iPadOS Update Options and Compatible iPad Models
You cannot pick and choose an iOS/iPadOS version. What you get is Settings > General > Software update > [All options are available here]
You need to correctly Identify your iPad model
- iPad 1 --> iOS 5.1.1
- iPad 2, 3 & Mini 1 (1st Gen) --> iOS 9.3.6
- iiPad Air, iPad mini 2, iPad Mini 3 --> iOS 12.5.7
- iPad Air 2, iPad mini (4th generation) --> iPadOS 15.8.3
- Compatible Models for iPadOS 16 --> iOS 16 and iPadOS 16 are compatible with these devices --> iPadOS 16.7.10
- Compatible Models for iPadOS 18 --> iPad models compatible with iPadOS 18 - Apple Support (IN) ---> About iPadOS 18 Updates - Apple Support (IN)
Know how to...
- Update Over-the-Air (OTA) —> Update your iPhone or iPad - Apple Support (IN)
- Update using iTunes/Finder —> Update your iPhone, iPad, or iPod touch - Apple Support (IN)