The new Files app brings all your files together. You can easily browse, search, and organize all your files in one place. And there’s a dedicated place for your recent files. Those on your iPad as well as in apps, on your other iOS devices, in iCloud Drive, and across other services like Box and Dropbox.

The new Dock.

The new Dock is a foundational change for iPad. It’s now available from any screen. So with just a swipe, you can open and switch apps instantly. And you can customize it with more of your favorites. Apps you‘ve opened recently and apps that are currently open on your iPhone or Mac appear in the right side of the Dock.

Multitasking.

iOS 11 makes it easier and more intuitive than ever to multitask. You can open a second app right from the Dock, and both apps remain active in Slide Over as well as Split View. You can drag the second app in Slide Over to the left. And you can get back to your favorite App Spaces in the redesigned App Switcher

Drag and Drop.

Drag and Drop comes to iPad, allowing you to move text, photos, and files from one app to another. And because it’s been designed for the large Multi-Touch display of iPad, moving them around is pure magic. You can touch and move just about anything — or things — anywhere on the screen.

Conclusion

These are just a few of the many features available on iOS 11. you can visit this link to learn more about iOS 11.