diff --git a/src/app/components/updates-dialog/UpdatesDialog.css.ts b/src/app/components/updates-dialog/UpdatesDialog.css.ts
index af1f358..c313196 100644
--- a/src/app/components/updates-dialog/UpdatesDialog.css.ts
+++ b/src/app/components/updates-dialog/UpdatesDialog.css.ts
@@ -7,6 +7,7 @@ export const PortalLayer = style({
   position: 'fixed',
   inset: 0,
   zIndex: config.zIndex.Max,
+  pointerEvents: 'auto',
 });
 
 /** Dialog + overlay padding must never exceed the viewport height. */
diff --git a/src/app/components/updates-dialog/UpdatesDialog.tsx b/src/app/components/updates-dialog/UpdatesDialog.tsx
index 873363c..feecb10 100644
--- a/src/app/components/updates-dialog/UpdatesDialog.tsx
+++ b/src/app/components/updates-dialog/UpdatesDialog.tsx
@@ -4,7 +4,6 @@ import FocusTrap from 'focus-trap-react';
 import {
   Box,
   Button,
-  config,
   Dialog,
   IconButton,
   Overlay,
@@ -48,6 +47,9 @@ export function UpdatesDialog({
     setShowOlderList(false);
   };
 
+  const portalTarget =
+    document.getElementById('portalContainer') ?? document.body;
+
   return createPortal(
     <div className={css.PortalLayer}>
       <Overlay open backdrop={<OverlayBackdrop />}>
@@ -55,8 +57,7 @@ export function UpdatesDialog({
           <FocusTrap
             focusTrapOptions={{
               initialFocus: false,
-              onDeactivate: onClose,
-              clickOutsideDeactivates: true,
+              clickOutsideDeactivates: false,
               escapeDeactivates: stopPropagation,
             }}
           >
@@ -181,6 +182,6 @@ export function UpdatesDialog({
       </OverlayCenter>
     </Overlay>
     </div>,
-    document.body
+    portalTarget
   );
 }
diff --git a/src/app/components/updates-dialog/UpdatesDialogHost.tsx b/src/app/components/updates-dialog/UpdatesDialogHost.tsx
index 14a9df9..8db2c91 100644
--- a/src/app/components/updates-dialog/UpdatesDialogHost.tsx
+++ b/src/app/components/updates-dialog/UpdatesDialogHost.tsx
@@ -26,7 +26,10 @@ type UpdaterInfo = {
 export function useOpenReleaseNotesDialog(): () => void {
   const setDialogState = useSetAtom(releaseNotesDialogAtom);
   return useCallback(() => {
-    setDialogState({ open: true, manual: true });
+    // Defer so the opening tap does not trip FocusTrap click-outside on Android.
+    window.requestAnimationFrame(() => {
+      setDialogState({ open: true, manual: true });
+    });
   }, [setDialogState]);
 }
 
diff --git a/src/app/data/updateNotes.ts b/src/app/data/updateNotes.ts
index 497ab41..99b8f1e 100644
--- a/src/app/data/updateNotes.ts
+++ b/src/app/data/updateNotes.ts
@@ -1,5 +1,12 @@
+import bundledManifest from '../../../public/update/manifest.json';
 import { trimTrailingSlash } from '../utils/common';
 
+const bundledMarkdownByFile = import.meta.glob('../../../public/update/*.md', {
+  query: '?raw',
+  import: 'default',
+  eager: true,
+}) as Record<string, string>;
+
 function getUpdateBaseUrl(): string {
   const basePath = trimTrailingSlash(import.meta.env.BASE_URL || './');
   const relative =
@@ -64,9 +71,26 @@ function parseUpdateMarkdown(file: string, source: string): ParsedUpdateDoc {
   };
 }
 
+function loadBundledManifest(): UpdateManifest {
+  const manifest = bundledManifest as UpdateManifest;
+  return {
+    current: manifest.current,
+    older: (manifest.older ?? []).filter((entry) => entry?.file),
+  };
+}
+
+function loadBundledDocument(file: string): ParsedUpdateDoc | null {
+  const safeFile = file.replace(/^\/+/, '');
+  const entry = Object.entries(bundledMarkdownByFile).find(([path]) =>
+    path.endsWith(`/${safeFile}`)
+  );
+  if (!entry) return null;
+  return parseUpdateMarkdown(safeFile, entry[1]);
+}
+
 export function resolveUpdateAssetUrl(src: string | undefined): string | undefined {
   if (!src) return undefined;
-  if (/^(https?:|data:|blob:)/i.test(src)) return src;
+  if (/^(https?:|data:|blob:|capacitor:)/i.test(src)) return src;
   if (src.startsWith('/')) return src;
 
   const normalized = src.replace(/^\.\//, '');
@@ -76,15 +100,21 @@ export function resolveUpdateAssetUrl(src: string | undefined): string | undefin
 export async function loadUpdateManifest(): Promise<UpdateManifest | null> {
   try {
     const response = await fetch(getUpdateFileUrl('manifest.json'), { cache: 'no-cache' });
-    if (!response.ok) return null;
+    if (response.ok) {
+      const data = (await response.json()) as UpdateManifest;
+      if (data?.current && Array.isArray(data.older)) {
+        return {
+          current: data.current,
+          older: data.older.filter((entry) => entry?.file),
+        };
+      }
+    }
+  } catch {
+    // fall through to bundled copy (Capacitor / offline)
+  }
 
-    const data = (await response.json()) as UpdateManifest;
-    if (!data?.current || !Array.isArray(data.older)) return null;
-
-    return {
-      current: data.current,
-      older: data.older.filter((entry) => entry?.file),
-    };
+  try {
+    return loadBundledManifest();
   } catch {
     return null;
   }
@@ -96,13 +126,15 @@ export async function loadUpdateDocument(file: string): Promise<ParsedUpdateDoc
 
   try {
     const response = await fetch(getUpdateFileUrl(safeFile), { cache: 'no-cache' });
-    if (!response.ok) return null;
-
-    const source = await response.text();
-    return parseUpdateMarkdown(safeFile, source);
+    if (response.ok) {
+      const source = await response.text();
+      return parseUpdateMarkdown(safeFile, source);
+    }
   } catch {
-    return null;
+    // fall through to bundled copy
   }
+
+  return loadBundledDocument(safeFile);
 }
 
 export async function loadCurrentUpdateDocument(): Promise<ParsedUpdateDoc | null> {