+Upgrading
+=========
+
+When you upgrade Open vSwitch from one version to another, you should
+also upgrade the database schema:
+
+1. Stop the Open vSwitch daemons, e.g.:
+
+ % ovs-kill ovsdb-server.pid ovs-vswitchd.pid
+
+2. Install the new Open vSwitch release.
+
+3. Upgrade the database, in one of the following two ways:
+
+ - If there is no important data in your database, then you may
+ delete the database file and recreate it with ovsdb-tool,
+ following the instructions under "Building and Installing Open
+ vSwitch for Linux".
+
+ - If you want to preserve the contents of your database, back it
+ up first, then use "ovsdb-tool convert" to upgrade it, e.g.:
+
+ % ovsdb-tool convert /usr/local/etc/ovs-vswitchd.conf.db vswitchd/vswitch.ovsschema
+
+4. Start the Open vSwitch daemons as described under "Building and
+ Installing Open vSwitch for Linux" above.
+