Okay, so the Galaxy S 4 may be the new Samsung kid on the block, but there are still a whole lot of Galaxy S III devices out there still. In fact, there are still more and more out there every day. Whether it’s the lack of “wow” from the recent launch of the Galaxy S 4 or it’s the “comfortable yet familiar” feeling that the Galaxy S III can provide, customers still love their old devices and want to hold on to them even longer.

Luckily, it looks like that’s going to be easier now — Galaxy S III aficionados should also be able to avoid feeling even a little envious of their Galaxy S 4 brethren — thanks to a leaked firmware upgrade for the older device, first uncovered by SamMobile. The leaked build of Android 4.2.2 Jelly Bean for the Galaxy S III makes it even harder to distinguish the two devices.

The new firmware brings an updated version of S Voice, more lock screen options and unlock effects, new display modes, a redesigned settings interface, voice control, and other tweaks. The publication has also posted a video (embedded below) to give users a detailed look at what’s under the hood. And, hey, if you’re impatient, you can download the firmware right now instead of waiting until the Galaxy S 15 comes out. Just make sure you know how to flash a ROM.