Verizon pushed out an update at the end of May to add a number of enhancements to the Galaxy S III. However, after users flooded the Verizon forums with reports of broken LTE, Big Red pulled the update. A slightly tweaked version is about to roll out with a few more features, and presumably no LTE issues.
The update listing doesn't make mention of the data fix, but that's understandable. It should be noted that this update's changelog is a bit different than the last one.