Openzeppelin recently released version 5 of the solidity libraries. In this article, you, as a developer will get to know the imperative changes and updates. The minimum solidity version for using OZ libraries is also now bumped up to 0.8.20. You might face problems working with this version

An effective guide to understanding User-Defined Operators in Solidity and how they work

Do you know EVM has the functionality of rewarding users with a gas refund for clearing the on-chain storage occupied by the contract data? Let’s learn more about this. There have been some changes after the London fork. But to understand it better we will look at the scenario