diff --git a/CHANGELOG.md b/CHANGELOG.md
index 23b92ac5..97fbead6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -25,6 +25,9 @@ API.
 
 - **adaptv and `create-adaptv` are MIT-licensed.** They were `UNLICENSED`. `LICENSE` is at the repo
   root and in `packages/create-adaptv`.
+- **The router moves to its release with the preload fix** (TanStack Router 1.170.19, router core
+  1.171.16, Start 1.168.36), and adaptv's two in-memory engine edits are pinned to the matching
+  versions. See Fixed.
 - **Hovers and type errors show adaptv's type names, not the router's.** This covers `notFoundScreen`
   and `notFoundComponent` (`NotFoundScreenComponent`, `NotFoundScreenProps`), `notFound`
   (`NotFoundOptions`), `isRedirect` (`RouteRedirect`), the route DSL (`RouteNode`,
@@ -38,6 +41,12 @@ API.
   default without `!important`. A selector that targeted one of adaptv's Tailwind classes no longer
   matches; target the `data-adaptv` / `data-part` attributes instead.
 
+### Fixed
+
+- **Tapping a link while its route is still preloading no longer logs a `TypeError`.** The tap
+  navigated mid-preload; the navigation evicted the preloaded route from the cache, and the preload
+  then read the evicted entry (`match._nonReactive`). The navigation itself always worked.
+
 ## 0.1.0-alpha.1
 
 The first public alpha. Not published to npm yet: publishing waits on approval, and until then the
diff --git a/package.json b/package.json
index 295312b1..dd03a1e9 100644
--- a/package.json
+++ b/package.json
@@ -144,10 +144,10 @@
     "@capacitor/splash-screen": "8.0.2",
     "@capacitor/status-bar": "8.0.2",
     "@capawesome/capacitor-live-update": "8.3.0",
-    "@tanstack/react-router": "1.170.18",
-    "@tanstack/react-start": "1.168.32",
+    "@tanstack/react-router": "1.170.19",
+    "@tanstack/react-start": "1.168.36",
     "@tanstack/react-virtual": "3.14.6",
-    "@tanstack/router-core": "1.171.15",
+    "@tanstack/router-core": "1.171.16",
     "@tanstack/virtual-file-routes": "1.162.0",
     "@vitejs/plugin-react": "5.2.0",
     "commander": "15.0.0",
diff --git a/playground/e2e/capabilities-smoke.spec.ts b/playground/e2e/capabilities-smoke.spec.ts
index eace267b..af74f9c7 100644
--- a/playground/e2e/capabilities-smoke.spec.ts
+++ b/playground/e2e/capabilities-smoke.spec.ts
@@ -28,15 +28,7 @@ import { awaitClientHandover } from "./support/hydrated"
 /**
  * Console errors this spec does NOT fail on. Each entry is a filed, understood
  * error with a reason; there is no wildcard, and a new error is a failure until
- * someone writes its line here. Empty on purpose: the one known handled error in
- * the app — TanStack Router's preload path throwing `_nonReactive` on a
- * react-router/router-core version skew (see link.spec.ts) — fires from a link
- * being hovered or tapped, which nothing here does: a full run on both engines
- * and six repeats of this spec never saw it on these routes. It is not excused
- * ahead of time; if it ever shows up here the failure names it, and the line is
- * one entry — with the follow-on the debug telemetry adds when it forwards that
- * console.error to a log sink that is not running, which is why an entry that
- * matched only the TypeError would not even make the test pass.
+ * someone writes its line here. Empty on purpose.
  */
 const KNOWN_CONSOLE_ERRORS: { pattern: RegExp; reason: string }[] = []
 
diff --git a/playground/e2e/link.spec.ts b/playground/e2e/link.spec.ts
index d4a322bf..8b55afd8 100644
--- a/playground/e2e/link.spec.ts
+++ b/playground/e2e/link.spec.ts
@@ -17,9 +17,7 @@ import { awaitClientHandover } from "./support/hydrated"
  * pop-vs-push. Those fire through the shared gesture engine, which — exactly like
  * Checkbox/Switch — does not respond to Playwright's synthetic mouse/keyboard/
  * dispatched input; only a real finger or the OS drives it, so they are walked on
- * the simulator. (Separately: TanStack Router's PRELOAD path logs `_nonReactive`
- * here from a react-router/router-core version skew. It is caught and non-fatal,
- * orthogonal to these two components, and flagged for its own cleanup.)
+ * the simulator.
  */
 
 test.describe("Link & ExternalLink", () => {
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 487f7d58..482e3e31 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -83,17 +83,17 @@ importers:
         specifier: 8.3.0
         version: 8.3.0(patch_hash=bde38c758771ca4a578a76b47f58ad30ebfec7c01dd91fd24390b86efab706fc)(@capacitor/core@8.4.3)
       '@tanstack/react-router':
-        specifier: 1.170.18
-        version: 1.170.18(react-dom@19.2.3(react@19.2.3))(react@19.2.3)
+        specifier: 1.170.19
+        version: 1.170.19(react-dom@19.2.3(react@19.2.3))(react@19.2.3)
       '@tanstack/react-start':
-        specifier: 1.168.32
-        version: 1.168.32(crossws@0.4.10(srvx@0.11.22))(esbuild@0.28.0)(react-dom@19.2.3(react@19.2.3))(react@19.2.3)(rolldown@1.2.0)(rollup@4.62.2)(vite@8.0.11(@types/node@26.1.1)(esbuild@0.28.0)(jiti@2.7.0)(terser@5.49.0))
+        specifier: 1.168.36
+        version: 1.168.36(crossws@0.4.10(srvx@0.11.22))(esbuild@0.28.0)(react-dom@19.2.3(react@19.2.3))(react@19.2.3)(rolldown@1.2.0)(rollup@4.62.2)(vite@8.0.11(@types/node@26.1.1)(esbuild@0.28.0)(jiti@2.7.0)(terser@5.49.0))
       '@tanstack/react-virtual':
         specifier: 3.14.6
         version: 3.14.6(react-dom@19.2.3(react@19.2.3))(react@19.2.3)
       '@tanstack/router-core':
-        specifier: 1.171.15
-        version: 1.171.15
+        specifier: 1.171.16
+        version: 1.171.16
       '@tanstack/virtual-file-routes':
         specifier: 1.162.0
         version: 1.162.0
@@ -1847,26 +1847,26 @@ packages:
     resolution: {integrity: sha512-79pf/RkhteYZTRgcR4F9kbk84P2N8rugQJswxfIqovlbRiT3yI7eBE+5QorIrZaOKktsgzRlXh1l/du/xpl4iA==}
     engines: {node: '>=20.19'}
 
