In November 2024, Ivan Mitrovic contributed targeted maintenance to the gem5/gem5 repository, focusing on build stability and dependency management. He updated the Werkzeug dependency to version 3.0.6 in gem5-resources-manager, ensuring compatibility with upstream changes through a minimal, low-risk modification. Addressing a C++ compilation issue, Ivan added a missing standard library include to src/base/random.cc, restoring test suite reliability and maintaining code health. His work demonstrated practical application of C++ development and build system expertise, delivering small, auditable changes that preserved reproducibility. The depth of his contributions reflects a careful, test-driven approach to ongoing project maintenance.