The Sei team has advised holders of USDC.n, also known as USDC via Noble, to convert their tokens to native USDC ahead of a planned network upgrade in March. Sei warns that post-upgrade, USDC.n may become inaccessible or lose its value on the network. USDC.n was initially issued by Circle through the Noble chain and served as the primary form of USDC on Sei before the introduction of native USDC. Currently, approximately $1.4 million in USDC.n remains on the Sei network.