1 2026, focusing on MEV transparency, censorship resistance, and privacy enhancements.​

This positions Ethereum to onboard the next billion users through improved wallet UX and reduced transaction costs across Layer 2 networks.​

Sources
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