Amazon rolled out an automatic upgrade to its Alexa virtual assistant. Alexa+ has new voices and new features.

Amazon's latest upgrade to Alexa uses AI to better understand and respond to commands, but its increased awareness of context and personality brings quirks that could delight or annoy users.

Using Echo Studio speakers and a Fire TV streamer, Alexa Home Theater offers a flexible, affordable way to get Dolby Atmos sound at home without committing to a large, expensive soundbar system.

Alexa+ has been rolling out to everyone with a Prime membership, even if you didn’t ask for it. Here’s how to change it back.