- Problem Statement: Europa v0.2 aims to modify the `Pallet Contracts` layer to provide detailed debugging information for Substrate runtime.
- Significance: Enhancing debugging capabilities for developers by providing rich error information and execution details during contract debugging.
- Proposed Solution: Modify the `Pallet Contracts` layer to record contract execution information and improve error messages, integrate WASMI backtrace function, and introduce a contract logging library.
- Expected Outcomes: Improved debugging experience, better error localization, and enhanced collaboration with other tools for developers using Europa v0.2.

#250 Patract Hub's treasury report for Europa v0.2 (contract and runtime sandbox)