We are using dot spatial library for transformation from one projection to other. We are planning to include the new release GDA 2020 projections. Is it as simple as just adding the proj string for the new projection.
Looking at the details here it looks like there is no support in proj4 for this new projection however there is a new version proj 6 which provides this support but there is no .net port available for this. Is there anyone who can guide on this.