The function of this webpage is to show new changes to the program. If there are new functions or changes, they will all be displayed here. If your News button is red it means you have new messages. The parentheses will tell you how many new messages there are.

If you look at line number 6 under the Create/Read column, the black text tells when the message was created, and the green text tells when you first read the message.
Now if you click on a subject, it will redirect you to the module that will display the message. Click on How to Change the Purchase Order Vedor to see the details.