Stuck in civil3d version 16

[engineering790096]

Drawing files in civil3d 2016 show no errors till there moved to a later version. Autodesk support teams have moved our 2016 version into windows 10
so we can continue to update and create new drawings. Appears we are stuck in version 2016 witch is no longer supported.

[rkmcswain]

Is there a question here?