Updated to version 1.2. As long as you upgrade from version 0.7a (or later), or this is a fresh install, just replace the old DTH and hit force reconfigure. Otherwise if you upgrade from an old Universal Enhanced Zigbee Lock DTH you will need to remove your lock from SmartThings and readd it.
This version adds the Health Check Capability. Health Check is a recently implemented feature by SmartThings to better determine if a device has become unresponsive. Version 1.1 changed the on/off attributes to true/false. Both are recommended updates but not required.