diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9ce5b64a99..e07121d947 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,7 +6,7 @@ All notable changes to this project will be documented in this file.
 
 ### Added
 
-- **Add collections** (#37992, #37005, #37049, #37020, #37053, #37110, #37117, #37122, #37154, #37157, #37176, #37192, #37222, #37225, #37254, #37277, #37298, #37322, #37434, #37468, #37514, #37512, #37549, #37556, #37560, #37580, #37591, #37552, #37618, #37643, #37658, #37731, #37678, #37741, #37762, #37790, #37805, #37823, #37837, #37842, #37850, #37848, #37812, #37950, #37898, #37916, #37920, #37927, #37928, #37961, #37967, #37974, #37989, #37986, #38004, #38026, #38027, #38030, #38038, #38065, #38081, #38082, #38096, #38106, #38113, #38124, #38133, #38144, #38153, #38166, #38167, #38169, #38170, #38177, #38193, #38213, #38251, #38255, #38256, #38282, #38298, #38292, #38307, #38306, #38316, #38115, #38329, #38334, #38337, #38351, #38368, #38370, #38356, #38383, #38386, #38385, #38394, #38393, #38399, #38402, #38409, #38414, #38413, #38424, #38425, #38450, #38508, #38528, #38534, #38536, #38540, #38543, #38491, #38586, #38611, #38588, #38612, #38628, #38626, #38630, #38633, #38629, #38638, #38645, #38644, #38636, #38660, #38657, #38688, #38690, #38672, #38698, #38697, #38708, #38712, #38713, #38709, #38719, #38728, #38730, #38732, #38739, #38749, #38751, #38750, #38767, #38769, #38783, #38785, #38959, #38786, #38794, #38776, #38817, #38792, #38822, #38827, #38831, #38830, #38844, #38843, #38852, #38850, #38847, #38865, #38897, #38900, #38919, #38933, #38934, #38935, #38942, #38941, #38954, #38961, #38957, #38962, #38991, #39009, #39062, #39029, #39069, #39020, #39073, #39082, #39096, #39080, #39182, #39143, #39127, #37929, #38029, #39194, #39198, #39210, #39211, #39202, #39214, #39215, #39220, #39234, #39260, #39251, #39361, #39357, #39349, #39287, #39376, #39289, #39342, #38711, #39379, #39282, #39286, #39296, #39047, #39346, #39373, #39372 by @ChaosExAnima, @ClearlyClaire, @Gargron, @arte7, @diondiondion, @mjankowski, @oneiros, and @shleeable)
+- **Add collections** (#37992, #37005, #37049, #37020, #37053, #37110, #37117, #37122, #37154, #37157, #37176, #37192, #37222, #37225, #37254, #37277, #37298, #37322, #37434, #37468, #37514, #37512, #37549, #37556, #37560, #37580, #37591, #37552, #37618, #37643, #37658, #37731, #37678, #37741, #37762, #37790, #37805, #37823, #37837, #37842, #37850, #37848, #37812, #37950, #37898, #37916, #37920, #37927, #37928, #37961, #37967, #37974, #37989, #37986, #38004, #38026, #38027, #38030, #38038, #38065, #38081, #38082, #38096, #38106, #38113, #38124, #38133, #38144, #38153, #38166, #38167, #38169, #38170, #38177, #38193, #38213, #38251, #38255, #38256, #38282, #38298, #38292, #38307, #38306, #38316, #38115, #38329, #38334, #38337, #38351, #38368, #38370, #38356, #38383, #38386, #38385, #38394, #38393, #38399, #38402, #38409, #38414, #38413, #38424, #38425, #38450, #38508, #38528, #38534, #38536, #38540, #38543, #38491, #38586, #38611, #38588, #38612, #38628, #38626, #38630, #38633, #38629, #38638, #38645, #38644, #38636, #38660, #38657, #38688, #38690, #38672, #38698, #38697, #38708, #38712, #38713, #38709, #38719, #38728, #38730, #38732, #38739, #38749, #38751, #38750, #38767, #38769, #38783, #38785, #38959, #38786, #38794, #38776, #38817, #38792, #38822, #38827, #38831, #38830, #38844, #38843, #38852, #38850, #38847, #38865, #38897, #38900, #38919, #38933, #38934, #38935, #38942, #38941, #38954, #38961, #38957, #38962, #38991, #39009, #39062, #39029, #39069, #39020, #39073, #39082, #39096, #39080, #39182, #39143, #39127, #37929, #38029, #39194, #39198, #39210, #39211, #39202, #39214, #39215, #39220, #39234, #39260, #39251, #39361, #39357, #39349, #39287, #39376, #39289, #39342, #38711, #39379, #39282, #39286, #39296, #39047, #39346, #39373, #39372, and #39429 by @ChaosExAnima, @ClearlyClaire, @Gargron, @arte7, @diondiondion, @mjankowski, @oneiros, and @shleeable)
   - Create collections with up to 25 accounts each, then share them with others. You can read more about this feature [on our blog](https://blog.joinmastodon.org/2026/04/designing-collections/). This is based on FEP-7aa9 (Featured Collections) to be interoperable with the wider Fediverse. All the new API methods [are documented here](https://docs.joinmastodon.org/client/collections/).
 - **Add email subscriptions** (#38163, #38507, #38502, #38487, #38527, #38582, #38741, #38907, #39162, #39271 by @ClearlyClaire and @Gargron)
   - Admins can allow specific roles to enable email subscriptions on their profile, allowing anonymous visitors to subscribe to their posts via email.
@@ -27,7 +27,7 @@ All notable changes to this project will be documented in this file.
 - Add fallback attributes to notifications for new and infrequent notifications in REST API (#38832 and #38860 by @ClearlyClaire)
   - This adds a [`supported_types`](https://docs.joinmastodon.org/methods/notifications/#query-parameters-1) parameter to `GET /api/v1/notifications`, `GET /api/v1/notifications/:id`, `GET /api/v2/notifications`, and `GET /api/v2/notifications/:group_key` along with a new `fallback` attribute for notifications and notification groups.
 - Add support for posts in vertical languages in web UI (#37204, #38205, and #38797 by @shimon1024)
-- Add `PageUp` and `PageDown` hotkeys for list navigation (#39252 by @diondiondion)
+- Add `Alt` + `PageUp` and `Alt` + `PageDown` hotkeys for list navigation (#39252 and #39427 by @diondiondion)
 - Add `g`+`e` keyboard shortcut to access the trending page in web UI (#38014 by @antoinecellerier)
 - Add `Cmd`/`Ctrl`+`Enter` for form submissions in more text areas in web UI (#37821 by @diondiondion)
 - Add support for quoting by dragging a link into the compose form in web UI (#36859 and #36896 by @ClearlyClaire and @tribela)
@@ -57,7 +57,7 @@ All notable changes to this project will be documented in this file.
 - Change limitation to allow posts with both media and a poll to be created (#39203, #39368, #39388 by @ClearlyClaire and @Gargron)
 - Change alt text limit for media attachments to 10,000 characters (#39306 by @ClearlyClaire)
 - Change pending user notification email to link directly to the pending account (#39206 by @vmstan)
-- Changed emoji processing in web UI to make it less resource intensive and more robust (#39077, #39008, #39088, #38892, #38885, #38965, #38854, #38825, #38784, #38541, #37442, #37300, #37306, #37271, #37255, #37284, #37272, #37178, #37084, #37080, #37418, #39167, #39126, #39353, #39378, #39382 by @ChaosExAnima, @ClearlyClaire, @diondiondion, and @gomasy)
+- Changed emoji processing in web UI to make it less resource intensive and more robust (#39077, #39008, #39088, #38892, #38885, #38965, #38854, #38825, #38784, #38541, #37442, #37300, #37306, #37271, #37255, #37284, #37272, #37178, #37084, #37080, #37418, #39167, #39126, #39353, #39378, #39382, #39402, and #39421 by @ChaosExAnima, @ClearlyClaire, @diondiondion, @gomasy, and @Hanage999)
 - Change composer textarea to have a limited height to prevent column scrolling (#39268 by @diondiondion)
 - Change mentions of “Mastodon gGmbH” to “Mastodon GmbH” (#39261 by @renchap)
 - Change the limited profile message to be less misleading (#39231 by @mortie)
@@ -102,7 +102,8 @@ All notable changes to this project will be documented in this file.
 
