D4Z019 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:
D5A010 manifest for SAS Risk Governance Framework Server 7.4
D5B018 manifest for SAS Risk Governance Framework Mid-Tier 7.4
D6X018 manifest for SAS Risk Governance Framework Administrative Tools 7.4