Description. This function renames the file with OLDNAME to NEWNAME. Uses the system function rename(), and so it will not rename files across file systems or volumes. If you want to copy or move a file, use the copy or move command supplied in the File::Copy module.
The latest version of the iPhone and iPad operating system is iOS 10, although there have been a few updates since its launch in September 2016. The current version is iOS 10.3.1. iOS 10 has proved popular since its release. As of 4 January 2017, just under four months after iOS 10's release, Apple reported that 76 percent of active iOS devices are running version 10, with 18 percent on iOS 9 and just six percent on iOS 8 or older versions.
The current release, iOS 9.0, was released on September 16, 2015. In iOS, there are four abstraction layers: the Core OS layer, the Core Services layer, the Media layer, and the Cocoa Touch layer. The current version of the operating system (iOS 9), dedicates around 1.3 GB of the device's flash memory for iOS itself.