Add documentation on how to upgrade your Metabase instance

[salsakran]

Can't find anything in the docs, and the question has come up a few times.

[SonamorN]

Yes I second that. I just came to look for it! Please add information on how we can stop the current metabase instance without losing any data and replace the old version with the new one.

[marketingnerds]

Assuming you're not using EBS but for those who are:

http://www.metabase.com/docs/latest/operations-guide/running-metabase-on-elastic-beanstalk.html#deploying-new-versions-of-metabase

[salsakran]

also for posterity, if you're using heroku - http://www.metabase.com/docs/latest/operations-guide/running-metabase-on-heroku.html#deploying-new-versions-of-metabase

[key88sf]

Version number for the EB upgrade is wrong.

Web page:
http://www.metabase.com/docs/v0.18.0/operations-guide/running-metabase-on-elastic-beanstalk.html#deploying-new-versions-of-metabase

Error: The download link on that page is pointing to the 0.17.1 ZIP file.