diff --git a/lib/services_cloud_run.dart b/lib/services_cloud_run.dart
index 8d0ec7a..d17b113 100644
--- a/lib/services_cloud_run.dart
+++ b/lib/services_cloud_run.dart
@@ -92,7 +92,6 @@
 
   EndpointsServer._(String? redisServerUri, Sdk sdk) {
     _commonServerImpl = CommonServerImpl(
-      _ServerContainer(),
       redisServerUri == null
           ? InMemoryCache()
           : RedisCache(
@@ -136,8 +135,3 @@
     });
   }
 }
-
-class _ServerContainer implements ServerContainer {
-  @override
-  String get version => '1.0';
-}
diff --git a/lib/services_dev.dart b/lib/services_dev.dart
index 6061f92..1273a22 100644
--- a/lib/services_dev.dart
+++ b/lib/services_dev.dart
@@ -65,7 +65,6 @@
 
   EndpointsServer._(Sdk sdk, bool nullSafety) {
     final commonServerImpl = CommonServerImpl(
-      _ServerContainer(),
       _Cache(),
       sdk,
     );
@@ -93,11 +92,6 @@
   }
 }
 
-class _ServerContainer implements ServerContainer {
-  @override
-  String get version => '1.0';
-}
-
 class _Cache implements ServerCache {
   @override
   Future<String?> get(String key) => Future<String?>.value(null);
diff --git a/lib/src/common_server_api.dart b/lib/src/common_server_api.dart
index 0565887..c131a58 100644
--- a/lib/src/common_server_api.dart
+++ b/lib/src/common_server_api.dart
@@ -12,7 +12,7 @@
 import 'common_server_impl.dart' show BadRequest, CommonServerImpl;
 import 'protos/dart_services.pb.dart' as proto;
 
-export 'common_server_impl.dart' show ServerContainer, log;
+export 'common_server_impl.dart' show log;
 
 part 'common_server_api.g.dart'; // generated with 'pub run build_runner build'
 
diff --git a/lib/src/common_server_impl.dart b/lib/src/common_server_impl.dart
index 450aa95..a521767 100644
--- a/lib/src/common_server_impl.dart
+++ b/lib/src/common_server_impl.dart
@@ -9,7 +9,6 @@
 import 'package:crypto/crypto.dart';
 import 'package:logging/logging.dart';
 
-import '../version.dart';
 import 'analysis_servers.dart';
 import 'common.dart';
 import 'compiler.dart';
@@ -28,12 +27,7 @@
   BadRequest(this.cause);
 }
 
-abstract class ServerContainer {
-  String get version;
-}
-
 class CommonServerImpl {
-  final ServerContainer _container;
   final ServerCache _cache;
   final Sdk _sdk;
 
@@ -45,7 +39,6 @@
   bool get isHealthy => _analysisServers.isHealthy;
 
   CommonServerImpl(
-    this._container,
     this._cache,
     this._sdk,
   ) {
@@ -266,8 +259,6 @@
         ..sdkVersion = _sdk.version
         ..sdkVersionFull = _sdk.versionFull
         ..runtimeVersion = vmVersion
-        ..servicesVersion = servicesVersion
-        ..appEngineVersion = _container.version
         ..flutterDartVersion = _sdk.version
         ..flutterDartVersionFull = _sdk.versionFull
         ..flutterVersion = _sdk.flutterVersion
diff --git a/lib/src/protos/dart_services.pb.dart b/lib/src/protos/dart_services.pb.dart
index b41ed13..947056f 100644
--- a/lib/src/protos/dart_services.pb.dart
+++ b/lib/src/protos/dart_services.pb.dart
@@ -1847,27 +1847,35 @@
   @$pb.TagNumber(3)
   void clearRuntimeVersion() => clearField(3);
 
+  @$core.Deprecated('This field is deprecated.')
   @$pb.TagNumber(4)
   $core.String get appEngineVersion => $_getSZ(3);
+  @$core.Deprecated('This field is deprecated.')
   @$pb.TagNumber(4)
   set appEngineVersion($core.String v) {
     $_setString(3, v);
   }
 
+  @$core.Deprecated('This field is deprecated.')
   @$pb.TagNumber(4)
   $core.bool hasAppEngineVersion() => $_has(3);
+  @$core.Deprecated('This field is deprecated.')
   @$pb.TagNumber(4)
   void clearAppEngineVersion() => clearField(4);
 
