QCAD pro Compatability with OSX EL Capitan version 10.11.6

Hi
I have just downloaded QCAD on an old imac with OSX El Capitan .It seems to work fine , if i purchase the most updated QCAd Pro will it work on the old iMac OSX El Capitan version 10.11.6

Yes, macOS 10.11 is still supported: