Microsoft’s new personal digital assistant will be included in the Windows Phone 8.1 update, and, as The Verge reports, will replace the built-in Bing search functionality. “Cortana will animate when it’s speaking or thinking, forming a personality not dissimilar to Apple’s Siri,” The Verge reports, citing sources. And, “Just like Siri, Cortana will also allow Windows Phone users to set how they want to be addressed by the voice-activated assistant.”