Github user Tagar commented on the issue:
https://github.com/apache/zeppelin/pull/2760
@zjffdu, just updated to master, and noticed versioning toolbar is
missing...
I think it's because of this PR.
We have
`zeppelin.notebook.storage`=`org.apache.zeppelin.notebook.repo.GitNotebookRepo`
in `zeppelin-site.xml` .. is there is some additional setting required now,
or perhaps Zeppelin now has to be build differently?
Thanks!---
