diff --git a/packages/frontend-plugin-api/api-report.md b/packages/frontend-plugin-api/api-report.md
index 9419efc05e..fbcd3a9caa 100644
--- a/packages/frontend-plugin-api/api-report.md
+++ b/packages/frontend-plugin-api/api-report.md
@@ -477,6 +477,55 @@ export function createComponentRef<T extends {} = {}>(options: {
 }): ComponentRef<T>;
 
 // @public (undocumented)
+export function createExtension<
+  UOutput extends AnyExtensionDataRef,
+  TInputs extends {
+    [inputName in string]: ExtensionInput<
+      AnyExtensionDataRef,
+      {
+        optional: boolean;
+        singleton: boolean;
+      }
+    >;
+  },
+  TConfigSchema extends {
+    [key: string]: (zImpl: typeof z) => z.ZodType;
+  },
+  UFactoryOutput extends ExtensionDataValue<any, any>,
+  const TKind extends string | undefined = undefined,
+  const TNamespace extends string | undefined = undefined,
+  const TName extends string | undefined = undefined,
+>(
+  options: CreateExtensionOptions<
+    TKind,
+    undefined,
+    TName,
+    UOutput,
+    TInputs,
+    TConfigSchema,
+    UFactoryOutput
+  >,
+): ExtensionDefinition<{
+  config: string extends keyof TConfigSchema
+    ? {}
+    : {
+        [key in keyof TConfigSchema]: z.infer<ReturnType<TConfigSchema[key]>>;
+      };
+  configInput: string extends keyof TConfigSchema
+    ? {}
+    : z.input<
+        z.ZodObject<{
+          [key in keyof TConfigSchema]: ReturnType<TConfigSchema[key]>;
+        }>
+      >;
+  output: UOutput;
+  inputs: TInputs;
+  kind: string | undefined extends TKind ? undefined : TKind;
+  namespace: string | undefined extends TNamespace ? undefined : TNamespace;
+  name: string | undefined extends TName ? undefined : TName;
+}>;
+
+// @public @deprecated (undocumented)
 export function createExtension<
   UOutput extends AnyExtensionDataRef,
   TInputs extends {
@@ -543,7 +592,7 @@ export function createExtensionBlueprint<
   },
   UFactoryOutput extends ExtensionDataValue<any, any>,
   TKind extends string,
-  TNamespace extends string | undefined = undefined,
+  TNamespace extends undefined = undefined,
   TName extends string | undefined = undefined,
   TDataRefs extends {
     [name in string]: AnyExtensionDataRef;
@@ -551,7 +600,7 @@ export function createExtensionBlueprint<
 >(
   options: CreateExtensionBlueprintOptions<
     TKind,
-    TNamespace,
+    undefined,
     TName,
     TParams,
     UOutput,
@@ -562,7 +611,7 @@ export function createExtensionBlueprint<
   >,
 ): ExtensionBlueprint<{
   kind: TKind;
-  namespace: TNamespace;
+  namespace: undefined;
   name: TName;
   params: TParams;
   output: UOutput;
@@ -857,6 +906,28 @@ export interface ExtensionBlueprint<
   // (undocumented)
   dataRefs: T['dataRefs'];
   // (undocumented)
+  make<
+    TNewNamespace extends string | undefined,
+    TNewName extends string | undefined,
+  >(args: {
+    namespace?: undefined;
+    name?: TNewName;
+    attachTo?: {
+      id: string;
+      input: string;
+    };
+    disabled?: boolean;
+    params: T['params'];
+  }): ExtensionDefinition<{
+    kind: T['kind'];
+    namespace: undefined;
+    name: string | undefined extends TNewName ? T['name'] : TNewName;
+    config: T['config'];
+    configInput: T['configInput'];
+    output: T['output'];
+    inputs: T['inputs'];
+  }>;
+  // @deprecated (undocumented)
   make<
     TNewNamespace extends string | undefined,
     TNewName extends string | undefined,
@@ -898,7 +969,94 @@ export interface ExtensionBlueprint<
       >;
     },
   >(args: {
-    namespace?: TNewNamespace;
