Sei (@SeiNetwork) Labs says the network's EVM store has been migrated to FlatKV, the largest migration since SeiDB launched in 2024. The move is a step in the preparation of the Sei Network (
Sei (@SeiNetwork) Labs says the network's EVM store has been migrated to FlatKV, the largest migration since SeiDB launched in 2024. The move is a step in the preparation of the Sei Network ($SEI) for its Giga upgrade.
According to Sei Labs, the process moved 712 million EVM keys at a rate of roughly 2,150 per second. Final checks against backup nodes found zero mismatches. The migrated data covers about 70% of the chain's total keys.
FlatKV is a flat key-value storage layer for EVM state. Sei's open-source repository shows the FlatKV EVM migration shipping in the v6.7 release branch, and the project's technical documentation describes tooling that lets validators check whether the migration has completed. Sei's code also includes a tool that computes a backend-independent digest of EVM state, so a node on the older memIAVL store can be compared with a FlatKV node at the same block height. That is the kind of check that underpins a zero-mismatch result.
The work is part of a broader storage redesign. Sei's Giga roadmap describes Eidos, the state management component, as replacing Merkle trees with a flat key-value store and separating hot state from cold archives, according to a summary of the roadmap published by KuCoin News.
Giga is Sei's multi-part upgrade program. Crypto Briefing reported that the public roadmap targets more than 200,000 transactions per second and sub-400 millisecond finality, and that Sei Labs is rolling it out progressively through 2026 without a single launch date. The same report put Sei's previous throughput at roughly 5,000 to 12,500 TPS.
The upgrade has three components: Autobahn for consensus, Ares for execution and Eidos for storage. Altcoin Buzz reported that Ares was already introduced as the default execution client through the v6.6 mainnet upgrade, and that Eidos separates EVM state from the rest of Sei's Cosmos SDK data. The roadmap's performance figures are targets, and the project's own materials describe them as coming from internal testing rather than public mainnet conditions.
For developers and validators, a clean migration of the largest share of the chain's state reduces one risk ahead of further Giga stages. Sei Labs has not said in the material reviewed when the remaining components, including Autobahn consensus, will reach mainnet.
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