D5S001 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:
D5M001 manifest for SAS Environment Manager Mid-Tier 2.5_M2
D5N001 manifest for SAS Environment Manager Library Module 2.1_M2
D5P001 manifest for SAS Environment Manager Server Module 2.1_M2
D5Q001 manifest for SAS Environment Manager User Module 2.2_M2
D5R001 manifest for SAS Security Administration Module 2.3_M2