Abandonware
Eventually, if you think hard about it, all software will become abandonware. Like all human beings have to die.
I don’t mean that as an insult, just a reality check for all the tech people out there. OK, you might say that Voyager probce code is still running after years of service and deep into interstellar space, but… Once all that code has served its purpose, guess what? It will wander aimlessly over the vast universe forever and freeze to a electronical death of sorts.