What is the fine-grained topic of the following text: If your current build of DADiSP 6.0 is less than B18 or if your major version number of DADiSP is less than 6.0 (prior to DADiSP/2002), please contact us about updating to DADiSP 6.5. Only return the topic.
Updating to DADiSP 6.5 from older versions