.. include:: upgrade.rst.inc

Examples
~~~~~~~~
::

    # Upgrade the borg repository to the most recent version.
    $ borg upgrade -v /path/to/repo
    making a hardlink copy in /path/to/repo.before-upgrade-2016-02-15-20:51:55
    opening attic repository with borg and converting
    no key file found for repository
    converting repo index /path/to/repo/index.0
    converting 1 segments...
    converting borg 0.xx to borg current
    no key file found for repository