Updating contract variable that references another contract

Support Upgrades
1

Hi everyone!

I'm dealing with the current situation right now and want to check with you. Working with an UUPS smart contract where the storage layout looks like this:

address public firstVar;
uint256 public secondVar;
ContractA public contractA;

ContractA is another UUPS smart contract which I want to rename to ContractB. So the new storage layout will have the following structure:

address public firstVar;
uint256 public secondVar;
/// @custom:oz-renamed-from contractA
ContractB public contractB;

Since ContractB will have the same storage layout/methods and contractB (formerly contractA) holds only the contract address, is it safe to upgrade it?

Thanks!

2

Yes, it is safe to upgrade it.

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