LM_Sensors 3.1.0 will contain a largely rewritten sensors-detect utility, which is used for doing the initial sensor detection on Linux systems. When it comes to sensors-detect, the device probing has been reverted along with bus driver names now being retrieved from sysfs, fixed bus number prediction, and other improvements to make this script smarter and lighter.
Work has also been done to improve the LM_Sensors library, libsensors, to eventually support the automatic configuration of LM_Sensors. For now, the libsensors changes include support for multiple configuration files and performance/memory improvements.
Another change warranting the bump to LM_Sensors 3.1.0 is the reformatting of /etc/sysconfig/lm_sensors to make it easier to edit. Lastly, there is a new default sensors.conf file that is lighter and should lead to a modest performance boost.
Beyond these key changes, found in LM_Sensors 3.1.0 will be random fixes and improvements to different drivers. Among the hardware sensor improvements are support for 45nm AMD CPUs and other new hardware devices.
No release date for LM_Sensors 3.1.0 has been given, but we would expect it to be relatively soon. This announcement was made on the LM_Sensors mailing list.