While smartphone manufacturers like HTC and Sony have been quite vocal about their desires to upgrade their flagship lineups to Android 4.4 KitKat, Samsung has kept its lips tightly sealed. Luckily, thanks to unofficial channels, Samsung Galaxy S4 owners don't have to wait any longer to get a sneak peek at KitKat for their device: the firmware has leaked and can now be downloaded now.

The leaked Samsung Galaxy S4 Android 4.4.2 KitKat firmware comes (once again) courtesy of SamMobile's insiders. The update, firmware I9505XXUFNA1, applies only to the Galaxy S4 model GT-I9505. SamMobile states that it tested the build for around five days before releasing it for download, and that it is fairly stable other than the usual "hiccups" that are inherent in test builds.

As usual, if you haven't flashed your Android device before and don't have experience, it's best to simply wait for the official rollout. According to SamMobile, the Galaxy S4 Android 4.4.2 update should release sometime in February or March.

For those still intrepid enough to flash their GT-I9505 Galaxy S4 up to Android 4.4.2 KitKat, the download can be found here. Users of Chainfire's SuperSU app for root access will be pleased to know that Chainfire has released an updated version of SuperSU that works with the leaked build (SuperSU initially didn't work with the leaked Galaxy S4 KitKat firmware).

The Android 4.4.2 update brings the usual boost to security and performance along with some changes to the user interface. Status bar icons are now white, a KitKat standard for transparent status bars. There's also a new camera shortcut from the lockscreen, and an improved keyboard.

Let us know if you flash your Samsung Galaxy S4 up to Android 4.4.2 KitKat and what you think of the new Android firmware in the comments section below.