+    namespace?: undefined;
+    name?: TNewName;
+    attachTo?: {
+      id: string;
+      input: string;
+    };
+    disabled?: boolean;
+    inputs?: TExtraInputs & {
+      [KName in keyof T['inputs']]?: `Error: Input '${KName &
+        string}' is already defined in parent definition`;
+    };
+    output?: Array<UNewOutput>;
+    config?: {
+      schema: TExtensionConfigSchema & {
+        [KName in keyof T['config']]?: `Error: Config key '${KName &
+          string}' is already defined in parent schema`;
+      };
+    };
+    factory(
+      originalFactory: (
+        params: T['params'],
+        context?: {
+          config?: T['config'];
+          inputs?: ResolveInputValueOverrides<NonNullable<T['inputs']>>;
+        },
+      ) => ExtensionDataContainer<NonNullable<T['output']>>,
+      context: {
+        node: AppNode;
+        apis: ApiHolder;
+        config: T['config'] & {
+          [key in keyof TExtensionConfigSchema]: z.infer<
+            ReturnType<TExtensionConfigSchema[key]>
+          >;
+        };
+        inputs: Expand<ResolvedExtensionInputs<T['inputs'] & TExtraInputs>>;
+      },
+    ): Iterable<UFactoryOutput> &
+      VerifyExtensionFactoryOutput<
+        AnyExtensionDataRef extends UNewOutput
+          ? NonNullable<T['output']>
+          : UNewOutput,
+        UFactoryOutput
+      >;
+  }): ExtensionDefinition<{
+    config: (string extends keyof TExtensionConfigSchema
+      ? {}
+      : {
+          [key in keyof TExtensionConfigSchema]: z.infer<
+            ReturnType<TExtensionConfigSchema[key]>
+          >;
+        }) &
+      T['config'];
+    configInput: (string extends keyof TExtensionConfigSchema
+      ? {}
+      : z.input<
+          z.ZodObject<{
+            [key in keyof TExtensionConfigSchema]: ReturnType<
+              TExtensionConfigSchema[key]
+            >;
+          }>
+        >) &
+      T['configInput'];
+    output: AnyExtensionDataRef extends UNewOutput ? T['output'] : UNewOutput;
+    inputs: T['inputs'] & TExtraInputs;
+    kind: T['kind'];
+    namespace: undefined;
+    name: string | undefined extends TNewName ? T['name'] : TNewName;
+  }>;
+  // @deprecated (undocumented)
+  makeWithOverrides<
+    TNewNamespace extends string | undefined,
+    TNewName extends string | undefined,
+    TExtensionConfigSchema extends {
+      [key in string]: (zImpl: typeof z) => z.ZodType;
+    },
+    UFactoryOutput extends ExtensionDataValue<any, any>,
+    UNewOutput extends AnyExtensionDataRef,
+    TExtraInputs extends {
+      [inputName in string]: ExtensionInput<
+        AnyExtensionDataRef,
+        {
+          optional: boolean;
+          singleton: boolean;
+        }
+      >;
+    },
+  >(args: {
+    namespace: TNewNamespace;
     name?: TNewName;
     attachTo?: {
       id: string;
diff --git a/packages/frontend-plugin-api/src/wiring/createExtension.ts b/packages/frontend-plugin-api/src/wiring/createExtension.ts
index ab999a2d0c..8c79758395 100644
--- a/packages/frontend-plugin-api/src/wiring/createExtension.ts
+++ b/packages/frontend-plugin-api/src/wiring/createExtension.ts
@@ -122,7 +122,6 @@ export type CreateExtensionOptions<
   UFactoryOutput extends ExtensionDataValue<any, any>,
 > = {
   kind?: TKind;
-  /** @deprecated namespace is no longer required, you can safely remove this option and it will default to the `pluginId`. It will be removed in a future release. */
   namespace?: TNamespace;
   name?: TName;
   attachTo: { id: string; input: string };
@@ -315,6 +314,94 @@ export function toInternalExtensionDefinition<
