nix: meta: add changelog (#537561)

pkgs/tools/package-management/nix/modular/packaging/components.nix

@@ -191,6 +191,11 @@ let
     meta = prevAttrs.meta or { } // {
       homepage = prevAttrs.meta.homepage or "https://nixos.org/nix";
       donationPage = prevAttrs.meta.donationPage or "https://nixos.org/donate/";
+      changelog =
+        let
+          ver = lib.versions.majorMinor finalAttrs.version;
+        in
+        prevAttrs.meta.changelog or "https://nix.dev/manual/nix/${ver}/release-notes/rl-${ver}.html";
       longDescription =
         prevAttrs.longDescription or ''
           Nix is a powerful package manager for mainly Linux and other Unix systems that

pkgs/tools/package-management/nix/modular/packaging/everything.nix

@@ -238,12 +238,17 @@ stdenv.mkDerivation (finalAttrs: {
   meta = {
     mainProgram = "nix";
     description = "Nix package manager";
-    longDescription = nix-cli.meta.longDescription;
-    homepage = nix-cli.meta.homepage;
-    donationPage = nix-cli.meta.donationPage;
-    license = nix-cli.meta.license;
+    inherit (nix-cli.meta)
+      longDescription
+      homepage
+      donationPage
+      license
+      platforms
+      changelog
+      ;
+
     teams = teams;
-    platforms = nix-cli.meta.platforms;
+
     outputsToInstall = [
       "out"
       "man"