2015 Navigation Map Updates are beginning to be released.
A handful of 2015 Navigation Map Updates have been released including Road Map North America NEXT 2015-1 for car's with Option 609 Professional Navigation System and the latest NBT Head Unit:
For Map update, you will need to obtain the correct Map version for your Head Unit Type / Geographic Region, and a Map Update FSC Code for Installation.
If you have 609 Professional Navigation System, and are unsure of which Head Unit type / Map version (PROFESSIONAL, PREMIUM, or NEXT) you need, see here:
If you have 606 Business Navigation System, you will need either MOVE, MOTION, or ROUTE Map version.
If you have questions on how to update, send me a PM.