Token Migration

Token migration is the replacement of one version of a token with another, in which holders swap their old tokens for new ones, typically one for one, and the old version is retired. Projects migrate for several reasons. A team that first launched an ERC-20 token on Ethereum may move to its own blockchain once it launches, a process known as a mainnet swap. Others migrate to fix a bug or security flaw in a smart contract, add features, change the token's economics or complete a rebrand, as when Polygon moved from MATIC to POL in 2024. Exchanges often handle the swap automatically for customers, while self-custody users must use the project's official migration tool, sometimes within a deadline. Migrations are a favourite pretext for phishing: fake sites urge holders to "migrate" and drain their wallets, so users should confirm announcements through official channels.