Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: _7zip-zstd-rar 25.01-v1.5.7-R4 -> 26.01-v1.5.7-R1 https://github.com/mcmilk/7-Zip-zstd/releases
attrpath: _7zip-zstd-rar
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/g1kksbq3y7zk61w8wvkj2qk0v2bh4xx4-packages.json.drv
building '/nix/store/g1kksbq3y7zk61w8wvkj2qk0v2bh4xx4-packages.json.drv'...

Going to be running update for following packages:
 - 7zip-zstd-25.01-v1.5.7-R4

Press Enter key to continue...
Running update for:
Enqueuing group of 1 packages
 - 7zip-zstd-25.01-v1.5.7-R4: UPDATING ...
 - 7zip-zstd-25.01-v1.5.7-R4: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/by-name/_7/_7zip-zstd/package.nix b/pkgs/by-name/_7/_7zip-zstd/package.nix
index 2614b4b43472..a8017ed31a25 100644
--- a/pkgs/by-name/_7/_7zip-zstd/package.nix
+++ b/pkgs/by-name/_7/_7zip-zstd/package.nix
@@ -16,7 +16,7 @@
 }:
 stdenv.mkDerivation (finalAttrs: {
   pname = "7zip-zstd";
-  version = "25.01-v1.5.7-R4";
+  version = "26.01-v1.5.7-R1";
 
   src = fetchFromGitHub {
     owner = "mcmilk";
@@ -24,9 +24,9 @@ stdenv.mkDerivation (finalAttrs: {
     tag = "v${finalAttrs.version}";
     hash =
       if enableUnfree then
-        "sha256-qP4L5PIG7CHsmYbRock+cbCOGdgujUFG4LHenvvlqzw="
+        "sha256-P6kwg3McroMwqB5bryfoS9dIBsxcd84bVzsjUv5Bk5k="
       else
-        "sha256-R9AUWL35TPh0anyRDhnF28ZYG9FeOxntVIwnnW9e2xA=";
+        "sha256-WowqcjcA/DUwj7DJrKDTYKpCDWd/tTIZ3yiuBgqXpmU=";
     # remove the unRAR related code from the src drv
     # > the license requires that you agree to these use restrictions,
     # > or you must remove the software (source and binary) from your hard disks

No auto update branch exists
Old version 25.01-v1.5.7-R4" not present in master derivation file with contents: {
  lib,
  stdenv,
  fetchFromGitHub,
  makeWrapper,
  asmc-linux,
  useAsmc ? !useUasm && stdenv.hostPlatform.isx86 && stdenv.hostPlatform.isLinux,
  uasm,
  useUasm ?
    enableUnfree
    && stdenv.hostPlatform.isx86
    && (stdenv.hostPlatform.isLinux || stdenv.hostPlatform.isWindows),
  _experimental-update-script-combinators,
  nix-update-script,
  enableUnfree ? false,
}:
stdenv.mkDerivation (finalAttrs: {
  pname = "7zip-zstd";
  version = "26.01-v1.5.7-R1";

  src = fetchFromGitHub {
    owner = "mcmilk";
    repo = "7-Zip-zstd";
    tag = "v${finalAttrs.version}";
    hash =
      if enableUnfree then
        "sha256-P6kwg3McroMwqB5bryfoS9dIBsxcd84bVzsjUv5Bk5k="
      else
        "sha256-WowqcjcA/DUwj7DJrKDTYKpCDWd/tTIZ3yiuBgqXpmU=";
    # remove the unRAR related code from the src drv
    # > the license requires that you agree to these use restrictions,
    # > or you must remove the software (source and binary) from your hard disks
    # https://fedoraproject.org/wiki/Licensing:Unrar
    postFetch = lib.optionalString (!enableUnfree) ''
      rm -r $out/CPP/7zip/Compress/Rar*
    '';
  };

  nativeBuildInputs =
    lib.optionals (!stdenv.hostPlatform.isWindows) [
      makeWrapper
    ]
    ++ lib.optionals useAsmc [ asmc-linux ]
    ++ lib.optionals useUasm [ uasm ];

  outputs = [
    "out"
    "doc"
  ];

