Are there restrictions on modifying enums and structs in upgradeable contracts?

[frangio]

Structs are now automatically checked by the Upgrades Plugins for Hardhat and Truffle, so the rules mentioned by @abcoathup will be automatically checked for the developer.

Upgrades with Peace of Mind: "Structs" Edition

[image] Last year we launched the OpenZeppelin Upgrades Plugins for Hardhat and Truffle, a new tool that is focused solely on providing security and peace of mind around smart contract upgrades, integrated into your existing development workflow. For a deep dive on the topic of upgrades see The State of Smart Contract Upgrades. We achieve this goal through the automated analysis of your contract, initially ensuring it is apt for an upgradeable proxy deployment, protecting from a situation lik…