diff --git a/.changeset/twelve-seahorses-arrive.md b/.changeset/twelve-seahorses-arrive.md
new file mode 100644
index 00000000000..f848f645bbe
--- /dev/null
+++ b/.changeset/twelve-seahorses-arrive.md
@@ -0,0 +1,9 @@
+---
+"remix": patch
+"@remix-run/dev": patch
+"@remix-run/react": patch
+"@remix-run/serve": patch
+"@remix-run/server-runtime": patch
+---
+
+sync `FutureConfig` interface between packages
diff --git a/packages/remix-react/entry.ts b/packages/remix-react/entry.ts
index 40b5653a783..cc715485c78 100644
--- a/packages/remix-react/entry.ts
+++ b/packages/remix-react/entry.ts
@@ -19,14 +19,23 @@ export interface EntryContext extends RemixContextObject {
   staticHandlerContext: StaticHandlerContext;
 }
 
+type Dev = {
+  port?: number;
+  appServerPort?: number;
+  remixRequestHandlerPath?: string;
+  rebuildPollIntervalMs?: number;
+};
+
 export interface FutureConfig {
   unstable_cssModules: boolean;
   unstable_cssSideEffectImports: boolean;
+  unstable_dev: boolean | Dev;
   unstable_postcss: boolean;
   unstable_tailwind: boolean;
   unstable_vanillaExtract: boolean;
   v2_errorBoundary: boolean;
   v2_meta: boolean;
+  v2_routeConvention: boolean;
 }
 
 export interface AssetsManifest {
diff --git a/packages/remix-server-runtime/entry.ts b/packages/remix-server-runtime/entry.ts
index 5841fd60101..f5519ea7c5a 100644
--- a/packages/remix-server-runtime/entry.ts
+++ b/packages/remix-server-runtime/entry.ts
@@ -11,15 +11,23 @@ export interface EntryContext {
   future: FutureConfig;
 }
 
+type Dev = {
+  port?: number;
+  appServerPort?: number;
+  remixRequestHandlerPath?: string;
+  rebuildPollIntervalMs?: number;
+};
+
 export interface FutureConfig {
-  unstable_cssModules: true;
+  unstable_cssModules: boolean;
   unstable_cssSideEffectImports: boolean;
-  unstable_dev: false | { remixRequestHandlerPath?: string };
+  unstable_dev: boolean | Dev;
   unstable_postcss: boolean;
   unstable_tailwind: boolean;
   unstable_vanillaExtract: boolean;
   v2_errorBoundary: boolean;
   v2_meta: boolean;
+  v2_routeConvention: boolean;
 }
 
 export interface AssetsManifest {
diff --git a/packages/remix-server-runtime/server.ts b/packages/remix-server-runtime/server.ts
index de337434b76..0e1b398bd82 100644
--- a/packages/remix-server-runtime/server.ts
+++ b/packages/remix-server-runtime/server.ts
@@ -55,7 +55,7 @@ export const createRequestHandler: CreateRequestHandlerFunction = (
     let { unstable_dev } = build.future;
     if (
       mode === "development" &&
-      unstable_dev !== false &&
+      typeof unstable_dev !== "boolean" &&
       url.pathname ===
         (unstable_dev.remixRequestHandlerPath ?? "") +
           "/__REMIX_ASSETS_MANIFEST"
diff --git a/packages/remix-testing/create-remix-stub.tsx b/packages/remix-testing/create-remix-stub.tsx
index 08c6d735f48..de1429be54a 100644
--- a/packages/remix-testing/create-remix-stub.tsx
+++ b/packages/remix-testing/create-remix-stub.tsx
@@ -65,11 +65,13 @@ export function createRemixStub(routes: (RouteObject | DataRouteObject)[]) {
         future: {
           unstable_cssModules: false,
           unstable_cssSideEffectImports: false,
+          unstable_dev: false,
           unstable_postcss: false,
           unstable_tailwind: false,
           unstable_vanillaExtract: false,
           v2_errorBoundary: false,
           v2_meta: false,
+          v2_routeConvention: false,
           ...remixConfigFuture,
         },
         manifest: createManifest(routerRef.current.routes),