During May 2025, Meo Nguyen upgraded the cosmos/evm repository to Cosmos SDK v0.53, focusing on modernizing the EVM module and improving transaction processing. He refactored the AccountKeeper interface to support unordered transactions, which enhances system flexibility and stability. By removing params keeper usage from app.go and initParamsKeeper, he simplified module initialization and reduced runtime coupling. His work included updating Go modules and dependencies to align with the new SDK version, ensuring maintainability and compatibility. Utilizing Go, Cosmos SDK, and dependency management skills, Meo delivered a well-scoped feature that addressed both architectural improvements and future upgrade paths.