Reth Team Priorities for Ethereum’s Fusaka Upgrade and Scaling

Summary

This roadmap presents the Reth team’s view of what Ethereum should prioritize after Pectra, with a proposed Fusaka release in the third quarter of 2025 focused on scaling layer-2 networks. Recommended work includes PeerDAS and a higher blob target, EVM Object Format, repricing modular exponentiation to reduce denial-of-service risk, and cheaper verification of secure-enclave signatures. The post describes some proposals as already implemented, tested, or deployed on other networks.

The team argues that Fusaka should avoid large system-wide changes, an alternative virtual machine, and several other proposals it considers poor fits for the upgrade’s scope or timing. It advocates more frequent hard forks while separating release work, scope decisions, and longer-term research. After Fusaka, it suggests further layer-2 scaling through blob-only changes and layer-1 capacity work involving gas limits, repricing, and block-level warming. These are the Reth team’s recommendations and estimates of readiness, not a finalized Ethereum roadmap or evidence that the proposed changes shipped.

Key ideas

• The Reth team proposes prioritizing layer-2 scaling in Fusaka, including PeerDAS and more blobs.
• It also recommends EVM and cryptographic-verification changes, alongside repricing intended to reduce denial-of-service risk.
• The team argues that several broad system changes and alternative virtual machines should wait.
• It favors frequent hard forks with separate processes for shipping, scoping, and research.
• The proposals express one team’s view and do not confirm upgrade scope or deployment.

Tags

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.