The VERSCOMPARE keyword specifies whether version number comparison is to be performed to determine whether the list entry should be processed. Version number comparison, if requested, compares the version number of the designed list entry to a specified version number value. Version number comparison can request that the version number of the designated list entry be equal or less than or equal to a specified version number value. If the criterion is not met, the IXLLSTE request is terminated.

Additionally, when moving or writing a list entry you can specify a version number to be assigned as the initial value for the new list entry and whether the list cursor for the list containing the newly created list entry should be updated. See Understanding the List Entry Version Number.

Version number comparison is meaningful only for list structures allocated in a coupling facility of CFLEVEL=1 or higher.