What is the difference between DVCS systems?

Posted by Stephen on Stack Overflow See other posts from Stack Overflow or by Stephen
Published on 2010-03-29T13:45:47Z Indexed on 2010/03/29 14:03 UTC
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dvcs

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fossil

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bazaar

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mercurial

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git

What is the difference between DVCS systems?

Seriously, wikipedia doesn't cover it well, and I read an article on HN recently comparing git and bzr in some detail, but the author admitted knowing little about mercurial, and the other options didn't get mentioned. (I'm happily using fossil on small win/mac/Linux projects)

Please restrict answers to the DVCS aspects of the tool, e.g. The basic unit of vc in hit is the repository- in bazaar it is the branch(http://unspecified.wordpress.com/2010/03/26/why-git-aint-better-than-x/). bugtrackers and wikis are nice, but I'm really interested in the tools themselves, rather than any extras.

Unfortunately SO demands a single 'right answer', so I'm making the question community wiki in the hope that users will contribute their knowledge.

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