Dear Parag.dabhade ,
The cr7 package is used to support 9.2 and some previous versions of gateway. After 9.3 is release, new package of cr7 released too to support 9.3 and the name of the install files changed, but the document is not updated yet. As the name suggested, now the portal integration files support gateway from 8.4 to 9.3
Regards,
Mark