Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: _1password-cli 0 -> 1
attrpath: _1password-cli
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/01vhfhv0s21ryl5hyvc92ybsbawnranq-packages.json.drv
building '/nix/store/01vhfhv0s21ryl5hyvc92ybsbawnranq-packages.json.drv'...

Going to be running update for following packages:
 - 1password-cli-2.34.1

Press Enter key to continue...
Running update for:
Enqueuing group of 1 packages
 - 1password-cli-2.34.1: UPDATING ...
 - 1password-cli-2.34.1: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/by-name/_1/_1password-cli/package.nix b/pkgs/by-name/_1/_1password-cli/package.nix
index 6595b170e8e3..e2f76af6d36e 100644
--- a/pkgs/by-name/_1/_1password-cli/package.nix
+++ b/pkgs/by-name/_1/_1password-cli/package.nix
@@ -24,13 +24,13 @@ let
     if extension == "zip" then fetchzip args else fetchurl args;
 
   pname = "1password-cli";
-  version = "2.34.1";
+  version = "2.39.0-beta.02";
   sources = {
-    aarch64-linux = fetch "linux_arm64" "sha256-uEukRq71eeayvNguD9XepvP1Br5AkE2Ag/Chv2idf4A=" "zip";
-    i686-linux = fetch "linux_386" "sha256-p/F3YZLJnlimrVE2qxTHvIB4m47kuwhoCWTC40VIvMs=" "zip";
-    x86_64-linux = fetch "linux_amd64" "sha256-oAABMlwwv5X91TT6FK2aPpg+e2CvmHT1rqIVRTjQNCQ=" "zip";
+    aarch64-linux = fetch "linux_arm64" "sha256-wrDDNUI0W/S85wv8TfrJXI2FeKJDFaHFDH/y9DRbMGk=" "zip";
+    i686-linux = fetch "linux_386" "sha256-kMe0jj6XhRC59Vqi6wtw8THBLdVDhjFOFXUqI2t9ZOg=" "zip";
+    x86_64-linux = fetch "linux_amd64" "sha256-ZbqkqY2InfeBU3jxh27F9WPMy6EyrERUbO1PM9i0ycA=" "zip";
     aarch64-darwin =
-      fetch "apple_universal" "sha256-vp1Y1M6DUanx1CAVhLrqgBovwws6Y/5jOgnwTZE8Hhc="
+      fetch "apple_universal" "sha256-af3G2rc4JsqN7fn9uitN4S5z1x/DVLadHbszCUQswz0="
         "pkg";
   };
   platforms = builtins.attrNames sources;

No auto update branch exists
Old version 2.34.1" not present in master derivation file with contents: {
  lib,
  stdenv,
  fetchurl,
  fetchzip,
  autoPatchelfHook,
  installShellFiles,
  cpio,
  xar,
  versionCheckHook,
}:

let
  inherit (stdenv.hostPlatform) system;
  fetch =
    srcPlatform: hash: extension:
    let
      args = {
        url = "https://cache.agilebits.com/dist/1P/op2/pkg/v${version}/op_${srcPlatform}_v${version}.${extension}";
        inherit hash;
      }
      // lib.optionalAttrs (extension == "zip") { stripRoot = false; };
    in
    if extension == "zip" then fetchzip args else fetchurl args;

  pname = "1password-cli";
  version = "2.38.1";
  sources = {
    aarch64-linux = fetch "linux_arm64" "sha256-RmpJkrrLrKwbmbw50+sTg0aFa0+M2EFPZ6+QSc3aV5M=" "zip";
    i686-linux = fetch "linux_386" "sha256-hnpVsbNgofmfw/XobVZ2MnbGIcAjxH1MvVJNc5T1kuk=" "zip";
    x86_64-linux = fetch "linux_amd64" "sha256-k268YiTC/2MJZhVqMI/e9bsrf4Sr4Wj8M/h/hbmmcqY=" "zip";
    aarch64-darwin =
      fetch "apple_universal" "sha256-pLlEsqCL5j9QCuLkQxK/Mmz647lKbCYhOUiPch2MMuE="
        "pkg";
  };
  platforms = builtins.attrNames sources;
  mainProgram = "op";
in

stdenv.mkDerivation {
  inherit pname version;
  src =
    if (builtins.elem system platforms) then
      sources.${system}
    else
      throw "Source for 1password-cli is not available for ${system}";

  nativeBuildInputs = [
    installShellFiles
    versionCheckHook
  ]
  ++ lib.optional stdenv.hostPlatform.isLinux autoPatchelfHook
  ++ lib.optionals stdenv.hostPlatform.isDarwin [
    xar
    cpio
  ];

  unpackPhase = lib.optionalString stdenv.hostPlatform.isDarwin ''
    xar -xf $src
    zcat op.pkg/Payload | cpio -i
  '';

  installPhase = ''
    runHook preInstall
    install -D op $out/bin/op
    runHook postInstall
  '';

  postInstall = lib.optionalString (stdenv.buildPlatform.canExecute stdenv.hostPlatform) ''
    HOME=$TMPDIR
    installShellCompletion --cmd op \
      --bash <($out/bin/op completion bash) \
      --fish <($out/bin/op completion fish) \
      --zsh <($out/bin/op completion zsh)
  '';

  dontStrip = stdenv.hostPlatform.isDarwin;

  doInstallCheck = true;

  versionCheckProgram = "${placeholder "out"}/bin/op";

  passthru = {
    updateScript = ./update.sh;
  };

  meta = {
    description = "1Password command-line tool";
    homepage = "https://developer.1password.com/docs/cli/";
    downloadPage = "https://app-updates.agilebits.com/product_history/CLI2";
    maintainers = with lib.maintainers; [
      joelburget
      khaneliman
      savtrip
    ];
    sourceProvenance = with lib.sourceTypes; [ binaryNativeCode ];
    license = lib.licenses.unfree;
    inherit mainProgram platforms;
  };
}