 ### Fixed
 
-- Fix accessibility issues in web UI (#37250, #38006, #38033, #38188, #38230, #38252, #38257, #38285, #38293, #38362, #38387, #38459, #38796, #38801, #39098, #39111, #39120, #39129, #39133, #39134, #39144, #39145, #39149, #39164, #39165, #39169, #39181, #39335, #39305, #39331, #39356, #39350, #39358, #39360, #39325, #39270 by @ChaosExAnima and @diondiondion)
+- Fix accessibility issues in web UI (#37250, #38006, #38033, #38188, #38230, #38252, #38257, #38285, #38293, #38362, #38387, #38459, #38796, #38801, #39098, #39111, #39120, #39129, #39133, #39134, #39144, #39145, #39149, #39164, #39165, #39169, #39181, #39335, #39305, #39331, #39356, #39350, #39358, #39360, #39325, #39270, #39439, #39400, and #39408 by @ChaosExAnima and @diondiondion)
+- Fix error with audio player in Safari Lockdown Mode (#39397 by @Federicorao)
 - Fix tiny checkboxes and radio buttons in Safari (#39332 by @diondiondion)
 - Fix handling of offset in timezone list in settings (#39334 by @mjankowski)
 - Fix being unable to unmark media as sensitive when "always mark media as sensitive" is enabled in web UI (#39339 by @matrix07012)
@@ -110,6 +111,7 @@ All notable changes to this project will be documented in this file.
 - Fix some inputs incorrectly having resize handles in Firefox (#39274 by @diondiondion)
 - Fix processing some link previews where text is language-tagged (#39190 by @zunda)
 - Fix error when “New trends” email is sent at the same time trends are recomputed (#39122 by @arte7)
+- Fix hovercard not showing in compose column (#39430 by @diondiondion)
 - Fix hover card opening even when not preceded by mouse movement in web UI (#39166, #39381 by @diondiondion)
 - Fix [ominous](https://mastodon.social/@mcc/116404362104299129) "Moments remaining" timestamp in web UI (#38488 and #38689 by @ChaosExAnima and @MitarashiDango)
 - Fix filters not being applied to search results in web UI (#36346 by @ClearlyClaire)
diff --git a/Gemfile.lock b/Gemfile.lock
index fc3f577e08..22842a6379 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -456,7 +456,7 @@ GEM
     mutex_m (0.3.0)
     net-http (0.9.1)
       uri (>= 0.11.1)
-    net-imap (0.6.4)
+    net-imap (0.6.4.1)
       date
       net-protocol
     net-ldap (0.20.0)
diff --git a/app/javascript/entrypoints/wrapstodon.tsx b/app/javascript/entrypoints/wrapstodon.tsx
index 9fff41a133..814703f865 100644
--- a/app/javascript/entrypoints/wrapstodon.tsx
+++ b/app/javascript/entrypoints/wrapstodon.tsx
@@ -5,6 +5,7 @@ import { Provider as ReduxProvider } from 'react-redux';
 import { importFetchedStatuses } from '@/mastodon/actions/importer';
 import { hydrateStore } from '@/mastodon/actions/store';
 import type { ApiAnnualReportResponse } from '@/mastodon/api/annual_report';
+import { FocusTargetProvider } from '@/mastodon/components/navigation_focus_target';
 import { Router } from '@/mastodon/components/router';
 import { WrapstodonSharedPage } from '@/mastodon/features/annual_report/shared_page';
 import { IntlProvider, loadLocale } from '@/mastodon/locales';
@@ -52,7 +53,9 @@ function loaded() {
     <IntlProvider>
       <ReduxProvider store={store}>
         <Router>
-          <WrapstodonSharedPage />
+          <FocusTargetProvider>
+            <WrapstodonSharedPage />
+          </FocusTargetProvider>
         </Router>
       </ReduxProvider>
     </IntlProvider>,
diff --git a/app/javascript/mastodon/actions/importer/emoji.ts b/app/javascript/mastodon/actions/importer/emoji.ts
index 36fb04b51e..db15a8a9bf 100644
--- a/app/javascript/mastodon/actions/importer/emoji.ts
+++ b/app/javascript/mastodon/actions/importer/emoji.ts
@@ -22,10 +22,6 @@ export async function importCustomEmoji(emojis: ApiCustomEmojiJSON[]) {
     await clearCache('custom');
     await loadCustomEmoji();
 
