A new iSAR2 software release is now available. This release is the result of the popularity of our ultra-fast SAR scanners (iSAR Head and iSAR Flat) and great suggestions from our customers. Version 2.1 of the iSAR software has several new features, including a new multi-iSAR interface, a smart Combiner feature, and full extension of the software for frequencies up to 6 GHz. It also includes enhancements to our existing features, such as an improved Python interface and enhanced control of the CMU200.