diff -r d5d665f6615a -r 27527d8cff5c mercurial/wireprototypes.py
--- a/mercurial/wireprototypes.py	Wed Mar 28 14:05:29 2018 -0700
+++ b/mercurial/wireprototypes.py	Wed Mar 28 10:12:02 2018 -0700
@@ -22,7 +22,8 @@
     },
     SSHV2: {
         'transport': 'ssh',
-        'version': 2,
+        # TODO mark as version 2 once all commands are implemented.
+        'version': 1,
     },
     'http-v1': {
         'transport': 'http',