diff --git a/packages/artifact_proxy/pubspec.lock b/packages/artifact_proxy/pubspec.lock
index efcae040a..0e883c387 100644
--- a/packages/artifact_proxy/pubspec.lock
+++ b/packages/artifact_proxy/pubspec.lock
@@ -578,4 +578,4 @@ packages:
     source: hosted
     version: "3.1.2"
 sdks:
-  dart: ">=3.4.0 <4.0.0"
+  dart: ">=3.4.0-256.0.dev <4.0.0"
diff --git a/packages/discord_gcp_alerts/pubspec.lock b/packages/discord_gcp_alerts/pubspec.lock
index a5a5daa19..679da24b9 100644
--- a/packages/discord_gcp_alerts/pubspec.lock
+++ b/packages/discord_gcp_alerts/pubspec.lock
@@ -570,4 +570,4 @@ packages:
     source: hosted
     version: "3.1.2"
 sdks:
-  dart: ">=3.4.0 <4.0.0"
+  dart: ">=3.4.0-256.0.dev <4.0.0"
diff --git a/packages/shorebird_cli/bin/shorebird.dart b/packages/shorebird_cli/bin/shorebird.dart
index c7c29d465..01870ebbc 100644
--- a/packages/shorebird_cli/bin/shorebird.dart
+++ b/packages/shorebird_cli/bin/shorebird.dart
@@ -66,7 +66,6 @@ Future<void> main(List<String> args) async {
         shorebirdToolsRef,
         shorebirdValidatorRef,
         shorebirdVersionRef,
-        updaterToolsRef,
         xcodeBuildRef,
       },
     ),
diff --git a/packages/shorebird_cli/lib/src/artifact_manager.dart b/packages/shorebird_cli/lib/src/artifact_manager.dart
index 40f9f15dd..55b17b151 100644
--- a/packages/shorebird_cli/lib/src/artifact_manager.dart
+++ b/packages/shorebird_cli/lib/src/artifact_manager.dart
@@ -21,41 +21,33 @@ class ArtifactManager {
   /// Generates a binary diff between two files and returns the path to the
   /// output diff file.
   Future<String> createDiff({
-    required File releaseArtifact,
-    required File patchArtifact,
+    required String releaseArtifactPath,
+    required String patchArtifactPath,
   }) async {
-    if (!releaseArtifact.existsSync()) {
+    if (!File(releaseArtifactPath).existsSync()) {
       throw FileSystemException(
         'Release artifact does not exist',
-        releaseArtifact.path,
+        releaseArtifactPath,
       );
     }
 
-    if (!patchArtifact.existsSync()) {
+    if (!File(patchArtifactPath).existsSync()) {
       throw FileSystemException(
         'Patch artifact does not exist',
-        patchArtifact.path,
+        patchArtifactPath,
       );
     }
 
     final tempDir = await Directory.systemTemp.createTemp();
-    final outputFile = File(p.join(tempDir.path, 'diff.patch'));
-    final updaterToolsFile = File(updaterTools.path);
-    if (updaterToolsFile.existsSync()) {
-      await updaterTools.createDiff(
-        releaseArtifact: releaseArtifact,
-        patchArtifact: patchArtifact,
-        outputFile: outputFile,
-      );
-    } else {
-      await patchExecutable.run(
-        releaseArtifactPath: releaseArtifact.path,
-        patchArtifactPath: patchArtifact.path,
-        diffPath: outputFile.path,
-      );
-    }
+    final diffPath = p.join(tempDir.path, 'diff.patch');
+
+    await patchExecutable.run(
+      releaseArtifactPath: releaseArtifactPath,
+      patchArtifactPath: patchArtifactPath,
+      diffPath: diffPath,
+    );
 
-    return outputFile.path;
+    return diffPath;
   }
 
   /// Downloads the file at the given [uri] to a temporary directory and returns
diff --git a/packages/shorebird_cli/lib/src/cache.dart b/packages/shorebird_cli/lib/src/cache.dart
index 3ec94bba0..6cc63e657 100644
--- a/packages/shorebird_cli/lib/src/cache.dart
+++ b/packages/shorebird_cli/lib/src/cache.dart
@@ -47,7 +47,6 @@ class Cache {
     registerArtifact(BundleToolArtifact(cache: this, platform: platform));
     registerArtifact(AotToolsDillArtifact(cache: this, platform: platform));
     registerArtifact(AotToolsExeArtifact(cache: this, platform: platform));
-    registerArtifact(UpdaterToolsArtifact(cache: this, platform: platform));
   }
 
