We've just released Android Studio 0.2.0!
This release contains a number of new features and bug fixes. Read the release notes carefully
since there are some important notes; in particular, your projects will need to be updated to reference gradle 0.5.+ instead of 0.4.
Due to the large number of changes we're also not updating from 0.1.9 with a patch; you have to install a new bundle.Edit
: There is now a patch from 0.1.9 to 0.2.0. If you go that route, you won't get the new Android Support Repository
installed automatically. Since all the templates now use it, you'll have to install it manually.
For the release notes and download links, visithttp://developer.android.com/sdk/installing/studio.html
Some additional information and screenshots here: http://tools.android.com/recent/androidstudio020released