Sei Network Transitions to EVM-Only Architecture with SIP-3

Jessie A Ellis
Jun 04, 2025 07:43

Sei Network progresses towards an EVM-only architecture as SIP-3 passes its initial governance vote, aiming for streamlined operations and enhanced developer experience.

The Sei Network is making significant strides towards evolving its blockchain architecture as the initial governance vote for SIP-3 has successfully passed. This proposal, aiming to transition the network to an Ethereum Virtual Machine (EVM)-only architecture, highlights Sei’s commitment to enhancing performance and simplifying developer operations, according to Sei.

Community Engagement and Feedback

The proposal’s passage follows an intensive community feedback period, where developers, infrastructure providers, and users actively participated in discussions. This engagement underscores the community’s dedication to the protocol’s ongoing development as the fastest and most efficient EVM chain.

Impact of SIP-3 Implementation

With the implementation of SIP-3, the Sei network plans to deprecate CosmWasm and native Cosmos transactions, shifting entirely to an EVM-only framework. This move is designed to reduce system complexity, improve developer experience, and enhance Sei’s competitive edge within the EVM ecosystem while retaining its performance benefits.

Key Areas of Focus

Feedback from the community has highlighted several critical areas that will shape the refinement and implementation of SIP-3:

• Migration Support for CosmWasm Projects: Mechanisms will be developed to facilitate seamless asset transfers, ensuring users can move between environments efficiently.
• Technical Specifications: Detailed specifications for EVM precompiles will be established to replace core Cosmos functionalities.
• Infrastructure Guidance: RPC providers and indexers will receive comprehensive guidance to support the transition.

Addressing Concerns

While the transition aims to leave EVM assets unaffected, some community members have expressed concerns regarding potential impacts. The focus will be on migrating CosmWasm assets, with ecosystem stakeholders playing a crucial role in this process.

Timeline and Next Steps

A detailed update, including a revised proposal and implementation schedule, is expected to be released in the coming months. This will outline specific phases of the transition, providing ample preparation time for ecosystem participants. No immediate action is required from users or developers at this stage.

Looking forward, SIP author Philip Su will continue to review feedback and update the SIP-3 GitHub repository as additional resources become available. The community is encouraged to subscribe to discussions on GitHub to stay informed of ongoing developments.

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