Data Management Capabilities > Managing Part Structures > Windchill Options and Variants Capabilities > Creating and Managing Enterprise-wide Definitions > Defining Global Rules for Options and Choices > Exporting the Latest Iterations of all Versions of Choice Rules
  
Exporting the Latest Iterations of all Versions of Choice Rules
Out-of-the-box, when you export choice rules, only the latest iteration of the latest version is exported.
If you want to export the latest iteration of all existing versions of the choice rules, you must set the following wt.property to TRUE:
com.ptc.windchill.option.ixb.exportAllRuleVersions=true