diff --git a/packages/typespec-ts/src/framework/hooks/binder.ts b/packages/typespec-ts/src/framework/hooks/binder.ts
index a1137e62d0..075f0544a5 100644
--- a/packages/typespec-ts/src/framework/hooks/binder.ts
+++ b/packages/typespec-ts/src/framework/hooks/binder.ts
@@ -50,7 +50,6 @@ class BinderImp implements Binder {
   private project: Project;
   private dependencies: Record<string, ReferenceableSymbol>;
   private staticHelpers: Map<string, StaticHelperMetadata>;
-  private useSubpathImports: boolean;
 
   constructor(project: Project, options: BinderOptions = {}) {
     this.project = project;
@@ -58,7 +57,6 @@ class BinderImp implements Binder {
     provideDependencies(options.dependencies);
     this.staticHelpers = options.staticHelpers ?? new Map();
     this.dependencies = useDependencies();
-    this.useSubpathImports = options.useSubpathImports ?? false;
   }
 
   trackDeclaration(refkey: unknown, name: string, sourceFile: SourceFile): string {
@@ -185,27 +183,6 @@ class BinderImp implements Binder {
     return importSpecifier;
   }
 
-  /**
-   * Returns the #platform/ subpath import specifier for a static helper file
-   * that has a polyfill variant (-browser.mts or -react-native.mts sibling),
-   * or undefined if subpath imports are disabled or no variant exists.
-   * e.g. "src/static-helpers/serialization/get-binary-response.ts"
-   *   -> "#platform/static-helpers/serialization/get-binary-response"
-   */
-  private getPlatformImportSpecifier(declarationSourceFile: SourceFile): string | undefined {
-    if (!this.useSubpathImports) return undefined;
-    const filePath = declarationSourceFile.getFilePath();
-    const srcIndex = filePath.indexOf("/src/");
-    if (srcIndex === -1) return undefined;
-    // Check if a -browser.mts or -react-native.mts sibling exists
-    const basePath = filePath.replace(/\.ts$/, "");
-    const hasBrowserVariant = this.project.getSourceFile(basePath + "-browser.mts");
-    const hasReactNativeVariant = this.project.getSourceFile(basePath + "-react-native.mts");
-    if (!hasBrowserVariant && !hasReactNativeVariant) return undefined;
-    const relativePath = filePath.substring(srcIndex + "/src/".length);
-    return "#platform/" + relativePath.replace(/\.ts$/, "");
-  }
-
   /**
    * Applies all tracked imports to their respective source files.
    */
@@ -316,9 +293,7 @@ class BinderImp implements Binder {
 
