The function returns a TEXT with the name of the earliest unreleased version in the current issue's project.
earliestUnreleasedVersion() #Output: Text
The function returns a TEXT with the name of the earliest unreleased version among projects in argument projects.
Returned versions may either released or unreleased. Arguments projects is a comma-separated list of project keys or project names.
earliestUnreleasedVersion(text projects) #Output: Text