The existence of the Android 4.3 Jelly Bean firmware can now be seen in leaked screenshots of many devices and reportedly the new firmware is ready for download.

According to a SamMobile report, Google is planning to update the Google Play Edition of the Galaxy S4 to the Android 4.3 Jelly Bean firmware. The report cites sources close to the Android project.

"Samsung is currently testing build name JWR66N, which is Android 4.3. Google announced the Galaxy S4 Google Edition at Google I/O this year. The hardware of the Galaxy S4 is the same as other snapdragon-powered Galaxy S4, only the software is based on Google's own interface. The Galaxy S4 Google Edition ships with Android 4.2.2 on board but is expected to be updated in July, according to our insider," the report says.

According to another report by SamMobile, the Android 4.3 Jelly Bean firmware has already been leaked and is ready to download.

The leaked firmware is available for Samsung Galaxy S4 (GT-I9505) ported from Google Play Edition (GT-I9505G).

Here are the details of the leaked firmware:

Android version: 4.3

Build ID: JWR66N

PDA: I9505GUEUBMFP

CSC: I9505GXARBMFP

Build Date: 26 June 2013

Changelist: 968842

Download: (Choose either one)

- Android-4.3-I9505GUEUBMFP-Odexed-I9505
MD5: 363ED9CC32A841A512E72372A19C7D05

- Android-4.3-I9505GUEUBMFP-Deodexed-I9505