Apple’s upcoming iOS 8.1.3 update should arrive next week, reports suggest. Sources say that some sort of iOS 8 update, whether beta or public, will go live on Tuesday or Wednesday.
A Sudden spike this week in iOS 8.1.3 devices in tracking logs could points to a larger number of Apple workers testing the firmware, a common sign that a release is about to go public. Some v8.1.3 devices are active outside of Apple; these may be a mix of engineers/carrier partners doing legitimate field testing, select developers, or people using fake identifiers.
As for the content of the update, that remains unknown. Given the version number, it’s likely to target bugs and security holes, rather than make any feature changes.