   void registerArtifact(CachedArtifact artifact) => _artifacts.add(artifact);
@@ -298,34 +297,3 @@ class BundleToolArtifact extends CachedArtifact {
     return 'https://github.com/google/bundletool/releases/download/1.15.6/bundletool-all-1.15.6.jar';
   }
 }
-
-/// {@template updater_tools_artifact}
-/// Tools used to package patch artifacts for use by the Updater.
-/// {@endtemplate}
-class UpdaterToolsArtifact extends CachedArtifact {
-  /// {@macro updater_tools_artifact}
-  UpdaterToolsArtifact({required super.cache, required super.platform});
-
-  @override
-  String get name => 'updater-tools.dill';
-
-  @override
-  bool get isExecutable => false;
-
-  /// Updater tools was introduced in release 1.1.7.
-  // TODO(bryanoltman): add engine rev and flutter version once this is nailed down
-  @override
-  bool get required => false;
-
-  @override
-  Directory get location => Directory(
-        p.join(
-          cache.getArtifactDirectory(name).path,
-          shorebirdEnv.shorebirdEngineRevision,
-        ),
-      );
-
-  @override
-  String get storageUrl =>
-      '${cache.storageBaseUrl}/${cache.storageBucket}/shorebird/${shorebirdEnv.shorebirdEngineRevision}/$name';
-}
diff --git a/packages/shorebird_cli/lib/src/commands/patch/aar_patcher.dart b/packages/shorebird_cli/lib/src/commands/patch/aar_patcher.dart
index dbb32b016..40cf58ce7 100644
--- a/packages/shorebird_cli/lib/src/commands/patch/aar_patcher.dart
+++ b/packages/shorebird_cli/lib/src/commands/patch/aar_patcher.dart
@@ -141,8 +141,8 @@ class AarPatcher extends Patcher {
       final hash = sha256.convert(await patchArtifact.readAsBytes()).toString();
       try {
         final diffPath = await artifactManager.createDiff(
-          releaseArtifact: File(releaseArtifactPath.value),
-          patchArtifact: patchArtifact,
+          releaseArtifactPath: releaseArtifactPath.value,
+          patchArtifactPath: artifactPath,
         );
         patchArtifactBundles[arch] = PatchArtifactBundle(
           arch: arch.arch,
diff --git a/packages/shorebird_cli/lib/src/commands/patch/android_patcher.dart b/packages/shorebird_cli/lib/src/commands/patch/android_patcher.dart
index e67d669f7..634e779d3 100644
--- a/packages/shorebird_cli/lib/src/commands/patch/android_patcher.dart
+++ b/packages/shorebird_cli/lib/src/commands/patch/android_patcher.dart
@@ -150,8 +150,8 @@ Looked in:
       final hash = sha256.convert(await patchArtifact.readAsBytes()).toString();
       try {
         final diffPath = await artifactManager.createDiff(
-          releaseArtifact: File(releaseArtifactPath.value),
-          patchArtifact: patchArtifact,
+          releaseArtifactPath: releaseArtifactPath.value,
+          patchArtifactPath: patchArtifactPath,
         );
         patchArtifactBundles[releaseArtifactPath.key] = PatchArtifactBundle(
           arch: arch.arch,
diff --git a/packages/shorebird_cli/lib/src/commands/patch/ios_framework_patcher.dart b/packages/shorebird_cli/lib/src/commands/patch/ios_framework_patcher.dart
index 15a93db30..be0117ad3 100644
--- a/packages/shorebird_cli/lib/src/commands/patch/ios_framework_patcher.dart
+++ b/packages/shorebird_cli/lib/src/commands/patch/ios_framework_patcher.dart
@@ -180,8 +180,8 @@ class IosFrameworkPatcher extends Patcher {
 
       patchFile = File(
         await artifactManager.createDiff(
-          releaseArtifact: patchBaseFile,
-          patchArtifact: patchBuildFile,
+          releaseArtifactPath: patchBaseFile.path,
+          patchArtifactPath: patchBuildFile.path,
         ),
       );
     } else {
diff --git a/packages/shorebird_cli/lib/src/commands/patch/ios_patcher.dart b/packages/shorebird_cli/lib/src/commands/patch/ios_patcher.dart
index bfe7312dd..d8bcb1eb0 100644
--- a/packages/shorebird_cli/lib/src/commands/patch/ios_patcher.dart
+++ b/packages/shorebird_cli/lib/src/commands/patch/ios_patcher.dart
@@ -201,8 +201,8 @@ class IosPatcher extends Patcher {
 
       patchFile = File(
         await artifactManager.createDiff(
-          releaseArtifact: patchBaseFile,
-          patchArtifact: patchBuildFile,
+          releaseArtifactPath: patchBaseFile.path,
+          patchArtifactPath: patchBuildFile.path,
         ),
       );
     } else {
diff --git a/packages/shorebird_cli/lib/src/executables/aot_tools.dart b/packages/shorebird_cli/lib/src/executables/aot_tools.dart
index c9f0aa4b1..a30415057 100644
--- a/packages/shorebird_cli/lib/src/executables/aot_tools.dart
+++ b/packages/shorebird_cli/lib/src/executables/aot_tools.dart
@@ -169,7 +169,7 @@ class AotTools {
       workingDirectory: workingDirectory,
     );
 
-    if (result.exitCode != ExitCode.success.code) {
+    if (result.exitCode != 0) {
       throw Exception('Failed to link: ${result.stderr}');
     }
 
diff --git a/packages/shorebird_cli/lib/src/executables/executables.dart b/packages/shorebird_cli/lib/src/executables/executables.dart
index 733eb84ae..6f2a65a37 100644
--- a/packages/shorebird_cli/lib/src/executables/executables.dart
+++ b/packages/shorebird_cli/lib/src/executables/executables.dart
@@ -9,5 +9,4 @@ export 'ios_deploy.dart';
 export 'java.dart';
 export 'patch_executable.dart';
 export 'shorebird_tools.dart';
-export 'updater_tools.dart';
 export 'xcodebuild.dart';
diff --git a/packages/shorebird_cli/lib/src/executables/patch_executable.dart b/packages/shorebird_cli/lib/src/executables/patch_executable.dart
index 4c414f0fc..763c9b881 100644
--- a/packages/shorebird_cli/lib/src/executables/patch_executable.dart
+++ b/packages/shorebird_cli/lib/src/executables/patch_executable.dart
@@ -29,24 +29,22 @@ class PatchFailedException implements Exception {
 ///
 /// Throws [PatchFailedException] if the patch command exits with non-zero code.
 class PatchExecutable {
-  /// The path to the `patch` executable.
-  String get path => p.join(
-        cache.getArtifactDirectory('patch').path,
-        'patch',
-      );
-
   Future<void> run({
     required String releaseArtifactPath,
     required String patchArtifactPath,
     required String diffPath,
   }) async {
+    final diffExecutable = p.join(
+      cache.getArtifactDirectory('patch').path,
+      'patch',
+    );
     final diffArguments = [
       releaseArtifactPath,
       patchArtifactPath,
       diffPath,
     ];
 
