Google

The first device manufacturers to commit to shipping the new version of the operating system are Microsoft, Lenovo, and Samsung. In a post on his website, Popescu said that 12L would ship to devices from the three companies later this year.

The P12 Pro tablet can run a version of the operating system that is in a public test. It's not clear which devices from the other two companies will get the update, but it's likely that Microsoft's Surface Duo 2 is one of them.

Android 12L’s new notification shade.
Google

Better use of bigger screens is one of the features of the 12L. There is a notification shade that separates quick tiles and notifications into separate columns, a two-column layout for settings and the setup process, and a taskbar that lets you select apps to run side-by-side.

You can see how it works.

12L is a dedicated new version of Android that will only come to certain tablets and foldable devices, but it sounds like future mainline Android releases will include itsUI improvements.