Which Version Used?

Is there a way, from inspecting the published output of a course, to determine which version of Storyline V1 was used to produce a course?

For example, was a course produced with SL1 Update 5 or Update 6?

Like at the top of the story.html file, you see this:

<!-- Created using Articulate Storyline 1.5 - http://www.articulate.com -->
<!-- version: 1.5.1401.2415 -->

Does 1.5 mean Storyline v1, Update 5? I'm thinking it does but want to be sure . . .