E3Y021 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:
E3W003 manifest for SAS Workload Orchestrator 9.46
E3M015 manifest for SAS Workload Orchestrator Threaded Kernel Daemon 9.4
D9W013 manifest for SAS Threaded Kernel Grid 9.4_M6
E3N004 manifest for SAS Workload Orchestrator Threaded Kernel Administration Utility 9.4
G5Q006 manifest for SAS Threaded Kernel Grid 9.4_M7
E5U011 manifest for SAS Threaded Kernel Secure 9.4_M6