-    final result = await process.run(path, diffArguments);
+    final result = await process.run(diffExecutable, diffArguments);
 
     if (result.exitCode != ExitCode.success.code) {
       throw PatchFailedException(
diff --git a/packages/shorebird_cli/lib/src/executables/updater_tools.dart b/packages/shorebird_cli/lib/src/executables/updater_tools.dart
deleted file mode 100644
index 1bfa299bd..000000000
--- a/packages/shorebird_cli/lib/src/executables/updater_tools.dart
+++ /dev/null
@@ -1,65 +0,0 @@
-import 'package:mason_logger/mason_logger.dart';
-import 'package:scoped_deps/scoped_deps.dart';
-import 'package:shorebird_cli/src/executables/patch_executable.dart';
-import 'package:shorebird_cli/src/shorebird_artifacts.dart';
-import 'package:shorebird_cli/src/shorebird_env.dart';
-import 'package:shorebird_cli/src/shorebird_process.dart';
-import 'package:shorebird_cli/src/third_party/flutter_tools/lib/flutter_tools.dart';
-
-/// A reference to a [UpdaterTools] instance.
-final updaterToolsRef = create(UpdaterTools.new);
-
-/// The [UpdaterTools] instance available in the current zone.
-UpdaterTools get updaterTools => read(updaterToolsRef);
-
-class UpdaterTools {
-  /// Path to the updater tools .dill file.
-  String get path => shorebirdArtifacts.getArtifactPath(
-        artifact: ShorebirdArtifact.updaterTools,
-      );
-
-  Future<ShorebirdProcessResult> _exec(
-    List<String> command, {
-    String? workingDirectory,
-  }) async {
-    // local engine versions use .dart and we distribute aot-tools as a .dill
-    return process.run(
-      shorebirdEnv.dartBinaryFile.path,
-      ['run', path, ...command],
-      workingDirectory: workingDirectory,
-    );
-  }
-
-  /// Create a binary diff between a release artifact and a patch artifact.
-  Future<void> createDiff({
-    required File releaseArtifact,
-    required File patchArtifact,
-    required File outputFile,
-  }) async {
-    if (!releaseArtifact.existsSync()) {
-      throw FileSystemException(
-        'Release artifact does not exist',
-        releaseArtifact.path,
-      );
-    }
-
-    if (!patchArtifact.existsSync()) {
-      throw FileSystemException(
-        'Patch artifact does not exist',
-        patchArtifact.path,
-      );
-    }
-
-    final result = await _exec([
-      'diff',
-      '--release=${releaseArtifact.path}',
-      '--patch=${patchArtifact.path}',
-      '--patch-executable=${patchExecutable.path}',
-      '--output=${outputFile.path}',
-    ]);
-
-    if (result.exitCode != ExitCode.success.code) {
-      throw Exception('Failed to create diff: ${result.stderr}');
-    }
-  }
-}
diff --git a/packages/shorebird_cli/lib/src/shorebird_artifacts.dart b/packages/shorebird_cli/lib/src/shorebird_artifacts.dart
index 26bd136ce..220fa9e0e 100644
--- a/packages/shorebird_cli/lib/src/shorebird_artifacts.dart
+++ b/packages/shorebird_cli/lib/src/shorebird_artifacts.dart
@@ -18,9 +18,6 @@ enum ShorebirdArtifact {
 
   /// The gen_snapshot executable.
   genSnapshot,
-
-  /// The updater_tools kernel file.
-  updaterTools,
 }
 
 /// A reference to a [ShorebirdArtifacts] instance.
@@ -57,8 +54,6 @@ class ShorebirdCachedArtifacts implements ShorebirdArtifacts {
         return _aotToolsFile.path;
       case ShorebirdArtifact.genSnapshot:
         return _genSnapshotFile.path;
-      case ShorebirdArtifact.updaterTools:
-        return _updaterToolsFile.path;
     }
   }
 
@@ -113,16 +108,6 @@ class ShorebirdCachedArtifacts implements ShorebirdArtifacts {
       ),
     );
   }
-
-  File get _updaterToolsFile {
-    return File(
-      p.join(
-        cache.getArtifactDirectory('updater-tools').path,
-        shorebirdEnv.shorebirdEngineRevision,
-        'updater-tools.dill',
-      ),
-    );
-  }
 }
 
 /// {@template shorebird_local_engine_artifacts}
@@ -141,8 +126,6 @@ class ShorebirdLocalEngineArtifacts implements ShorebirdArtifacts {
         return _aotToolsFile.path;
       case ShorebirdArtifact.genSnapshot:
         return _genSnapshotFile.path;
-      case ShorebirdArtifact.updaterTools:
-        return _updaterToolsFile.path;
     }
   }
 
