Soon IMS Version 15 will be implemented.
Is there any compatibility problem with that version and CA-Allocate 12.5 ?
Release : 12.5
Component : CA Allocate DASD Space and Placement
Ca Allocate will support IMS V15, however you need to have at least these PTFs installed: RO62115, SO00154, SO00640, RO97974, SO03669, SO03749, SO05348 and SO06593.
In other words, if you are current GA PTF level, you should have no problem with IMS V15 upgrading.