Github user Leemoonsoo commented on the issue: https://github.com/apache/zeppelin/pull/1844 `VFSNotebookRepo` can be configured to use [other filesystems](https://commons.apache.org/proper/commons-vfs/filesystems.html) instead of local filesystem. Those user might be confused when (default) notebook repo is changed to `GitNotebookRepo`. How about add an item in [upgrade.md](https://github.com/apache/zeppelin/blob/master/docs/install/upgrade.md#upgrading-from-zeppelin-06-to-07) for this change?
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