If you are working with LiveCycle Designer ES and LiveCycle Designer ES Update 1, then you can encounter compatibility issues with PDF forms in the following situation:
- The form was previously created or saved in LiveCycle Designer ES and the target version was set to Acrobat or Adobe Reader 8.0.
- The form contains one or more fragment references.
Fragment references cause the XFA template version to increase to XFA 2.6. Fragment references are the only LiveCycle Designer ES feature that does this. The same form without fragment references would not have migration problems.
- The form contains script variables that have conflicting names.
These scripts may break if you resave the form in LiveCycle Designer ES Update 1 and then open it in Acrobat 8.1 or later.
- The form is opened and saved in LiveCycle Designer ES Update 1.
LiveCycle Designer ES Update 1 writes sourceBelow = updatein the XFA template because the version of the template that is used in the target version is not equal to the version that is used in the form. After you save the form in LiveCycle Designer ES Update 1, some scripts may break when the form is opened in Acrobat or Adobe Reader 8.1.