diff --git a/.version b/.version
index 6879fa566dd..6daccccf784 100644
--- a/.version
+++ b/.version
@@ -1 +1 @@
-17.03
\ No newline at end of file
+17.10
diff --git a/nixos/modules/misc/version.nix b/nixos/modules/misc/version.nix
index bf20e801f61..315c33a462c 100644
--- a/nixos/modules/misc/version.nix
+++ b/nixos/modules/misc/version.nix
@@ -95,7 +95,7 @@ in
       nixosVersionSuffix = mkIf (pathIsDirectory gitRepo) (mkDefault (".git." + gitCommitId));
 
       # Note: code names must only increase in alphabetical order.
-      nixosCodeName = "Gorilla";
+      nixosCodeName = "Hummingbird";
     };
 
     # Generate /etc/os-release.  See