LocalStack for Snowflake 1.4 offers practical upgrades aimed at enhancing compatibility and streamlining development processes, with new SQL functions and improvements that bring its behavior closer to Snowflake's. This version includes features such as column exclusion in SELECT queries, expanded UPDATE semantics, inline foreign keys, and session-level options for JSON or Arrow result encodings, along with batched results for large queries. Error reporting has been refined to support Snowflake-compatible asynchronous responses, improving integration with popular clients and connectors. The release supports several new SQL functions, enhances query semantics, and improves result handling, thereby facilitating local development and testing of Snowflake workflows with greater fidelity to production environments. Users are encouraged to upgrade to LocalStack for Snowflake 1.4 to take advantage of these new features and enhancements.