In the documentation
https://techdocs.broadcom.com/us/en/symantec-security-software/identity-security/privileged-access-manager-server-control/14-1/implementing/install-unab-endpoint/install-and-customize-a-unab-host/how-to-implement-unab.html
openssh versions prior and post openssh 3.7 are mentioned.
openssh 3.7 is a pretty old version. Does this mean the most modern versions of openssh are not supported ?
CA PAM SC UNAB 14.X, PIM UNAB 14.X and 12.9 and CA ControlMinder 12.81
There is no direct dependency in UNAB on sshd version, though some ssh versions do have quirks that required adjusting pam_uxauth module behavior/logic (e.g., on AIX, Solaris, SLES).
Information in the documentation section is valid.
Generally, one can just update sshd and expect everything to work as usual. In the unlikely case, that problems are encountered, a defect needs to be opened in order to investigate their causes and possibly make adjustments.