+  @$core.Deprecated('This field is deprecated.')
   @$pb.TagNumber(5)
   $core.String get servicesVersion => $_getSZ(4);
+  @$core.Deprecated('This field is deprecated.')
   @$pb.TagNumber(5)
   set servicesVersion($core.String v) {
     $_setString(4, v);
   }
 
+  @$core.Deprecated('This field is deprecated.')
   @$pb.TagNumber(5)
   $core.bool hasServicesVersion() => $_has(4);
+  @$core.Deprecated('This field is deprecated.')
   @$pb.TagNumber(5)
   void clearServicesVersion() => clearField(5);
 
diff --git a/lib/src/protos/dart_services.pbjson.dart b/lib/src/protos/dart_services.pbjson.dart
index 018141b..86cedfc 100644
--- a/lib/src/protos/dart_services.pbjson.dart
+++ b/lib/src/protos/dart_services.pbjson.dart
@@ -607,8 +607,22 @@
     {'1': 'sdkVersion', '3': 1, '4': 1, '5': 9, '10': 'sdkVersion'},
     {'1': 'sdkVersionFull', '3': 2, '4': 1, '5': 9, '10': 'sdkVersionFull'},
     {'1': 'runtimeVersion', '3': 3, '4': 1, '5': 9, '10': 'runtimeVersion'},
-    {'1': 'appEngineVersion', '3': 4, '4': 1, '5': 9, '10': 'appEngineVersion'},
-    {'1': 'servicesVersion', '3': 5, '4': 1, '5': 9, '10': 'servicesVersion'},
+    {
+      '1': 'appEngineVersion',
+      '3': 4,
+      '4': 1,
+      '5': 9,
+      '8': {'3': true},
+      '10': 'appEngineVersion',
+    },
+    {
+      '1': 'servicesVersion',
+      '3': 5,
+      '4': 1,
+      '5': 9,
+      '8': {'3': true},
+      '10': 'servicesVersion',
+    },
     {'1': 'flutterVersion', '3': 6, '4': 1, '5': 9, '10': 'flutterVersion'},
     {
       '1': 'flutterDartVersion',
@@ -674,18 +688,18 @@
 final $typed_data.Uint8List versionResponseDescriptor = $convert.base64Decode(
     'Cg9WZXJzaW9uUmVzcG9uc2USHgoKc2RrVmVyc2lvbhgBIAEoCVIKc2RrVmVyc2lvbhImCg5zZG'
     'tWZXJzaW9uRnVsbBgCIAEoCVIOc2RrVmVyc2lvbkZ1bGwSJgoOcnVudGltZVZlcnNpb24YAyAB'
-    'KAlSDnJ1bnRpbWVWZXJzaW9uEioKEGFwcEVuZ2luZVZlcnNpb24YBCABKAlSEGFwcEVuZ2luZV'
-    'ZlcnNpb24SKAoPc2VydmljZXNWZXJzaW9uGAUgASgJUg9zZXJ2aWNlc1ZlcnNpb24SJgoOZmx1'
-    'dHRlclZlcnNpb24YBiABKAlSDmZsdXR0ZXJWZXJzaW9uEi4KEmZsdXR0ZXJEYXJ0VmVyc2lvbh'
-    'gHIAEoCVISZmx1dHRlckRhcnRWZXJzaW9uEjYKFmZsdXR0ZXJEYXJ0VmVyc2lvbkZ1bGwYCCAB'
-    'KAlSFmZsdXR0ZXJEYXJ0VmVyc2lvbkZ1bGwSYQoPcGFja2FnZVZlcnNpb25zGAkgAygLMjcuZG'
-    'FydF9zZXJ2aWNlcy5hcGkuVmVyc2lvblJlc3BvbnNlLlBhY2thZ2VWZXJzaW9uc0VudHJ5Ug9w'
-    'YWNrYWdlVmVyc2lvbnMSQAoLcGFja2FnZUluZm8YCiADKAsyHi5kYXJ0X3NlcnZpY2VzLmFwaS'
-    '5QYWNrYWdlSW5mb1ILcGFja2FnZUluZm8SHgoKZXhwZXJpbWVudBgLIAMoCVIKZXhwZXJpbWVu'
-    'dBIqChBmbHV0dGVyRW5naW5lU2hhGAwgASgJUhBmbHV0dGVyRW5naW5lU2hhEjUKBWVycm9yGG'
-    'MgASgLMh8uZGFydF9zZXJ2aWNlcy5hcGkuRXJyb3JNZXNzYWdlUgVlcnJvchpCChRQYWNrYWdl'
-    'VmVyc2lvbnNFbnRyeRIQCgNrZXkYASABKAlSA2tleRIUCgV2YWx1ZRgCIAEoCVIFdmFsdWU6Aj'
-    'gB');
+    'KAlSDnJ1bnRpbWVWZXJzaW9uEi4KEGFwcEVuZ2luZVZlcnNpb24YBCABKAlCAhgBUhBhcHBFbm'
+    'dpbmVWZXJzaW9uEiwKD3NlcnZpY2VzVmVyc2lvbhgFIAEoCUICGAFSD3NlcnZpY2VzVmVyc2lv'
+    'bhImCg5mbHV0dGVyVmVyc2lvbhgGIAEoCVIOZmx1dHRlclZlcnNpb24SLgoSZmx1dHRlckRhcn'
+    'RWZXJzaW9uGAcgASgJUhJmbHV0dGVyRGFydFZlcnNpb24SNgoWZmx1dHRlckRhcnRWZXJzaW9u'
+    'RnVsbBgIIAEoCVIWZmx1dHRlckRhcnRWZXJzaW9uRnVsbBJhCg9wYWNrYWdlVmVyc2lvbnMYCS'
+    'ADKAsyNy5kYXJ0X3NlcnZpY2VzLmFwaS5WZXJzaW9uUmVzcG9uc2UuUGFja2FnZVZlcnNpb25z'
+    'RW50cnlSD3BhY2thZ2VWZXJzaW9ucxJACgtwYWNrYWdlSW5mbxgKIAMoCzIeLmRhcnRfc2Vydm'
+    'ljZXMuYXBpLlBhY2thZ2VJbmZvUgtwYWNrYWdlSW5mbxIeCgpleHBlcmltZW50GAsgAygJUgpl'
+    'eHBlcmltZW50EioKEGZsdXR0ZXJFbmdpbmVTaGEYDCABKAlSEGZsdXR0ZXJFbmdpbmVTaGESNQ'
+    'oFZXJyb3IYYyABKAsyHy5kYXJ0X3NlcnZpY2VzLmFwaS5FcnJvck1lc3NhZ2VSBWVycm9yGkIK'
+    'FFBhY2thZ2VWZXJzaW9uc0VudHJ5EhAKA2tleRgBIAEoCVIDa2V5EhQKBXZhbHVlGAIgASgJUg'
+    'V2YWx1ZToCOAE=');
 
