F9U001 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:
F9S001 manifest for SAS Compiler and Symbolic Differentiator 9.56
F9T001 manifest for SAS Thread-safe Compiler and Symbolic Differentiator 9.57