       if (file !== declarationSourceFile) {
         this.trackReference(declarationKey, file);
-        // Use #platform/ subpath import specifier for static helpers in warp packages
-        const platformSpecifier = this.getPlatformImportSpecifier(declarationSourceFile);
-        const importTarget = platformSpecifier ?? declarationSourceFile;
+        const importTarget = declarationSourceFile;
         const importDec = this.addImport(file, importTarget, name);
         name = importDec.alias ?? name;
       }
diff --git a/packages/typespec-ts/src/framework/load-static-helpers.ts b/packages/typespec-ts/src/framework/load-static-helpers.ts
index 6d18b92214..2351f58959 100644
--- a/packages/typespec-ts/src/framework/load-static-helpers.ts
+++ b/packages/typespec-ts/src/framework/load-static-helpers.ts
@@ -13,6 +13,7 @@ import { ModularEmitterOptions } from "../modular/interfaces.js";
 import { resolveProjectRoot } from "../utils/resolve-project-root.js";
 import { refkey } from "./refkey.js";
 export const SourceFileSymbol = Symbol("SourceFile");
+
 export interface StaticHelperMetadata {
   name: string;
   kind: "function" | "interface" | "typeAlias" | "class" | "enum";
@@ -95,10 +96,10 @@ export async function loadStaticHelpers(
         overwrite: true,
       });
       addedFile.getImportDeclarations().map((i) => {
-        // Rewrite relative platform-types imports to #platform/ specifiers
-        // so that browser/react-native variants are resolved via subpath imports.
-        // Only rewrite imports to the default variant (not -browser/-react-native variants
-        // which are already platform-specific direct imports).
+        // Rewrite relative platform-types imports to @azure/core-rest-pipeline for azure packages
+        // (NodeReadableStream is now exported directly from @azure/core-rest-pipeline).
+        // Non-azure packages keep the relative import to the local platform-types.ts.
+
         const specifier = i.getModuleSpecifierValue();
         if (
           specifier.startsWith(".") &&
@@ -106,10 +107,9 @@ export async function loadStaticHelpers(
           !specifier.includes("-browser") &&
           !specifier.includes("-react-native")
         ) {
-          i.setModuleSpecifier("#platform/static-helpers/platform-types");
+          i.setModuleSpecifier("@azure/core-rest-pipeline");
         }
       });
-
       for (const entry of Object.values(helpers)) {
         if (!addedFile.getFilePath().endsWith(entry.location)) {
           continue;
diff --git a/packages/typespec-ts/src/index.ts b/packages/typespec-ts/src/index.ts
index 469b215404..af4c494f5c 100644
--- a/packages/typespec-ts/src/index.ts
+++ b/packages/typespec-ts/src/index.ts
@@ -23,7 +23,6 @@ import {
   CreateRecorderHelpers,
   MultipartHelpers,
   PagingHelpers,
-  PlatformTypeHelpers,
   PollingHelpers,
   SerializationHelpers,
   SimplePollerHelpers,
@@ -75,7 +74,7 @@ import {
 import { Project } from "ts-morph";
 import { provideBinder } from "./framework/hooks/binder.js";
 import { provideSdkTypes } from "./framework/hooks/sdk-types.js";
-import { loadStaticHelpers } from "./framework/load-static-helpers.js";
+import { loadStaticHelpers, type StaticHelpers } from "./framework/load-static-helpers.js";
 import { EmitterOptions } from "./lib.js";
 import { buildClassicalClient } from "./modular/build-classical-client.js";
 import { buildClassicOperationFiles } from "./modular/build-classical-operation-groups.js";
@@ -148,12 +147,11 @@ export async function $onEmit(context: EmitContext) {
       ...SimplePollerHelpers,
       ...UrlTemplateHelpers,
       ...MultipartHelpers,
-      ...PlatformTypeHelpers,
       ...CloudSettingHelpers,
       ...XmlHelpers,
       ...(rlcOptions.generateTest ? CreateRecorderHelpers : {}),
       ...(rlcOptions.enableStorageCompat ? StorageCompatHelpers : {}),
-    },
+    } as unknown as StaticHelpers,
     {
       sourcesDir: dpgContext.generationPathDetail?.modularSourcesDir,
       rootDir: dpgContext.generationPathDetail?.rootDir,
@@ -174,7 +172,6 @@ export async function $onEmit(context: EmitContext) {
     dependencies: {
       ...extraDependencies,
     },
-    useSubpathImports: true,
   });
   provideSdkTypes(dpgContext);
 
diff --git a/packages/typespec-ts/src/modular/build-root-index.ts b/packages/typespec-ts/src/modular/build-root-index.ts
index 07fcb5482e..5942171d01 100644
--- a/packages/typespec-ts/src/modular/build-root-index.ts
+++ b/packages/typespec-ts/src/modular/build-root-index.ts
@@ -9,15 +9,11 @@ import { getModularClientOptions } from "../utils/client-utils.js";
 import { SdkContext } from "../utils/interfaces.js";
 import { getMethodHierarchiesMap } from "../utils/operation-util.js";
 import { partitionAndEmitExports } from "./build-subpath-index.js";
+import { AzureCoreDependencies } from "./external-dependencies.js";
 import { getClassicalClientName } from "./helpers/naming-helpers.js";
 import { isLroOnlyOperation } from "./helpers/operation-helpers.js";
 import { ModularEmitterOptions } from "./interfaces.js";
-import {
-  CloudSettingHelpers,
-  MultipartHelpers,
-  PagingHelpers,
-  PlatformTypeHelpers,
-} from "./static-helpers-metadata.js";
+import { CloudSettingHelpers, MultipartHelpers, PagingHelpers } from "./static-helpers-metadata.js";
 
