Banished Angel
Android Enthusiast
The OTA 4.3 update and the factory image Google released for the Nexus 4 is based off JWR66V. There is a newer version, JSS15J, that contains several GPU commits and an updated kernel for the Nexus 4, but wasn't released because a Google employee mistakenly thought JSS15J only contained fixes for the new Nexus 7. The infamous delayed wifi notifications are still present on the JWR66V build, but not JSS15J. Simply put, Google messed up and it doesn't appear we're ever going to get JSS15J. Looks like we'll have to wait until 4.3.1 to get all those nice fixes we've been asking for since the Nexus 4 launched.
Source:
http://forum.xda-developers.com/showthread.php?t=2382880
Source:
http://forum.xda-developers.com/showthread.php?t=2382880

