Miitomo is already up to version 1.0.2 in Japan and this latest update brings several new fixes for the early release of the app. DeNA has promised to continue to evolve the app through its launch period.
Cheesemeister is a well-known resident of Japan and has been translating details relating to the updates of the app. This new update will bring new friend options and more ways to view and share the answers shared by others.
It looks like Nintendo will continue using the Japanese launch as a way to beta test features for the app.