I did research this a few years back because I needed it! But I missed it! Since 2009! Thank you so much for telling me!! Or is this simply the Mandela Effect

I did research this a few years back because I needed it! But I missed it! Since 2009! Thank you so much for telling me!! Or is this simply the Mandela Effect and xattrs didn't exist in the universe I've been living in, and I've jumped? haha.