diff --git a/connection.capnp b/connection.capnp
index 6ec6ad9..98337df 100644
--- a/connection.capnp
+++ b/connection.capnp
@@ -11,6 +11,17 @@ using MachineSystem = import "machinesystem.capnp".MachineSystem;
 using UserSystem = import "usersystem.capnp".UserSystem;
 using PermissionSystem = import "permissionsystem.capnp".PermissionSystem;
 
+const api_version_major :Int32  = 0;
+const api_version_minor :Int32  = 3;
+const api_version_patch :Int32  = 0;
+
+struct Version
+{
+    major @0 :Int32;
+    minor @1 :Int32;
+    patch @2 :Int32;
+}
+
 interface Bootstrap 
 {
     authenticationSystem @0 () -> ( authenticationSystem : AuthenticationSystem );
@@ -19,5 +30,9 @@ interface Bootstrap
     
     userSystem @2 () -> ( userSystem : UserSystem );
 
-    permissionSystem @3 () -> ( permissionSystem : PermissionSystem );    
+    permissionSystem @3 () -> ( permissionSystem : PermissionSystem );
+
+    getAPIVersion @4 () -> ( version : Version );
+
+    getServerVersion @5 () -> ( version : Version );
 }