-  '@tanstack/react-router@1.170.18':
-    resolution: {integrity: sha512-wpbGYZEp/fmz1q4bn7BD8VZ+/VZ7GBqSJv5V969pU+chP8y7dquWDmKTFMohvUegb9lg12m1uPVvD6kB2wORvQ==}
+  '@tanstack/react-router@1.170.19':
+    resolution: {integrity: sha512-cK7VUsc9+8gYZMqwJjCAhrmL9wPhkwxEcZ7cxlHdBjjmqHbZyNxXAml/KfLmSuxRDQGVk2iofpoHclDTSrkmmg==}
     engines: {node: '>=20.19'}
     peerDependencies:
       react: '>=18.0.0 || >=19.0.0'
       react-dom: '>=18.0.0 || >=19.0.0'
 
-  '@tanstack/react-start-client@1.168.16':
-    resolution: {integrity: sha512-1OfHgy0wpHwe2tlB3FxMeA+IMX6Il/QAMf+8UdXuimReIc2Lz3BkMLBL38k4GIxBguX9sI8EMLO5jlTZ4e1olw==}
+  '@tanstack/react-start-client@1.168.17':
+    resolution: {integrity: sha512-FBlebCkUpxmObLzgHQJaCDp3abT6lnoidsHR/5B7hl4thqrWCjeytbuvc3m3t/i60I29GDs3PoRLbZJJMFOhcA==}
     engines: {node: '>=22.12.0'}
     peerDependencies:
       react: '>=18.0.0 || >=19.0.0'
       react-dom: '>=18.0.0 || >=19.0.0'
 
-  '@tanstack/react-start-rsc@0.1.31':
-    resolution: {integrity: sha512-WxjkXYflq550vTNJpdPyMaPC+Vyh88L5wOL+SiDTjPMGne9ad7FZmoJxqfCFEv1e7HVKMH/mMoE8619TsTNVzQ==}
+  '@tanstack/react-start-rsc@0.1.35':
+    resolution: {integrity: sha512-G4/hNp529X4JvztM7jimLdKzNtqk4jBAYRICwv/vVarkkssQrjk5fHaLP7Lor8PdS2DuLs52JneQnRMxZ1lalQ==}
     engines: {node: '>=22.12.0'}
     peerDependencies:
       '@rspack/core': '>=2.0.0-0'
-      '@vitejs/plugin-rsc': '>=0.5.20'
+      '@vitejs/plugin-rsc': '>=0.5.30'
       react: '>=18.0.0 || >=19.0.0'
       react-dom: '>=18.0.0 || >=19.0.0'
       react-server-dom-rspack: '>=0.0.2'
@@ -1878,15 +1878,15 @@ packages:
       react-server-dom-rspack:
         optional: true
 
-  '@tanstack/react-start-server@1.167.22':
-    resolution: {integrity: sha512-eH2PeHuLfL3R5YzE9+y2FfcE4Ld1LNV2ZfrCNVPJMMJFt+9nXDaRHg9BsEmc+JkTAGzz3FKLyQEoWwpbG6Ehqg==}
+  '@tanstack/react-start-server@1.167.24':
+    resolution: {integrity: sha512-2sJ7D+9EslcpCtjeQ9pNA8Xd6gndmzqcrW0xKObylMBTHJQHQOwipYEjO7HRS8Bk3I7tCAKH7wMTbfPsl7LF3Q==}
     engines: {node: '>=22.12.0'}
     peerDependencies:
       react: '>=18.0.0 || >=19.0.0'
       react-dom: '>=18.0.0 || >=19.0.0'
 
-  '@tanstack/react-start@1.168.32':
-    resolution: {integrity: sha512-y1WXHo+jPfHxiuuN1m+br06IcriiBQnEWryBdbKdEOS5vw2PmnOj+Cgf1/YcGOqtSougScWFeE2rL1FXWvsLLg==}
+  '@tanstack/react-start@1.168.36':
+    resolution: {integrity: sha512-Mg1JojcfZp9gYxoZ7bwPnzeSfrMKIywlTBJw7HzeM5YR45zRBlHMPfkj5zkKWigID/kth0psD6LfG7aqYnBGVg==}
     engines: {node: '>=22.12.0'}
     peerDependencies:
       '@rsbuild/core': ^2.0.0
@@ -1914,20 +1914,20 @@ packages:
       react: ^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0
       react-dom: ^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0
 
-  '@tanstack/router-core@1.171.15':
-    resolution: {integrity: sha512-IILCDcLaItMZQ2jEmCABHY1Nhjjn5XUvwpQp3e4Nmu+vfg0BgYFuu/QASz2SwE2ZNbVMrvt8X/wxa+Gg5aErxA==}
+  '@tanstack/router-core@1.171.16':
+    resolution: {integrity: sha512-/qwawP5a45puA9DQtG8syrChWCV7uGMYs1p5rwgrICgiS/0pHo7zNOFyfVI02J1azWhCfFc6w6+SuiivPESYAA==}
     engines: {node: '>=20.19'}
 
-  '@tanstack/router-generator@1.167.21':
-    resolution: {integrity: sha512-m3oXZyienj8owialdyoZ0txHQrnEx/Ra+D9kWtar5fC2cWZr5Pvxl86VY2mX5RRLC5QLKLeRGT1x4HV95wHVDQ==}
+  '@tanstack/router-generator@1.167.22':
+    resolution: {integrity: sha512-tiKrH6xuCdTfmm4UuHSpLsZ5q2pwmhNbGpExp5u/CCRObjQM5nxz8Dce/X3w86ST6VSZFQMBNjLcsUMnVlJw/Q==}
     engines: {node: '>=20.19'}
 
-  '@tanstack/router-plugin@1.168.23':
-    resolution: {integrity: sha512-0+PIcvnaAimFwjoEIeV3h7LKjzC8zNnp7pH2UamdKwQ9QlY99WU9V0Xl0zbM0i9hrUa/mKgWPDAzELmPUu5fMA==}
+  '@tanstack/router-plugin@1.168.24':
+    resolution: {integrity: sha512-FfPW45gfZHDC25AHo4MJB3ZljXEKFJenEgIDTELwnI6FtS90vXTQXjOjdTVNs/7B4R8+wLf7nWVrPSvBMp7zWw==}
     engines: {node: '>=20.19'}
     peerDependencies:
       '@rsbuild/core': '>=1.0.2 || ^2.0.0'
-      '@tanstack/react-router': ^1.170.18
+      '@tanstack/react-router': ^1.170.19
       vite: '>=5.0.0 || >=6.0.0 || >=7.0.0 || >=8.0.0'
       vite-plugin-solid: ^2.11.10 || ^3.0.0-0
       webpack: '>=5.92.0'
@@ -1947,16 +1947,16 @@ packages:
     resolution: {integrity: sha512-hTWqJtqIFFdvuCl8WXNyrodp2L9zo2G37xKRrcVmVRWpAB2h+U1LuRAfS4tsFTiWOIoE/B+WDVFB8JpoEdw6jQ==}
     engines: {node: '>=20.19'}
 
