26.05 beta release

nixos/modules/config/nix-channel.nix

@@ -70,7 +70,7 @@ in
       defaultChannel = mkOption {
         internal = true;
         type = types.str;
-        default = "https://channels.nixos.org/nixos-unstable";
+        default = "https://channels.nixos.org/nixos-26.05";
         description = "Default NixOS channel to which the root user is subscribed.";
       };
     };

nixos/modules/misc/version.nix

@@ -51,6 +51,7 @@ let
       VENDOR_URL = optionalString isNixos "https://nixos.org/";
       DOCUMENTATION_URL = optionalString isNixos "https://nixos.org/learn.html";
       SUPPORT_URL = optionalString isNixos "https://nixos.org/community.html";
+      SUPPORT_END = "2026-12-31";
       BUG_REPORT_URL = optionalString isNixos "https://github.com/NixOS/nixpkgs/issues";
       ANSI_COLOR = optionalString isNixos "0;38;2;126;186;228";
       IMAGE_ID = optionalString (config.system.image.id != null) config.system.image.id;

nixos/release.nix

@@ -30,7 +30,8 @@ let
 
   version = fileContents ../.version;
   versionSuffix =
-    (if stableBranch then "." else "pre") + "${toString nixpkgs.revCount}.${nixpkgs.shortRev}";
+    (if stableBranch then "." else "beta")
+    + "${toString (nixpkgs.revCount - 1004291)}.${nixpkgs.shortRev}";
 
   # Run the tests for each platform.  You can run a test by doing
   # e.g. ‘nix-build release.nix -A tests.login.x86_64-linux’,