Working with old code? Here’s everything you need to know about managing and improving legacy systems.
What is software? First and foremost, it’s code, but we can also think of it as a living, ever-evolving thing, because it’s written by people. In the same way that every one of us has our past experiences and memories, software is built over many years, and what might have been there before – its “past selves” – become known as legacy code.
Legacy code is in almost every software project. And in its worst state, it can stifle innovation, prolong a development lifecycle, and affect engineering morale.