You will need to determine which version of Community Server you are running when you want to upgrade Community Server or install the latest Community Server service pack.
You can view your Community Server version from the administrative Control Panel or from the source of one of your site’s pages.
Control Panel
If you are a system administrator for your community, you can view your Community Server version by navigating to the Control Panel. The version displays in the right sidebar.
Page Source
To view the versions from a site page, right-click on the page and select View Source. Towards the top of the file that opens, you will see a line that looks like this:
<meta name="GENERATOR" content=".../>
The content part of the tag contains your Community Server version. For example, the content value may look like this:
“CommunityServer 2008 SP1 (Build: 30610.56)”