Greetings everyone, Something happened today that was REALLY strange.

I was on the Minecraft Launcher and it showed a new update called the "Phantom Update" I was confused because i didn't know they were adding a new update, and the title is super creepy





And when i started the game nothing was different but when i made a new world ghasts spawned everywhere and then my Minecraft crashed and the update was gone




Have any of you seen something like this????? because i really want some answers.