> Those are both still VMs? Latest android looks like ART + JIT, but you can't AOT a JIT (that's the whole point of doing it Just In Time)? Dalvik was a JIT VM

> Those are both still VMs? Latest android looks like ART + JIT, but you can't AOT a JIT (that's the whole point of doing it Just In Time)? Dalvik was a JIT VM. Then, for Android 5.0 (Lollipop), Android moved to AOT compile code (On installation and ROM upgrade, which is why if you ever updated Android then, you'd be sitting and waiting for a few minutes while Android optimized apps). Then recently (I don't remember if it was for Marshmallow or Nougat) Android went back to a JIT VM on install, followed by a background AOT compile. This way installation goes faster (it doesn't have to compile everything right away), ROM upgrades go way faster (you don't have to AOT compile tens to hundreds of apps before being able to use your phone), and Android can do guided optimization during AOT (it knows which hot-paths were taken).