-    const { reloadCustomEmojis } =
-      await import('@/mastodon/features/emoji/picker');
-    await reloadCustomEmojis();
-
     log('Custom emojis updated, reloaded cache and picker data.');
   }
 }
diff --git a/app/javascript/mastodon/components/account_header/styles.module.scss b/app/javascript/mastodon/components/account_header/styles.module.scss
index 4de49f79ae..48320a6ea4 100644
--- a/app/javascript/mastodon/components/account_header/styles.module.scss
+++ b/app/javascript/mastodon/components/account_header/styles.module.scss
@@ -278,6 +278,7 @@ $button-fallback-breakpoint: $button-breakpoint + 55px;
   font-size: 15px;
   color: var(--color-text-primary);
   unicode-bidi: plaintext;
+  overflow-wrap: anywhere;
 
   p {
     margin-bottom: 20px;
diff --git a/app/javascript/mastodon/components/hotkeys/index.tsx b/app/javascript/mastodon/components/hotkeys/index.tsx
index 481057bd7d..246255dcbe 100644
--- a/app/javascript/mastodon/components/hotkeys/index.tsx
+++ b/app/javascript/mastodon/components/hotkeys/index.tsx
@@ -1,6 +1,6 @@
 import { useEffect, useRef } from 'react';
 
-import { normalizeKey, isKeyboardEvent } from './utils';
+import { normalizeKey, isKeyboardEvent, matchesKeyCode } from './utils';
 
 /**
  * In case of multiple hotkeys matching the pressed key(s),
@@ -55,6 +55,30 @@ function any(...keys: string[]): KeyMatcher {
   });
 }
 
+/**
+ * Matches any matcher function out of those provided
+ */
+function anyMatcher(...matchers: KeyMatcher[]): KeyMatcher {
+  return (event) => {
+    let match: ReturnType<KeyMatcher> | undefined;
+
+    for (const matcher of matchers) {
+      const matcherResult = matcher(event);
+      if (matcherResult.isMatch) {
+        match = matcherResult;
+        break;
+      }
+    }
+
+    return (
+      match ?? {
+        isMatch: false,
+        priority: hotkeyPriority.singleKey,
+      }
+    );
+  };
+}
+
 /**
  * Matches a single key combined with the option/alt modifier
  */
@@ -62,7 +86,7 @@ function optionPlus(key: string): KeyMatcher {
   return (event) => ({
     // Matching against event.code here as alt combos are often
     // mapped to other characters
-    isMatch: event.altKey && event.code === `Key${key.toUpperCase()}`,
+    isMatch: event.altKey && matchesKeyCode(key, event.code),
     priority: hotkeyPriority.combo,
   });
 }
@@ -109,8 +133,8 @@ const hotkeyMatcherMap = {
   mention: just('m'),
   open: any('enter', 'o'),
   openProfile: just('p'),
-  moveDown: any('j', 'pagedown'),
-  moveUp: any('k', 'pageup'),
+  moveDown: anyMatcher(just('j'), optionPlus('pagedown')),
+  moveUp: anyMatcher(just('k'), optionPlus('pageup')),
   moveToTop: just('0'),
   toggleHidden: just('x'),
   toggleSensitive: just('h'),
@@ -188,7 +212,7 @@ export function useHotkeys<T extends HTMLElement>(handlers: HandlerMap) {
 
       if (shouldHandleEvent) {
         const matchCandidates: {
-          // A candidate will be have an undefined handler if it's matched,
+          // A candidate can have an undefined handler if it's matched,
           // but handled in a parent component rather than this one.
           handler: HandlerFunction | undefined;
           priority: number;
diff --git a/app/javascript/mastodon/components/hotkeys/utils.ts b/app/javascript/mastodon/components/hotkeys/utils.ts
index 1430e1685b..a5f0ddd64d 100644
--- a/app/javascript/mastodon/components/hotkeys/utils.ts
+++ b/app/javascript/mastodon/components/hotkeys/utils.ts
@@ -2,6 +2,9 @@ export function isKeyboardEvent(event: Event): event is KeyboardEvent {
   return 'key' in event;
 }
 
+/**
+ * Normalises key values to consistent lowercase strings
+ */
 export function normalizeKey(key: string): string {
   const lowerKey = key.toLowerCase();
 
@@ -27,3 +30,16 @@ export function normalizeKey(key: string): string {
       return lowerKey;
   }
 }
+
+/**
+ * Compare whether a key matches an `event.code` value,
+ * with support for single-letter keys (which are otherwise
+ * represented with a `Key` prefix, e.g. `m` is `KeyM`).
+ */
+export function matchesKeyCode(key: string, code: string) {
+  if (key.length === 1) {
+    return code === `Key${key.toUpperCase()}`;
+  } else {
+    return code.toLowerCase() === key.toLowerCase();
+  }
+}
diff --git a/app/javascript/mastodon/components/navigation_focus_target/index.tsx b/app/javascript/mastodon/components/navigation_focus_target/index.tsx
index f4b42926a8..1b86102fdf 100644
--- a/app/javascript/mastodon/components/navigation_focus_target/index.tsx
+++ b/app/javascript/mastodon/components/navigation_focus_target/index.tsx
@@ -55,13 +55,11 @@ export const FocusTargetProvider: React.FC<{
     | null
   >(null);
 
-  const {
-    pathname,
-    search,
-    state = {},
-  } = useLocation<{ focusTarget?: FocusTarget } | undefined>();
+  const { pathname, search, state } = useLocation<{
+    focusTarget?: FocusTarget;
+  } | null>();
 
