If you are tracking an unreleased version, you will see that status on the top of the page.
The version name is displayed there, as the version date range.
If the version is unreleased yet, the chart will not be painted completely. You will see a vertical line for today date.
It isn't usual to log work for future dates, but JIRA allows that so we have managed it. Future log works will appear with a dash line, because we cannot ensure that there won't be more log works.