NOTICE from the Microsoft Office Sustained Engineering Team
Support for Microsoft Office 2013 RTM has ended. Starting with the April 2015 release, all Office 2013 updates will only apply if Office 2013 SP1 is installed. See KB2817430 for more information about acquiring Office 2013 SP1.
The June 2015 Public Update releases for Office are now live. June 2015 Office Update Release