-  const { focusTarget } = state;
+  const { focusTarget } = state ?? {};
 
   useLayoutEffect(() => {
     // We never want to set focus on page load, so we keep
@@ -102,15 +100,9 @@ export const FocusTargetProvider: React.FC<{
 export function useFocusOnNavigation(targetName?: string) {
   const focusTargetRef = useContext(FocusTargetContext);
 
-  if (focusTargetRef === null) {
-    throw Error(
-      'useFocusTargetContext must be used inside of a FocusTargetProvider',
-    );
-  }
-
   return useCallback(
     (element: HTMLElement | null) => {
-      const focusTarget = focusTargetRef.current;
+      const focusTarget = focusTargetRef?.current;
 
       // Bail out if focusTarget was set to `false`
       if (!element || !focusTarget) {
diff --git a/app/javascript/mastodon/features/account_edit/modals/fields_modals.tsx b/app/javascript/mastodon/features/account_edit/modals/fields_modals.tsx
index 9fc26ac525..0f2e7147ff 100644
--- a/app/javascript/mastodon/features/account_edit/modals/fields_modals.tsx
+++ b/app/javascript/mastodon/features/account_edit/modals/fields_modals.tsx
@@ -140,7 +140,7 @@ export const EditFieldModal = forwardRef<
 
   const customEmojis = useCustomEmojis();
   const customEmojiCodes = useMemo(
-    () => Object.keys(customEmojis ?? {}),
+    () => Object.keys(customEmojis),
     [customEmojis],
   );
   const checkField = useCallback(
diff --git a/app/javascript/mastodon/features/account_edit/styles.module.scss b/app/javascript/mastodon/features/account_edit/styles.module.scss
index 4991f8e7e5..0c8ba3b33a 100644
--- a/app/javascript/mastodon/features/account_edit/styles.module.scss
+++ b/app/javascript/mastodon/features/account_edit/styles.module.scss
@@ -41,6 +41,7 @@
 
 .bio {
   unicode-bidi: plaintext;
+  overflow-wrap: anywhere;
 
   p:not(:last-child) {
     margin-bottom: 20px;
diff --git a/app/javascript/mastodon/features/compose/components/emoji_picker_dropdown.jsx b/app/javascript/mastodon/features/compose/components/emoji_picker_dropdown.jsx
index 3da7bf1812..5da6eb8609 100644
--- a/app/javascript/mastodon/features/compose/components/emoji_picker_dropdown.jsx
+++ b/app/javascript/mastodon/features/compose/components/emoji_picker_dropdown.jsx
@@ -323,10 +323,7 @@ class EmojiPickerDropdown extends PureComponent {
       EmojiPickerAsync().then(EmojiMart => {
         EmojiPicker = EmojiMart.Picker;
         Emoji = EmojiMart.Emoji;
-
-        void EmojiMart.loadCustomEmojiData().then(() => {
-          this.setState({ loading: false });
-        });
+        this.setState({ loading: false });
       }).catch(() => {
         this.setState({ loading: false, active: false });
       });
diff --git a/app/javascript/mastodon/features/emoji/emoji_picker.tsx b/app/javascript/mastodon/features/emoji/emoji_picker.tsx
index 3661a7193b..15adf9fdc8 100644
--- a/app/javascript/mastodon/features/emoji/emoji_picker.tsx
+++ b/app/javascript/mastodon/features/emoji/emoji_picker.tsx
@@ -13,8 +13,6 @@ import { usePickerEmojis } from './picker';
 
 const backgroundImageFnDefault = () => `${assetHost}/emoji/sheet_16_0.png`;
 
-export { fetchCustomEmojiData as loadCustomEmojiData } from './picker';
-
 export const Picker: FC<PickerProps> = ({
   set = 'twitter',
   sheetSize = 32,
@@ -24,17 +22,13 @@ export const Picker: FC<PickerProps> = ({
   ...props
 }) => {
   const { mode } = useEmojiAppState();
-  const { customCategories, customEmojis } = usePickerEmojis();
-
-  if (!customEmojis) {
-    return null;
-  }
+  const { categories, emojis } = usePickerEmojis();
 
   return (
     <PickerRaw
       data={EmojiData}
-      custom={customEmojis}
-      include={customCategories}
+      custom={emojis}
+      include={categories}
       set={set}
       sheetSize={sheetSize}
       sheetColumns={sheetColumns}
diff --git a/app/javascript/mastodon/features/emoji/index.ts b/app/javascript/mastodon/features/emoji/index.ts
index d37d508935..a8aa60d3f8 100644
--- a/app/javascript/mastodon/features/emoji/index.ts
+++ b/app/javascript/mastodon/features/emoji/index.ts
@@ -1,7 +1,6 @@
 import { initialState } from '@/mastodon/initial_state';
 
 import { toSupportedLocale } from './locale';
-import { reloadCustomEmojis } from './picker';
 import type { EmojiWorkerMessage } from './types';
 import { emojiLogger } from './utils';
 
@@ -39,27 +38,37 @@ export async function initializeEmoji() {
     void fallbackLoad();
   }, WORKER_TIMEOUT);
 
-  tempWorker.addEventListener('message', (event: MessageEvent<string>) => {
-    const { data: message } = event;
+  tempWorker.addEventListener(
+    'message',
+    (event: MessageEvent<EmojiWorkerMessage>) => {
+      const { data: message } = event;
 
-    worker ??= tempWorker;
-    clearTimeout(timeoutId);
+      worker ??= tempWorker;
+      clearTimeout(timeoutId);
 
-    if (message !== 'ready') {
-      workerLog(message);
-      return;
-    }
+      const { type } = message;
+      if (type === 'log') {
+        workerLog(message.message);
+      } else if (type === 'done' && message.storeName === 'custom') {
+        void loadEmojisToStore();
+      }
 
-    const debugValue = localStorage.getItem('debug');
-    if (debugValue) {
-      messageWorker({ type: 'debug', debugValue });
-    }
+      if (type !== 'ready') {
+        return; // Exit for other messages.
+      }
 