 }
 
 /** @public */
+export function createExtension<
+  UOutput extends AnyExtensionDataRef,
+  TInputs extends {
+    [inputName in string]: ExtensionInput<
+      AnyExtensionDataRef,
+      { optional: boolean; singleton: boolean }
+    >;
+  },
+  TConfigSchema extends { [key: string]: (zImpl: typeof z) => z.ZodType },
+  UFactoryOutput extends ExtensionDataValue<any, any>,
+  const TKind extends string | undefined = undefined,
+  const TNamespace extends string | undefined = undefined,
+  const TName extends string | undefined = undefined,
+>(
+  options: CreateExtensionOptions<
+    TKind,
+    undefined,
+    TName,
+    UOutput,
+    TInputs,
+    TConfigSchema,
+    UFactoryOutput
+  >,
+): ExtensionDefinition<{
+  config: string extends keyof TConfigSchema
+    ? {}
+    : {
+        [key in keyof TConfigSchema]: z.infer<ReturnType<TConfigSchema[key]>>;
+      };
+  configInput: string extends keyof TConfigSchema
+    ? {}
+    : z.input<
+        z.ZodObject<{
+          [key in keyof TConfigSchema]: ReturnType<TConfigSchema[key]>;
+        }>
+      >;
+  output: UOutput;
+  inputs: TInputs;
+  kind: string | undefined extends TKind ? undefined : TKind;
+  namespace: string | undefined extends TNamespace ? undefined : TNamespace;
+  name: string | undefined extends TName ? undefined : TName;
+}>;
+/**
+ * @public
+ * @deprecated namespace is no longer required, you can safely remove this option and it will default to the `pluginId`. It will be removed in a future release.
+ */
+export function createExtension<
+  UOutput extends AnyExtensionDataRef,
+  TInputs extends {
+    [inputName in string]: ExtensionInput<
+      AnyExtensionDataRef,
+      { optional: boolean; singleton: boolean }
+    >;
+  },
+  TConfigSchema extends { [key: string]: (zImpl: typeof z) => z.ZodType },
+  UFactoryOutput extends ExtensionDataValue<any, any>,
+  const TKind extends string | undefined = undefined,
+  const TNamespace extends string | undefined = undefined,
+  const TName extends string | undefined = undefined,
+>(
+  options: CreateExtensionOptions<
+    TKind,
+    TNamespace,
+    TName,
+    UOutput,
+    TInputs,
+    TConfigSchema,
+    UFactoryOutput
+  >,
+): ExtensionDefinition<{
+  config: string extends keyof TConfigSchema
+    ? {}
+    : {
+        [key in keyof TConfigSchema]: z.infer<ReturnType<TConfigSchema[key]>>;
+      };
+  configInput: string extends keyof TConfigSchema
+    ? {}
+    : z.input<
+        z.ZodObject<{
+          [key in keyof TConfigSchema]: ReturnType<TConfigSchema[key]>;
+        }>
+      >;
+  output: UOutput;
+  inputs: TInputs;
+  kind: string | undefined extends TKind ? undefined : TKind;
+  namespace: string | undefined extends TNamespace ? undefined : TNamespace;
+  name: string | undefined extends TName ? undefined : TName;
+}>;
 export function createExtension<
   UOutput extends AnyExtensionDataRef,
   TInputs extends {
diff --git a/packages/frontend-plugin-api/src/wiring/createExtensionBlueprint.ts b/packages/frontend-plugin-api/src/wiring/createExtensionBlueprint.ts
index de788473b5..f67b30c8df 100644
--- a/packages/frontend-plugin-api/src/wiring/createExtensionBlueprint.ts
+++ b/packages/frontend-plugin-api/src/wiring/createExtensionBlueprint.ts
@@ -57,7 +57,6 @@ export type CreateExtensionBlueprintOptions<
   TDataRefs extends { [name in string]: AnyExtensionDataRef },
 > = {
   kind: TKind;
-  /** @deprecated namespace is no longer required, you can safely remove this option and it will default to the `pluginId`. It will be removed in a future release. */
