> Aztec.nr API reference, v6.0.0 (mainnet and testnet). Index: https://docs.aztec.network/aztec-nr-api/mainnet/llms.txt

# Struct update_parameters

Module: `contract_instance_registry_interface::ContractInstanceRegistry`

```rust
pub struct update_parameters {
    pub new_contract_class_id: ContractClassId,
}
```

## Fields

```rust
new_contract_class_id: ContractClassId
```