Improved snap points for circle and arc center points, as well as better parallel and perpendicular displays. Minimum System Requirements
A completely rebuilt tool providing more control over how data (like component quantities) is exported from models. SketchUp Pro 2016 Free Download (v16.0.19911)
LayOut projects became "web-friendly," referencing files stored in Dropbox, Google Drive, or Trimble Connect. Improved snap points for circle and arc center
Users could reload models downloaded from the 3D Warehouse as references, allowing them to update automatically when changes were made. " referencing files stored in Dropbox