-  '@tanstack/start-client-core@1.170.14':
-    resolution: {integrity: sha512-yasBgEIFSWysL4EiFIGwp638nCoXXKiTqkc48EP2oty4OyNsZPTC1yfJ82zjq2KGkTAYtIaeMl7otqqRl1n85Q==}
+  '@tanstack/start-client-core@1.170.15':
+    resolution: {integrity: sha512-jzQ19jYFHcFeGADbZul6jNALP3ihTraKDkAnPzDIFyOKf/8B8py5qOi8pAl+0QlCBEXmxGw+5u+IU2bCr3SI5Q==}
     engines: {node: '>=22.12.0'}
 
   '@tanstack/start-fn-stubs@1.162.0':
     resolution: {integrity: sha512-QWfUZ3Yo923tdQn38LyKMU8rcTw69zc+T4dAvgTWV4O56SqFRsGfS0lSWIMhJRwXIx/bvdi7nTUBDdZtTHtpTQ==}
     engines: {node: '>=22.12.0'}
 
-  '@tanstack/start-plugin-core@1.171.24':
-    resolution: {integrity: sha512-l/tm+T0ntXHeIzr9kJDTJ2IDNZC0yFazjkvbEVeZsDOrJ8F+HiZmY+tXYqI5/nDYkwxY0DVQr+kGsTRVb6y2Jw==}
+  '@tanstack/start-plugin-core@1.171.27':
+    resolution: {integrity: sha512-VV9vUJ4qUYotWj6VqaUh1g6wTpijDWijHuMNymQKC3uAJQ/EVWJir+Jp/XhhSFtlmOeZXmCTLgwKdJwUzJtTxg==}
     engines: {node: '>=22.12.0'}
     peerDependencies:
       '@rsbuild/core': ^2.0.0
@@ -1967,12 +1967,12 @@ packages:
       vite:
         optional: true
 
-  '@tanstack/start-server-core@1.169.17':
-    resolution: {integrity: sha512-u0N+PHJhMHnzfnlXYI9F+A/qweDe3E2X0mfkORPGIEkNQgvS548RA9fjwvixR2en5b848CfpEqUzwFhm/tQ40Q==}
+  '@tanstack/start-server-core@1.169.19':
+    resolution: {integrity: sha512-q+RE1YI9SGckFOINW2RE/z1KmuXKrUnUWf/xQUWVYN0xXqZNxQvWrNEhoV2Fr+1TT6Fp0hy8oP1yTrNoteNg6Q==}
     engines: {node: '>=22.12.0'}
 
-  '@tanstack/start-storage-context@1.167.17':
-    resolution: {integrity: sha512-ntkDyGx0PE0opIlWNAMpkMb8qkjR4uyCUOfC0CiT0STM25+EcwPuwYNfDXXeVObMrTAPgsQ4yOj3xdY0Xr4ptw==}
+  '@tanstack/start-storage-context@1.167.18':
+    resolution: {integrity: sha512-Hpr/yvwYKIcXlfUt7MZ8mBHt9f2VNEXYwZXq9bIJVUvYhKcF/zzdMnc8UStTyRAynkgK/rZ36UvK9RrX4dcjeg==}
     engines: {node: '>=22.12.0'}
 
   '@tanstack/store@0.9.3':
@@ -5992,33 +5992,32 @@ snapshots:
 
   '@tanstack/history@1.162.0': {}
 
-  '@tanstack/react-router@1.170.18(react-dom@19.2.3(react@19.2.3))(react@19.2.3)':
+  '@tanstack/react-router@1.170.19(react-dom@19.2.3(react@19.2.3))(react@19.2.3)':
     dependencies:
       '@tanstack/history': 1.162.0
       '@tanstack/react-store': 0.9.3(react-dom@19.2.3(react@19.2.3))(react@19.2.3)
-      '@tanstack/router-core': 1.171.15
+      '@tanstack/router-core': 1.171.16
       isbot: 5.2.0
       react: 19.2.3
       react-dom: 19.2.3(react@19.2.3)
 
-  '@tanstack/react-start-client@1.168.16(react-dom@19.2.3(react@19.2.3))(react@19.2.3)':
+  '@tanstack/react-start-client@1.168.17(react-dom@19.2.3(react@19.2.3))(react@19.2.3)':
     dependencies:
-      '@tanstack/react-router': 1.170.18(react-dom@19.2.3(react@19.2.3))(react@19.2.3)
-      '@tanstack/router-core': 1.171.15
-      '@tanstack/start-client-core': 1.170.14
+      '@tanstack/react-router': 1.170.19(react-dom@19.2.3(react@19.2.3))(react@19.2.3)
+      '@tanstack/router-core': 1.171.16
+      '@tanstack/start-client-core': 1.170.15
       react: 19.2.3
       react-dom: 19.2.3(react@19.2.3)
 
-  '@tanstack/react-start-rsc@0.1.31(crossws@0.4.10(srvx@0.11.22))(esbuild@0.28.0)(react-dom@19.2.3(react@19.2.3))(react@19.2.3)(rolldown@1.2.0)(rollup@4.62.2)(vite@8.0.11(@types/node@26.1.1)(esbuild@0.28.0)(jiti@2.7.0)(terser@5.49.0))':
+  '@tanstack/react-start-rsc@0.1.35(crossws@0.4.10(srvx@0.11.22))(esbuild@0.28.0)(react-dom@19.2.3(react@19.2.3))(react@19.2.3)(rolldown@1.2.0)(rollup@4.62.2)(vite@8.0.11(@types/node@26.1.1)(esbuild@0.28.0)(jiti@2.7.0)(terser@5.49.0))':
     dependencies:
-      '@tanstack/react-router': 1.170.18(react-dom@19.2.3(react@19.2.3))(react@19.2.3)
-      '@tanstack/router-core': 1.171.15
+      '@tanstack/react-router': 1.170.19(react-dom@19.2.3(react@19.2.3))(react@19.2.3)
+      '@tanstack/router-core': 1.171.16
       '@tanstack/router-utils': 1.162.2
-      '@tanstack/start-client-core': 1.170.14
+      '@tanstack/start-client-core': 1.170.15
       '@tanstack/start-fn-stubs': 1.162.0
-      '@tanstack/start-plugin-core': 1.171.24(@tanstack/react-router@1.170.18(react-dom@19.2.3(react@19.2.3))(react@19.2.3))(crossws@0.4.10(srvx@0.11.22))(esbuild@0.28.0)(rolldown@1.2.0)(rollup@4.62.2)(vite@8.0.11(@types/node@26.1.1)(esbuild@0.28.0)(jiti@2.7.0)(terser@5.49.0))
-      '@tanstack/start-server-core': 1.169.17(crossws@0.4.10(srvx@0.11.22))
-      '@tanstack/start-storage-context': 1.167.17
+      '@tanstack/start-plugin-core': 1.171.27(@tanstack/react-router@1.170.19(react-dom@19.2.3(react@19.2.3))(react@19.2.3))(crossws@0.4.10(srvx@0.11.22))(esbuild@0.28.0)(rolldown@1.2.0)(rollup@4.62.2)(vite@8.0.11(@types/node@26.1.1)(esbuild@0.28.0)(jiti@2.7.0)(terser@5.49.0))
+      '@tanstack/start-storage-context': 1.167.18
       pathe: 2.0.3
       react: 19.2.3
       react-dom: 19.2.3(react@19.2.3)
@@ -6036,26 +6035,26 @@ snapshots:
       - vite-plugin-solid
       - webpack
 
