This is the first KitKat update for US carriers on the Galaxy S4, showcasing Sprint's recent push to give their customers the latest and greatest well before their competitors.
If you haven't yet received a notification to update, try forcing and OTA (over the air) update by going to Settings -> More -> About device -> Software update -> Check for updates.
Did you get your update? Let us know what new stuff you found in the comments below.
Want to master Microsoft Excel and take your work-from-home job prospects to the next level? Jump-start your career with our Premium A-to-Z Microsoft Excel Training Bundle from the new Gadget Hacks Shop and get lifetime access to more than 40 hours of Basic to Advanced instruction on functions, formula, tools, and more.