Google newest update for its Android OS (Jelly Bean 4.3) is likely to reach Samsung Galaxy S4 as early as September. Although it is rather a minor update (as opposed to the highly anticipated Android 5.0 Key Lime Pie), Galaxy S4 users would be happy to receive the update since it improves graphic performance through Open GL ES 3.0.
Nevertheless, Samsung is refusing to indicate specific dates on the Android 4.3 update for its devices. S4 is definitely among the first to get the update since it has better hardware specs. S3 and Note II users might also benefit from the update.