-  '@tanstack/react-start-server@1.167.22(crossws@0.4.10(srvx@0.11.22))(react-dom@19.2.3(react@19.2.3))(react@19.2.3)':
+  '@tanstack/react-start-server@1.167.24(crossws@0.4.10(srvx@0.11.22))(react-dom@19.2.3(react@19.2.3))(react@19.2.3)':
     dependencies:
-      '@tanstack/react-router': 1.170.18(react-dom@19.2.3(react@19.2.3))(react@19.2.3)
-      '@tanstack/router-core': 1.171.15
-      '@tanstack/start-server-core': 1.169.17(crossws@0.4.10(srvx@0.11.22))
+      '@tanstack/react-router': 1.170.19(react-dom@19.2.3(react@19.2.3))(react@19.2.3)
+      '@tanstack/router-core': 1.171.16
+      '@tanstack/start-server-core': 1.169.19(crossws@0.4.10(srvx@0.11.22))
       react: 19.2.3
       react-dom: 19.2.3(react@19.2.3)
     transitivePeerDependencies:
       - crossws
 
-  '@tanstack/react-start@1.168.32(crossws@0.4.10(srvx@0.11.22))(esbuild@0.28.0)(react-dom@19.2.3(react@19.2.3))(react@19.2.3)(rolldown@1.2.0)(rollup@4.62.2)(vite@8.0.11(@types/node@26.1.1)(esbuild@0.28.0)(jiti@2.7.0)(terser@5.49.0))':
+  '@tanstack/react-start@1.168.36(crossws@0.4.10(srvx@0.11.22))(esbuild@0.28.0)(react-dom@19.2.3(react@19.2.3))(react@19.2.3)(rolldown@1.2.0)(rollup@4.62.2)(vite@8.0.11(@types/node@26.1.1)(esbuild@0.28.0)(jiti@2.7.0)(terser@5.49.0))':
     dependencies:
-      '@tanstack/react-router': 1.170.18(react-dom@19.2.3(react@19.2.3))(react@19.2.3)
-      '@tanstack/react-start-client': 1.168.16(react-dom@19.2.3(react@19.2.3))(react@19.2.3)
-      '@tanstack/react-start-rsc': 0.1.31(crossws@0.4.10(srvx@0.11.22))(esbuild@0.28.0)(react-dom@19.2.3(react@19.2.3))(react@19.2.3)(rolldown@1.2.0)(rollup@4.62.2)(vite@8.0.11(@types/node@26.1.1)(esbuild@0.28.0)(jiti@2.7.0)(terser@5.49.0))
-      '@tanstack/react-start-server': 1.167.22(crossws@0.4.10(srvx@0.11.22))(react-dom@19.2.3(react@19.2.3))(react@19.2.3)
+      '@tanstack/react-router': 1.170.19(react-dom@19.2.3(react@19.2.3))(react@19.2.3)
+      '@tanstack/react-start-client': 1.168.17(react-dom@19.2.3(react@19.2.3))(react@19.2.3)
+      '@tanstack/react-start-rsc': 0.1.35(crossws@0.4.10(srvx@0.11.22))(esbuild@0.28.0)(react-dom@19.2.3(react@19.2.3))(react@19.2.3)(rolldown@1.2.0)(rollup@4.62.2)(vite@8.0.11(@types/node@26.1.1)(esbuild@0.28.0)(jiti@2.7.0)(terser@5.49.0))
+      '@tanstack/react-start-server': 1.167.24(crossws@0.4.10(srvx@0.11.22))(react-dom@19.2.3(react@19.2.3))(react@19.2.3)
       '@tanstack/router-utils': 1.162.2
-      '@tanstack/start-client-core': 1.170.14
-      '@tanstack/start-plugin-core': 1.171.24(@tanstack/react-router@1.170.18(react-dom@19.2.3(react@19.2.3))(react@19.2.3))(crossws@0.4.10(srvx@0.11.22))(esbuild@0.28.0)(rolldown@1.2.0)(rollup@4.62.2)(vite@8.0.11(@types/node@26.1.1)(esbuild@0.28.0)(jiti@2.7.0)(terser@5.49.0))
-      '@tanstack/start-server-core': 1.169.17(crossws@0.4.10(srvx@0.11.22))
+      '@tanstack/start-client-core': 1.170.15
+      '@tanstack/start-plugin-core': 1.171.27(@tanstack/react-router@1.170.19(react-dom@19.2.3(react@19.2.3))(react@19.2.3))(crossws@0.4.10(srvx@0.11.22))(esbuild@0.28.0)(rolldown@1.2.0)(rollup@4.62.2)(vite@8.0.11(@types/node@26.1.1)(esbuild@0.28.0)(jiti@2.7.0)(terser@5.49.0))
+      '@tanstack/start-server-core': 1.169.19(crossws@0.4.10(srvx@0.11.22))
       pathe: 2.0.3
       react: 19.2.3
       react-dom: 19.2.3(react@19.2.3)
@@ -6088,17 +6087,17 @@ snapshots:
       react: 19.2.3
       react-dom: 19.2.3(react@19.2.3)
 
-  '@tanstack/router-core@1.171.15':
+  '@tanstack/router-core@1.171.16':
     dependencies:
       '@tanstack/history': 1.162.0
       cookie-es: 3.1.1
       seroval: 1.5.5
       seroval-plugins: 1.5.5(seroval@1.5.5)
 