 @$core.Deprecated('Use packageInfoDescriptor instead')
 const PackageInfo$json = {
diff --git a/protos/dart_services.proto b/protos/dart_services.proto
index e92e603..933a8d6 100644
--- a/protos/dart_services.proto
+++ b/protos/dart_services.proto
@@ -208,11 +208,11 @@
   // semver string, and have a space and other build details appended.
   string runtimeVersion = 3;
 
-  // The App Engine version.
-  string appEngineVersion = 4;
+  // Removed.
+  string appEngineVersion = 4 [deprecated = true];
 
-  // The dart-services backend version.
-  string servicesVersion = 5;
+  // Removed.
+  string servicesVersion = 5 [deprecated = true];
 
   // The Flutter SDK's version.
   string flutterVersion = 6;
diff --git a/test/common_server_api_protobuf_test.dart b/test/common_server_api_protobuf_test.dart
index 50219bb..e573c47 100644
--- a/test/common_server_api_protobuf_test.dart
+++ b/test/common_server_api_protobuf_test.dart
@@ -74,9 +74,8 @@
     final sdk =
         Sdk.create(Platform.environment['FLUTTER_CHANNEL'] ?? stableChannel);
     setUpAll(() async {
-      final container = MockContainer();
       final cache = MockCache();
-      commonServerImpl = CommonServerImpl(container, cache, sdk);
+      commonServerImpl = CommonServerImpl(cache, sdk);
       commonServerApi = CommonServerApi(commonServerImpl);
       await commonServerImpl.init();
 
@@ -415,9 +414,8 @@
     final sdk =
         Sdk.create(Platform.environment['FLUTTER_CHANNEL'] ?? stableChannel);
     setUpAll(() async {
-      final container = MockContainer();
       final cache = MockCache();
-      commonServerImpl = CommonServerImpl(container, cache, sdk);
+      commonServerImpl = CommonServerImpl(cache, sdk);
       commonServerApi = CommonServerApi(commonServerImpl);
       await commonServerImpl.init();
 
