It looks like as far as back R2008b, it was CCS 3.3. From the link you gave, it looks like CCS 3.1 was supported in R2007b. So I'm guessing R2008a is the only other possible release where CCS 3.1 could have been supported.
You can also select a web site from the following list
How to Get Best Site Performance
Select the China site (in Chinese or English) for best site performance. Other MathWorks country sites are not optimized for visits from your location.