No specific info about version 2.1. Please visit the main page of Shure Update Utility on Mac Informer.
This app can install the latest system updates for macOS Sierra installations.
It allows you to quickly and easily update your UP24 band device.
The app allows you to update firmware for the SteelSeries Stratus MFi.
This app allows you to update firmwares for Arduino based devices. This
ZOOM G3v2 G3X System updater allows you to update your G3v2 G3X device firmware.