A4T001 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:
A4B001 manifest for DataDirect ODBC Driver for Amazon Redshift 9.4
V52006 manifest for SAS/Secure SSL 9.4_M3