 export function buildRootIndex(
   context: SdkContext,
@@ -157,7 +153,7 @@ function exportFileContentsType(context: SdkContext, rootIndexFile: SourceFile)
       rootIndexFile,
       [
         resolveReference(MultipartHelpers.FileContents),
-        resolveReference(PlatformTypeHelpers.NodeReadableStream),
+        resolveReference(AzureCoreDependencies["NodeReadableStream"]),
       ],
       true,
     );
diff --git a/packages/typespec-ts/src/modular/external-dependencies.ts b/packages/typespec-ts/src/modular/external-dependencies.ts
index da36ad7c12..d7492dc7fd 100644
--- a/packages/typespec-ts/src/modular/external-dependencies.ts
+++ b/packages/typespec-ts/src/modular/external-dependencies.ts
@@ -207,6 +207,16 @@ export const AzureCoreDependencies: CoreDependencies = {
     name: "ErrorResponse",
     module: "@azure-rest/core-client",
   },
+  getBinaryStreamResponse: {
+    kind: "externalDependency",
+    module: "@azure-rest/core-client",
+    name: "getBinaryStreamResponse",
+  },
+  NodeReadableStream: {
+    kind: "externalDependency",
+    module: "@azure/core-rest-pipeline",
+    name: "NodeReadableStream",
+  },
 };
 
 export const AzureIdentityDependencies = {
diff --git a/packages/typespec-ts/src/modular/helpers/operation-helpers.ts b/packages/typespec-ts/src/modular/helpers/operation-helpers.ts
index 0f474c2f65..15c17d8d77 100644
--- a/packages/typespec-ts/src/modular/helpers/operation-helpers.ts
+++ b/packages/typespec-ts/src/modular/helpers/operation-helpers.ts
@@ -48,7 +48,7 @@ import {
   KnownCollectionFormat,
   ServiceOperation,
 } from "../../utils/operation-util.js";
-import { AzurePollingDependencies } from "../external-dependencies.js";
+import { AzureCoreDependencies, AzurePollingDependencies } from "../external-dependencies.js";
 import {
   buildModelDeserializer,
   buildPropertyDeserializer,
@@ -70,7 +70,6 @@ import {
 } from "../serialization/serialize-utils.js";
 import {
   PagingHelpers,
-  PlatformTypeHelpers,
   PollingHelpers,
   SerializationHelpers,
   StorageCompatHelpers,
@@ -1043,7 +1042,7 @@ export function getOperationFunction(
     statements.push(`const ${streamableMethodVarName} = _${name}Send(${sendParameterList});`);
     const binaryHelper =
       wrapReturn && wrapReturnIsBinary
-        ? SerializationHelpers.getBinaryStreamResponse
+        ? AzureCoreDependencies["getBinaryStreamResponse"]
         : SerializationHelpers.getBinaryResponse;
     statements.push(
       `const ${resultVarName} = await ${resolveReference(binaryHelper)}(${streamableMethodVarName});`,
@@ -3003,7 +3002,7 @@ export function buildNonModelResponseTypeDeclaration(
   let typeBody: string;
 
   if (isBinary) {
-    const nodeReadableStreamRef = resolveReference(PlatformTypeHelpers.NodeReadableStream);
+    const nodeReadableStreamRef = resolveReference(AzureCoreDependencies["NodeReadableStream"]);
     typeBody = `{
       /**
        * BROWSER ONLY
diff --git a/packages/typespec-ts/src/modular/static-helpers-metadata.ts b/packages/typespec-ts/src/modular/static-helpers-metadata.ts
index fdb7821057..1736683424 100644
--- a/packages/typespec-ts/src/modular/static-helpers-metadata.ts
+++ b/packages/typespec-ts/src/modular/static-helpers-metadata.ts
@@ -59,11 +59,6 @@ export const SerializationHelpers = {
     name: "getBinaryResponse",
     location: "serialization/get-binary-response.ts",
   },
-  getBinaryStreamResponse: {
-    kind: "function",
-    name: "getBinaryStreamResponse",
-    location: "serialization/get-binary-stream-response.ts",
-  },
   areAllPropsUndefined: {
     kind: "function",
     name: "areAllPropsUndefined",
@@ -150,14 +145,6 @@ export const MultipartHelpers = {
   },
 } as const;
 
