Upgrade serviceguard can be "dangerous"?

Hi everybody!

We have to upgrade serviceguard 11.14 to 11.16, so I get PHSS_36898 patch from HP.

Is it necessary to uninstall serviceguard 11.14 before install this patch? (I think so, but i am not sure).

Do you know if is "dangerous" this kind of upgrade? Any suggestions about?

Thx in advance for your help!

>Do you know if is "dangerous" this kind of upgrade? Any suggestions about?

Should not if you read the docs :

High Availability

All is documented here:
http://docs.hp.com/en/B3935-90078/B3935-90078.pdf, pay attention to
Appendix E and read the release notes