I don't remember there ever being a version 1.7 of JIRA, it went to version 2 quite quickly. There weren't installers for it around those versions either.
I'm afraid I suspect you're talking about something other than JIRA, but you haven't told us what.
I have multiple projects that use variations of the same base workflow. The variations depend on the requirements of the project or issue type. The variations mostly come in the form of new statuses ...
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