@@ -183,17 +166,4 @@ class ShorebirdLocalEngineArtifacts implements ShorebirdArtifacts {
       ),
     );
   }
-
-  File get _updaterToolsFile {
-    return File(
-      p.join(
-        engineConfig.localEngineSrcPath!,
-        'third_party',
-        'updater',
-        'updater_tools',
-        'bin',
-        'updater_tools.dart',
-      ),
-    );
-  }
 }
diff --git a/packages/shorebird_cli/pubspec.lock b/packages/shorebird_cli/pubspec.lock
index 8709f29b0..d44624890 100644
--- a/packages/shorebird_cli/pubspec.lock
+++ b/packages/shorebird_cli/pubspec.lock
@@ -561,10 +561,10 @@ packages:
     dependency: "direct main"
     description:
       name: scoped_deps
-      sha256: bc54cece4fed785157dc53b7554d31107f574897f4b2d1196db905a38c084e31
+      sha256: "7416a9026f3b457dda634a8e83c8e47d7ece33bef360ffba114c2d89255166ae"
       url: "https://pub.dev"
     source: hosted
-    version: "0.1.0+2"
+    version: "0.1.0+1"
   shelf:
     dependency: transitive
     description:
diff --git a/packages/shorebird_cli/test/src/artifact_manager_test.dart b/packages/shorebird_cli/test/src/artifact_manager_test.dart
index 3377b2b16..059e2a80e 100644
--- a/packages/shorebird_cli/test/src/artifact_manager_test.dart
+++ b/packages/shorebird_cli/test/src/artifact_manager_test.dart
@@ -18,6 +18,7 @@ import 'mocks.dart';
 
 void main() {
   group(ArtifactManager, () {
+    late ArtifactManager artifactManager;
     late Cache cache;
     late Directory cacheArtifactDirectory;
     late http.Client httpClient;
@@ -26,8 +27,6 @@ void main() {
     late ShorebirdLogger logger;
     late ShorebirdEnv shorebirdEnv;
     late ShorebirdProcess shorebirdProcess;
-    late UpdaterTools updaterTools;
-    late ArtifactManager artifactManager;
 
     R runWithOverrides<R>(R Function() body) {
       return runScoped(
@@ -39,13 +38,11 @@ void main() {
           patchExecutableRef.overrideWith(() => patchExecutable),
           processRef.overrideWith(() => shorebirdProcess),
           shorebirdEnvRef.overrideWith(() => shorebirdEnv),
-          updaterToolsRef.overrideWith(() => updaterTools),
         },
       );
     }
 
     setUpAll(() {
-      registerFallbackValue(File(''));
       registerFallbackValue(FakeBaseRequest());
     });
 
@@ -54,11 +51,9 @@ void main() {
       cache = MockCache();
       httpClient = MockHttpClient();
       logger = MockShorebirdLogger();
-      patchExecutable = MockPatchExecutable();
       projectRoot = Directory.systemTemp.createTempSync();
       shorebirdProcess = MockShorebirdProcess();
       shorebirdEnv = MockShorebirdEnv();
-      updaterTools = MockUpdaterTools();
 
       when(() => cache.getArtifactDirectory(any()))
           .thenReturn(cacheArtifactDirectory);
@@ -68,6 +63,12 @@ void main() {
         (_) async => http.StreamedResponse(const Stream.empty(), HttpStatus.ok),
       );
 
+      when(() => shorebirdEnv.getShorebirdProjectRoot())
+          .thenReturn(projectRoot);
+
+      artifactManager = ArtifactManager();
+
+      patchExecutable = MockPatchExecutable();
       when(
         () => patchExecutable.run(
           releaseArtifactPath: any(
@@ -83,13 +84,6 @@ void main() {
       ).thenAnswer(
         (_) async {},
       );
-
-      when(() => shorebirdEnv.getShorebirdProjectRoot())
-          .thenReturn(projectRoot);
-
-      when(() => updaterTools.path).thenReturn('updater_tools');
-
-      artifactManager = ArtifactManager();
     });
 
     group('createDiff', () {
@@ -102,22 +96,14 @@ void main() {
           ..createSync(recursive: true);
         patchArtifactFile = File(p.join(tmpDir.path, 'patch_artifact'))
           ..createSync(recursive: true);
-
-        when(
-          () => updaterTools.createDiff(
-            releaseArtifact: any(named: 'releaseArtifact'),
-            patchArtifact: any(named: 'patchArtifact'),
-            outputFile: any(named: 'outputFile'),
-          ),
-        ).thenAnswer((_) async => {});
       });
 
       test('throws error when release artifact file does not exist', () async {
         await expectLater(
           () => runWithOverrides(
             () async => artifactManager.createDiff(
-              releaseArtifact: File('not/a/real/file'),
-              patchArtifact: patchArtifactFile,
+              releaseArtifactPath: 'not/a/real/file',
+              patchArtifactPath: patchArtifactFile.path,
             ),
           ),
           throwsA(
@@ -140,8 +126,8 @@ void main() {
         await expectLater(
           () => runWithOverrides(
             () async => artifactManager.createDiff(
-              releaseArtifact: releaseArtifactFile,
-              patchArtifact: File('not/a/real/file'),
+              releaseArtifactPath: releaseArtifactFile.path,
+              patchArtifactPath: 'not/a/real/file',
             ),
           ),
           throwsA(
@@ -174,8 +160,8 @@ void main() {
         await expectLater(
           () => runWithOverrides(
             () async => artifactManager.createDiff(
-              releaseArtifact: releaseArtifactFile,
-              patchArtifact: patchArtifactFile,
+              releaseArtifactPath: releaseArtifactFile.path,
+              patchArtifactPath: patchArtifactFile.path,
             ),
           ),
           throwsA(
@@ -191,8 +177,8 @@ void main() {
       test('returns diff path when creating diff succeeds', () async {
         final diffPath = await runWithOverrides(
           () => artifactManager.createDiff(
-            releaseArtifact: releaseArtifactFile,
-            patchArtifact: patchArtifactFile,
+            releaseArtifactPath: releaseArtifactFile.path,
+            patchArtifactPath: patchArtifactFile.path,
           ),
         );
 