@@ -751,11 +749,6 @@
   // End of multi file files={} tests group.
 }
 
-class MockContainer implements ServerContainer {
-  @override
-  String get version => vmVersion;
-}
-
 class MockCache implements ServerCache {
   @override
   Future<String?> get(String key) => Future.value(null);
diff --git a/test/common_server_api_test.dart b/test/common_server_api_test.dart
index 048ae45..f3b590b 100644
--- a/test/common_server_api_test.dart
+++ b/test/common_server_api_test.dart
@@ -73,9 +73,8 @@
     final sdk =
         Sdk.create(Platform.environment['FLUTTER_CHANNEL'] ?? stableChannel);
     setUp(() async {
-      final container = MockContainer();
       final cache = MockCache();
-      commonServerImpl = CommonServerImpl(container, cache, sdk);
+      commonServerImpl = CommonServerImpl(cache, sdk);
       commonServerApi = CommonServerApi(commonServerImpl);
       await commonServerImpl.init();
 
@@ -539,9 +538,8 @@
     final sdk =
         Sdk.create(Platform.environment['FLUTTER_CHANNEL'] ?? stableChannel);
     setUp(() async {
-      final container = MockContainer();
       final cache = MockCache();
-      commonServerImpl = CommonServerImpl(container, cache, sdk);
+      commonServerImpl = CommonServerImpl(cache, sdk);
       commonServerApi = CommonServerApi(commonServerImpl);
       await commonServerImpl.init();
 
@@ -1238,11 +1236,6 @@
   //-------------------------------------------------------------------------
 }
 
-class MockContainer implements ServerContainer {
-  @override
-  String get version => vmVersion;
-}
-
 class MockCache implements ServerCache {
   final _cache = HashMap<String, String>();
 
diff --git a/test/flutter_analysis_server_test.dart b/test/flutter_analysis_server_test.dart
index 2dd2716..da0fa02 100644
--- a/test/flutter_analysis_server_test.dart
+++ b/test/flutter_analysis_server_test.dart
@@ -140,14 +140,12 @@
   group('CommonServerImpl flutter analyze', () {
     late CommonServerImpl commonServerImpl;
 
-    _MockContainer container;
     _MockCache cache;
 
     setUp(() async {
-      container = _MockContainer();
       cache = _MockCache();
       final sdk = Sdk.create(channel);
-      commonServerImpl = CommonServerImpl(container, cache, sdk);
+      commonServerImpl = CommonServerImpl(cache, sdk);
       await commonServerImpl.init();
     });
 
@@ -303,14 +301,12 @@
     group('CommonServerImpl flutter analyzeFiles files={}', () {
       late CommonServerImpl commonServerImpl;
 
-      _MockContainer container;
       _MockCache cache;
 
       setUp(() async {
-        container = _MockContainer();
         cache = _MockCache();
         final sdk = Sdk.create(channel);
-        commonServerImpl = CommonServerImpl(container, cache, sdk);
+        commonServerImpl = CommonServerImpl(cache, sdk);
         await commonServerImpl.init();
       });
 
@@ -336,11 +332,6 @@
   });
 }
 
-class _MockContainer implements ServerContainer {
-  @override
-  String get version => vmVersion;
-}
-
 class _MockCache implements ServerCache {
   @override
   Future<String?> get(String key) => Future<String?>.value(null);
diff --git a/tool/fuzz_driver.dart b/tool/fuzz_driver.dart
index 72eca48..7c0491e 100644
--- a/tool/fuzz_driver.dart
+++ b/tool/fuzz_driver.dart
@@ -12,7 +12,6 @@
 import 'dart:math';
 
 import 'package:dart_services/src/analysis_server.dart' as analysis_server;
-import 'package:dart_services/src/common.dart';
 import 'package:dart_services/src/common_server_impl.dart';
 import 'package:dart_services/src/compiler.dart' as comp;
 import 'package:dart_services/src/protos/dart_services.pb.dart' as proto;
@@ -26,7 +25,6 @@
 bool dumpDelta = false;
 
 late CommonServerImpl commonServerImpl;
-late MockContainer container;
 late MockCache cache;
 analysis_server.AnalysisServerWrapper? analysisServer;
 
@@ -121,9 +119,8 @@
 
   print('SdKPath: ${sdk.dartSdkPath}');
 
-  container = MockContainer();
   cache = MockCache();
-  commonServerImpl = CommonServerImpl(container, cache, sdk);
+  commonServerImpl = CommonServerImpl(cache, sdk);
   await commonServerImpl.init();
 
   analysisServer =
@@ -383,11 +380,6 @@
   return newStr;
 }
 
-class MockContainer implements ServerContainer {
-  @override
-  String get version => vmVersion;
-}
-
 class MockCache implements ServerCache {
   @override
   Future<String?> get(String key) => Future<String?>.value(null);