I want to know the answer to the following question:
How long did the Mac Plus remain in production, unchanged?
All the background I'm provided with is that "In September 1986, Apple introduced the Macintosh Programmer's Workshop, or MPW, an application that allowed software developers to create software for Macintosh on Macintosh, rather than cross compiling from a Lisa.". Is that enough to answer the question?
Answer: no