After announcing yesterday that Google Reader as a platform would be going the way of the dodo on July 1st, it appears Google has already started pulling the necessary plugs: the official Reader app has been removed from the Play Store. While you will still be able to see the Reader app on the Play Store if you've got it installed on one of your devices, open up an incognito window in Chrome, and you'll be directed to the generic 404 page when you attempt to load the URL.
Open GApps can now optionally install Google Assistant
These are all the apps and services that will work with Google Home [Continuously Updated]
[Update: May enable Google Assistant on non-Pixels] Google App v6.13 "alpha" appears with support for Payments on Google Assistant, and prepares enhanced Offline Search, Lite Mode, Recent page, and much more [APK Teardown + Download]