[Sei Warning: USDC.n Holders Must Exchange for Native USDC Before Upgrade] Crypto project Sei advises USDC.n holders to exchange their USDC.n tokens for native USDC before the SIP-3 upgrade planned for March. USDC.n is an older version of USDC issued via the Noble blockchain, with a current circulation of approximately $1.4 million. After the upgrade, the Sei network will fully transition to a blockchain supporting the Ethereum Virtual Machine (EVM) and gradually phase out the CosmWasm smart contract framework and Cosmos native assets. The Sei team warns that USDC.n may become unusable or lose its value after the upgrade.