Google is currently pushing out an update to Jelly Bean for the Nexus 7 and the update is now on its way to the Android Open Source Project (AOSP).
The update, build number JZO54K, was confirmed by Jean-Baptiste Queru, Technical Lead, AOSP Google, who called it a minor update over the previous version - 4.1.1. Apparently, the new update is also the final version of Jelly Bean, something to hold on to until the imminent arrival of Android 4.2 Key Lime Pie.
"We're releasing Android 4.1.2 to AOSP today, which is a minor update on top of 4.1.1," Queru wrote. "As a note to maintainers of community builds running on Nexus 7: please update to 4.1.2 at the first opportunity. Future variants of the grouper hardware will have a minor change in one of the components (the power management chip) that will not be compatible with 4.1.1. The build number is JZO54K, and the tag is android-4.1.2_r1."
The new update is set to add a landscape launcher for the Nexus 7 (the tablet will now support home screen rotation) in addition to various minor bug fixes and revisions. However, reports have suggested that the new update is likely to be a staggered one and will not be available in all regions immediately.
Although, as of now, no information as to when Google will release the new update for other devices that are currently running Jelly Bean is available, the update's changelog has revealed quite a few device specific moderations that have been made for Google Nexus S, Samsung Galaxy Nexus, the Google Galaxy Nexus, and Motorola Xoom (this includes the Wi-Fi version, as well). However, it's just a matter of time before Google starts rolling out the update for these devices as well.
As far as users of Samsung's Galaxy S3 and Galaxy Note 2 are concerned, they will have to wait a bit more for the respective OEMs to roll out the update.
The previous update 4.1.1 brought a few changes along with it like the Gesture Mode for reliable navigation of the UI using touch and swipe gestures in combination with speech output, CPU and memory efficiency, improved browser performance, a better HTML5 video support, and the ability to swipe from the camera viewfinder to quickly review photos without having to leave the camera app.
Check the complete changelog here.