We have native libraries in our app specific to ICS, JB & Kitkat. Bundling all libraries increases app size. We are trying to support devices from Kindle Fire HD (Second gen on-wards.) Did the Kindle Fire HD (Second gen ) get updated to Fire OS 3.0? Will it eventually get updated to Fire OS 4.0 ? Is there a dashboard to see the different Fire devices and latest OS version on them? Can we target devices based on OS version ?