Just a heads-up...
Apparently, Amazon's pushing the
latest software update to devices gradually. This is done automatically when your Echo's idle.
You can check the device's software version in the Echo app by clicking on Settings. Next, select the top menu choice (name of your Echo). Then scroll down to Echo Software Version. The latest version is 2171 (from 2100).
Mine hasn't updated yet. I'd be interested to know if anyone's received it and would like to know if Amazon informs us (via notification in the app, perhaps?) of the specific improvements/bug fixes.