FAQShop.com : Can Two Primary Sites at Different Service Pack Levels Share the Same Domain?

Can Two Primary Sites at Different Service Pack Levels Share the Same Domain?

I want to set up a second Primary site within 1 domain. The current site is SMS2.0 with SP2 and the new site will be SMS 2.0 with SP4. Because the 2 sites share the same domain controllers I’m wondering what will happen with the clients on the old site. Will they be upgraded with the latest Service Pack or are the Logon Points not upgraded?

Contributed By: Hans Schefske [MVP SMS]
Two Sites which share Logon Points all must be at the same version of SMS (i.e. SP4), otherwise you’ll run into client component mismatches, which will leave your clients pretty much useless until their SMS Site is upgraded and the new component versions reach the clients.

So you will have to upgrade your SP2 site to SP4, or leave your new Site at SP2.

This behaviour changes with the following Post SP4 Hotfix, as detailed in Microsoft Knowledge Base Article 811378 'SMS: Client Issues If Hotfix Is Not Installed on All Sites That Share Logon Points'