-    workerLog('loading data');
-    messageWorker(userLocale);
-    messageWorker('custom');
-    messageWorker('shortcodes');
-  });
+      const debugValue = localStorage.getItem('debug');
+      if (debugValue) {
+        messageWorker({ type: 'debug', debugValue });
+      }
+
+      workerLog('loading data');
+      messageWorker(userLocale);
+      messageWorker('custom');
+      messageWorker('shortcodes');
+      void loadEmojisToStore();
+    },
+  );
 }
 
 async function fallbackLoad() {
@@ -71,8 +80,8 @@ async function fallbackLoad() {
   const customEmojis = await importCustomEmojiData();
   if (customEmojis && customEmojis.length > 0) {
     log('loaded %d custom emojis', customEmojis.length);
-    await reloadCustomEmojis();
   }
+
   const shortcodes = await importLegacyShortcodes();
   if (shortcodes?.length) {
     log('loaded %d legacy shortcodes', shortcodes.length);
@@ -82,6 +91,7 @@ async function fallbackLoad() {
   if (emojis) {
     log('loaded %d emojis to locale %s', emojis.length, userLocale);
   }
+  await loadEmojisToStore();
 }
 
 export async function loadCustomEmoji() {
@@ -92,9 +102,9 @@ export async function loadCustomEmoji() {
     const emojis = await importCustomEmojiData();
     if (emojis && emojis.length > 0) {
       log('loaded %d custom emojis', emojis.length);
-      await reloadCustomEmojis();
     }
   }
+  await loadEmojisToStore();
 }
 
 function messageWorker(data: EmojiWorkerMessage | string) {
@@ -110,3 +120,14 @@ function messageWorker(data: EmojiWorkerMessage | string) {
     worker.postMessage(data);
   }
 }
+
+async function loadEmojisToStore() {
+  const { store } = await import('@/mastodon/store');
+  const { loadCustomEmojis, loadLocale } =
+    await import('@/mastodon/reducers/slices/emojis');
+
+  loadLocale(userLocale);
+  await store.dispatch(loadCustomEmojis());
+
+  log('loaded emoji data into store');
+}
diff --git a/app/javascript/mastodon/features/emoji/mode.ts b/app/javascript/mastodon/features/emoji/mode.ts
index f7b0ea0216..32a0f2a893 100644
--- a/app/javascript/mastodon/features/emoji/mode.ts
+++ b/app/javascript/mastodon/features/emoji/mode.ts
@@ -27,7 +27,6 @@ export function useEmojiAppState(): EmojiAppState {
 
   return {
     currentLocale: locale,
-    locales: [locale],
     mode,
     darkTheme: isDarkMode(),
     assetHost,
@@ -64,7 +63,6 @@ export function getEmojiAppState(): EmojiAppState {
 
   return {
     currentLocale,
-    locales: [currentLocale],
     mode: determineEmojiMode(emojiStyle),
     darkTheme: isDarkMode(),
     assetHost,
diff --git a/app/javascript/mastodon/features/emoji/picker.ts b/app/javascript/mastodon/features/emoji/picker.ts
index 7acf878f51..9a49dd66ac 100644
--- a/app/javascript/mastodon/features/emoji/picker.ts
+++ b/app/javascript/mastodon/features/emoji/picker.ts
@@ -1,83 +1,18 @@
-import { useEffect, useState } from 'react';
-
 import type { CategoryName, CustomEmoji } from 'emoji-mart';
 
 import { autoPlayGif } from '@/mastodon/initial_state';
+import {
+  createAppSelector,
+  useAppSelector,
+} from '@/mastodon/store/typed_functions';
 import { createLimitedCache } from '@/mastodon/utils/cache';
 
 import { emojiLogger } from './utils';
 
 const log = emojiLogger('picker');
 
-let customEmojis: CustomEmoji[] | null = null;
-let customCategories = [
-  'recent',
-  'people',
-  'nature',
-  'foods',
-  'activity',
-  'places',
-  'objects',
-  'symbols',
-  'flags',
-] as CategoryName[];
-
 const searchCache = createLimitedCache<LegacyEmoji[]>({ maxSize: 10, log });
 
-export async function fetchCustomEmojiData() {
-  if (customEmojis !== null) {
-    return customEmojis;
-  }
-
-  const { loadAllCustomEmoji } = await import('./database');
-  const emojisRaw = await loadAllCustomEmoji();
-
-  // If it returns null then custom emojis aren't even loaded yet.
-  if (emojisRaw === null) {
-    return [];
-  }
-
-  // If it's empty, then they are loaded but there aren't any.
-  if (emojisRaw.length === 0) {
-    customEmojis = [];
-    return customEmojis;
-  }
-
-  const categories = new Set(['custom']);
-  const emojis = [];
-  for (const emoji of emojisRaw) {
-    const name = emoji.shortcode.replaceAll(':', '');
-    emojis.push({
-      name,
-      id: name,
-      custom: true,
-      short_names: [name],
-      imageUrl: autoPlayGif ? emoji.url : emoji.static_url,
-      customCategory: emoji.category,
-    });
-
-    if (emoji.category) {
-      categories.add(`custom-${emoji.category}`);
-    }
-  }
-
-  customEmojis = emojis.toSorted((a, b) => {
-    return a.name.toLowerCase().localeCompare(b.name.toLowerCase());
-  });
-  customCategories = customCategories.toSpliced(
-    1,
-    0,
-    ...(Array.from(categories).toSorted() as CategoryName[]),
-  );
-  log(
-    'loaded %d custom emojis in %d categories',
-    customEmojis.length,
-    categories.size,
-  );
-
-  return customEmojis;
-}
-
 type LegacyEmoji =
   | { id: string; custom?: false; native: string }
   | {
@@ -85,16 +20,6 @@ type LegacyEmoji =
       custom: true;
     };
 
-export async function reloadCustomEmojis() {
-  customEmojis = null;
-
-  const { loadEmojisIntoCache } =
-    await import('@/mastodon/hooks/useCustomEmojis');
-
-  await Promise.all([fetchCustomEmojiData(), loadEmojisIntoCache()]);
-  searchCache.clear();
-}
-
 // Replicates the old legacy search function.
 export async function emojiMartSearch(
   token: string,
@@ -127,19 +52,66 @@ export async function emojiMartSearch(
   return legacyResults;
 }
 
