diff --git a/CHANGELOG.md b/CHANGELOG.md
index b179a57243..5c9233b6fa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -333,7 +333,9 @@ Recap: Mastodon v4.3 features (https://github.com/mastodon/mastodon/releases/tag
 - 🙈 Handle Mastodon's upcoming `blur` filter https://mastodon.social/@cheeaun/114301571477875063
 - 🐛 Bug fixes
 
-## Next
+## June 8, 2025
+
+📢 https://mastodon.social/@cheeaun/114647753143423772
 
 - 🌟 Featured profiles (for upcoming Mastodon v4.4)
 - 🔑 Revoke access token when logging out
diff --git a/src/polyfills.js b/src/polyfills.js
index 514dad86bc..83ed700733 100644
--- a/src/polyfills.js
+++ b/src/polyfills.js
@@ -11,6 +11,36 @@ if ('AbortSignal' in window) {
     });
 }
 
+// AbortSignal.any polyfill
+// Based on https://github.com/mozilla/pdf.js/pull/19681/files
+if ('AbortSignal' in window && !AbortSignal.any) {
+  AbortSignal.any = function (iterable) {
+    const ac = new AbortController();
+    const { signal } = ac;
+
+    // Return immediately if any of the signals are already aborted.
+    for (const s of iterable) {
+      if (s.aborted) {
+        ac.abort(s.reason);
+        return signal;
+      }
+    }
+
+    // Register "abort" listeners for all signals.
+    for (const s of iterable) {
+      s.addEventListener(
+        'abort',
+        () => {
+          ac.abort(s.reason);
+        },
+        { signal }, // Automatically remove the listener.
+      );
+    }
+
+    return signal;
+  };
+}
+
 // URL.parse() polyfill
 if ('URL' in window && typeof URL.parse !== 'function') {
   URL.parse = function (url, base) {