If you are a Yahoo small business customer, you’ve probably received a notification announcing that Yahoo will be changing its name to Luminate, effective November 8th, 2015. They are trying to make the change as seamless as possible for their customers. If you have a Domain or have purchased any other services through Yahoo, you may want to reference their checklist to determine if there is anything you need to do to prevent a disruption of service.
Links:
Checklist: https://help.yahoo.com/kb/SLN26784.html
Q&A: https://help.yahoo.com/kb/yahoo-small-business/SLN26667.html?impressions=true