Definition ∞ A smart contract designed to facilitate the transfer of tokens or data from an older version of a blockchain protocol to a newer one. This is essential during protocol upgrades or when transitioning to a different blockchain. It ensures continuity and asset preservation.
Context ∞ The security and efficiency of migration contracts are paramount during protocol upgrades. Flaws in these contracts can jeopardize user assets and disrupt network operations, making rigorous testing and auditing critical before deployment.