AutoCAD 2018 – why did the DWG format change?

In my review of AutoCAD 2018, I had this to say about AutoCAD 2018’s changed DWG format:

Why does AutoCAD 2018 need a new DWG format? It probably doesn’t. The 2013 DWG format is capable of holding pretty much anything you want… Although Autodesk cites performance reasons with certain drawings, I strongly suspect the new DWG format was introduced purely to make life difficult for competitors, and to encourage wavering customers to stay with Autodesk for fear of losing compatibility. In other words, it seems likely this is an anti-competitive change rather than a technical one.

In a recent blog post, highly respected Swiss-based Autodesk development and research person Kean Walmsley had this to say on that subject:

The main reason for the break in compatibility is some longer-term work that’s going on inside the AutoCAD codebase. For now this is really only surfacing … Full post

BricsCAD V17 – the best AutoCAD upgrade in years?

I’ve been evaluating BricsCAD for a few years now, and have been looking at it pretty seriously as a DWG-based LISP-compatible AutoCAD alternative for a year or so. A couple of weeks ago, I flew to Munich for the Bricsys International Conference (at Bricsys’ expense – see the Legal page for disclosure) where I learned quite a few things I had failed to notice during my own evaluation of V17. As you may have noticed, I can be pretty hard-bitten and cynical about what CAD companies have to say about their products, but I came back impressed.

The conference and the product itself are not free of flaws, but I have to say the progress Bricsys has shown in developing the BricsCAD product is really quite astonishing. The rate at which serious, worthwhile-to-customers improvements have been made to BricsCAD over the last few releases is huge. Some of … Full post