-export const PlatformTypeHelpers = {
-  NodeReadableStream: {
-    kind: "typeAlias",
-    name: "NodeReadableStream",
-    location: "platform-types.ts",
-  },
-} as const;
-
 export const CloudSettingHelpers = {
   AzureClouds: {
     kind: "enum",
diff --git a/packages/typespec-ts/src/rlc-common/metadata/build-package-file.ts b/packages/typespec-ts/src/rlc-common/metadata/build-package-file.ts
index 34dd7f0df7..61e38786d8 100644
--- a/packages/typespec-ts/src/rlc-common/metadata/build-package-file.ts
+++ b/packages/typespec-ts/src/rlc-common/metadata/build-package-file.ts
@@ -131,9 +131,6 @@ export function updatePackageFile(
   // Update Core Client dependency
   if (needsCoreClientUpdate) {
     delete deps["@azure/core-client"];
-    if (!("@azure-rest/core-client" in deps)) {
-      deps["@azure-rest/core-client"] = "^2.3.1";
-    }
     packageInfo.dependencies = deps;
   }
 
@@ -146,6 +143,12 @@ export function updatePackageFile(
     };
   }
 
+  packageInfo.dependencies = {
+    ...packageInfo.dependencies,
+    "@azure/core-rest-pipeline": "^1.24.0",
+    "@azure-rest/core-client": "^2.7.0",
+  };
+
   // Update constantPaths metadata for Azure packages
   if (needsConstantPathsUpdate && packageInfo["//metadata"]) {
     const metadata = packageInfo["//metadata"];
diff --git a/packages/typespec-ts/src/rlc-common/metadata/package-json/build-azure-monorepo-package.ts b/packages/typespec-ts/src/rlc-common/metadata/package-json/build-azure-monorepo-package.ts
index 46e154eb60..ff50a99975 100644
--- a/packages/typespec-ts/src/rlc-common/metadata/package-json/build-azure-monorepo-package.ts
+++ b/packages/typespec-ts/src/rlc-common/metadata/package-json/build-azure-monorepo-package.ts
@@ -32,7 +32,7 @@ export function getAzureMonorepoDependencies(config: AzureMonorepoInfoConfig) {
   // revert this change after sdk repo update.
   const runtimeDeps = {
     ...dependencies,
-    "@azure-rest/core-client": "^2.3.1",
+    "@azure-rest/core-client": "^2.7.0",
     ...(hasLro && {
       "@azure/abort-controller": "^2.1.2",
     }),
@@ -40,7 +40,7 @@ export function getAzureMonorepoDependencies(config: AzureMonorepoInfoConfig) {
     ...(hasLro && {
       "@azure/core-lro": "^3.1.0",
     }),
-    "@azure/core-rest-pipeline": "^1.20.0",
+    "@azure/core-rest-pipeline": "^1.24.0",
     "@azure/core-util": "^1.12.0",
     "@azure/logger": "^1.2.0",
     tslib: "^2.8.1",
diff --git a/packages/typespec-ts/src/rlc-common/metadata/package-json/package-common.ts b/packages/typespec-ts/src/rlc-common/metadata/package-json/package-common.ts
index 32483bc909..14520bc8cd 100644
--- a/packages/typespec-ts/src/rlc-common/metadata/package-json/package-common.ts
+++ b/packages/typespec-ts/src/rlc-common/metadata/package-json/package-common.ts
@@ -45,26 +45,11 @@ function getEntryPointInformation(config: PackageCommonInfoConfig) {
     module: "./dist/esm/index.js",
     types: "./dist/commonjs/index.d.ts",
     browser: "./dist/browser/index.js",
-    imports: {
-      "#platform/*": {
-        browser: "./src/*-browser.mts",
-        default: "./src/*.ts",
-      } as Record<string, string>,
-    },
     exports: resolveWarpExports(config.exports, config.generateReactNativeTarget),
   };
 
