Worked on the percona/percona-server-mongodb repository to deliver a threading policy update aimed at improving code consistency and concurrency safety. Developed a feature that bans the use of std::jthread, standardizing threading implementations on stdx::thread or unittest::JoinThread throughout the codebase. This policy was enforced by introducing a ban-list entry and updating unit tests to verify compliance with the new restriction. The work focused on C++ development and code quality assurance, with Python used for testing. By aligning threading practices, the update reduces threading-related risks and supports maintainable, safe concurrency patterns across the repository’s development workflow.