During March 2025, Dmitry Goncharov focused on improving merge stability in the microsoft/git repository by developing a regression test targeting a directory-rename crash in the merge-ort path. Using Shell scripting and Git, Dmitry constructed a test scenario that reliably reproduced a complex crash involving conflicting directory and file renames across branches, which previously triggered assertion failures. By validating the accompanying fix with this test, he ensured that future merges would be more robust against similar edge cases. This work deepened test coverage for challenging rename scenarios, demonstrating careful attention to reliability and thoroughness in testing within the core Git codebase.