M8Z004 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:
M8X003 manifest for SAS Scalable Performance Data Server 5.5
M8Y004 manifest for SAS Scalable Performance Data Client 5.5
R3I001 manifest for SAS Threaded Kernel Driver for SAS Scalable Performance Data Server 5.5