Apparently you haven't installed CC2015, yet.
You can do so from the CC Desktop app.
Thanks for your response. I thought that CC automatically updates the software? Or is my issue because I may have a standard version of InDesign?
To make sure you get updates, go to the CC Desktop app. Click on the "gear" icon > Preferences > General. Sign out.Then sign in again.
You may also not be getting updates to the CC desktop app as well as of InDesign and other apps.