We have multiple teams, each with their own Jira project. I'd like to add tasks from each of their projects to be tracked with a single version. Has anyone done that?

[Robin Raben]

This question is in reference to Atlassian Documentation: Adding an Issue to a Version

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[Karl Barger]

We have Teams working from different projects that were able to associate their Features to a single "Enterprise Release" that was defined in a different project. That seems to contradict what the article says.

[Deleted user]

The JIRA Version belongs to a single project on which it can be added to the issues of that project alone. So you can say the issue ABC-1 with v1 is the same issue with DEF-1 v1. 

Perhaps if you can elaborate more on what you want to accomplish so that we can suggest other alternatives.

[Nic Brough -Adaptavist-]

The difficulty is that (ABC) v1 is a different version to (DEF) v1, despite having the same name.