No, this applies only to APIs, which are documented as such. The users of such APIs might have a certain expectation of long-term support. This is talking about

No, this applies only to APIs, which are documented as such. The users of such APIs might have a certain expectation of long-term support. This is talking about documentation of the device which is sold, the software equivalent of providing schematics to eletrical devices. Which for a long time was quite common. You could buy stereo amplifiers with complete schematics. They don't create an obligation that future products have the same schematics, their purpose is solely for the repair of the device sold.