-  '@tanstack/router-generator@1.167.21':
+  '@tanstack/router-generator@1.167.22':
     dependencies:
       '@babel/types': 7.29.7
-      '@tanstack/router-core': 1.171.15
+      '@tanstack/router-core': 1.171.16
       '@tanstack/router-utils': 1.162.2
       '@tanstack/virtual-file-routes': 1.162.0
       jiti: 2.7.0
@@ -6108,19 +6107,19 @@ snapshots:
     transitivePeerDependencies:
       - supports-color
 
-  '@tanstack/router-plugin@1.168.23(@tanstack/react-router@1.170.18(react-dom@19.2.3(react@19.2.3))(react@19.2.3))(esbuild@0.28.0)(rolldown@1.2.0)(rollup@4.62.2)(vite@8.0.11(@types/node@26.1.1)(esbuild@0.28.0)(jiti@2.7.0)(terser@5.49.0))':
+  '@tanstack/router-plugin@1.168.24(@tanstack/react-router@1.170.19(react-dom@19.2.3(react@19.2.3))(react@19.2.3))(esbuild@0.28.0)(rolldown@1.2.0)(rollup@4.62.2)(vite@8.0.11(@types/node@26.1.1)(esbuild@0.28.0)(jiti@2.7.0)(terser@5.49.0))':
     dependencies:
       '@babel/core': 7.29.7
       '@babel/template': 7.29.7
       '@babel/types': 7.29.7
-      '@tanstack/router-core': 1.171.15
-      '@tanstack/router-generator': 1.167.21
+      '@tanstack/router-core': 1.171.16
+      '@tanstack/router-generator': 1.167.22
       '@tanstack/router-utils': 1.162.2
       chokidar: 5.0.0
       unplugin: 3.3.0(esbuild@0.28.0)(rolldown@1.2.0)(rollup@4.62.2)(vite@8.0.11(@types/node@26.1.1)(esbuild@0.28.0)(jiti@2.7.0)(terser@5.49.0))
       zod: 4.4.3
     optionalDependencies:
-      '@tanstack/react-router': 1.170.18(react-dom@19.2.3(react@19.2.3))(react@19.2.3)
+      '@tanstack/react-router': 1.170.19(react-dom@19.2.3(react@19.2.3))(react@19.2.3)
       vite: 8.0.11(@types/node@26.1.1)(esbuild@0.28.0)(jiti@2.7.0)(terser@5.49.0)
     transitivePeerDependencies:
       - '@farmfe/core'
@@ -6145,25 +6144,25 @@ snapshots:
     transitivePeerDependencies:
       - supports-color
 
-  '@tanstack/start-client-core@1.170.14':
+  '@tanstack/start-client-core@1.170.15':
     dependencies:
-      '@tanstack/router-core': 1.171.15
+      '@tanstack/router-core': 1.171.16
       '@tanstack/start-fn-stubs': 1.162.0
-      '@tanstack/start-storage-context': 1.167.17
+      '@tanstack/start-storage-context': 1.167.18
       seroval: 1.5.5
 
   '@tanstack/start-fn-stubs@1.162.0': {}
 
-  '@tanstack/start-plugin-core@1.171.24(@tanstack/react-router@1.170.18(react-dom@19.2.3(react@19.2.3))(react@19.2.3))(crossws@0.4.10(srvx@0.11.22))(esbuild@0.28.0)(rolldown@1.2.0)(rollup@4.62.2)(vite@8.0.11(@types/node@26.1.1)(esbuild@0.28.0)(jiti@2.7.0)(terser@5.49.0))':
+  '@tanstack/start-plugin-core@1.171.27(@tanstack/react-router@1.170.19(react-dom@19.2.3(react@19.2.3))(react@19.2.3))(crossws@0.4.10(srvx@0.11.22))(esbuild@0.28.0)(rolldown@1.2.0)(rollup@4.62.2)(vite@8.0.11(@types/node@26.1.1)(esbuild@0.28.0)(jiti@2.7.0)(terser@5.49.0))':
     dependencies:
       '@babel/code-frame': 7.27.1
       '@babel/core': 7.29.7
       '@babel/types': 7.29.7
-      '@tanstack/router-core': 1.171.15
-      '@tanstack/router-generator': 1.167.21
-      '@tanstack/router-plugin': 1.168.23(@tanstack/react-router@1.170.18(react-dom@19.2.3(react@19.2.3))(react@19.2.3))(esbuild@0.28.0)(rolldown@1.2.0)(rollup@4.62.2)(vite@8.0.11(@types/node@26.1.1)(esbuild@0.28.0)(jiti@2.7.0)(terser@5.49.0))
+      '@tanstack/router-core': 1.171.16
+      '@tanstack/router-generator': 1.167.22
+      '@tanstack/router-plugin': 1.168.24(@tanstack/react-router@1.170.19(react-dom@19.2.3(react@19.2.3))(react@19.2.3))(esbuild@0.28.0)(rolldown@1.2.0)(rollup@4.62.2)(vite@8.0.11(@types/node@26.1.1)(esbuild@0.28.0)(jiti@2.7.0)(terser@5.49.0))
       '@tanstack/router-utils': 1.162.2
-      '@tanstack/start-server-core': 1.169.17(crossws@0.4.10(srvx@0.11.22))
+      '@tanstack/start-server-core': 1.169.19(crossws@0.4.10(srvx@0.11.22))
       exsolve: 1.1.0
       lightningcss: 1.32.0
       pathe: 2.0.3
@@ -6192,21 +6191,21 @@ snapshots:
       - vite-plugin-solid
       - webpack
 
-  '@tanstack/start-server-core@1.169.17(crossws@0.4.10(srvx@0.11.22))':
+  '@tanstack/start-server-core@1.169.19(crossws@0.4.10(srvx@0.11.22))':
     dependencies:
       '@tanstack/history': 1.162.0
-      '@tanstack/router-core': 1.171.15
-      '@tanstack/start-client-core': 1.170.14
-      '@tanstack/start-storage-context': 1.167.17
+      '@tanstack/router-core': 1.171.16
+      '@tanstack/start-client-core': 1.170.15
+      '@tanstack/start-storage-context': 1.167.18
       fetchdts: 0.1.7
       h3-v2: h3@2.0.1-rc.20(crossws@0.4.10(srvx@0.11.22))
       seroval: 1.5.5
     transitivePeerDependencies:
       - crossws
 
-  '@tanstack/start-storage-context@1.167.17':
+  '@tanstack/start-storage-context@1.167.18':
     dependencies:
-      '@tanstack/router-core': 1.171.15
+      '@tanstack/router-core': 1.171.16
 
