We are upgrading CA Harvest 13.0.3 however in the download area from support.ca.com we are not able to locate binaries.
The installation files for the Windows and Linux (as well as HP_IA platform, Solaris, ZLinux, Mac, and Z/OS) are available from the download center at support.broadcom.com
Login with your CA credentials and go to "Enterprise Software".
Select "Product Downloads".
Filter by "software change manager" in the search field to get a list of related Harvest downloads.