The different major versions have different point versions. The latest I've seen:
14.1.2
13.1.4
12.3.21.9
12.1.4.1
7.0.19
6.9.3
6.7.54.2
6.5.57
You might be on a specific version due to problems with later versions, or enhancements in that version, relating to additional products in use. What, other than plain old Aloha and EDC, do you use?