Desktop mode is new and exciting.

This should have the full list; it's not a ton of changes, which speaks to how perfected Android has become.

https://android-developers.googleblog.com/2026/06/Android-17...

Ah, right I forgot they are discontinuing ChromeOS. Makes sense that current Android releases are focused on getting the Android laptop experience on par

Edit: not discontinued but 'merge with Android' https://en.wikipedia.org/wiki/ChromeOS

New garbage collector could be pretty big.

But some of the garbage collector changes are also rolling out to older Android versions through a Play System Update.

https://android-developers.googleblog.com/2026/06/Android-17...

I'm not sure though if GrapheneOS gets mainline modules at all (most likely not).