It has not been released yet.

According to the newest update, DSD is supported in MM5 build 2500
https://www.ventismedia.com/mantis/view.php?id=11184
Where can I download this build? It's not in the MM5 test builds thread.

Great to hear that there's progress on DSD support!

Hi,
there is an Alpha state DSD plugin, but it very unstable, there is no tagging support and it is designed for MM5 to test support and playback (Drag and Drop DSD file to MM now Playing)

How to install plug-ins to enable mediamonkey to support DSD playback？