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+# Changelog
+
+This changelog summarizes major feature additions and important fixes from the initial project history through `56d6b3d`.
+
+## Highlights (chronological)
+
+- **Initial platform baseline (2024-03-11):** Core Project AirSim codebase was introduced.
+- **MSVC compatibility fix (2025-07-15):** Fixed `__has_feature` macro issue for Windows toolchains.
+- **Linux setup/package fixes (2026-01):** Fixed missing dependency handling and Linux dev tool installation issues.
+- **Depth capture correctness (2026-01-22):** Fixed depth copy behavior from Unreal.
+- **Local file spec handling (2026-02-10):** Fixed `make_base_specs()` behavior for local files.
+- **Configuration/runtime robustness (2026-05):** Improved `UE_ROOT` relaxed Open3D constraints, and fixed namespace/unit-test integration issues.
+- **UE 5.7 support (2026-02-24):** Upgraded project compatibility to Unreal Engine 5.7.
+- **Build metadata API (2026-03-18):** Added build commit hash service and client helper.
+- **Simulation clock mode expansion (2026-05):** Added and finalized engine-driven/external clock support, including schema and demo updates.
+- **Depth LiDAR support (2026-04-27 to 2026-05-12):** Implemented DepthLiDAR and added UE 5.7 compatibility updates.
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