Open Stack

Hello,
    Is the content in https://releases.openstack.org/ is the latest?
   There are some question here, why Queens cycles is longer then Rocy cycles.
    The Rocy cycles is too shot of live, even less than six month? May
be the "estimated 2019-02-23" is a slip of pen? Should it be
"2020-02-23" ?
   Can someone tell some reason about this? Thanks a lot.





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