Upgrading
#########
-You can upgrade Bugzilla from any version to any later version in one go -
-there is no need to pass through intermediate versions unless you are changing
-the method by which you obtain the code along the way.
+You can upgrade Bugzilla from any version to any later version in one go—there
+is no need to pass through intermediate versions.
.. warning:: Upgrading is a one-way process. You cannot "downgrade" an
upgraded Bugzilla. If you wish to revert to the old Bugzilla
Before Git, we used to use Bazaar and, before that, CVS. If your installation
of Bugzilla consists of a checkout from one of those two systems, you need to
-upgrade in three steps:
+upgrade in two steps:
-1. Upgrade to the latest point release of your current Bugzilla version.
-2. Move to Git while staying on exactly the same release.
-3. Upgrade to the latest Bugzilla using the instructions for :ref:`upgrading-with-git`.
+1. Move to running from a Git checkout, while staying on exactly the same release.
+2. Upgrade to the latest Bugzilla using the instructions for :ref:`upgrading-with-git`.
See :ref:`migrating-from-bazaar` or :ref:`migrating-from-cvs` as appropriate.