As of today, the provided link
redirects to the Ansys start page. The latest ANSYS_aaS Toolbox I could get is 1.1.9, which officially works until Matlab R2018b. I couldn't get it to work with newer releases and also can't downgrade my Matlab release because I'm using some functionalities of newer releases. Is there any follow-up on this? Has Ansys aaS been discontinued?