   namespace?: TNamespace;
   attachTo: { id: string; input: string };
   disabled?: boolean;
@@ -112,7 +111,25 @@ export interface ExtensionBlueprint<
     TNewNamespace extends string | undefined,
     TNewName extends string | undefined,
   >(args: {
-    /** @deprecated namespace is no longer required, you can safely remove this option and it will default to the `pluginId`. It will be removed in a future release. */
+    namespace?: undefined;
+    name?: TNewName;
+    attachTo?: { id: string; input: string };
+    disabled?: boolean;
+    params: T['params'];
+  }): ExtensionDefinition<{
+    kind: T['kind'];
+    namespace: undefined;
+    name: string | undefined extends TNewName ? T['name'] : TNewName;
+    config: T['config'];
+    configInput: T['configInput'];
+    output: T['output'];
+    inputs: T['inputs'];
+  }>;
+  /** @deprecated namespace is no longer required, you can safely remove this option and it will default to the `pluginId`. It will be removed in a future release. */
+  make<
+    TNewNamespace extends string | undefined,
+    TNewName extends string | undefined,
+  >(args: {
     namespace?: TNewNamespace;
     name?: TNewName;
     attachTo?: { id: string; input: string };
@@ -151,8 +168,88 @@ export interface ExtensionBlueprint<
       >;
     },
   >(args: {
-    /** @deprecated namespace is no longer required, you can safely remove this option and it will default to the `pluginId`. It will be removed in a future release. */
-    namespace?: TNewNamespace;
+    namespace?: undefined;
+    name?: TNewName;
+    attachTo?: { id: string; input: string };
+    disabled?: boolean;
+    inputs?: TExtraInputs & {
+      [KName in keyof T['inputs']]?: `Error: Input '${KName &
+        string}' is already defined in parent definition`;
+    };
+    output?: Array<UNewOutput>;
+    config?: {
+      schema: TExtensionConfigSchema & {
+        [KName in keyof T['config']]?: `Error: Config key '${KName &
+          string}' is already defined in parent schema`;
+      };
+    };
+    factory(
+      originalFactory: (
+        params: T['params'],
+        context?: {
+          config?: T['config'];
+          inputs?: ResolveInputValueOverrides<NonNullable<T['inputs']>>;
+        },
+      ) => ExtensionDataContainer<NonNullable<T['output']>>,
+      context: {
+        node: AppNode;
+        apis: ApiHolder;
+        config: T['config'] & {
+          [key in keyof TExtensionConfigSchema]: z.infer<
+            ReturnType<TExtensionConfigSchema[key]>
+          >;
+        };
+        inputs: Expand<ResolvedExtensionInputs<T['inputs'] & TExtraInputs>>;
+      },
+    ): Iterable<UFactoryOutput> &
+      VerifyExtensionFactoryOutput<
+        AnyExtensionDataRef extends UNewOutput
+          ? NonNullable<T['output']>
+          : UNewOutput,
+        UFactoryOutput
+      >;
+  }): ExtensionDefinition<{
+    config: (string extends keyof TExtensionConfigSchema
+      ? {}
+      : {
+          [key in keyof TExtensionConfigSchema]: z.infer<
+            ReturnType<TExtensionConfigSchema[key]>
+          >;
+        }) &
+      T['config'];
+    configInput: (string extends keyof TExtensionConfigSchema
+      ? {}
+      : z.input<
+          z.ZodObject<{
+            [key in keyof TExtensionConfigSchema]: ReturnType<
+              TExtensionConfigSchema[key]
+            >;
+          }>
+        >) &
+      T['configInput'];
+    output: AnyExtensionDataRef extends UNewOutput ? T['output'] : UNewOutput;
+    inputs: T['inputs'] & TExtraInputs;
