From this point forward, all new features will support the SDI only - maintaining two sets of code, one for SDI one for non SDI is proving to be too cumbersome.  If there are any technical reasons why you can not run the SDI as it is today, please contact enkindle so that we may make a list of device/software combos that may cause issues and possibly be able to assist you in upgrading to modern software that supports SDI.