One good reason for using a version control system even when you are the sole developer and user is that it records the change history including meaningful check in comments. That means there is no need to clutter the code with comments that explain the evolutionary steps that brought the code into the current state.
You know, I always assumed that would be the case, and then I was in a situation where I was doing some CVS check-ins on an open-source project, and at one point one of the lead developers felt the need to make me aware of the fact that I should be duplicating my check-in comments in the changelogs, manually, because the version-control system did not automatically keep track of them in any accessible way.
Well, if I'm going to keep changelogs anyway (and yeah, I do do that), then what on earth do I need version control check-in comments for?
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