During October 2025, Ddtkey focused on security hardening and dependency management for the tarantool/datafusion repository. They upgraded the Testcontainers dependency to version 0.25.2 in response to the RUSTSEC-2025-0111 advisory, removing a previous ignore and documenting the rationale to close related issues. Working exclusively in Rust, Ddtkey prioritized dependency hygiene and security auditing within the continuous integration and test infrastructure, ensuring that the security posture was improved without impacting production code. Their approach delivered a targeted security enhancement, maintaining system stability and performance while addressing a specific vulnerability through careful dependency upgrades and process documentation in the codebase.