@@ -205,40 +191,6 @@ void main() {
           ),
         ).called(1);
       });
-
-      group('when updater-tools is present', () {
-        setUp(() {
-          final tempDir = Directory.systemTemp.createTempSync();
-          final updaterToolsFile = File(p.join(tempDir.path, 'updater_tools'))
-            ..createSync();
-          when(() => updaterTools.path).thenReturn(updaterToolsFile.path);
-        });
-
-        test('uses updater-tools instead of patch to create diff', () async {
-          await runWithOverrides(
-            () => artifactManager.createDiff(
-              releaseArtifact: releaseArtifactFile,
-              patchArtifact: patchArtifactFile,
-            ),
-          );
-
-          verify(
-            () => updaterTools.createDiff(
-              releaseArtifact: releaseArtifactFile,
-              patchArtifact: patchArtifactFile,
-              outputFile: any(named: 'outputFile'),
-            ),
-          ).called(1);
-
-          verifyNever(
-            () => patchExecutable.run(
-              releaseArtifactPath: any(named: 'releaseArtifactPath'),
-              patchArtifactPath: any(named: 'patchArtifactPath'),
-              diffPath: any(named: 'diffPath'),
-            ),
-          );
-        });
-      });
     });
 
     group('downloadFile', () {
diff --git a/packages/shorebird_cli/test/src/cache_test.dart b/packages/shorebird_cli/test/src/cache_test.dart
index 8d324b4c8..dca8ec916 100644
--- a/packages/shorebird_cli/test/src/cache_test.dart
+++ b/packages/shorebird_cli/test/src/cache_test.dart
@@ -235,8 +235,7 @@ void main() {
               final request =
                   invocation.positionalArguments.first as http.BaseRequest;
               final fileName = p.basename(request.url.path);
-              if (fileName.startsWith('aot-tools') ||
-                  fileName.startsWith('updater-tools')) {
+              if (fileName.startsWith('aot-tools')) {
                 return http.StreamedResponse(
                   const Stream.empty(),
                   HttpStatus.notFound,
@@ -263,11 +262,6 @@ void main() {
               '''[cache] optional artifact: "aot-tools" was not found, skipping...''',
             ),
           ).called(1);
-          verify(
-            () => logger.detail(
-              '''[cache] optional artifact: "updater-tools.dill" was not found, skipping...''',
-            ),
-          ).called(1);
         });
 
         test('downloads correct artifacts', () async {
@@ -297,7 +291,6 @@ void main() {
             perEngine('patch-darwin-x64.zip'),
             'https://github.com/google/bundletool/releases/download/1.15.6/bundletool-all-1.15.6.jar',
             perEngine('aot-tools.dill'),
-            perEngine('updater-tools.dill'),
           ].map(Uri.parse).toList();
 
           expect(requests, equals(expected));
@@ -342,7 +335,6 @@ void main() {
             // Requests the .dill, fails and falls back to executable:
             perEngine('aot-tools.dill'),
             perEngine('aot-tools-darwin-x64'),
-            perEngine('updater-tools.dill'),
           ].map(Uri.parse).toList();
 
           expect(requests, equals(expected));
@@ -393,7 +385,6 @@ void main() {
             perEngine('patch-windows-x64.zip'),
             'https://github.com/google/bundletool/releases/download/1.15.6/bundletool-all-1.15.6.jar',
             perEngine('aot-tools.dill'),
-            perEngine('updater-tools.dill'),
           ].map(Uri.parse).toList();
 
           expect(requests, equals(expected));
@@ -417,7 +408,6 @@ void main() {
             perEngine('patch-linux-x64.zip'),
             'https://github.com/google/bundletool/releases/download/1.15.6/bundletool-all-1.15.6.jar',
             perEngine('aot-tools.dill'),
-            perEngine('updater-tools.dill'),
           ].map(Uri.parse).toList();
 
           expect(requests, equals(expected));
diff --git a/packages/shorebird_cli/test/src/commands/patch/aar_patcher_test.dart b/packages/shorebird_cli/test/src/commands/patch/aar_patcher_test.dart
index 0270d5157..285cca159 100644
--- a/packages/shorebird_cli/test/src/commands/patch/aar_patcher_test.dart
+++ b/packages/shorebird_cli/test/src/commands/patch/aar_patcher_test.dart
@@ -81,7 +81,6 @@ void main() {
 
     setUpAll(() {
       registerFallbackValue(Directory(''));
-      registerFallbackValue(File(''));
       registerFallbackValue(ReleasePlatform.android);
       registerFallbackValue(Uri.parse('https://example.com'));
       setExitFunctionForTests();
@@ -380,8 +379,8 @@ void main() {
 
