Wait, did Siris voice just change?

Mashable 

Maybe you've noticed: Siri doesn't quite sound like Siri anymore. However, it's just enough to make you pause and ask, "Hey, Siri, did your voice change?" Occasionally, Google search trends light up with people wondering whether Siri's voice is different -- or, rather, whether the voice assistant's many voices are different. Across the internet, users are reporting that Siri's voice has turned flat, unnatural, stern, and oddly disengaged. Gone is the upbeat, more conversational tone we're used to.