Best practices to write Version 2 contract for upgrade

[Skyge]

Hi, welcome!

@Ravi_Verma

1. There are few methods in version1 contract that are not declared virtual and hence I cannot override them.

I think when you upgrade a contract with a new implementation, it will use the new logic, so even though it is not a virtual function, you can just re-write it to achieve the new logic.

@Ravi_Verma

2. Super keyword in version 1 points to open zeppelin erc20 contract , but in version2 if I inherit version 1 , super keyword will point to version 1 and not open zeppelin contract sitting on top of inheritence.

Not sure what do you mean.

Kind reminder! you can upgrade your contract at any time, but do not change the order of the variable, and you can also have a look at this documentation:

• Writing Upgradeable Contracts - OpenZeppelin Docs