   '@tanstack/store@0.9.3': {}
 
diff --git a/src/execution-boundary.test.ts b/src/execution-boundary.test.ts
index 6690ac94..802950e7 100644
--- a/src/execution-boundary.test.ts
+++ b/src/execution-boundary.test.ts
@@ -83,6 +83,7 @@ const CONSUMER_BUILD_ENTRIES = [
   "src/routes/client-entry.tsx",
   "src/routes/router-entry.tsx",
   "src/components/boot-error.tsx",
+  "src/routes/lazy-route-component.ts",
   "src/sw/default-worker.ts",
 ]
 
diff --git a/src/routes/lazy-route-component.test.ts b/src/routes/lazy-route-component.test.ts
new file mode 100644
index 00000000..c3c3d1d3
--- /dev/null
+++ b/src/routes/lazy-route-component.test.ts
@@ -0,0 +1,83 @@
+import { afterEach, describe, expect, it, vi } from "vitest"
+import { lazyRouteComponent } from "#adaptv/routes/lazy-route-component.ts"
+
+/*
+ * A split route whose chunk is gone reloads the page once. React renders the suspended
+ * route more than once before the page goes, and with react-router 1.170.19's
+ * `lazyRouteComponent` the second render threw the import error, so the app's error
+ * screen drew over the reload. The end-to-end proof is `e2e-sw/stale-chunk.spec.ts`.
+ */
+
+const MISSING = new TypeError(
+  "Failed to fetch dynamically imported module: /assets/home-old.js",
+)
+
+afterEach(() => {
+  sessionStorage.clear()
+  vi.restoreAllMocks()
+})
+
+function stubReload() {
+  const reload = vi.fn()
+  vi.spyOn(window, "location", "get").mockReturnValue({
+    ...window.location,
+    reload,
+  })
+  return reload
+}
+
+describe("lazyRouteComponent", () => {
+  it("suspends every render after a missing chunk, until the reload lands", async () => {
+    const reload = stubReload()
+    const Lazy = lazyRouteComponent(() => Promise.reject(MISSING))
+    await Lazy.preload()
+
+    for (let render = 0; render < 3; render++) {
+      let thrown: unknown
+      try {
+        Lazy({})
+      } catch (value) {
+        thrown = value
+      }
+      expect(thrown).toBeInstanceOf(Promise)
+    }
+    expect(reload).toHaveBeenCalled()
+    expect(
+      sessionStorage.getItem(`tanstack_router_reload:${MISSING.message}`),
+    ).toBe("1")
+  })
+
+  it("throws the error when the reload already happened once for that chunk", async () => {
+    const reload = stubReload()
+    sessionStorage.setItem(
+      `tanstack_router_reload:${MISSING.message}`,
+      "1",
+    )
+    const Lazy = lazyRouteComponent(() => Promise.reject(MISSING))
+    await Lazy.preload()
+
+    expect(() => Lazy({})).toThrow(MISSING)
+    expect(reload).not.toHaveBeenCalled()
+  })
+
+  it("throws any other import error without reloading", async () => {
+    const reload = stubReload()
+    const failure = new Error("boom")
+    const Lazy = lazyRouteComponent(() => Promise.reject(failure))
+    await Lazy.preload()
+
+    expect(() => Lazy({})).toThrow(failure)
+    expect(reload).not.toHaveBeenCalled()
+  })
+
+  it("renders the named export once the chunk has loaded", async () => {
+    const Page = () => null
+    const Lazy = lazyRouteComponent(
+      () => Promise.resolve({ Page }),
+      "Page",
+    )
+    await Lazy.preload()
+
+    expect(Lazy({})).toMatchObject({ type: Page })
+  })
+})
diff --git a/src/routes/lazy-route-component.ts b/src/routes/lazy-route-component.ts
new file mode 100644
index 00000000..92e4c96d
--- /dev/null
+++ b/src/routes/lazy-route-component.ts
@@ -0,0 +1,80 @@
+import type { ComponentType } from "react"
+import { createElement, use } from "react"
+
+/**
+ * The `lazyRouteComponent` TanStack's code-splitter writes into every split route of the
+ * app. `tanstack-resolve.ts` serves the app this one in place of the router's own.
+ *
+ * A route whose chunk is gone (the deploy moved on under an open tab) reloads the page
+ * once, guarded by a `tanstack_router_reload:` sessionStorage key so a chunk that is
+ * really missing does not loop. The decision is LATCHED when the import fails: every
+ * render after it suspends until the reload lands.
+ *
+ * react-router 1.170.19 moved the decision into the render: the first render sets the key
+ * and reloads, and the next one, before the page has gone, finds the key set and throws
+ * the import error to the route's error boundary. React renders a suspended route more
+ * than once, so the app's error screen drew over the reload, and `stale-chunk.spec.ts`
+ * failed on both engines. That release is also the first with the fix for
+ * TanStack/router#7759 (a preload reading a match a navigation had just evicted), so
+ * adaptv keeps the router and owns this one function, as 1.170.18 shipped it.
+ */
+export function lazyRouteComponent<
+  TModule extends Record<string, unknown>,
+  TKey extends keyof TModule = "default",
+>(importer: () => Promise<TModule>, exportName?: TKey) {
+  let loadPromise: Promise<void> | undefined
+  let comp: ComponentType<object> | undefined
+  let error: unknown
+  let reload = false
+
+  const load = () => {
+    if (!loadPromise)
+      loadPromise = importer()
+        .then((res) => {
+          loadPromise = undefined
+          comp = res[exportName ?? "default"] as ComponentType<object>
+        })
+        .catch((err: unknown) => {
+          error = err
+          if (
+            isModuleNotFoundError(err) &&
+            typeof window !== "undefined" &&
+            typeof sessionStorage !== "undefined"
+          ) {
+            const storageKey = `tanstack_router_reload:${err.message}`
+            if (!sessionStorage.getItem(storageKey)) {
+              sessionStorage.setItem(storageKey, "1")
+              reload = true
+            }
+          }
+        })
+    return loadPromise
+  }
+
+  const lazyComp = function Lazy(props: object) {
+    if (reload) {
+      window.location.reload()
+      throw new Promise(() => {})
+    }
+    if (error) throw error
+    if (!comp) use(load())
+    return createElement(comp as ComponentType<object>, props)
+  }
+  lazyComp.preload = load
+  return lazyComp
+}
+
+//router-core's `isModuleNotFoundError`, copied: router-core is not adaptv's dependency.
+//The three engines' messages for a dynamic import that failed to fetch.
+function isModuleNotFoundError(error: unknown): error is Error {
+  if (!(error instanceof Error)) return false
+  return (
+    error.message.startsWith(
+      "Failed to fetch dynamically imported module",
+    ) ||
+    error.message.startsWith(
+      "error loading dynamically imported module",
