diff --git a/integration/flat-routes-test.ts b/integration/flat-routes-test.ts
index 0b4b6b6aab6..9254ca16ee5 100644
--- a/integration/flat-routes-test.ts
+++ b/integration/flat-routes-test.ts
@@ -5,7 +5,6 @@ import { PlaywrightFixture } from "./helpers/playwright-fixture";
 import type { Fixture, AppFixture } from "./helpers/create-fixture";
 import { createFixtureProject } from "./helpers/create-fixture";
 import { createAppFixture, createFixture, js } from "./helpers/create-fixture";
-import { flatRoutesWarning } from "../packages/remix-dev/config";
 
 let fixture: Fixture;
 let appFixture: AppFixture;
@@ -148,52 +147,6 @@ test.describe("flat routes", () => {
   }
 });
 
-test.describe("warns when v1 routesConvention is used", () => {
-  let buildStdio = new PassThrough();
-  let buildOutput: string;
-
-  let originalConsoleLog = console.log;
-  let originalConsoleWarn = console.warn;
-  let originalConsoleError = console.error;
-
-  test.beforeAll(async () => {
-    console.log = () => {};
-    console.warn = () => {};
-    console.error = () => {};
-    await createFixtureProject({
-      buildStdio,
-      future: { v2_routeConvention: false },
-      files: {
-        "routes/index.tsx": js`
-          export default function () {
-            return <p>routes/index</p>;
-          }
-        `,
-      },
-    });
-
-    let chunks: Buffer[] = [];
-    buildOutput = await new Promise<string>((resolve, reject) => {
-      buildStdio.on("data", (chunk) => chunks.push(Buffer.from(chunk)));
-      buildStdio.on("error", (err) => reject(err));
-      buildStdio.on("end", () =>
-        resolve(Buffer.concat(chunks).toString("utf8"))
-      );
-    });
-  });
-
-  test.afterAll(() => {
-    console.log = originalConsoleLog;
-    console.warn = originalConsoleWarn;
-    console.error = originalConsoleError;
-  });
-
-  test("warns about conflicting routes", () => {
-    console.log(buildOutput);
-    expect(buildOutput).toContain(flatRoutesWarning);
-  });
-});
-
 test.describe("emits warnings for route conflicts", async () => {
   let buildStdio = new PassThrough();
   let buildOutput: string;
diff --git a/integration/tsconfig.json b/integration/tsconfig.json
index d2215944147..b8fd6c97ac7 100644
--- a/integration/tsconfig.json
+++ b/integration/tsconfig.json
@@ -17,7 +17,6 @@
     "rootDir": "."
   },
   "references": [
-    { "path": "../packages/remix-dev" },
     { "path": "../packages/remix-express" },
     { "path": "../packages/remix-react" },
     { "path": "../packages/remix-server-runtime" }
diff --git a/packages/remix-dev/__tests__/create-test.ts b/packages/remix-dev/__tests__/create-test.ts
index 4508ac91907..4a0fbed9768 100644
--- a/packages/remix-dev/__tests__/create-test.ts
+++ b/packages/remix-dev/__tests__/create-test.ts
@@ -8,7 +8,6 @@ import stripAnsi from "strip-ansi";
 
 import { run } from "../cli/run";
 import { server } from "./msw";
-import { flatRoutesWarning } from "../config";
 
 beforeAll(() => server.listen({ onUnhandledRequest: "error" }));
 afterAll(() => server.close());
@@ -348,9 +347,7 @@ describe("the create command", () => {
       "--no-typescript",
     ]);
     expect(output.trim()).toBe(
-      flatRoutesWarning +
-        "\n\n" +
-        getOptOutOfInstallMessage() +
+      getOptOutOfInstallMessage() +
         "\n\n" +
         getSuccessMessage(path.join("<TEMP_DIR>", "template-to-js"))
     );
diff --git a/packages/remix-dev/config.ts b/packages/remix-dev/config.ts
index 8686777438a..4c6f161eb86 100644
--- a/packages/remix-dev/config.ts
+++ b/packages/remix-dev/config.ts
@@ -560,14 +560,9 @@ export async function readConfig(
     root: { path: "", id: "root", file: rootRouteFile },
   };
 
-  let routesConvention: typeof flatRoutes;
-
-  if (appConfig.future?.v2_routeConvention) {
-    routesConvention = flatRoutes;
-  } else {
-    warnOnce(flatRoutesWarning, "v2_routeConvention");
-    routesConvention = defineConventionalRoutes;
-  }
+  let routesConvention = appConfig.future?.v2_routeConvention
+    ? flatRoutes
+    : defineConventionalRoutes;
 
   if (fse.existsSync(path.resolve(appDirectory, "routes"))) {
     let conventionalRoutes = routesConvention(
@@ -731,6 +726,4 @@ let listFormat = new Intl.ListFormat("en", {
   type: "conjunction",
 });
 
-export let serverBuildTargetWarning = `⚠️ DEPRECATED: The "serverBuildTarget" config option is deprecated. Use a combination of "publicPath", "serverBuildPath", "serverConditions", "serverDependenciesToBundle", "serverMainFields", "serverMinify", "serverModuleFormat" and/or "serverPlatform" instead.`;
-
-export let flatRoutesWarning = `⚠️ DEPRECATED: The old nested folders route convention has been deprecated in favor of "flat routes".  Please enable the new routing convention via the \`future.v2_routeConvention\` flag in your \`remix.config.js\` file.  For more information, please see https://remix.run/docs/en/main/file-conventions/route-files-v2.`;
+export let serverBuildTargetWarning = `The "serverBuildTarget" config option is deprecated. Use a combination of "publicPath", "serverBuildPath", "serverConditions", "serverDependenciesToBundle", "serverMainFields", "serverMinify", "serverModuleFormat" and/or "serverPlatform" instead.`;