There’s a new version of XCTU available. I have only had a few hours of experimentation and I feel like I have a much better understanding of how to use an XBEE. Built in API frame maker, network visualizations, and wireless updating to a node in an easy to interpret package. Well done Digi! There are so many new features worth looking into!
http://www.digi.com/products/wireless-wired-embedded-solutions/zigbee-rf-modules/xctu