The Dynamic System Update allows Android Q devices to temporarily install a Generic System Image (GSI) to try a newer version of Android on top of their current Android version.

What is new in Android Q?

With Android Q, we’ll update important OS components in the background, similar to the way we update apps. This means that you can get the latest security fixes, privacy enhancements and consistency improvements as soon as they’re available, without having to reboot your phone.

What does Q stand for in Android?

As for what the Q in Android Q actually stands for, Google will never publicly say. However, Samat did hint that it came up in our conversation about the new naming scheme. A lot of Qs were tossed around, but my money is on Quince.