         when(
           () => artifactManager.createDiff(
-            patchArtifact: any(named: 'patchArtifact'),
-            releaseArtifact: any(named: 'releaseArtifact'),
+            patchArtifactPath: any(named: 'patchArtifactPath'),
+            releaseArtifactPath: any(named: 'releaseArtifactPath'),
           ),
         ).thenAnswer((_) async {
           final diffPath =
@@ -417,8 +416,8 @@ void main() {
         setUp(() {
           when(
             () => artifactManager.createDiff(
-              releaseArtifact: any(named: 'releaseArtifact'),
-              patchArtifact: any(named: 'patchArtifact'),
+              releaseArtifactPath: any(named: 'releaseArtifactPath'),
+              patchArtifactPath: any(named: 'patchArtifactPath'),
             ),
           ).thenThrow(Exception('error'));
         });
diff --git a/packages/shorebird_cli/test/src/commands/patch/android_patcher_test.dart b/packages/shorebird_cli/test/src/commands/patch/android_patcher_test.dart
index ab980faa1..a6fe6a241 100644
--- a/packages/shorebird_cli/test/src/commands/patch/android_patcher_test.dart
+++ b/packages/shorebird_cli/test/src/commands/patch/android_patcher_test.dart
@@ -90,7 +90,6 @@ void main() {
 
     setUpAll(() {
       registerFallbackValue(Directory(''));
-      registerFallbackValue(File(''));
       registerFallbackValue(ReleasePlatform.android);
       registerFallbackValue(Uri.parse('https://example.com'));
       setExitFunctionForTests();
@@ -387,8 +386,8 @@ Looked in:
 
