The Microsoft Host Integration Server product team has released Cumulative Update 5 for Host Integration Server 2013.
Cumulative Update 5 contains all functional and security fixes for customer-reported issues in HIS 2013, including those fixes previously released in CU1 through CU4. We recommend you upgrade to CU5, to remain current on the latest fixes. Please test CU5 prior to deploying into production, and then raise any new issues through Microsoft Customer Support Services.
For more information on CU5, read the Microsoft Knowledgebase article posted to https://support.microsoft.com/help/4089507.
You can obtain the software from the Microsoft Download Center, at https://aka.ms/his2013cu5.
Thank you.
Microsoft Host Integration Server Team