March 2024 (V15R1M4 APAR PH57736)

This version of the documentation contains minor clarifications and corrections, as well as the following significant changes relative to the previous edition:

A new section "Special consideration for 2GB-4GB addresses" has been added.
A new options field PREVEXIT has been added to the IDIOPTLM configuration-options module. For details, see Suppressing IDIXDCAP real-time analysis if prior exit RC=(PREVEXIT).
Support for the use of a new DDname IDISYSLB with the DSECT command and the IDIPDSCU utility has been added. For details, see IDISYSLB concatenation.
The section Migrating from V14.1 to V15.1 has been updated to include information about the IDIOPT1 and IDIOPT2 SMP/E USERMODs.