Github user Leemoonsoo commented on the pull request: https://github.com/apache/incubator-zeppelin/pull/430#issuecomment-156786279 When Zeppelin releases a new version, documentation will be build from master brach under 'docs' directory and deployed into https://svn.apache.org/repos/asf/incubator/zeppelin/docs/[version]. And website (gh-pages branch) will add a link to the new version of documentation. So 'docs' in master branch will only need documentation for the current version.
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