Is Captivate still supported?

Hi, I’m a long-time user of Adobe CC, and my organization is trialing Captivate. I’m running version 11.8.0.586, and was pretty shocked at the state of it. When I open it and run it on a 4K monitor, the whole app seems blurry. When I create a New Blank Project, the default resolution list seems to be from about 2015: Am I doing something incredibly stupid, or is Adobe charging a subscription model for software that isn’t supported anymore?