Tezos is a blockchain network that is similar to Ethereum in that it is based on smart contracts. However, there is a significant difference: Tezos seeks to provide more advanced infrastructure, which means it may evolve and improve over time without the risk of a hard fork. Since their inception, both Bitcoin and Ethereum have suffered from this problem. People who own XTZ can vote on protocol changes proposed by Tezos developers.
This open-source platform claims to be "safe, upgradable, and built to last," and claims to provide smart contract language that delivers the accuracy needed for high-value use cases. Tezos claims that its approach makes it futureproof and that it will "stay state-of-the-art far into the future," implying that it can adapt to changes in blockchain technology.