Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: _7zz 0 -> 1
attrpath: _7zz
Checking auto update branch...
[version] 
[version] skipping because derivation has updateScript
[rustCrateVersion] 
[rustCrateVersion] No cargoHash found
[golangModuleVersion] 
[golangModuleVersion] Not a buildGoModule package with vendorHash
[npmDepsVersion] 
[npmDepsVersion] No npmDepsHash
[updateScript] 
[updateScript] Success
[updateScript] this derivation will be built:
  /nix/store/wlnn7da3cmak3mnzx38p80r9hdpdxqpz-packages.json.drv
building '/nix/store/wlnn7da3cmak3mnzx38p80r9hdpdxqpz-packages.json.drv'...

Going to be running update for following packages:
 - 7zz-25.01

Press Enter key to continue...
Running update for:
Enqueuing group of 1 packages
 - 7zz-25.01: UPDATING ...
 - 7zz-25.01: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/by-name/_7/_7zz/package.nix b/pkgs/by-name/_7/_7zz/package.nix
index cc084c3e199b..3b1680c20159 100644
--- a/pkgs/by-name/_7/_7zz/package.nix
+++ b/pkgs/by-name/_7/_7zz/package.nix
@@ -28,14 +28,14 @@ let
 in
 stdenv.mkDerivation (finalAttrs: {
   pname = "7zz";
-  version = "25.01";
+  version = "26.00";
 
   src = fetchzip {
     url = "https://7-zip.org/a/7z${lib.replaceStrings [ "." ] [ "" ] finalAttrs.version}-src.tar.xz";
     hash =
       {
-        free = "sha256-A1BBdSGepobpguzokL1zpjce5EOl0zqABYciv9zCOac=";
-        unfree = "sha256-Jkj6T4tMols33uyJSOCcVmxh5iBYYCO/rq9dF4NDMko=";
+        free = "sha256-p914FrQPb+h1a+7YIL8ms2YoIfoS1hTCeLLeBF4DjwY=";
+        unfree = "sha256-CIgPhjRSE9A0ABQQx1YTZgO+DNb3BDxRo5xOQmuzBuI=";
       }
       .${if enableUnfree then "unfree" else "free"};
     stripRoot = false;

No auto update branch exists
There might already be an open PR for this update:
- _7zz: 25.01 -> 26.00, enable asm, _7zip-zstd: init at 25.01-v1.5.7-R4
  URL "https://api.github.com/repos/NixOS/nixpkgs/issues/489204"