           when(
             () => artifactManager.createDiff(
-              releaseArtifact: any(named: 'releaseArtifact'),
-              patchArtifact: any(named: 'patchArtifact'),
+              releaseArtifactPath: any(named: 'releaseArtifactPath'),
+              patchArtifactPath: any(named: 'patchArtifactPath'),
             ),
           ).thenThrow(Exception('error'));
         });
@@ -414,8 +413,8 @@ Looked in:
           setUpProjectRootArtifacts();
           when(
             () => artifactManager.createDiff(
-              releaseArtifact: any(named: 'releaseArtifact'),
-              patchArtifact: any(named: 'patchArtifact'),
+              releaseArtifactPath: any(named: 'releaseArtifactPath'),
+              patchArtifactPath: any(named: 'patchArtifactPath'),
             ),
           ).thenAnswer((_) async {
             final tempDir = Directory.systemTemp.createTempSync();
diff --git a/packages/shorebird_cli/test/src/commands/patch/ios_framework_patcher_test.dart b/packages/shorebird_cli/test/src/commands/patch/ios_framework_patcher_test.dart
index 846a3dd05..c76c8e3d3 100644
--- a/packages/shorebird_cli/test/src/commands/patch/ios_framework_patcher_test.dart
+++ b/packages/shorebird_cli/test/src/commands/patch/ios_framework_patcher_test.dart
@@ -669,8 +669,8 @@ void main() {
               setUp(() {
                 when(
                   () => artifactManager.createDiff(
-                    releaseArtifact: any(named: 'releaseArtifact'),
-                    patchArtifact: any(named: 'patchArtifact'),
+                    releaseArtifactPath: any(named: 'releaseArtifactPath'),
+                    patchArtifactPath: any(named: 'patchArtifactPath'),
                   ),
                 ).thenAnswer((_) async => diffPath);
                 setUpProjectRootArtifacts();
diff --git a/packages/shorebird_cli/test/src/commands/patch/ios_patcher_test.dart b/packages/shorebird_cli/test/src/commands/patch/ios_patcher_test.dart
index dc2c1da32..7d4448894 100644
--- a/packages/shorebird_cli/test/src/commands/patch/ios_patcher_test.dart
+++ b/packages/shorebird_cli/test/src/commands/patch/ios_patcher_test.dart
@@ -839,8 +839,8 @@ void main() {
               setUp(() {
                 when(
                   () => artifactManager.createDiff(
-                    releaseArtifact: any(named: 'releaseArtifact'),
-                    patchArtifact: any(named: 'patchArtifact'),
+                    releaseArtifactPath: any(named: 'releaseArtifactPath'),
+                    patchArtifactPath: any(named: 'patchArtifactPath'),
                   ),
                 ).thenAnswer((_) async => diffPath);
                 setUpProjectRootArtifacts();
diff --git a/packages/shorebird_cli/test/src/executables/updater_tools_test.dart b/packages/shorebird_cli/test/src/executables/updater_tools_test.dart
deleted file mode 100644
index 2f1bea0f1..000000000
--- a/packages/shorebird_cli/test/src/executables/updater_tools_test.dart
+++ /dev/null
@@ -1,169 +0,0 @@
-import 'dart:io';
-
-import 'package:mocktail/mocktail.dart';
-import 'package:scoped_deps/scoped_deps.dart';
-import 'package:shorebird_cli/src/executables/executables.dart';
-import 'package:shorebird_cli/src/shorebird_artifacts.dart';
-import 'package:shorebird_cli/src/shorebird_env.dart';
-import 'package:shorebird_cli/src/shorebird_process.dart';
-import 'package:test/test.dart';
-
-import '../mocks.dart';
-
-void main() {
-  group(UpdaterTools, () {
-    late File releaseArtifact;
-    late File patchArtifact;
-    late File outputFile;
-    late PatchExecutable patchExecutable;
-    late ShorebirdArtifacts shorebirdArtifacts;
-    late ShorebirdEnv shorebirdEnv;
-    late ShorebirdProcess shorebirdProcess;
-
-    late UpdaterTools updaterTools;
-
-    R runWithOverrides<R>(R Function() body) {
-      return runScoped(
-        body,
-        values: {
-          patchExecutableRef.overrideWith(() => patchExecutable),
-          processRef.overrideWith(() => shorebirdProcess),
-          shorebirdArtifactsRef.overrideWith(() => shorebirdArtifacts),
-          shorebirdEnvRef.overrideWith(() => shorebirdEnv),
-        },
-      );
-    }
-
-    setUp(() {
-      patchExecutable = MockPatchExecutable();
-      shorebirdArtifacts = MockShorebirdArtifacts();
-      shorebirdEnv = MockShorebirdEnv();
-      shorebirdProcess = MockShorebirdProcess();
-
-      final tempDir = Directory.systemTemp.createTempSync();
-      releaseArtifact = File('${tempDir.path}/release')..createSync();
-      patchArtifact = File('${tempDir.path}/patch')..createSync();
-      outputFile = File('${tempDir.path}/output')..createSync();
-
-      when(() => patchExecutable.path).thenReturn('patch_executable');
-
-      when(
-        () => shorebirdArtifacts.getArtifactPath(
-          artifact: ShorebirdArtifact.updaterTools,
-        ),
-      ).thenReturn('updater_tools');
-
-      when(() => shorebirdEnv.dartBinaryFile).thenReturn(File('dart'));
-
-      updaterTools = UpdaterTools();
-    });
-
-    group('createDiff', () {
-      test('throws FileSystemException if release artifact does not exist',
-          () async {
-        await expectLater(
-          runWithOverrides(
-            () => updaterTools.createDiff(
-              releaseArtifact: File('non_existent_file'),
-              patchArtifact: patchArtifact,
-              outputFile: outputFile,
-            ),
-          ),
-          throwsA(isA<FileSystemException>()),
-        );
-      });
-
-      test('throws FileSystemException if patch artifact does not exist',
-          () async {
-        await expectLater(
-          runWithOverrides(
-            () => updaterTools.createDiff(
-              releaseArtifact: releaseArtifact,
-              patchArtifact: File('non_existent_file'),
-              outputFile: outputFile,
-            ),
-          ),
-          throwsA(isA<FileSystemException>()),
-        );
-      });
-
-      group('when diff exits with non-zero code', () {
-        setUp(() {
-          when(
-            () => shorebirdProcess.run(
-              any(),
-              any(),
-              workingDirectory: any(named: 'workingDirectory'),
-            ),
-          ).thenAnswer(
-            (_) async => const ShorebirdProcessResult(
-              exitCode: 1,
-              stdout: '',
-              stderr: '',
-            ),
-          );
-        });
-
-        test('throws exception', () {
-          expect(
-            () => runWithOverrides(
-              () => updaterTools.createDiff(
-                releaseArtifact: releaseArtifact,
-                patchArtifact: patchArtifact,
-                outputFile: outputFile,
-              ),
-            ),
-            throwsA(isA<Exception>()),
-          );
-        });
-      });
-
-      group('when diff exits successfully', () {
-        setUp(() {
-          when(
-            () => shorebirdProcess.run(
-              any(),
-              any(),
-              workingDirectory: any(named: 'workingDirectory'),
-            ),
-          ).thenAnswer(
-            (_) async => const ShorebirdProcessResult(
-              exitCode: 0,
-              stdout: '',
-              stderr: '',
-            ),
-          );
-        });
-
-        test('completes', () {
-          expect(
-            () => runWithOverrides(
-              () => updaterTools.createDiff(
-                releaseArtifact: releaseArtifact,
-                patchArtifact: patchArtifact,
-                outputFile: outputFile,
-              ),
-            ),
-            returnsNormally,
-          );
-
-          verify(
-            () => shorebirdProcess.run(
-              'dart',
-              [
-                'run',
-                'updater_tools',
-                'diff',
-                '--release=${releaseArtifact.path}',
-                '--patch=${patchArtifact.path}',
-                '--patch-executable=${patchExecutable.path}',
-                '--output=${outputFile.path}',
-              ],
-              workingDirectory: any(named: 'workingDirectory'),
-            ),
-          ).called(1);
-        });
-      });
-    });
-  });
-}
diff --git a/packages/shorebird_cli/test/src/mocks.dart b/packages/shorebird_cli/test/src/mocks.dart
index 02503af72..c602b167b 100644
--- a/packages/shorebird_cli/test/src/mocks.dart
+++ b/packages/shorebird_cli/test/src/mocks.dart
@@ -162,8 +162,6 @@ class MockShorebirdYaml extends Mock implements ShorebirdYaml {}
 
 class MockStdin extends Mock implements Stdin {}
 
-class MockUpdaterTools extends Mock implements UpdaterTools {}
-
 class MockValidator extends Mock implements Validator {}
 
 class MockXcodeBuild extends Mock implements XcodeBuild {}
diff --git a/packages/shorebird_cli/test/src/shorebird_artifacts_test.dart b/packages/shorebird_cli/test/src/shorebird_artifacts_test.dart
index e23331f30..8b4e03ba9 100644
--- a/packages/shorebird_cli/test/src/shorebird_artifacts_test.dart
+++ b/packages/shorebird_cli/test/src/shorebird_artifacts_test.dart
@@ -104,69 +104,46 @@ void main() {
         });
       });
 
