Upgradable and scalable smart contracts

The Ethereum blockchain is immutable, which means that you can't modify its past actions. Once an action is confirmed by the majority of the miners, that action stays there forever. The same restrictions apply to smart contracts. However, we, as Ethereum experts, are able to overcome the issue of deploying unscalable code that ends up being vulnerable because we understand that there are different development techniques where we create scalable code. The idea is to deploy smart contracts so that they are ready to scale in the future with a set of different, interchangeable contracts. Knowing how to create smart contracts that scale and can be improved in the future is an essential skill that any top Ethereum expert must possess, so don't miss out on it.

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