The development of applications using the DLT enables the creation of new business models in various sectors of the economy and it has the potential to tackle, on a large scale, important challenges for our society, due to its ability to increase trust in the relationship among stakeholders. Technical immutability is key to build trust among stakeholders. On the other hand, real-life introduces practical needs to update applications with smart contracts. This document defines some recommendations to tackle changes in applications using smart contracts. The discussion of whether DLT networks provide different levels of technical immutability is out of scope of this document.