Release versioning for multiple end users

[jeremiahsokolowski]

This question is in reference to Atlassian Documentation: Configuring releases

Our software versions are released to differing customers based on their business needs. Not all customers are on the current version. Is there a way in JIRA to assist tracking which customer has which release?

[jeremiahsokolowski]

In other words, we have multiple con-concurrently supported releases in the wild, plus those in development.