Last week Autodesk presented a webinar in which they discussed the new features of Infraworks 2019.3 and Civil 3D 2019.2. I thought I'd post a link to the recording just in case you missed it. I really like the profile enhancements for Infraworks and the transparent command enhancements for Civil 3D.
The first 5 minutes are filled with silence as they waited for viewers to login. So you can fast forward to minute 5:00 to begin the introductions and formal announcements. If you prefer to get beyond the introductions and begin the actual demo then fast forward to minute 11:50.
Just click this link: What's New in Infraworks 2019.3 & Civil 3D 2019.2