Ideate Explorer for Revit is designed to work in conjunction with its corresponding Revit version. For example, Ideate Explorer for Revit 2018 will work with Revit 2018. Ideate Explorer 2016 works with Revit Architecture 2016, Revit Structure 2016, and Revit MEP 2016.
Same as Autodesk Revit.
Occasionally Ideate Software will publish updates. You can determine whether your current version is up to date by going to the Help menu and selecting 'Check for Updates'. This will return the currently installed version and provide access to the Ideate Software download page for the newest versions.
Thank you for taking time to inform us about a bug or feature request.