+    ) ||
+    error.message.startsWith("Importing a module script failed")
+  )
+}
diff --git a/src/shell/create-adaptv-router.test.ts b/src/shell/create-adaptv-router.test.ts
new file mode 100644
index 00000000..207dedd0
--- /dev/null
+++ b/src/shell/create-adaptv-router.test.ts
@@ -0,0 +1,52 @@
+import {
+  createLazyRoute,
+  createMemoryHistory,
+  createRootRoute,
+  createRoute,
+} from "@tanstack/react-router"
+import { afterEach, describe, expect, it, vi } from "vitest"
+import { createAdaptvRouter } from "#adaptv/shell/create-adaptv-router"
+
+afterEach(() => {
+  vi.restoreAllMocks()
+})
+
+describe("createAdaptvRouter", () => {
+  //A link preloads its route on intent (hover, touchstart), and the tap that follows
+  //navigates while that preload is still in flight. The navigation's commit clears
+  //the expired cache, which drops the cached match of a route with no loader, so the
+  //preload came back to a match that was gone and threw `match._nonReactive` (the
+  //route engine caught it and console.error'd it). Seen ~1 in 8 on webkit in
+  //playground/e2e/icon.spec.ts, the StrictMode client-navigation test.
+  it("a navigation that commits during a preload leaves the preload to finish quietly", async () => {
+    let release = () => {}
+    const chunk = new Promise<void>((resolve) => {
+      release = resolve
+    })
+    const rootRoute = createRootRoute()
+    const routeTree = rootRoute.addChildren([
+      createRoute({ getParentRoute: () => rootRoute, path: "/" }),
+      //code-split like every app route, and no loader: its cached match is the one
+      //a commit evicts while the chunk is still loading
+      createRoute({
+        getParentRoute: () => rootRoute,
+        path: "/preloaded",
+      }).lazy(() => chunk.then(() => createLazyRoute("/preloaded")({}))),
+      createRoute({ getParentRoute: () => rootRoute, path: "/elsewhere" }),
+    ])
+    const router = createAdaptvRouter({
+      routeTree,
+      options: { history: createMemoryHistory({ initialEntries: ["/"] }) },
+    })
+    await router.load()
+    const error = vi.spyOn(console, "error").mockImplementation(() => {})
+
+    const preload = router.preloadRoute({ to: "/preloaded" })
+    await router.navigate({ to: "/elsewhere" })
+    release()
+    await preload
+
+    expect(router.state.location.pathname).toBe("/elsewhere")
+    expect(error).not.toHaveBeenCalled()
+  })
+})
diff --git a/src/shell/shell-layout.tsx b/src/shell/shell-layout.tsx
index 199cd420..425f7bc9 100644
--- a/src/shell/shell-layout.tsx
+++ b/src/shell/shell-layout.tsx
@@ -173,12 +173,12 @@ type RoutingShellProps = {
  */
 function useNotFoundBoundary() {
   return useRouterState({
-    //`globalNotFound` marks the boundary that renders the not-found; `notFound`
+    //`_notFound` marks the boundary that renders the not-found; `notFound`
     //status is the nested (`notFoundMode: "fuzzy"`) form of the same thing. Both
     //cut the tree off below that point.
     select: (state) =>
       state.matches.some(
-        (match) => match.globalNotFound || match.status === "notFound",
+        (match) => match._notFound || match.status === "notFound",
       ),
   })
 }
@@ -287,7 +287,7 @@ export function RoutingShell({
   //
   //adaptv mounts the splash, so adaptv retires it — there is no boot left to cover
   //when the app tree is never going to mount. During render, not in an effect, so
-  //the SSR pass and hydration agree (`globalNotFound` is dehydrated) and a native
+  //the SSR pass and hydration agree (`_notFound` is dehydrated) and a native
   //cold start never paints the splash even for a frame. Latched, because retiring
   //is one-way: re-mounting on the navigation *out* of a 404 would hand a fresh
   //splash an already-set ready gate and replay it over a booted app.
diff --git a/src/vite/engine-hooks.ts b/src/vite/engine-hooks.ts
index de4e3303..ee3cb8ba 100644
--- a/src/vite/engine-hooks.ts
+++ b/src/vite/engine-hooks.ts
@@ -53,7 +53,7 @@ export const ENGINE_EDITS: readonly EngineEdit[] = [
     //the import the generator writes into route files names the framework barrel
     //(ADAPTV_ROUTER_PKG, set by adaptv's vite plugin). → src/vite/router-autoimport.ts
     pkg: "@tanstack/router-generator",
-    version: "1.167.21",
+    version: "1.167.22",
     file: "dist/esm/transform/transform.js",
     replace: [
       [
@@ -67,7 +67,7 @@ export const ENGINE_EDITS: readonly EngineEdit[] = [
     //`#tanstack-router-entry` stay: they are subpath imports declared in
     //start-server-core's own `imports` map, and never reach the HTML.
     pkg: "@tanstack/start-plugin-core",
-    version: "1.171.24",
+    version: "1.171.27",
     file: "dist/esm/constants.js",
     replace: [
       [
diff --git a/src/vite/package-files.ts b/src/vite/package-files.ts
index fd5c1f9f..3d1c468c 100644
--- a/src/vite/package-files.ts
+++ b/src/vite/package-files.ts
@@ -22,9 +22,10 @@ const PACKAGE_NAME = "@arrzdev/adaptv"
 /**
  * The modules adaptv hands to the consumer's own build, which compiles them as part of the
  * app: Start's client and router entries, the root route the route DSL points at, the
- * service worker esbuild bundles, and the boot screen prerendered into the shell. In a
- * checkout they are source; in a published package each is its own tsdown entry, so the
- * consumer gets the same file the framework's own entries share chunks with.
+ * service worker esbuild bundles, the boot screen prerendered into the shell, and the
+ * `lazyRouteComponent` the app's split routes import. In a checkout they are source; in a
+ * published package each is its own tsdown entry, so the consumer gets the same file the
+ * framework's own entries share chunks with.
  * → tsdown.config.ts
  */
 export const SHIPPED_FILES = {
@@ -48,6 +49,10 @@ export const SHIPPED_FILES = {
     src: "src/components/boot-error.tsx",
     dist: "dist/boot-error.mjs",
   },
+  "lazy-route-component": {
+    src: "src/routes/lazy-route-component.ts",
+    dist: "dist/lazy-route-component.mjs",
+  },
 } as const
 
 export type ShippedFile = keyof typeof SHIPPED_FILES
diff --git a/src/vite/tanstack-resolve.test.ts b/src/vite/tanstack-resolve.test.ts
index 624cd4a3..cd20e36c 100644
--- a/src/vite/tanstack-resolve.test.ts
+++ b/src/vite/tanstack-resolve.test.ts
@@ -13,6 +13,7 @@ import { adaptvTanstackResolvePlugin } from "#adaptv/vite/tanstack-resolve.ts"
 
