Reinstall Absynth 5.3.1?

When updating my installation, it installed a version 5.3.4 beyond where my OS (El Capitan) will run it. I get a not compatible error when running standalone. I need to reinstate version 5.3.1

Any suggestions as to how I do that? I am able to access the reinstall tab on Native Access but don't think I can choose an older version

And why isn't there an OS check when installing the software????
thx
Wolly

 

Go here... top of the list should be 5.3.1 , download and install and it should say you are trying to overwrite a newer version... say yes... at least that is the way the installers work on Windows.

https://www.native-instruments.com/en/support/downloads/update-manager/?q=Absynth&t=updates