After the game has downloaded the DirectX 12 supported build you can then toggle DirectX 12 from either the launcher window or from the Display options within the game. Note that DirectX 12 requires a restart of the game if (de-)activated from within a running Deus Ex: Mankind Divided game session.

o WARNING: Using the DirectX 12 API can offer better performance on some systems, however, it will not be beneficial on all.
o Multi-GPU is not yet supported in this patch.
o If you encounter problems with DirectX 12, we recommend turning it off again. There are no visual or gameplay differences between the two DirectX versions.
o As always, make sure that your drivers are up to date:

DX12-supporting driver for AMD graphics cards: http://support.amd.com/en-us/kb-articles/Pages/Radeon-Software-Crimson-Edition-16-9-1-Release-Notes.aspx

DX12-supporting driver for NVIDIA graphics cards: http://www.nvidia.com/download/driverResults.aspx/107012/en-us

Known DirectX 12 issue:
- There is a known bug that causes some very high end cards to regress relative to DirectX 11. This bug is being addressed by the development team.

While we expect this patch to be an improvement for everyone, if you do have trouble with this patch and prefer to stay on older versions, we have made a Beta available on Steam, v1.0_build524.6, v1.0_build524.7, v1.1_build524.10, v1.2_build524.15 and v1.3_build524.17 that can be used to switch back to previous versions.