Sapio is rapidly maturing, but it is still early-days for bitcoin smart contract compilers, and early-days for Sapio in particular. As such, one should be careful to closely audit smart contracts designed with Sapio, be careful to only use such contracts with trusted inputs, and in general take precautions to ensure security of funds. As Sapio matures and we gain confidence in smart contracts built with it, Sapio should be able to greatly improve the security for many bitcoin users and applications.
Other than these general "alpha software" disclaimers, Sapio is designed with certain upgrades to Bitcoin in mind that have not yet landed. While Sapio is designed to work even without these upgrades, the functionality is severely reduced or has a different security model.
This section goes over some of these limitations and when we might expect to see them addressed.