 const APP = path.resolve("/work/my-app")
 const ADAPTV = path.resolve("/pkgs/adaptv")
+const LAZY = path.join(ADAPTV, "dist/lazy-route-component.mjs")
 
 function resolveFrom(source: string, importer: string | undefined) {
   const plugin = adaptvTanstackResolvePlugin(APP, ADAPTV)
@@ -28,14 +29,48 @@ function resolveFrom(source: string, importer: string | undefined) {
 }
 
 describe("adaptvTanstackResolvePlugin", () => {
-  it("resolves a TanStack import in an app route module from adaptv's package", () => {
+  it("resolves a TanStack import in an app module from adaptv's package", () => {
     const { resolve } = resolveFrom(
+      "@tanstack/react-start",
+      path.join(APP, "src/app.tsx"),
+    )
+    expect(resolve).toHaveBeenCalledWith(
+      "@tanstack/react-start",
+      path.join(ADAPTV, "package.json"),
+      { ssr: false, skipSelf: true },
+    )
+  })
+
+  //react-router 1.170.19 checks the stale-chunk reload key at render time, so the
+  //second render of a route whose chunk was gone threw to the error screen while the
+  //reload was in flight. The end-to-end proof is `e2e-sw/stale-chunk.spec.ts`.
+  it("gives an app route module the router with adaptv's lazyRouteComponent", async () => {
+    const { result } = resolveFrom(
       "@tanstack/react-router",
       path.join(
         APP,
         "src/routing/pages/home.page.tsx?tsr-split=component",
       ),
     )
+    const id = await result
+    expect(id).toBe("\0virtual:adaptv/react-router")
+
+    const plugin = adaptvTanstackResolvePlugin(APP, ADAPTV, LAZY)
+    const load = plugin.load as (id: string) => string | null
+    expect(load(id as string)).toBe(
+      [
+        'export * from "@tanstack/react-router"',
+        `export { lazyRouteComponent } from ${JSON.stringify(LAZY)}`,
+        "",
+      ].join("\n"),
+    )
+  })
+
+  it("resolves that module's own router import from adaptv's package", () => {
+    const { resolve } = resolveFrom(
+      "@tanstack/react-router",
+      "\0virtual:adaptv/react-router",
+    )
     expect(resolve).toHaveBeenCalledWith(
       "@tanstack/react-router",
       path.join(ADAPTV, "package.json"),
diff --git a/src/vite/tanstack-resolve.ts b/src/vite/tanstack-resolve.ts
index 13ebf128..e1bd54f6 100644
--- a/src/vite/tanstack-resolve.ts
+++ b/src/vite/tanstack-resolve.ts
@@ -1,6 +1,9 @@
 import path from "node:path"
 import type { Plugin } from "vite"
-import { adaptvPackageRoot } from "#adaptv/vite/package-files.ts"
+import {
+  adaptvPackageRoot,
+  adaptvShippedFile,
+} from "#adaptv/vite/package-files.ts"
 
 //The entries Start adds to `resolve.dedupe` (`@tanstack/react-start`'s `plugin/vite.js`).
 //Only these go: an app's own `@tanstack/*` entry, such as `@tanstack/react-query`, stays.
@@ -17,6 +20,10 @@ const ROUTER_CORE_PREBUNDLE = [
   "@tanstack/router-core/scroll-restoration-script",
 ].map((entry) => `@arrzdev/adaptv > @tanstack/react-router > ${entry}`)
 
+const ROUTER = "@tanstack/react-router"
+//The router the app's modules get: TanStack's, with adaptv's `lazyRouteComponent`.
+const APP_ROUTER_ID = "\0virtual:adaptv/react-router"
+
 /**
  * Resolve the `@tanstack/*` imports TanStack writes into the APP's modules from adaptv's
  * own dependencies.
@@ -66,6 +73,11 @@ const ROUTER_CORE_PREBUNDLE = [
  * Node answered every page with a 500. A build bundles it either way. Every app needs
  * the entry, so the plugin adds it and an app's `vite.config.ts` carries no `ssr` key.
  *
+ * The app's `@tanstack/react-router` is not the router itself but a module that re-exports
+ * it with adaptv's own `lazyRouteComponent` in place of TanStack's. The split routes are
+ * the only importers of that function, and react-router 1.170.19 broke the stale-chunk
+ * reload it does. → src/routes/lazy-route-component.ts
+ *
  * In dev the browser's copy of the router is pre-bundled up front. Start puts every
  * package that peers on it, the router and adaptv included, in the client's
  * `optimizeDeps.exclude`, so the router is served as source, and Vite met its
@@ -78,6 +90,7 @@ const ROUTER_CORE_PREBUNDLE = [
 export function adaptvTanstackResolvePlugin(
   appRoot: string,
   packageRoot = adaptvPackageRoot(),
+  lazyRouteFile?: string,
 ): Plugin {
   const from = path.join(packageRoot, "package.json")
   const appDir = `${path.resolve(appRoot)}${path.sep}`
@@ -108,13 +121,26 @@ export function adaptvTanstackResolvePlugin(
     },
     resolveId(source, importer, options) {
       if (!source.startsWith("@tanstack/") || !importer) return null
+      if (importer === APP_ROUTER_ID)
+        return this.resolve(source, from, { ...options, skipSelf: true })
       const file = importer.split("?")[0] ?? importer
       if (
         !file.startsWith(appDir) ||
         file.includes(`${path.sep}node_modules${path.sep}`)
       )
         return null
+      if (source === ROUTER) return APP_ROUTER_ID
       return this.resolve(source, from, { ...options, skipSelf: true })
     },
+    load(id) {
+      if (id !== APP_ROUTER_ID) return null
+      const lazy =
+        lazyRouteFile ?? adaptvShippedFile("lazy-route-component")
+      return [
+        `export * from ${JSON.stringify(ROUTER)}`,
+        `export { lazyRouteComponent } from ${JSON.stringify(lazy)}`,
+        "",
+      ].join("\n")
+    },
   }
 }
diff --git a/tsdown.config.ts b/tsdown.config.ts
index 60a742ff..a5f018ec 100644
--- a/tsdown.config.ts
+++ b/tsdown.config.ts
@@ -57,6 +57,7 @@ const browserEntry = {
   "client-entry": "src/routes/client-entry.tsx",
   "router-entry": "src/routes/router-entry.tsx",
   "boot-error": "src/components/boot-error.tsx",
+  "lazy-route-component": "src/routes/lazy-route-component.ts",
 }
 
 /**