Amazon is bringing the new AI-powered Alexa Plus to a wide range of its existing Echo devices — but the upgrade will skip many of the earliest models. The majority of the company’s first-generation Echos won’t get support, according to the Alexa Plus FAQ page, though Amazon says they will continue to work with the standard Alexa.

Amazon has unveiled Alexa Plus and while it’s rolling out to Echo Show smart displays first, most Echo smart speakers will also be supported.

Alexa Plus will start rolling out next month in early access. It's an opt-in service and won't be available to everyone through an over-the-air update in March.