In a way this may not be considered a problem but I think it would be useful for first time users to be aware of. I recently got a Matlab license for a project for a project and was going to download the software from MathWorks and realized that I didn't know whether k-Wave Toolbox was compatible for R2020a or R2020b. Since I didn't know I made the commonsense choice to get R2019b since presumably k-Wave 1.3 was developed using this. So far it has worked beautifully and any examples I've tried has worked.