Enhanced Multi-Migration Manage canister state evolution through a chain of migration modules. Each migration captures one logical change (add, rename, drop, transform a field) and the compiler verifies the entire chain is consistent. When to Use - Adding, removing, or renaming persistent actor fields - Changing a field's type - Restructuring state across canister upgrades - Project has configured in Critical Rules - Never use keyword, / , or inline - Actor variables are declared without initializers — values come from the migration chain - The actor body must be static (no top-level side eff…