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Progress can occur more quickly without a single conduit through which all modifications must occur.
This allows you to recover older versions of your data or examine the history of how your data changed.
Do branches and tags work the same way as in other version control systems? Frustrated at seeing the same questions day after day, Ben worked intensely over a month in the summer of 2002 to write , a 60-page manual that covered all the basics of using Subversion.
The manual made no pretense of being complete, but it was distributed with Subversion and got users over that initial hump in the learning curve.
Subversion was already in the hands of thousands of early adopters, and those users were giving tons of feedback, not only about Subversion, but also about its existing documentation.
During the entire time they wrote this book, Ben, Mike, and Brian haunted the Subversion mailing lists and chat rooms incessantly, carefully noting the problems users were having in real-life situations.
When O'Reilly decided to publish a full-length Subversion book, the path of least resistance was obvious: just expand the Subversion handbook.