If you buy software just skip this post. If you make software and need to maintain it, here is a very brief overview of what you might be using (or should be using) to maintain your code in the proper way, track and fix bugs and work with production and testing environments, without messing around. In one word, Git.
In this pdf I summarize what you would like to do and what really happens behind the scenes. Enjoy!
Before you go
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