https://wccftech.com/ios-13-3-ipados-13-3-features-changes/

Apple has released iOS 13.3 and iPadOS 13.3 beta 1. The new update is available for developers as an over-the-air update as well as through Apple Developer Center. Here are all the new features and changes in this update.

The first beta for iOS 13.3 and iPadOS was released on November 5. The build number for these updates is 17C5032d, while the update file size is around 3.28 GB for iPhone X and 3.34 GB for iPad Pro 11-inch model.