Answer: "Support for the following small form factor modules is discontinued starting with the 4.20 release. If you install 4.20 you will no longer have access to these modules: CPR-1001A&B, CPR-2001A&B, CPR-2002A&B, EDM-1001A&B, EDM2001-A&B, FBR-1001A&B, FBR-2001A&B, XFP-1001A&B, XFP-2001A&B"
The last supported release for this card family is 4.16 which is also located on the CSC.