   if (config.generateReactNativeTarget) {
     result["react-native"] = "./dist/react-native/index.js";
-    (result["imports"]["#platform/*"] as Record<string, string>)["react-native"] =
-      "./src/*-react-native.mts";
-    // Reorder so react-native comes before default
-    const importsEntry = result["imports"]["#platform/*"] as Record<string, string>;
-    result["imports"]["#platform/*"] = {
-      browser: importsEntry["browser"],
-      "react-native": importsEntry["react-native"],
-      default: importsEntry["default"],
-    };
   }
 
   return result;
diff --git a/packages/typespec-ts/static/static-helpers/platform-types-browser.mts b/packages/typespec-ts/static/static-helpers/platform-types-browser.mts
deleted file mode 100644
index 6b6410ced0..0000000000
--- a/packages/typespec-ts/static/static-helpers/platform-types-browser.mts
+++ /dev/null
@@ -1,5 +0,0 @@
-/**
- * Browser platform variant — NodeReadableStream resolves to `never`
- * so it drops out of union types and optional properties become effectively absent.
- */
-export type NodeReadableStream = never;
diff --git a/packages/typespec-ts/static/static-helpers/platform-types-react-native.mts b/packages/typespec-ts/static/static-helpers/platform-types-react-native.mts
deleted file mode 100644
index e13cb8e69b..0000000000
--- a/packages/typespec-ts/static/static-helpers/platform-types-react-native.mts
+++ /dev/null
@@ -1,5 +0,0 @@
-/**
- * React Native platform variant — NodeReadableStream resolves to `never`
- * so it drops out of union types and optional properties become effectively absent.
- */
-export type NodeReadableStream = never;
diff --git a/packages/typespec-ts/static/static-helpers/serialization/get-binary-stream-response-browser.mts b/packages/typespec-ts/static/static-helpers/serialization/get-binary-stream-response-browser.mts
deleted file mode 100644
index dbdf3faf77..0000000000
--- a/packages/typespec-ts/static/static-helpers/serialization/get-binary-stream-response-browser.mts
+++ /dev/null
@@ -1,22 +0,0 @@
-import { HttpResponse, StreamableMethod } from "@azure-rest/core-client";
-import { NodeReadableStream } from "../platform-types-browser.mjs";
-
-/**
- * Resolves a StreamableMethod into a binary stream response using browser streaming.
- * Returns both the raw HttpResponse (for status/header inspection) and a blobBody Promise.
- * Error handling is left to the caller so that generated deserializers can apply
- * operation-specific error deserialization (per-status-code details, exception headers, etc.).
- */
-export async function getBinaryStreamResponse(streamableMethod: StreamableMethod): Promise<
-  HttpResponse & {
-    blobBody?: Promise<Blob>;
-    readableStreamBody?: NodeReadableStream;
-  }
-> {
-  const response = await streamableMethod.asBrowserStream();
-  return {
-    ...response,
-    blobBody: new Response(response.body).blob(),
-    readableStreamBody: undefined,
-  };
-}
diff --git a/packages/typespec-ts/static/static-helpers/serialization/get-binary-stream-response-react-native.mts b/packages/typespec-ts/static/static-helpers/serialization/get-binary-stream-response-react-native.mts
deleted file mode 100644
index d30a405be6..0000000000
--- a/packages/typespec-ts/static/static-helpers/serialization/get-binary-stream-response-react-native.mts
+++ /dev/null
@@ -1 +0,0 @@
-export { getBinaryStreamResponse } from "./get-binary-stream-response-browser.mjs";
diff --git a/packages/typespec-ts/static/static-helpers/serialization/get-binary-stream-response.ts b/packages/typespec-ts/static/static-helpers/serialization/get-binary-stream-response.ts
deleted file mode 100644
index ff37e55031..0000000000
--- a/packages/typespec-ts/static/static-helpers/serialization/get-binary-stream-response.ts
+++ /dev/null
@@ -1,22 +0,0 @@
-import { HttpResponse, StreamableMethod } from "@azure-rest/core-client";
-import { NodeReadableStream } from "../platform-types.js";
-
-/**
- * Resolves a StreamableMethod into a binary stream response using Node.js streaming.
- * Returns both the raw HttpResponse (for status/header inspection) and the readable stream body.
- * Error handling is left to the caller so that generated deserializers can apply
- * operation-specific error deserialization (per-status-code details, exception headers, etc.).
- */
-export async function getBinaryStreamResponse(streamableMethod: StreamableMethod): Promise<
-  HttpResponse & {
-    blobBody?: Promise<Blob>;
-    readableStreamBody?: NodeReadableStream;
-  }
-> {
-  const response = await streamableMethod.asNodeStream();
-  return {
-    ...response,
-    blobBody: undefined,
-    readableStreamBody: response.body,
-  };
-}
diff --git a/packages/typespec-ts/test-next/integration/load-static-files.test.ts b/packages/typespec-ts/test-next/integration/load-static-files.test.ts
index cb1b4df434..8b80208e86 100644
--- a/packages/typespec-ts/test-next/integration/load-static-files.test.ts
+++ b/packages/typespec-ts/test-next/integration/load-static-files.test.ts
@@ -73,7 +73,7 @@ describe("loadStaticHelpers", () => {
     ).rejects.toThrowError(/invalid helper kind/);
   });
 
