feat(B-0800 iter-6.0): bump nixpkgs + nix-darwin 24.11 → 25.11 'Xantusia' (current stable; EOL recovery)

full-ai-cluster/README.md

@@ -107,7 +107,7 @@ If you're on Apple Silicon and don't yet have the linux-builder
 running, apply the nix-darwin config first:
 
 ```bash
-nix run nix-darwin/nix-darwin-24.11#darwin-rebuild -- switch --flake .#zeta-mac
+nix run nix-darwin/nix-darwin-25.11#darwin-rebuild -- switch --flake .#zeta-mac
 ```
 
 ### 2. Write to USB stick

full-ai-cluster/flake.nix

@@ -19,15 +19,22 @@
   description = "Zeta full AI cluster — declarative from USB to running workloads";
 
   inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.11";
+    # iter-6.0 (B-0800; the maintainer 2026-05-26 "24.11 is a 2 year old
+    # version you found a 25.11 when you searched latest we need to make
+    # sure we are on latest too"): bumped from nixos-24.11 (EOL'd
+    # 2025-06-30) to nixos-25.11 "Xantusia" (current stable; EOL
+    # 2026-06-30). Per WebSearch
+    # https://nixos.org/blog/announcements/2025/nixos-2511/
+    # validated per `.claude/rules/dep-pin-search-first-authority.md`.
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
     nixos-hardware.url = "github:NixOS/nixos-hardware/master";
     flake-utils.url = "github:numtide/flake-utils";
 
     # nix-darwin pinned to matching release branch so Apple Silicon
     # maintainers can build the x86_64-linux ISO via the linux-builder
-    # VM (Virtualization.framework + Rosetta 2).
+    # VM (Virtualization.framework + Rosetta 2). Same bump as nixpkgs.
     nix-darwin = {
-      url = "github:nix-darwin/nix-darwin/nix-darwin-24.11";
+      url = "github:nix-darwin/nix-darwin/nix-darwin-25.11";
       inputs.nixpkgs.follows = "nixpkgs";
     };
 
@@ -44,7 +51,13 @@
 
   outputs = { self, nixpkgs, nixos-hardware, flake-utils, nix-darwin, disko, ... }@inputs:
     let
-      stateVersion = "24.11";
+      # iter-6.0 stateVersion bump (B-0800; PC1 + future cluster nodes
+      # are fresh-install scope per the maintainer 2026-05-26; no
+      # persistent K8s workloads yet → safe to bump for new hosts.
+      # Already-installed hosts should NOT bump stateVersion in their
+      # per-host nixos/hosts/<name>/configuration.nix without explicit
+      # migration handling per the NixOS upgrade guidance).
+      stateVersion = "25.11";
 
       supportedSystems = [
         "x86_64-linux"

full-ai-cluster/nixos/hosts/worker-template/default.nix

@@ -97,5 +97,5 @@
   ];
   # ─────────────────────────────────────────────────────────────
 
-  system.stateVersion = "24.11";
+  system.stateVersion = "25.11";
 }

full-ai-cluster/nixos/modules/common.nix

@@ -2,7 +2,7 @@
 #
 # Shared baseline every cluster host imports.
 
-{ config, pkgs, lib, stateVersion ? "24.11", ... }:
+{ config, pkgs, lib, stateVersion ? "25.11", ... }:
 
 {
   # iter-5.2 (B-0792): per-node hostname injection lives in its own

full-ai-cluster/tools/zflash.ts

@@ -19,7 +19,7 @@
 // End-to-end keystrokes after first-time setup:
 //
 //   $ bun full-ai-cluster/tools/zflash.ts
-//   ISO: ~/Downloads/zeta-installer-24.11.iso (1.70 GiB)
+//   ISO: ~/Downloads/zeta-installer-25.11.iso (1.70 GiB)
 //   USB: /dev/disk6 (115 GiB, USB 3.2.1 FD)
 //   *** ALL DATA ON /dev/disk6 WILL BE DESTROYED ***
 //   type: yes a3f9
@@ -408,7 +408,7 @@ function autoDownloadFreshIsoIfNeeded(localIso: string): string {
       dlDest = join(
         homedir(),
         "Downloads",
-        `zeta-installer-24.11-ci${latest.id}-${latest.updated_at.slice(0, 10)}.iso`,
+        `zeta-installer-25.11-ci${latest.id}-${latest.updated_at.slice(0, 10)}.iso`,
       );
       if (!existsSync(dlDest)) {
         execFileSync("cp", [ciIsoSrc, dlDest], { stdio: "inherit" });

full-ai-cluster/usb-nixos-installer/flake.nix

@@ -9,13 +9,16 @@
   description = "Zeta USB installer — NixOS bootable image for AI-cluster bootstrap";
 
   inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.11";
+    # iter-6.0 (B-0800): nixos-25.11 "Xantusia" current stable (bumped
+    # 2026-05-26 from EOL'd 24.11; matches sibling full-ai-cluster/
+    # flake.nix).
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
     flake-utils.url = "github:numtide/flake-utils";
   };
 
   outputs = { self, nixpkgs, flake-utils, ... }@inputs:
     let
-      stateVersion = "24.11";
+      stateVersion = "25.11";
     in
     {
       nixosConfigurations.installer = nixpkgs.lib.nixosSystem {

full-ai-cluster/usb-nixos-installer/nixos/installer/configuration.nix

@@ -323,5 +323,5 @@
     Reboot when done.
   '';
 
-  system.stateVersion = "24.11";
+  system.stateVersion = "25.11";
 }