Overview
The Terra Classic network is undergoing an upgrade to align its WebAssembly (Wasm) implementation with the upstream CosmWasm framework. This upgrade introduces changes to gRPC contract queries, specifically affecting the QueryContractInfo service.
Changes
- gRPC QueryContractInfo:
- A new address field has been added to the response.
- The contract_info field is now the second field in the response (previously the first).
Impact
- Not Affected:
- dApps using REST (LCD) interfaces via libraries like terra.js, feather.js, or similar are unaffected.
- Smart contract state queries and transaction execution remain unchanged.
- Affected:
- dApps or tools using gRPC directly or through libraries like CosmJS or cosmES for QueryContractInfo queries must adapt to the new service type.
- This change may impact how contract information is displayed in some applications but does not affect querying contract data or state.
Action Required
- LCD Users: No action is needed.
- gRPC Users: Update your implementation to use the new QueryContractInfoService instead of the legacy service.
- Testing: dApp teams have a one-month notice period to patch and test their applications to ensure compatibility with the new service.
Timeline
- Developers have one month to implement and test the necessary changes before the upgrade takes effect.
Ensure your dApp is ready for the Terra Classic Wasm unforking upgrade to maintain seamless functionality.