-export function usePickerEmojis() {
-  const [, setLoaded] = useState(customEmojis !== null);
+const defaultCategories = [
+  'people',
+  'nature',
+  'foods',
+  'activity',
+  'places',
+  'objects',
+  'symbols',
+  'flags',
+] as CategoryName[];
 
-  useEffect(() => {
-    if (customEmojis === null) {
-      void fetchCustomEmojiData().then(() => {
-        setLoaded(true);
-      });
+const selectPickerData = createAppSelector(
+  [(state) => state.emojis.custom, (state) => state.emojis.customCategories],
+  (emojis, categories) => {
+    // Create a map of shortcode to category name.
+    const categoryMap = new Map<string, string>();
+    for (const category in categories) {
+      const catEmojis = categories[category];
+      if (!catEmojis?.length) {
+        continue;
+      }
+      for (const shortcode of catEmojis) {
+        categoryMap.set(shortcode, category);
+      }
     }
-  }, []);
 
-  return {
-    customEmojis,
-    customCategories,
-  };
+    const customEmojis: CustomEmoji[] = [];
+    for (const shortcode in emojis) {
+      const emoji = emojis[shortcode];
+      if (!emoji) {
+        continue;
+      }
+
+      customEmojis.push({
+        name: shortcode,
+        id: shortcode,
+        custom: true,
+        short_names: [shortcode],
+        imageUrl: autoPlayGif ? emoji.url : emoji.static_url,
+        customCategory: categoryMap.get(shortcode),
+      } as CustomEmoji);
+    }
+
+    searchCache.clear();
+    log('regenerated the picker data');
+
+    return {
+      emojis: customEmojis,
+      categories: [
+        'recent',
+        'custom',
+        ...Object.keys(categories)
+          .toSorted()
+          .map((category) => `custom-${category}`),
+        ...defaultCategories,
+      ] as CategoryName[],
+    };
+  },
+);
+
+export function usePickerEmojis() {
+  return useAppSelector(selectPickerData);
 }
diff --git a/app/javascript/mastodon/features/emoji/render.ts b/app/javascript/mastodon/features/emoji/render.ts
index affa8e0f16..e5ac5bcc6e 100644
--- a/app/javascript/mastodon/features/emoji/render.ts
+++ b/app/javascript/mastodon/features/emoji/render.ts
@@ -109,7 +109,7 @@ export async function updateHtmlWithEmoji({
 }: {
   element: Element;
   locale: string;
-} & Omit<EmojiAppState, 'currentLocale' | 'locales'>) {
+} & Omit<EmojiAppState, 'currentLocale'>) {
   if (mode === EMOJI_MODE_NATIVE) {
     return;
   }
diff --git a/app/javascript/mastodon/features/emoji/types.ts b/app/javascript/mastodon/features/emoji/types.ts
index 5c9dc6e5c6..b6dbad47d2 100644
--- a/app/javascript/mastodon/features/emoji/types.ts
+++ b/app/javascript/mastodon/features/emoji/types.ts
@@ -28,7 +28,6 @@ export type CacheKey =
   | LocaleWithShortcodes;
 
 export interface EmojiAppState {
-  locales: Locale[];
   currentLocale: Locale;
   mode: EmojiMode;
   darkTheme: boolean;
@@ -82,10 +81,20 @@ export type ExtraCustomEmojiMap = Record<
 >;
 
 export type EmojiWorkerMessage =
+  | { type: 'ready' }
   | {
       type: 'load';
       storeName: string;
     }
+  | {
+      type: 'done';
+      storeName: string;
+      importCount: number;
+    }
+  | {
+      type: 'log';
+      message: string;
+    }
   | {
       type: 'debug';
       debugValue: string;
diff --git a/app/javascript/mastodon/features/emoji/worker.ts b/app/javascript/mastodon/features/emoji/worker.ts
index d4f002daf6..49b7ce45f1 100644
--- a/app/javascript/mastodon/features/emoji/worker.ts
+++ b/app/javascript/mastodon/features/emoji/worker.ts
@@ -9,13 +9,13 @@ import {
 import type { EmojiWorkerMessage } from './types';
 
 addEventListener('message', handleMessage);
-self.postMessage('ready'); // After the worker is ready, notify the main thread
+self.postMessage({ type: 'ready' } satisfies EmojiWorkerMessage); // After the worker is ready, notify the main thread
 
 function handleMessage(event: MessageEvent<EmojiWorkerMessage>) {
   const { data } = event;
   if (data.type === 'debug') {
     debug.enable(data.debugValue);
-  } else {
+  } else if (data.type === 'load') {
     void loadData(data.storeName);
   }
 }
@@ -31,6 +31,10 @@ async function loadData(storeName: string) {
   }
 
   if (importCount) {
-    self.postMessage(`loaded ${importCount} emojis into ${storeName}`);
+    self.postMessage({
+      type: 'done',
+      storeName,
+      importCount,
+    } satisfies EmojiWorkerMessage);
   }
 }
diff --git a/app/javascript/mastodon/features/keyboard_shortcuts/index.jsx b/app/javascript/mastodon/features/keyboard_shortcuts/index.jsx
index efc63ddfea..316493ac51 100644
--- a/app/javascript/mastodon/features/keyboard_shortcuts/index.jsx
+++ b/app/javascript/mastodon/features/keyboard_shortcuts/index.jsx
@@ -88,11 +88,11 @@ class KeyboardShortcuts extends ImmutablePureComponent {
                 <td><FormattedMessage id='keyboard_shortcuts.toggle_sensitivity' defaultMessage='to show/hide media' /></td>
               </tr>
               <tr>
-                <td><kbd>k</kbd>, <FormattedMessage id='keyboard_shortcuts.keys.page_up' defaultMessage='Page Up' tagName='kbd' /></td>
+                <td><kbd>k</kbd>, <FormattedMessage id='keyboard_shortcuts.keys.alt' defaultMessage='Alt' tagName='kbd' />+<FormattedMessage id='keyboard_shortcuts.keys.page_up' defaultMessage='Page Up' tagName='kbd' /></td>
                 <td><FormattedMessage id='keyboard_shortcuts.up' defaultMessage='to move up in the list' /></td>
               </tr>
               <tr>
-                <td><kbd>j</kbd>, <FormattedMessage id='keyboard_shortcuts.keys.page_down' defaultMessage='Page Down' tagName='kbd' /></td>
+                <td><kbd>j</kbd>, <FormattedMessage id='keyboard_shortcuts.keys.alt' defaultMessage='Alt' tagName='kbd' />+<FormattedMessage id='keyboard_shortcuts.keys.page_down' defaultMessage='Page Down' tagName='kbd' /></td>
                 <td><FormattedMessage id='keyboard_shortcuts.down' defaultMessage='to move down in the list' /></td>
               </tr>
               <tr>
diff --git a/app/javascript/mastodon/features/standalone/status/index.tsx b/app/javascript/mastodon/features/standalone/status/index.tsx
index a53d6e6b23..ccc3c2c5be 100644
--- a/app/javascript/mastodon/features/standalone/status/index.tsx
+++ b/app/javascript/mastodon/features/standalone/status/index.tsx
@@ -8,6 +8,7 @@ import { Provider } from 'react-redux';
 
