medium10 pts · first answer countsupgradeabilitysecurity

Upgrading a proxy safely

In a proxy-based upgradeable contract, what must the new implementation do with its state variables?

A.Declare them in any order, because the proxy copies them by nameB.Use a constructor to set initial valuesC.Rename every variable to avoid conflictsD.Keep the existing variable order and types, adding new variables only after them (or use namespaced storage)

← Custom errors Front-running a swap →