The most recent build as of this writing is build 14955. These builds are a preview of the upcoming 'Creators Update'.
If you would like to try out an early preview of the Paint 3D app, Microsoft offers an official way to test it. The app has tools to transform 2D drawings into 3D objects. It comes with tools like markers, brushes, various art tools to help users create objects. Paint 3D is going to be a new Universal Windows Platform app and its user interface will be completely different from Classic Paint. Here is how you can get the official preview of the app. It is expected to be bundled with Windows 10 Creators Update, the next major release of Windows 10 which should become available in March 2017. Paint 3D is the brand new Windows 10 app that everyone is raving out because of how easy Microsoft made it for non-professionals to create 3D objects by drawing or scanning. RЕCOMMENDED: Click here to fix Windоws issues and optimize system performance