It's really interesting. They're describing the entire apparatus that's been built up to switch from ObjC to Swift and allow them to coexist using multistage co

It's really interesting. They're describing the entire apparatus that's been built up to switch from ObjC to Swift and allow them to coexist using multistage compilation, and the recompilation of IR code to target newer devices (or for a few other enumerated reasons). As someone who's been working on the platform for several years before Swift was announced and got to watch it all unfold, it's pretty incredible to see it described so succinctly. And definitely worrying as to the future direction of the work I've done. Could you help us know any similar software development ecosystems that have been similarly patented, or anything else that might indicate how it could play out?