 import { fetchStatus, toggleStatusSpoilers } from 'mastodon/actions/statuses';
 import { hydrateStore } from 'mastodon/actions/store';
+import { FocusTargetProvider } from 'mastodon/components/navigation_focus_target';
 import { Router } from 'mastodon/components/router';
 import { DetailedStatus } from 'mastodon/features/status/components/detailed_status';
 import { useRenderSignal } from 'mastodon/hooks/useRenderSignal';
@@ -79,7 +80,9 @@ export const Status: React.FC<{ id: string }> = ({ id }) => {
     <IntlProvider>
       <Provider store={store}>
         <Router>
-          <Embed id={id} />
+          <FocusTargetProvider>
+            <Embed id={id} />
+          </FocusTargetProvider>
         </Router>
       </Provider>
     </IntlProvider>
diff --git a/app/javascript/mastodon/hooks/useAudioContext.ts b/app/javascript/mastodon/hooks/useAudioContext.ts
index 84acf5ac7f..2cad7ee3a5 100644
--- a/app/javascript/mastodon/hooks/useAudioContext.ts
+++ b/app/javascript/mastodon/hooks/useAudioContext.ts
@@ -18,7 +18,7 @@ export const useAudioContext = ({ audioElementRef }: AudioContextOptions) => {
   const gainNodeRef = useRef<GainNode>();
 
   useEffect(() => {
-    if (!audioElementRef.current) {
+    if (!audioElementRef.current || typeof AudioContext === 'undefined') {
       return;
     }
 
@@ -43,13 +43,17 @@ export const useAudioContext = ({ audioElementRef }: AudioContextOptions) => {
   }, [audioElementRef]);
 
   const playAudio = useCallback(() => {
-    void audioElementRef.current?.play();
-    void audioContextRef.current?.resume();
+    if (audioContextRef.current && audioElementRef.current) {
+      void audioElementRef.current.play();
+      void audioContextRef.current.resume();
+    }
   }, [audioElementRef]);
 
   const pauseAudio = useCallback(() => {
-    audioElementRef.current?.pause();
-    void audioContextRef.current?.suspend();
+    if (audioContextRef.current && audioElementRef.current) {
+      audioElementRef.current.pause();
+      void audioContextRef.current.suspend();
+    }
   }, [audioElementRef]);
 
   return {
diff --git a/app/javascript/mastodon/hooks/useCustomEmojis.ts b/app/javascript/mastodon/hooks/useCustomEmojis.ts
index 6eb3c17fbf..213b7de062 100644
--- a/app/javascript/mastodon/hooks/useCustomEmojis.ts
+++ b/app/javascript/mastodon/hooks/useCustomEmojis.ts
@@ -1,40 +1,25 @@
-import { useEffect, useState } from 'react';
+import { createAppSelector, useAppSelector } from '@/mastodon/store';
 
 import type { ExtraCustomEmojiMap } from '../features/emoji/types';
-import { emojiLogger } from '../features/emoji/utils';
 
-let emojis: ExtraCustomEmojiMap | null = null;
-
-const log = emojiLogger('useCustomEmojis');
+const selectCustomEmojis = createAppSelector(
+  [(state) => state.emojis.custom],
+  (custom) => {
+    const emojis: ExtraCustomEmojiMap = {};
+    for (const shortcode in custom) {
+      const emoji = custom[shortcode];
+      if (!emoji) {
+        continue;
+      }
+      emojis[shortcode] = {
+        shortcode,
+        ...emoji,
+      };
+    }
+    return emojis;
+  },
+);
 
