I have been looking into Aspose.CAD. It is very promising and looks to work almost perfectly.
I do still have one question about the supported DWG versions. According to the product page, you currently only support DWG until version DWG 2013/2014/2015/2016. Any plans on supporting the latest DWG 2018/2019/2020/2021/2022/2023 version in the near future?