From the Lionel Site.
* Adds support for Legacy Station Sounds Diner cars.
* Adds new TxIR (Transmit IR) button to the "Custom" tab of the CAB2 display. This feature is for use with upcoming Lionel SensorCar, which allow trains pulled by older locomotives to work with SensorTrack.
* Allows proper CAB2/SensorTrack configuration of current or future products with SensorTrack compatability, such as Subway, Breakdown B-unit, Freight Car, Station Sounds cars and Legacy Crane/Boom Car.
* Train builder: Fixed bug where Train Link wasn't automatically set on accessories, passenger car, etc. when that device's TMCC ID was between 1 to 9
I will have the 1.6 software at the LUG meeting to create system modules. You will need 2 writable modules.