No, I’m saying you’d support older versions of make in your project and use docker images in your CIb pipeline to test each of those supported versions. If you’re not using any 4.4-specific features, 4.2 (20.04) and 4.3 (22.04) would probably work. So you’d have a docker container for every OS that you’re officially supporting (or at least every version of make that supported OSes use).