Draftsight 2020 dasn´t work on osx el Capitan

Hello, I´m an User of Draftsight 2019 beta on Mac OSX el Capitan. I was very happy with Draftsight and I want to use it again. My licenze was expeired and the 2020 is not supportet on osx el Capitan. I can´t install osx High Sierra on my macbookpro because too old for it. is it possible to have the release 2019 yet another year ?