# [RFC] Update Crosschain Governance Parameters for Avalanche, MegaETH, Soneium, and X Layer
AI summary
This proposal aims to update Uniswap's cross-chain governance system across several blockchain networks: Avalanche, MegaETH, Soneium, and X Layer. It involves two main changes: first, transferring ownership of Uniswap v2 and v4 contracts on Soneium and X Layer to a new type of contract called CrossChainAccount, which is considered a best practice for executing messages from Ethereum. Second, it proposes to switch the entire messaging system for Avalanche and MegaETH from LayerZero v1 to Wormhole, due to parts of LayerZero v1 being deprecated.
If passed, this proposal will enhance the security and reliability of Uniswap's governance across these chains by adopting updated cross-chain messaging standards. It primarily benefits the Uniswap protocol and its users by ensuring smoother and more secure execution of governance decisions, with no direct financial impact on the treasury or specific individuals.
Voting results
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# [RFC] Update Crosschain Governance Parameters for Avalanche, MegaETH, Soneium, and X Layer
Summary
Secure crosschain messaging is an integral part of Uniswap's governance model. Governance votes like protocol fee adjustments are executed by UNI holders on Ethereum Mainnet and must subsequently be relayed to destination chains.
This proposal updates Uniswap's crosschain governance system to accommodate the latest best practices. Specifically, we propose to:
- Transition ownership of the Uniswap v2 and v4 contracts on Soneium and X Layer to CrossChainAccount contracts, which we con…