Yes, they update firmware and the version is reported in the Alexa app. GPL source code for Echo devices: https://www.amazon.com/gp/help/customer/display.html?

Yes, they update firmware and the version is reported in the Alexa app. GPL source code for Echo devices: https://www.amazon.com/gp/help/customer/display.html?nodeId=201626480 https://www.amazon.com/gp/help/customer/display.html?nodeId=...