We’ve seen the Galaxy S4 (I9505) running a port of Android 4.3 before but this is the first time we’re seeing an official ROM for the Galaxy S4. The I9505XXUEMI8 ROM, courtesy SamMobiles is up for grabs for daring users who want to flash their devices to the latest Android version. Mind you, this version is not final so you may want to proceed at your own risk.
Most Android 4.3 improvements are under the hood but some of the most notable changes include support for Samsung KNOX, Samsung Wallet, Reading Mode and improved performance and optimisations. There’s no mention if this ROM supports Galaxy Gear but the final version will definitely support all the functions of the Galaxy Gear.
Samsung expects to officially roll out the Android 4.3 update for the Galaxy S4 later this month.