https://support.microsoft.com/en-us/topic/hotfix-kb2889898-for-office-web-apps-server-2013-october-14-2014-wacserver-x-none-msp-f15709ba-402c-48c6-afad-b5629c010d5d
Hotfix KB2889898 for Office Web Apps Server 2013 October 14, 2014 (Wacserver-x-none.msp) -...
Describes the issues that are fixed in the Office Web Apps Server 2013 hotfix package that is dated October 14, 2014.