This version of the API shipped with Indigo 6 beta 5 - check the API Version Chart to see what version of the API is available in which Indigo versions.
Added new indigo.showModems filter - this filter for the indigo.server.getSerialPorts method will include modem type serial devices. We've found that on occasion the FTDI serial drivers will create port names that look like: /dev/cu.usbmodemfa131 rather than the more typical /dev/cu.usbserial-A500DA38. This filter will allow those ports to be returned in the method call.
Device types defined by plugins will now appear in the order they're declared in the Devices.xml file in the Model popup in the Device Edit dialog.