Due to an update, the SMS has been moved to a new icon. There should be an icon on the bottom left of your screen that says Call, once you click on it, you will see Text. SMS history can be found there.
This is not a helpful option. I need to be able to see the list of current numbers/conversations and replies (they turn bold). This app is used for multiple conversations at one time and not being able to see a response come in while in a conversation is a serious problem.
So basically missing is the number/contact listing and then the reading pane like in email. This was a feature and was even listed in the instructions and there is an option for the number of items in the list under preferences. This impacts my DAILY use of this application.