There have been revs of the sensor file definition that have fixed things, and some that have added support for other sensors. This is the latter. So basically, if everything works, you shouldn't have to update it. At the same time, it also shouldn't hurt to load it. We try to be explicit when you REALLY need to update something. In this release, you don't need to, unless you're using a newly supported sensor (like the GRT hall effect amps sensor).