I really hope they worked on some of the Doze features and the calendar notifications that were ruined in Nougat.

I was not happy with Doze in L and M either. I keep an older pre-Doze Android phone next to my bed so I can get urgent notifications.

I cant agree more. It's so frustrating when the communication device in my pocket fails at communication. Waiting 8 hours to get a push gmail notification is absurd.

Could you expand on this please ? Maybe it is because I use Google services, I never encountered any issue with Doze.

My phone is on do not disturb all night, but my starred contacts can message me without any issue.

When is Android Studio 3 comming out?

The blog post says you can get it now from the cannary channel.