Final Fantasy Xv Windows Edition V1138403 A Exclusive -

Final Fantasy XV Windows Edition was released on March 6, 2018 (Steam, Origin, Microsoft Store).
The version number v1138403 appears in some community patch notes and executable metadata as a post-release update (likely around late 2018–early 2019), but it is not a separate exclusive edition.
No “exclusive” content, storefront, or platform was tied to v1138403 — it is simply a build identifier for a general patch.
The Windows Edition already included all console DLC up to that point (Episodes Gladiolus, Prompto, Ignis, Comrades, and various item packs), plus first-person mode, higher resolutions, and NVIDIA GameWorks effects.
If “exclusive” was intended to mean “PC-exclusive features,” those existed in all Windows Edition builds, not specifically v1138403.