Last Version

Hi!
I would like to know what is the last version of iRealPro for OS X.
I have OS X El Capitan 10.11.6. and iRealPro Version 2019.6 (190603)
I've read that iReal for OS X had a recent update, but I don't see any update.
Is OS X 10.11 no longer supported?

Thank you
cronban

So, I read in other threads that iRealPro has been updated several times... I've just seen in the irealpro.com website that the program is no longer compatible with MacOS 10.11.
So sad.