Restrictions for IMS 15 during coexistence

There are no general restrictions for IMS 15 in a coexistence environment; however, certain restrictions apply to new functions.

The HALDB support for 8-GB OSAM data set enhancement supports coexistence with IMS Version 13 systems in data sharing environments only if SPE APAR PI23918 has been applied to all the IMS Version 13 resident libraries (RESLIBS) that access the RECON data set. The minimum version (MINVERS) in the RECON data set must be 14.1 or it must be 13.1 with the CDSLID value set to 2.