Files within OS X El Capitan indicate that the upcoming iPad mini 4 will support full split view multitasking, suggesting that its internal specs will be on par with the iPad Air 2.
Developer Hamza Sood and 9to5Mac first located an OS X El Capitan resource file from the Safari 9 browser that depicts an iPad mini with two apps side-by-side. This is exactly how the new split view features in iOS 9 works.
Safari 9 brings a new responsive design mode, which gives developers an easy way to test different website layouts. The feature also allows developers to simulate a split layout on an iPad mini 3. However, the iPad mini 3 will not support split view, offering further proof that the iPad mini 4 is likely to support this iOS 9 feature.
In order for the iPad mini 4 to support split view, it will need to have internal specs that match or exceed those of the iPad Air 2. It is likely that those specs will include Apple’s A8X or A9 processor and 2GB of RAM.
Specs for the iPad mini 4 have not yet been confirmed, however, rumours suggest that it will be focused on the external design of the device. It is expected to look similar to the iPad Air 2, with a slimmer 6.1mm body and iPad Air 2-style design features.