U53021 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:
U01022 manifest for SAS Customer Intelligence Reporting Mid-Tier 6.4
U02021 manifest for SAS Marketing Automation Integration Utilities 6.4
U03022 manifest for SAS Customer Intelligence Core Mid-Tier 6.4
U04021 manifest for SAS Campaign Management Public Type Metadata 6.4
U05021 manifest for SAS Marketing Automation Launcher 6.4
U57021 manifest for SAS Customer Intelligence Logical Types 6.4
U06021 manifest for SAS Customer Intelligence Utilities 6.4
U07021 manifest for SAS Marketing Automation Extensions for SAS Customer Intelligence Studio 6.4
V35014 manifest for SAS Customer Intelligence Processes 6.4
T91002 manifest for SAS Customer Intelligence Common Public Type Metadata 6.4
T93003 manifest for SAS Customer Intelligence Common Server 6.4
U56021 manifest for SAS Customer Intelligence Common Logical Types 6.4
T92022 manifest for SAS Customer Intelligence Studio 6.4