Alexa Plus is here but it's only supported by four Echo products as of now, and won't be supported by more than half a dozen Echo devices.

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,

Amazon's AI-enhanced Alexa+ will be coming to virtually all Echo devices made in the last five years. That doesn't bode well if you were hoping for new models.