Android Open Source Project guru Jean-Baptiste Queru sends word that the new version of Android, 4.1 Jelly Bean, is being released to AOSP today. This process is the first step in the official release of Jelly Bean, allowing anyone and everyone to download the Android 4.1 source code and compile their own version of the OS. It's also an important milestone towards getting Jelly Bean out there on existing devices. The exact version number that's being released is Android 4.1.1_r1, so it's likely that this will be the final shipping version of Jelly Bean, just as Android 4.0.1 was for ICS. (We're seeing no OTAs on our Google I/O Jelly Bean devices just yet, though.)
The code being published right now includes proprietary binaries that allows Jelly Bean to be built for the Galaxy Nexus and Nexus 7, and Nexus S and Motorola Xoom binaries are promised in the near future. As always, note that this source code is for developers only -- you can't download this and magically get Jelly Bean on your device -- it's a bit more complicated than that. Nevertheless, today's release will be exciting for Android devs and custom ROM enthusiasts, as it starts the process of getting popular custom ROMs merged with the Jelly Bean code, and eventually pushed out to eager ROM flashers.
Source: JBQ on Google Groups