public void setLastSuccessfullyAppliedConfigurationsVersion(Long lastSuccessfullyAppliedConfigurationsVersion) {
        this.lastSuccessfullyAppliedConfigurationsVersion = lastSuccessfullyAppliedConfigurationsVersion;
    }
<p>
The version number of a configuration specification that was successfully applied for an instance group last
time.
</p>

@param lastSuccessfullyAppliedConfigurationsVersion
       The version number of a configuration specification that was successfully applied for an instance group
       last time.
aws-java-sdk-emr/src/main/java/com/amazonaws/services/elasticmapreduce/model/InstanceGroup.java