diff --git a/example/lib/main.dart b/example/lib/main.dart
index ce2505f..da433e3 100644
--- a/example/lib/main.dart
+++ b/example/lib/main.dart
@@ -13,7 +13,6 @@ void main() {
   typeMappings: {'Pet': 'ExamplePet'},
   generatorName: Generator.dio,
   runSourceGenOnOutput: true,
-  skipIfSpecIsUnchanged: false,
   outputDirectory: 'api/petstore_api',
 )
 class MyApp extends StatelessWidget {
diff --git a/example/pubspec.lock b/example/pubspec.lock
index a85b19f..f4efe0b 100644
--- a/example/pubspec.lock
+++ b/example/pubspec.lock
@@ -319,26 +319,26 @@ packages:
     dependency: transitive
     description:
       name: leak_tracker
-      sha256: "6bb818ecbdffe216e81182c2f0714a2e62b593f4a4f13098713ff1685dfb6ab0"
+      sha256: "8dcda04c3fc16c14f48a7bb586d4be1f0d1572731b6d81d51772ef47c02081e0"
       url: "https://pub.dev"
     source: hosted
-    version: "10.0.9"
+    version: "11.0.1"
   leak_tracker_flutter_testing:
     dependency: transitive
     description:
       name: leak_tracker_flutter_testing
-      sha256: f8b613e7e6a13ec79cfdc0e97638fddb3ab848452eff057653abd3edba760573
+      sha256: "1dbc140bb5a23c75ea9c4811222756104fbcd1a27173f0c34ca01e16bea473c1"
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.9"
+    version: "3.0.10"
   leak_tracker_testing:
     dependency: transitive
     description:
       name: leak_tracker_testing
-      sha256: "6ba465d5d76e67ddf503e1161d1f4a6bc42306f9d66ca1e8f079a47290fb06d3"
+      sha256: "8d5a2d49f4a66b49744b23b018848400d23e54caf9463f4eb20df3eb8acb2eb1"
       url: "https://pub.dev"
     source: hosted
-    version: "3.0.1"
+    version: "3.0.2"
   lints:
     dependency: transitive
     description:
@@ -560,10 +560,10 @@ packages:
     dependency: transitive
     description:
       name: test_api
-      sha256: fb31f383e2ee25fbbfe06b40fe21e1e458d14080e3c67e7ba0acfde4df4e0bbd
+      sha256: "522f00f556e73044315fa4585ec3270f1808a4b186c936e612cab0b565ff1e00"
       url: "https://pub.dev"
     source: hosted
-    version: "0.7.4"
+    version: "0.7.6"
   timing:
     dependency: transitive
     description:
@@ -584,10 +584,10 @@ packages:
     dependency: transitive
     description:
       name: vector_math
-      sha256: "80b3257d1492ce4d091729e3a67a60407d227c27241d6927be0130c98e741803"
+      sha256: d530bd74fea330e6e364cda7a85019c434070188383e1cd8d9777ee586914c5b
       url: "https://pub.dev"
     source: hosted
-    version: "2.1.4"
+    version: "2.2.0"
   vm_service:
     dependency: transitive
     description:
diff --git a/openapi-generator-annotations/lib/src/openapi_generator_annotations_base.dart b/openapi-generator-annotations/lib/src/openapi_generator_annotations_base.dart
index bd9a5c3..052eb44 100644
--- a/openapi-generator-annotations/lib/src/openapi_generator_annotations_base.dart
+++ b/openapi-generator-annotations/lib/src/openapi_generator_annotations_base.dart
@@ -4,10 +4,6 @@ import 'dart:io';
 import 'package:crypto/crypto.dart';
 import 'package:meta/meta.dart';
 
-const skipSpecDepMessage =
-    'This will be removed in next major release. This generator will always run'
-    'if changes are detected on local spec file. see https://github.com/gibahjoe/openapi-generator-dart#deprecation--breaking-change-notice -  Use `forceAlwaysRun` '
-    'to always run the generator regardless of spec changes.';
 
 class Openapi {
   /// Additional properties to pass to the compiler (CSV)
@@ -149,22 +145,10 @@ class Openapi {
   /// Note: Setting this to `true` can lead to merge conflicts in team environments,
   /// as each developer may end up modifying the annotated file.
   ///
-  /// This setting is different from [skipIfSpecIsUnchanged], which only regenerates
-  /// the client SDK if it detects changes in the OpenAPI specification.
   ///
   /// Defaults to [false].
   final bool forceAlwaysRun;
 
-  /// Skips execution if the OpenAPI specification file is different from a cached copy.
-  ///
-  /// For remote specifications, the file will be downloaded and cached locally.
-  /// The cache is then compared to the remote file to detect any changes.
-  ///
-  /// If set to false, a cached copy of the OpenAPI specification file is not kept.
-  ///
-  /// Defaults to [false].
-  @Deprecated(skipSpecDepMessage)
-  final bool skipIfSpecIsUnchanged;
 
   const Openapi({
     this.additionalProperties,
@@ -188,7 +172,6 @@ class Openapi {
     this.projectPubspecPath,
     this.debugLogging = false,
     this.forceAlwaysRun = false,
-    @Deprecated(skipSpecDepMessage) this.skipIfSpecIsUnchanged = true,
   });
 