  makeFlags = [
    "CC=${stdenv.cc.targetPrefix}cc"
    "CXX=${stdenv.cc.targetPrefix}c++"
  ]
  ++ lib.optionals useAsmc [
    "MY_ASM=asmc"
  ]
  ++ lib.optionals useUasm [
    "MY_ASM=uasm"
  ]
  ++ lib.optionals (stdenv.hostPlatform.isx86 && !useAsmc && !useUasm) [
    "USE_ASM="
  ]
  # it's the compression code with the restriction, see DOC/License.txt
  ++ lib.optionals (!enableUnfree) [ "DISABLE_RAR_COMPRESS=true" ]
  ++ lib.optionals (stdenv.cc.isClang) [ "FLAGS_FLTO=-flto=thin" ]
  ++ lib.optionals (stdenv.hostPlatform.isMinGW) [
    "IS_MINGW=1"
    "MSYSTEM=1"
  ];

  strictDeps = true;
  __structuredAttrs = true;

  enableParallelBuilding = true;

  postPatch = ''
    sed -i 's/-Werror//g' CPP/7zip/7zip_gcc.mak
  ''
  + lib.optionalString stdenv.hostPlatform.isMinGW ''
    substituteInPlace CPP/7zip/7zip_gcc.mak C/7zip_gcc_c.mak \
      --replace-fail windres.exe ${stdenv.cc.targetPrefix}windres
  '';

  buildPhase =
    let
      makefile = "../../cmpl_${
        if stdenv.hostPlatform.isDarwin then
          "mac"
        else if stdenv.cc.isClang then
          "clang"
        else
          "gcc"
      }${
        if stdenv.hostPlatform.isx86_64 then
          "_x64"
        else if stdenv.hostPlatform.isAarch64 then
          "_arm64"
        else if stdenv.hostPlatform.isi686 then
          "_x86"
        else
          ""
      }.mak";
    in
    ''
      runHook preBuild

      for component in Bundles/{Alone,Alone2,Alone7z,Format7zF,SFXCon} UI/Console; do
        make -j $NIX_BUILD_CORES -C CPP/7zip/$component -f ${makefile} "''${makeFlags[@]}"
      done

      runHook postBuild
    '';

  installPhase =
    let
      inherit (stdenv.hostPlatform) extensions isWindows;
    in
    ''
      runHook preInstall

      install -Dt "$out/${if isWindows then "bin" else "lib"}/7zip" \
        CPP/7zip/Bundles/Alone/b/*/7za${extensions.executable} \
        CPP/7zip/Bundles/Alone2/b/*/7zz${extensions.executable} \
        CPP/7zip/Bundles/Alone7z/b/*/7zr${extensions.executable} \
        CPP/7zip/Bundles/Format7zF/b/*/7z${extensions.sharedLibrary} \
        CPP/7zip/UI/Console/b/*/7z${extensions.executable}
      install -D CPP/7zip/Bundles/SFXCon/b/*/7zCon${extensions.executable} "$out/lib/7zip/7zCon.sfx"

      ${lib.optionalString (!isWindows) ''
        mkdir -p "$out/bin"
        for prog in 7za 7zz 7zr 7z; do
          makeWrapper "$out/lib/7zip/$prog" \
            "$out/bin/$prog"
        done
      ''}

      install -Dt "$out/share/doc/7zip" DOC/*.txt

      runHook postInstall
    '';

  setupHook = ./setup-hook.sh;
  passthru.updateScript = _experimental-update-script-combinators.sequence [
    (nix-update-script {
      attrPath = "_7zip-zstd";
      extraArgs = [ "--use-github-releases" ];
    })
    (nix-update-script {
      attrPath = "_7zip-zstd-rar";
      extraArgs = [ "--version=skip" ];
    })
  ];

  meta = {
    homepage = "https://github.com/mcmilk/7-Zip-zstd";
    description = "7-Zip with support for Brotli, Fast-LZMA2, Lizard, LZ4, LZ5 and Zstandard";
    changelog = "https://github.com/mcmilk/7-Zip-zstd/releases/tag/v${finalAttrs.version}";
    license =
      with lib.licenses;
      # p7zip code is largely lgpl2Plus
      # CPP/7zip/Compress/LzfseDecoder.cpp is bsd3
      [
        lgpl2Plus # and
        bsd3
      ]
      ++
        # and CPP/7zip/Compress/Rar* are unfree with the unRAR license restriction
        # the unRAR compression code is disabled by default
        lib.optionals enableUnfree [ unfreeRedistributable ];
    maintainers = with lib.maintainers; [
      ccicnce113424
    ];
    platforms = lib.platforms.unix ++ lib.platforms.windows;
    broken = stdenv.hostPlatform.isWindows; # waiting for fixes in 26.00
    mainProgram = "7z";
  };
})