First, download and install the iPadOS 16.3 beta 1 profile using your Apple developer account.  After that, download and install iPadOS 16.3 beta 1 like any regular iPadOS update. Open Settings → General → Software Update → Download and Install. 

To help you, here is the complete list of supported iPads and the steps to download and install iPadOS 16.3 beta 1. Take a look.

List of iPads compatible with iPadOS 16 How to download iPadOS 16.3 developer beta 1 on iPad How to install iPadOS 16.3 developer beta 1 on iPad

iPadOS 16 compatible with iPads

iPad Pro 12.9-inch (5th gen)  iPad Pro 11-inch (3rd gen)  iPad Pro 12.9-inch (4th gen)  iPad Pro 11-inch (2nd gen)  iPad Pro 12.9-inch (3rd gen)  iPad Pro 11-inch (1st gen)  iPad Pro 12.9-inch (2nd gen)  iPad Pro 12.9-inch (1st gen)  iPad Pro 10.5-inch iPad Pro 9.7-inch iPad (8th gen)  iPad (7th gen)  iPad (6th gen)  iPad (5th gen)  iPad mini (5th gen and later)  iPad Air (4th gen)  iPad Air (3rd gen) 

Before you begin: 

iPadOS developer betas 1 are buggy. To keep your current data safe, make sure to backup your iPad. This may be helpful in unfortunate circumstances.  It would be best to install iPadOS 16.3 beta 1 on a secondary iPad (if available).  Keep your Apple developer account ($99/yearly) details like email and password ready. You will need the account to download the iPadOS 16.3 developer beta 1 profile. 

How to download iPadOS 16.3 developer beta 1 on iPad

You have successfully installed the iPadOS 16.3 developer beta 1 profile. Next, the steps to download and install the latest developer version of iPadOS are the same as any regular version. 

How to install iPadOS 16.3 developer beta 1 on iPad

Enjoy! This is how you can download the iPadOS 16.3 developer beta 1 on your iPad. Plus, if you cannot download it over the air (steps above), you may use Finder on Mac for the same. Take it for a test drive and let us know the exciting finding of this iPadOS in the comments below. More helpful posts:

How to download iOS 16 developer beta on iPhone  Downgrade iOS 16 beta to iOS 15 How to install tvOS 16 developer beta on Apple TV