   @override
@@ -250,7 +233,6 @@ class Openapi {
     }
     buffer.writeln('  debugLogging: $debugLogging,');
     buffer.writeln('  forceAlwaysRun: $forceAlwaysRun,');
-    buffer.writeln('  skipIfSpecIsUnchanged: $skipIfSpecIsUnchanged,');
     buffer.write(')');
     return buffer.toString();
   }
diff --git a/openapi-generator-annotations/test/openapi_generator_annotations_test.dart b/openapi-generator-annotations/test/openapi_generator_annotations_test.dart
index 21e6e0a..9672415 100644
--- a/openapi-generator-annotations/test/openapi_generator_annotations_test.dart
+++ b/openapi-generator-annotations/test/openapi_generator_annotations_test.dart
@@ -30,7 +30,6 @@ void main() {
       expect(props.debugLogging, isFalse);
       expect(props.nameMappings, isNull);
       expect(props.enumNameMappings, isNull);
-      expect(props.skipIfSpecIsUnchanged, isTrue);
     });
     group('NextGen', () {
       test('Sets cachePath', () {
@@ -391,14 +390,6 @@ void main() {
             expect(openapi.toString(), contains('forceAlwaysRun: true'));
           });
 
-          test('should include skipIfSpecIsUnchanged when set', () {
-            final openapi = Openapi(
-              skipIfSpecIsUnchanged: true,
-              inputSpec: InputSpec(path: 'example_path'),
-              generatorName: Generator.dart,
-            );
-            expect(openapi.toString(), contains('skipIfSpecIsUnchanged: true'));
-          });
         });
 
         group('InputSpec.toString', () {
diff --git a/openapi-generator/lib/src/models/generator_arguments.dart b/openapi-generator/lib/src/models/generator_arguments.dart
index 4414eec..939273f 100644
--- a/openapi-generator/lib/src/models/generator_arguments.dart
+++ b/openapi-generator/lib/src/models/generator_arguments.dart
@@ -20,9 +20,6 @@ class GeneratorArguments {
   /// The default location is: .dart_tool/openapi-generator-cache.json
   final String cachePath;
 
-  /// Informs the generator to disable the cache.
-  @Deprecated(skipSpecDepMessage)
-  final bool skipIfSpecIsUnchanged;
 
   final bool isDebug;
 
@@ -137,9 +134,7 @@ class GeneratorArguments {
             '${Directory.current.path}${Platform.pathSeparator}pubspec.yaml'),
         isDebug = annotations.readPropertyOrDefault('debugLogging', false),
         inputSpec =
-            annotations.readPropertyOrDefault('inputSpec', InputSpec.json()),
-        skipIfSpecIsUnchanged =
-            annotations.readPropertyOrDefault('skipIfSpecIsUnchanged', false);
+            annotations.readPropertyOrDefault('inputSpec', InputSpec.json());
 
   /// The stringified name of the [Generator].
   String get generatorName => generator == Generator.dart
diff --git a/openapi-generator/lib/src/openapi_generator_runner.dart b/openapi-generator/lib/src/openapi_generator_runner.dart
index 4f5585d..3f3b27d 100755
--- a/openapi-generator/lib/src/openapi_generator_runner.dart
+++ b/openapi-generator/lib/src/openapi_generator_runner.dart
@@ -215,17 +215,7 @@ class OpenapiGenerator extends GeneratorForAnnotation<annots.Openapi> {
         }
       }
 
-      if (!builderCanReadSpec) {
-        if (args.skipIfSpecIsUnchanged && !await hasDiff(args: args)) {
-          logOutputMessage(
-            log: log,
-            communication: OutputMessage(
-              message: 'No diff between versions, not running generator.',
-            ),
-          );
-          return '';
-        }
-      }
+      // Skip spec check removed - deprecated functionality
 
       await runOpenApiJar(arguments: args);
       await fetchDependencies(baseCommand: baseCommand, args: args);
@@ -242,45 +232,7 @@ class OpenapiGenerator extends GeneratorForAnnotation<annots.Openapi> {
           ),
         ),
       );
-      if (!builderCanReadSpec) {
-        if (!args.skipIfSpecIsUnchanged) {
-          logOutputMessage(
-            log: log,
-            communication: OutputMessage(
-              message:
-                  'Skip spec cache because [skipIfSpecIsUnchanged] is set to false',
-            ),
-          );
-          return '';
-        } else {
-          if (!args.hasLocalCache) {
-            logOutputMessage(
-              log: log,
-              communication: OutputMessage(
-                message: 'No local cache found. Creating one.',
-                level: Level.CONFIG,
-              ),
-            );
-          } else {
-            logOutputMessage(
-              log: log,
-              communication: OutputMessage(
-                message: 'Local cache found. Overwriting existing one.',
-                level: Level.CONFIG,
-              ),
-            );
-          }
-          await cacheSpec(
-              outputLocation: args.cachePath,
-              spec: await loadSpec(specConfig: args.inputSpec));
-          logOutputMessage(
-            log: log,
-            communication: OutputMessage(
-              message: 'Successfully cached spec changes.',
-            ),
-          );
-        }
-      }
+      // Cache handling removed - deprecated functionality
     } catch (e, st) {
       logOutputMessage(
         log: log,
diff --git a/openapi-generator/test/github_issues_test.dart b/openapi-generator/test/github_issues_test.dart
index 6e6e1cb..2528c49 100644
--- a/openapi-generator/test/github_issues_test.dart
+++ b/openapi-generator/test/github_issues_test.dart
@@ -334,7 +334,6 @@ void main() {
               typeMappings: {'Pet': 'ExamplePet'},
               generatorName: Generator.dio,
               runSourceGenOnOutput: true,
-              skipIfSpecIsUnchanged: false,
               cleanSubOutputDirectory: [
                 './test/specs/issue/$issueNumber/output'
               ],
@@ -377,7 +376,6 @@ void main() {
               generatorName: Generator.dio,
               runSourceGenOnOutput: true,
               typeMappings: {'Pet': 'ExamplePet', 'Test': 'ExampleTest'},
-              skipIfSpecIsUnchanged: false,
               cleanSubOutputDirectory: [
                 './test/specs/issue/$issueNumber/output'
               ],