During December 2025, this developer enhanced the SSH driver in the jumpstarter-dev/jumpstarter repository by removing support for deprecated DSS keys, addressing security concerns associated with legacy cryptographic practices. They upgraded the Paramiko library, refactored the key-loading logic, and updated unit tests to ensure compatibility with the new API. Their work focused on backend development using Python, emphasizing security best practices throughout the process. By eliminating insecure key types and maintaining comprehensive test coverage, the developer improved the security posture of the SSH driver while ensuring production stability and providing a clear migration path for downstream users of the project.