+    kind: T['kind'];
+    namespace: undefined;
+    name: string | undefined extends TNewName ? T['name'] : TNewName;
+  }>;
+  /** @deprecated namespace is no longer required, you can safely remove this option and it will default to the `pluginId`. It will be removed in a future release. */
+  makeWithOverrides<
+    TNewNamespace extends string | undefined,
+    TNewName extends string | undefined,
+    TExtensionConfigSchema extends {
+      [key in string]: (zImpl: typeof z) => z.ZodType;
+    },
+    UFactoryOutput extends ExtensionDataValue<any, any>,
+    UNewOutput extends AnyExtensionDataRef,
+    TExtraInputs extends {
+      [inputName in string]: ExtensionInput<
+        AnyExtensionDataRef,
+        { optional: boolean; singleton: boolean }
+      >;
+    },
+  >(args: {
+    namespace: TNewNamespace;
     name?: TNewName;
     attachTo?: { id: string; input: string };
     disabled?: boolean;
@@ -227,6 +324,56 @@ export interface ExtensionBlueprint<
  *
  * @public
  */
+export function createExtensionBlueprint<
+  TParams extends object,
+  UOutput extends AnyExtensionDataRef,
+  TInputs extends {
+    [inputName in string]: ExtensionInput<
+      AnyExtensionDataRef,
+      { optional: boolean; singleton: boolean }
+    >;
+  },
+  TConfigSchema extends { [key in string]: (zImpl: typeof z) => z.ZodType },
+  UFactoryOutput extends ExtensionDataValue<any, any>,
+  TKind extends string,
+  TNamespace extends undefined = undefined,
+  TName extends string | undefined = undefined,
+  TDataRefs extends { [name in string]: AnyExtensionDataRef } = never,
+>(
+  options: CreateExtensionBlueprintOptions<
+    TKind,
+    undefined,
+    TName,
+    TParams,
+    UOutput,
+    TInputs,
+    TConfigSchema,
+    UFactoryOutput,
+    TDataRefs
+  >,
+): ExtensionBlueprint<{
+  kind: TKind;
+  namespace: undefined;
+  name: TName;
+  params: TParams;
+  output: UOutput;
+  inputs: string extends keyof TInputs ? {} : TInputs;
+  config: string extends keyof TConfigSchema
+    ? {}
+    : { [key in keyof TConfigSchema]: z.infer<ReturnType<TConfigSchema[key]>> };
+  configInput: string extends keyof TConfigSchema
+    ? {}
+    : z.input<
+        z.ZodObject<{
+          [key in keyof TConfigSchema]: ReturnType<TConfigSchema[key]>;
+        }>
+      >;
+  dataRefs: TDataRefs;
+}>;
+/**
+ * @public
+ * @deprcated the namespace is no longer required, you can safely remove this option and it will default to the `pluginId`. It will be removed in a future release.
+ */
 export function createExtensionBlueprint<
   TParams extends object,
   UOutput extends AnyExtensionDataRef,
diff --git a/packages/frontend-plugin-api/src/wiring/resolveExtensionDefinition.ts b/packages/frontend-plugin-api/src/wiring/resolveExtensionDefinition.ts
index a6be1ded97..5a631819d7 100644
--- a/packages/frontend-plugin-api/src/wiring/resolveExtensionDefinition.ts
+++ b/packages/frontend-plugin-api/src/wiring/resolveExtensionDefinition.ts
@@ -162,13 +162,6 @@ export function resolveExtensionDefinition<
 
   const id = kind ? `${kind}:${namePart}` : namePart;
 
-  if (internalDefinition.namespace) {
-    // eslint-disable-next-line no-console
-    console.warn(
-      `Extension ${id} has a deprecated namespace set, this option is no longer required, and should be removed from createExtensionBlueprint or createExtension. It will be automatically set from the pluginId when installing extensions using createFrontendModule and createFrontendPlugin`,
-    );
-  }
-
   return {
     ...rest,
     $$type: '@backstage/Extension',