-      group('gen_snapshot', () {
-        test('returns correct path', () {
-          expect(
-            runWithOverrides(
-              () => artifacts.getArtifactPath(
-                artifact: ShorebirdArtifact.genSnapshot,
-              ),
-            ),
-            equals(
-              p.join(
-                flutterDirectory.path,
-                'bin',
-                'cache',
-                'artifacts',
-                'engine',
-                'ios-release',
-                'gen_snapshot_arm64',
-              ),
-            ),
-          );
-        });
-      });
-
-      group('analyze_snapshot', () {
-        test('returns correct path', () {
-          expect(
-            runWithOverrides(
-              () => artifacts.getArtifactPath(
-                artifact: ShorebirdArtifact.analyzeSnapshot,
-              ),
+      test('returns correct path for gen_snapshot', () {
+        expect(
+          runWithOverrides(
+            () => artifacts.getArtifactPath(
+              artifact: ShorebirdArtifact.genSnapshot,
             ),
-            equals(
-              p.join(
-                flutterDirectory.path,
-                'bin',
-                'cache',
-                'artifacts',
-                'engine',
-                'ios-release',
-                'analyze_snapshot_arm64',
-              ),
+          ),
+          equals(
+            p.join(
+              flutterDirectory.path,
+              'bin',
+              'cache',
+              'artifacts',
+              'engine',
+              'ios-release',
+              'gen_snapshot_arm64',
             ),
-          );
-        });
+          ),
+        );
       });
 
-      group('updater_tools', () {
-        test('returns correct path', () {
-          expect(
-            runWithOverrides(
-              () => artifacts.getArtifactPath(
-                artifact: ShorebirdArtifact.updaterTools,
-              ),
+      test('returns correct path for analyze_snapshot', () {
+        expect(
+          runWithOverrides(
+            () => artifacts.getArtifactPath(
+              artifact: ShorebirdArtifact.analyzeSnapshot,
             ),
-            equals(
-              p.join(
-                artifactDirectory.path,
-                engineRevision,
-                'updater-tools.dill',
-              ),
+          ),
+          equals(
+            p.join(
+              flutterDirectory.path,
+              'bin',
+              'cache',
+              'artifacts',
+              'engine',
+              'ios-release',
+              'analyze_snapshot_arm64',
             ),
-          );
-        });
+          ),
+        );
       });
     });
   });
@@ -201,91 +178,63 @@ void main() {
     });
 
     group('getArtifactPath', () {
-      group('aot-tools', () {
-        test('returns correct path', () {
-          expect(
-            runWithOverrides(
-              () => artifacts.getArtifactPath(
-                artifact: ShorebirdArtifact.aotTools,
-              ),
+      test('returns correct path for aot tools', () {
+        expect(
+          runWithOverrides(
+            () => artifacts.getArtifactPath(
+              artifact: ShorebirdArtifact.aotTools,
             ),
-            equals(
-              p.join(
-                localEngineSrcPath,
-                'third_party',
-                'dart',
-                'pkg',
-                'aot_tools',
-                'bin',
-                'aot_tools.dart',
-              ),
+          ),
+          equals(
+            p.join(
+              localEngineSrcPath,
+              'third_party',
+              'dart',
+              'pkg',
+              'aot_tools',
+              'bin',
+              'aot_tools.dart',
             ),
-          );
-        });
+          ),
+        );
       });
 
-      group('gen_snapshot', () {
-        test('returns correct path', () {
-          expect(
-            runWithOverrides(
-              () => artifacts.getArtifactPath(
-                artifact: ShorebirdArtifact.genSnapshot,
-              ),
+      test('returns correct path for gen_snapshot', () {
+        expect(
+          runWithOverrides(
+            () => artifacts.getArtifactPath(
+              artifact: ShorebirdArtifact.genSnapshot,
             ),
-            equals(
-              p.join(
-                localEngineSrcPath,
-                'out',
-                localEngine,
-                'clang_x64',
-                'gen_snapshot_arm64',
-              ),
+          ),
+          equals(
+            p.join(
+              localEngineSrcPath,
+              'out',
+              localEngine,
+              'clang_x64',
+              'gen_snapshot_arm64',
             ),
-          );
-        });
+          ),
+        );
       });
 
-      group('analyze_snapshot', () {
-        test('returns correct path', () {
-          expect(
-            runWithOverrides(
-              () => artifacts.getArtifactPath(
-                artifact: ShorebirdArtifact.analyzeSnapshot,
-              ),
+      test('returns correct path for analyze_snapshot', () {
+        expect(
+          runWithOverrides(
+            () => artifacts.getArtifactPath(
+              artifact: ShorebirdArtifact.analyzeSnapshot,
             ),
-            equals(
-              p.join(
-                localEngineSrcPath,
-                'out',
-                localEngine,
-                'clang_x64',
-                'analyze_snapshot_arm64',
-              ),
+          ),
+          equals(
+            p.join(
+              localEngineSrcPath,
+              'out',
+              localEngine,
+              'clang_x64',
+              'analyze_snapshot_arm64',
             ),
-          );
-        });
-
-        group('updater-tools', () {
-          test('returns correct path', () {
-            expect(
-              runWithOverrides(
-                () => artifacts.getArtifactPath(
-                  artifact: ShorebirdArtifact.updaterTools,
-                ),
-              ),
-              equals(
-                p.join(
-                  localEngineSrcPath,
-                  'third_party',
-                  'updater',
-                  'updater_tools',
-                  'bin',
-                  'updater_tools.dart',
-                ),
-              ),
-            );
-          });
-        });
+          ),
+        );
       });
     });
   });