iTunes is showing iOS 9.2.1 as newer version for iPad only. It's running iOS 9.2.1.
This is new... After plugging in my iPad Air 2 (iOS 9.2.1) and then opening iTunes (12.3.2) the software update window pops up stating there's a newer version available - 9.2.1. And yet my iPad Air 2 and iPhone 6 Settings>Software Updates both show software is up to date.
iTunes also had issues connecting (could not sync) with iPad, as well as the iPad asking if I trust the computer it's connected to. I've had this iPad and iMac for months, already connected and synced/backed up many times.
iMac (Retina 5K, 27-inch, Late 2015), OS X El Capitan (10.11.1), 32 GB Memory