public String getLastUpdateReason() {
        return this.lastUpdateReason;
    }
<p>
The most recent reason for updating the customizable properties of a security control. This differs from the
<code>UpdateReason</code> field of the <a href=
"https://docs.aws.amazon.com/securityhub/1.0/APIReference/API_BatchUpdateStandardsControlAssociations.html">
<code>BatchUpdateStandardsControlAssociations</code> </a> API, which tracks the reason for updating the
enablement status of a control. This field accepts alphanumeric characters in addition to white spaces, dashes,
and underscores.
</p>

@return The most recent reason for updating the customizable properties of a security control. This differs from
        the <code>UpdateReason</code> field of the <a href=
        "https://docs.aws.amazon.com/securityhub/1.0/APIReference/API_BatchUpdateStandardsControlAssociations.html"
        > <code>BatchUpdateStandardsControlAssociations</code> </a> API, which tracks the reason for updating the
        enablement status of a control. This field accepts alphanumeric characters in addition to white spaces,
        dashes, and underscores.
aws-java-sdk-securityhub/src/main/java/com/amazonaws/services/securityhub/model/SecurityControl.java