Immutability and upgradability are crucial key concepts when writing Solidity Smart contracts.
We advice to read this 4 parts article written by Boom : Upgradability patterns Part 1
![](https://blockchain-resources.com/wp-content/uploads/2022/09/upgradability_patterns.jpg)
Immutability and upgradability are crucial key concepts when writing Solidity Smart contracts.
We advice to read this 4 parts article written by Boom : Upgradability patterns Part 1