+URGENT ---------------------------------------------------------------
+
+
+IMPORTANT ------------------------------------------------------------
+
+Cross-test versions
+
+ Part of the regression suite should be making sure that we don't
+ break backwards compatibility: old clients vs new servers and so
+ on. Ideally we would test the cross product of versions.
+
+ It might be sufficient to test downloads from well-known public
+ rsync servers running different versions of rsync. This will give
+ some testing and also be the most common case for having different
+ versions and not being able to upgrade.
+
+
+NICE -----------------------------------------------------------------
+
+Merge IPv6 support ***