prepare for 16.03

nixos/modules/misc/version.nix

@@ -89,7 +89,7 @@ in
     defaultChannel = mkOption {
       internal = true;
       type = types.str;
-      default = https://nixos.org/channels/nixos-unstable;
+      default = https://nixos.org/channels/nixos-16.03;
       description = "Default NixOS channel to which the root user is subscribed.";
     };
 

nixos/release.nix

@@ -9,7 +9,7 @@ let
 
   version = builtins.readFile ../.version;
   versionSuffix =
-    (if stableBranch then "." else "pre") + "${toString nixpkgs.revCount}.${nixpkgs.shortRev}";
+    (if stableBranch then "." else "pre") + "${toString (nixpkgs.revCount - 77900)}.${nixpkgs.shortRev}";
 
   forAllSystems = genAttrs supportedSystems;