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Base uses Reth, a high-performance Ethereum execution client. Reth V2 is the next major release, targeting the two primary constraints on a high-throughput chain: disk usage and state root computation speed.
Reth V2 does not require a network upgrade - it ships as a node software update alongside Beryl. Node operators should upgrade to the latest base-reth-node release before the Beryl activation date.

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Storage V2

Storage V2 restructures on-disk data layout to significantly reduce node storage requirements:
Node typeDisk reduction
Full~30%
Minimal~50%
Archive~23%
This removes a disk-growth ceiling that would otherwise constrain Base’s ability to scale block throughput.

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State Root Computation

Reth V2 rewrites the state root pipeline with three improvements:
  • Warm sparse-trie caching across blocks - avoids recomputing unchanged subtrees between consecutive blocks.
  • Parallel trie - computes state root components concurrently across CPU cores.
  • Proof V2 - a redesigned proof-generation path that reduces per-proof overhead.

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Performance

In Reth’s published benchmarks, these changes deliver:
  • +33% throughput
  • ~25% lower mean block-execution latency
base-reth-node inherits these gains directly, contributing headroom on the path to 1 gigagas/s.