DirectX 12 Ultimate receives periodic updates via Windows Cumulative Updates (usually every 2–3 months for drivers, less often for new features). Unlike a standalone app, you don’t need to manually download new versions constantly.
Windows will automatically detect, download, and install any available DirectX updates for your system. directx latest version download
After updating, restart your PC. Your DirectX is now up to date. DirectX 12 Ultimate receives periodic updates via Windows