The most recent update was in 2017 as the team stopped developing the free version. It doesn't have advanced features for 3D modeling and rendering, which makes construction easier or more accurate. SketchUp Make is the free version of Sketchup Pro but is not as robust with features.
Does anyone know where I can find a version of SketchUp Make 2017 free? I only need it for some personal projects - planning my decking project and building a workshop in my garage.