diff --git a/doc/release-notes/rl-2605.section.md b/doc/release-notes/rl-2605.section.md
index 7f81d210872f..d70a5af21189 100644
--- a/doc/release-notes/rl-2605.section.md
+++ b/doc/release-notes/rl-2605.section.md
@@ -337,7 +337,7 @@ gnuradioMinimal.override {
 
 ### Breaking changes {#sec-nixpkgs-release-26.05-lib-breaking}
 
-- The `nodejs_latest` alias now points to `nodejs_25` instead of `nodejs_24`.
+- The `nodejs_latest` alias now points to `nodejs_26` instead of `nodejs_24`.
 
 - `nodejs-slim` no longer exposes a `corepack` executable, it has been moved to an ad-hoc output; to restore the previous behavior, `nodejs-slim.corepack` must be explicitely included.
 
diff --git a/pkgs/development/web/nodejs/v25.nix b/pkgs/development/web/nodejs/v26.nix
similarity index 95%
rename from pkgs/development/web/nodejs/v25.nix
rename to pkgs/development/web/nodejs/v26.nix
index e15993766aee..f1efd968d1b4 100644
--- a/pkgs/development/web/nodejs/v25.nix
+++ b/pkgs/development/web/nodejs/v26.nix
@@ -23,8 +23,8 @@ let
       [ ];
 in
 buildNodejs {
-  version = "25.9.0";
-  sha256 = "8f78af3ee55fb278668b5f801db58bd1a38ea161318eb5ce2128ddbc9cd813aa";
+  version = "26.0.0-rc.1";
+  sha256 = "sha256-Jys58NbFXoQXuhvzkqzwXXaK1GzcOehXIO1FIEQ60x4=";
   patches =
     (
       if (stdenv.hostPlatform.emulatorAvailable buildPackages) then
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 3c5758b0c904..ec8a82ca8fd2 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -1489,6 +1489,8 @@ mapAliases {
   nixStable = throw "'nixStable' has been renamed to/replaced by 'nixVersions.stable'"; # Converted to throw 2025-10-27
   nm-tray = throw "'nm-tray' has been removed, as it only works with Plasma 5"; # Added 2025-08-30
   node2nix = throw "node2nix has been removed because it was only used to maintain the now-removed nodePackages set. Use the newer builders in nixpkgs instead, such as buildNpmPackage"; # Added 2026-03-03
+  nodejs-slim_25 = nodejs_25;
+  nodejs_25 = throw "Node.js 25 support was removed given upstream End-of-Life on 2026-06-01"; # Added 2026-04-26
   nodePackages = throw "nodePackages has been removed. Many packages are now available at the top level (e.g. `pkgs.package-name`). Check on https://search.nixos.org to see if the package is still available."; # Added 2026-03-03
   nodePackages_latest = throw "nodePackages has been removed. Many packages are now available at the top level (e.g. `pkgs.package-name`). Check on https://search.nixos.org to see if the package is still available."; # Added 2026-03-03
   nofi = throw "'nofi' has been removed due to being archived upstream."; # Added 2026-01-16
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index ea13d7b529c6..246989621933 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -2766,12 +2766,12 @@ with pkgs;
   nodejs_24 = callPackage ../development/web/nodejs/symlink.nix { nodejs-slim = nodejs-slim_24; };
   corepack_24 = callPackage ../development/web/nodejs/corepack.nix { nodejs = nodejs-slim_24; };
 
-  nodejs-slim_25 = callPackage ../development/web/nodejs/v25.nix { };
-  nodejs_25 = callPackage ../development/web/nodejs/symlink.nix { nodejs-slim = nodejs-slim_25; };
+  nodejs-slim_26 = callPackage ../development/web/nodejs/v26.nix { };
+  nodejs_26 = callPackage ../development/web/nodejs/symlink.nix { nodejs-slim = nodejs-slim_26; };
 
   # Update this when adding the newest nodejs major version!
-  nodejs_latest = nodejs_25;
-  nodejs-slim_latest = nodejs-slim_25;
+  nodejs_latest = nodejs_26;
+  nodejs-slim_latest = nodejs-slim_26;
 
   buildNpmPackage = callPackage ../build-support/node/build-npm-package { };