In some instances it may be recommended/required to use the 2014 product release instead of the 2015 product release, however the licenses in your current LAC are only for version 2015.
Will you require a 2014 license be added to your LAC or can you use the 2015 license on GeoMedia / GeoMedia WebMap 2014?
GeoMedia and GeoMedia WebMap Essentials, Advantage and Professional version 2014 are able to use a 2015 license.
There is no requirement to have a license specific to 2014 if you have a 2015 license.
Please note: The 2015 release will NOT run using the 2014 license.