diff --git a/package-lock.json b/package-lock.json
index 35c410bc..0a35ca6c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "cinny",
-  "version": "4.10.2",
+  "version": "4.10.3",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "cinny",
-      "version": "4.10.2",
+      "version": "4.10.3",
       "license": "AGPL-3.0-only",
       "dependencies": {
         "@atlaskit/pragmatic-drag-and-drop": "1.1.6",
diff --git a/package.json b/package.json
index 06e830c6..40e64554 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cinny",
-  "version": "4.10.2",
+  "version": "4.10.3",
   "description": "Yet another matrix client",
   "main": "index.js",
   "type": "module",
diff --git a/src/app/components/BackRouteHandler.tsx b/src/app/components/BackRouteHandler.tsx
index fa3d7592..3b13e487 100644
--- a/src/app/components/BackRouteHandler.tsx
+++ b/src/app/components/BackRouteHandler.tsx
@@ -51,8 +51,12 @@ export function BackRouteHandler({ children }: BackRouteHandlerProps) {
       },
       location.pathname
     );
-    if (spaceMatch?.params.spaceIdOrAlias) {
-      navigate(getSpacePath(spaceMatch.params.spaceIdOrAlias));
+    const encodedSpaceIdOrAlias = spaceMatch?.params.spaceIdOrAlias;
+    const decodedSpaceIdOrAlias =
+      encodedSpaceIdOrAlias && decodeURIComponent(encodedSpaceIdOrAlias);
+
+    if (decodedSpaceIdOrAlias) {
+      navigate(getSpacePath(decodedSpaceIdOrAlias));
       return;
     }
     if (
diff --git a/src/app/features/settings/about/About.tsx b/src/app/features/settings/about/About.tsx
index f2cabf1d..7cf121d5 100644
--- a/src/app/features/settings/about/About.tsx
+++ b/src/app/features/settings/about/About.tsx
@@ -46,7 +46,7 @@ export function About({ requestClose }: AboutProps) {
                   <Box direction="Column" gap="100">
                     <Box gap="100" alignItems="End">
                       <Text size="H3">Cinny</Text>
-                      <Text size="T200">v4.10.2</Text>
+                      <Text size="T200">v4.10.3</Text>
                     </Box>
                     <Text>Yet another matrix client.</Text>
                   </Box>
diff --git a/src/app/pages/auth/AuthFooter.tsx b/src/app/pages/auth/AuthFooter.tsx
index d53ef9a6..124b0384 100644
--- a/src/app/pages/auth/AuthFooter.tsx
+++ b/src/app/pages/auth/AuthFooter.tsx
@@ -15,7 +15,7 @@ export function AuthFooter() {
         target="_blank"
         rel="noreferrer"
       >
-        v4.10.2
+        v4.10.3
       </Text>
       <Text as="a" size="T300" href="https://twitter.com/cinnyapp" target="_blank" rel="noreferrer">
         Twitter
diff --git a/src/app/pages/client/WelcomePage.tsx b/src/app/pages/client/WelcomePage.tsx
index 6eb33a16..969a5cd4 100644
--- a/src/app/pages/client/WelcomePage.tsx
+++ b/src/app/pages/client/WelcomePage.tsx
@@ -24,7 +24,7 @@ export function WelcomePage() {
                   target="_blank"
                   rel="noreferrer noopener"
                 >
-                  v4.10.2
+                  v4.10.3
                 </a>
               </span>
             }
diff --git a/src/app/utils/notifications.ts b/src/app/utils/notifications.ts
index edab9196..a23bd1a4 100644
--- a/src/app/utils/notifications.ts
+++ b/src/app/utils/notifications.ts
@@ -1,6 +1,6 @@
 import { MatrixClient, ReceiptType } from 'matrix-js-sdk';
 
-export async function markAsRead(mx: MatrixClient, roomId: string, privateReceipt?: boolean) {
+export async function markAsRead(mx: MatrixClient, roomId: string, privateReceipt: boolean) {
   const room = mx.getRoom(roomId);
   if (!room) return;
 
@@ -19,15 +19,8 @@ export async function markAsRead(mx: MatrixClient, roomId: string, privateReceip
   const latestEvent = getLatestValidEvent();
   if (latestEvent === null) return;
 
-  const latestEventId = latestEvent.getId();
-  if (!latestEventId) return;
-
-  // Set both the read receipt AND the fully_read marker
-  // The fully_read marker is what persists your read position across sessions
-  await mx.setRoomReadMarkers(
-    roomId,
-    latestEventId, // m.fully_read marker
-    latestEvent,   // m.read receipt event
-    privateReceipt ? { receiptType: ReceiptType.ReadPrivate } : undefined
+  await mx.sendReadReceipt(
+    latestEvent,
+    privateReceipt ? ReceiptType.ReadPrivate : ReceiptType.Read
   );
 }
diff --git a/src/app/utils/sanitize.ts b/src/app/utils/sanitize.ts
index 985c47b1..28e0db59 100644
--- a/src/app/utils/sanitize.ts
+++ b/src/app/utils/sanitize.ts
@@ -100,7 +100,7 @@ const transformATag: Transformer = (tagName, attribs) => ({
   tagName,
   attribs: {
     ...attribs,
-    rel: 'noopener',
+    rel: 'noreferrer noopener',
     target: '_blank',
   },
 });
@@ -112,7 +112,7 @@ const transformImgTag: Transformer = (tagName, attribs) => {
       tagName: 'a',
       attribs: {
         href: src,
-        rel: 'noopener',
+        rel: 'noreferrer noopener',
         target: '_blank',
       },
       text: attribs.alt || src,
diff --git a/src/index.tsx b/src/index.tsx
index 0019a224..71e723ab 100644
--- a/src/index.tsx
+++ b/src/index.tsx
@@ -27,10 +27,24 @@ if ('serviceWorker' in navigator) {
       ? `${trimTrailingSlash(import.meta.env.BASE_URL)}/sw.js`
       : `/dev-sw.js?dev-sw`;
 
-  navigator.serviceWorker.register(swUrl).then(() => {
+  const sendSessionToSW = () => {
     const session = getFallbackSession();
     pushSessionToSW(session?.baseUrl, session?.accessToken);
+  };
+
+  navigator.serviceWorker.register(swUrl).then(sendSessionToSW);
+  navigator.serviceWorker.ready.then(sendSessionToSW);
+  window.addEventListener('load', sendSessionToSW);
+
+  // When returning from background
+  document.addEventListener('visibilitychange', () => {
+    if (document.visibilityState === 'visible') {
+      sendSessionToSW();
+    }
   });
+
+  // When restored from bfcache (important on iOS)
+  window.addEventListener('pageshow', sendSessionToSW);
 }
 
 const mountApp = () => {