Update CHANGELOG.md

CHANGELOG.md

@@ -4,9 +4,9 @@ This release introduces new node-discovery integration with [Consul](https://www
 See the [new documentation](https://github.com/rqlite/rqlite/blob/master/DOC/AUTO_CLUSTERING.md) for full details on using Consul and etcd.
 
 ### Upgrading
-This release uses a new database for the Raft system. As a result **rqlite 7.0 is not compatible with earlier releases**. To upgrade from an earlier version to this release you should backup your existing Leader node, and restore the database dump into a new 7.0 cluster.
+This release uses a new database for the Raft system, which should be compatible with earlier releases. However it is strongly recommended you [backup any existing Leader nodes](https://github.com/rqlite/rqlite/blob/master/DOC/BACKUPS.md) before you run 7.0, in the event there are any issues.
 
-There are also some other breaking changes in release 7.0, related to command-line arguments:
+There are also some breaking changes in release 7.0, related to command-line arguments:
 - The disco-related command-line arguments have changed to support Consul and etcd. If you wish to continue to use legacy Discovery, you can't upgrade to 7.0 -- or consider using Consul or etcd for node-discovery.
 - The command-line argument `-RaftWaitForLeader` has been removed. If you need to wait for a node to have a Leader, you should poll the `/readyz` endpoint.