The confusion arises because some third-party vendors (Steam, Aerosoft) refer to scenery regions as "DLC" in their store listings. Hence the term "x plane 11 global scenery dlc" appears in search queries.
Launch X-Plane. Go to Settings → About X-Plane. If it shows 11.55r2, you’re up to date. If it says “CODEX” or any non-standard build number, your installation is compromised. x plane 11 global scenery dlccodex upd
Before you download any file labeled x plane 11 global scenery dlccodex upd, consider these real-world consequences: Launch X-Plane