H8Y001 is a "container" hot fix that contains "member" hot fixes which will update your SAS software components.
See "What is a container hot fix?" in the SAS Hot Fix FAQ for more information on container and member hot fixes.
A manifest listing the contents of each of the following "member" hot fixes is available:
E4E005 manifest for SAS/ETS 15.1
F1H003 manifest for SAS Threaded Kernel Extensions for Econometric Time Series 15.1