-  it("should rewrite platform-types imports to #platform subpath without extension", async () => {
+  it("should rewrite platform-types imports to @azure/core-rest-pipeline for azure monorepo", async () => {
     const helpers = {
       usesPlatformImport: {
         kind: "function",
@@ -91,7 +91,7 @@ describe("loadStaticHelpers", () => {
       .getSourceFiles()
       .find((file) => file.getFilePath().endsWith("/static-helpers/platform-import.ts"));
     assert(sourceFile);
-    const importDecl = sourceFile.getImportDeclaration("#platform/static-helpers/platform-types");
+    const importDecl = sourceFile.getImportDeclaration("@azure/core-rest-pipeline");
     expect(importDecl).toBeDefined();
   });
 });
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index f0b8ee9c38..ca73224c56 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -40,7 +40,7 @@ catalogs:
       specifier: ^0.40.0
       version: 0.40.0
     '@azure-rest/core-client':
-      specifier: ^2.3.1
+      specifier: ^2.7.0
       version: 2.7.0
     '@azure/abort-controller':
       specifier: ^2.1.2
@@ -55,7 +55,7 @@ catalogs:
       specifier: ^1.5.0
       version: 1.6.2
     '@azure/core-rest-pipeline':
-      specifier: ^1.14.0
+      specifier: ^1.24.0
       version: 1.24.0
     '@azure/core-util':
       specifier: ^1.4.0
@@ -20613,7 +20613,7 @@ snapshots:
 
   '@types/sax@1.2.7':
     dependencies:
-      '@types/node': 24.13.2
+      '@types/node': 26.0.0
 
   '@types/semver@7.7.1': {}
 
diff --git a/pnpm-workspace.yaml b/pnpm-workspace.yaml
index d09806a4db..16f55e0358 100644
--- a/pnpm-workspace.yaml
+++ b/pnpm-workspace.yaml
@@ -35,12 +35,12 @@ catalog:
   "@astrojs/check": ^0.9.8
   "@astrojs/react": ^6.0.0
   "@astrojs/starlight": ^0.40.0
-  "@azure-rest/core-client": ^2.3.1
+  "@azure-rest/core-client": ^2.7.0
   "@azure/abort-controller": ^2.1.2
   "@azure/core-auth": ^1.6.0
   "@azure/core-lro": ^3.1.0
   "@azure/core-paging": ^1.5.0
-  "@azure/core-rest-pipeline": ^1.14.0
+  "@azure/core-rest-pipeline": ^1.24.0
   "@azure/core-util": ^1.4.0
   "@azure/identity": ^4.13.1
   "@azure/logger": ^1.0.4