 export function useCustomEmojis() {
-  const [, setLoaded] = useState(emojis !== null);
-  useEffect(() => {
-    if (!emojis) {
-      void loadEmojisIntoCache().then(() => {
-        setLoaded(true);
-      });
-    }
-  }, []);
-
-  return emojis;
-}
-
-export async function loadEmojisIntoCache() {
-  const { loadAllCustomEmoji } = await import('../features/emoji/database');
-  const emojisRaw = await loadAllCustomEmoji();
-  if (emojisRaw === null) {
-    log('Custom emojis not loaded yet');
-    return;
-  }
-
-  emojis = {};
-  for (const emoji of emojisRaw) {
-    emojis[emoji.shortcode] = {
-      url: emoji.url,
-      shortcode: emoji.shortcode,
-      static_url: emoji.static_url,
-    };
-  }
-  log('Loaded %d custom emojis into cache', Object.keys(emojis).length);
+  return useAppSelector(selectCustomEmojis);
 }
diff --git a/app/javascript/mastodon/reducers/slices/emojis.ts b/app/javascript/mastodon/reducers/slices/emojis.ts
new file mode 100644
index 0000000000..28e9430c40
--- /dev/null
+++ b/app/javascript/mastodon/reducers/slices/emojis.ts
@@ -0,0 +1,71 @@
+import type { PayloadAction } from '@reduxjs/toolkit';
+import { createSlice } from '@reduxjs/toolkit';
+
+import type { Locale } from 'emojibase';
+
+import type { ApiCustomEmojiJSON } from '@/mastodon/api_types/custom_emoji';
+import { toSupportedLocale } from '@/mastodon/features/emoji/locale';
+import { createAsyncThunk } from '@/mastodon/store/typed_functions';
+
+interface EmojisState {
+  custom: Record<string, Pick<ApiCustomEmojiJSON, 'url' | 'static_url'>>;
+  customCategories: Record<string, string[]>; // { name: shortcodes[] }
+  customLoaded: boolean;
+  localesLoaded: Locale[];
+}
+
+const emojisSlice = createSlice({
+  name: 'emojis',
+  initialState: {
+    custom: {},
+    customCategories: {},
+    customLoaded: false,
+    localesLoaded: [],
+  } as EmojisState,
+  reducers: {
+    loadLocale(state, action: PayloadAction<string>) {
+      const locale = toSupportedLocale(action.payload);
+      if (!state.localesLoaded.includes(locale)) {
+        state.localesLoaded.push(locale);
+      }
+    },
+  },
+  extraReducers(builder) {
+    builder.addAsyncThunk(loadCustomEmojis, {
+      fulfilled(state, action) {
+        if (!action.payload?.length) {
+          return;
+        }
+
+        for (const emoji of action.payload) {
+          const { shortcode, category, url, static_url } = emoji;
+          state.custom[shortcode] = {
+            url,
+            static_url,
+          };
+
+          if (category) {
+            state.customCategories[category] ??= [];
+            if (!state.customCategories[category].includes(shortcode)) {
+              state.customCategories[category].push(shortcode);
+            }
+          }
+
+          state.customLoaded = true;
+        }
+      },
+    });
+  },
+});
+
+export const emojis = emojisSlice.reducer;
+export const { loadLocale } = emojisSlice.actions;
+
+export const loadCustomEmojis = createAsyncThunk(
+  `${emojisSlice.name}/loadCustomEmojis`,
+  async () => {
+    const { loadAllCustomEmoji } =
+      await import('@/mastodon/features/emoji/database');
+    return loadAllCustomEmoji();
+  },
+);
diff --git a/app/javascript/mastodon/reducers/slices/index.ts b/app/javascript/mastodon/reducers/slices/index.ts
index 8d4ecd552d..1b94687cc6 100644
--- a/app/javascript/mastodon/reducers/slices/index.ts
+++ b/app/javascript/mastodon/reducers/slices/index.ts
@@ -1,9 +1,11 @@
 import { annualReport } from './annual_report';
 import { collections } from './collections';
+import { emojis } from './emojis';
 import { profileEdit } from './profile_edit';
 
 export const sliceReducers = {
   annualReport,
   collections,
+  emojis,
   profileEdit,
 };
diff --git a/app/javascript/styles/mastodon/components.scss b/app/javascript/styles/mastodon/components.scss
index 577288ce23..790b6584cc 100644
--- a/app/javascript/styles/mastodon/components.scss
+++ b/app/javascript/styles/mastodon/components.scss
@@ -3017,7 +3017,6 @@ a.account__display-name {
 
     &__pane {
       height: 100%;
-      overflow: hidden;
       display: flex;
       justify-content: flex-end;
       min-width: 285px;
diff --git a/app/models/collection.rb b/app/models/collection.rb
index 337126b145..329460b574 100644
--- a/app/models/collection.rb
+++ b/app/models/collection.rb
@@ -33,6 +33,7 @@ class Collection < ApplicationRecord
   has_many :accepted_collection_items, -> { accepted }, class_name: 'CollectionItem', inverse_of: :collection # rubocop:disable Rails/HasManyOrHasOneDependent
   has_many :collection_reports, dependent: :delete_all
   has_many :accounts, -> { merge(CollectionItem.pending_or_accepted) }, through: :collection_items
+  has_many :notifications, as: :activity, dependent: :destroy
 
   validates :name, presence: true
   validates :name, length: { maximum: 40 }, if: :local?
diff --git a/app/models/notification.rb b/app/models/notification.rb
index 9a1a366869..a8fb5e53bd 100644
--- a/app/models/notification.rb
+++ b/app/models/notification.rb
@@ -136,7 +136,7 @@ class Notification < ApplicationRecord
     belongs_to :generated_annual_report, inverse_of: false
     belongs_to :quote, inverse_of: :notification
     belongs_to :collection_item, inverse_of: false # TODO: have an inverse?
-    belongs_to :collection, inverse_of: false # TODO: have an inverse?
+    belongs_to :collection, inverse_of: :notifications
   end
 
   validates :type, inclusion: { in: TYPES }
diff --git a/app/serializers/rest/instance_serializer.rb b/app/serializers/rest/instance_serializer.rb
index b3c58f7c00..9a099a4fd4 100644
--- a/app/serializers/rest/instance_serializer.rb
+++ b/app/serializers/rest/instance_serializer.rb
@@ -31,6 +31,7 @@ class REST::InstanceSerializer < ActiveModel::Serializer
     else
       {
         url: frontend_asset_url('images/preview.png'),
+        description: I18n.t('about.default_thumbnail_description', locale: object.languages[0]),
       }
     end
   end
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 03c281c3d1..6309e1a22b 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -4,6 +4,7 @@ en:
     about_mastodon_html: 'The social network of the future: No ads, no corporate surveillance, ethical design, and decentralization! Own your data with Mastodon!'
     contact_missing: Not set
     contact_unavailable: N/A
+    default_thumbnail_description: Two smiling cartoon mastodons (who look like elephants) toss a paper plane between them. They're surrounded by a bright blue sky and floating planets with trees and more mastodons on them.
     hosted_on: Mastodon hosted on %{domain}
     title: About
   accounts:
diff --git a/config/vite/plugin-sw-chunk-paths.ts b/config/vite/plugin-sw-chunk-paths.ts
new file mode 100644
index 0000000000..bcbf468904
--- /dev/null
+++ b/config/vite/plugin-sw-chunk-paths.ts
@@ -0,0 +1,61 @@
+/* The service worker is built as a regular Vite entry point and is served from
+   `/sw.js` (a symlink to `packs/sw.js`), while the chunks it depends on live in
+   the build output directory (e.g. `/packs/`).
+
+   Browsers resolve a module's static import specifiers relative to the *URL* of
+   the script, not its location on disk. Because the worker is served from the
+   root, relative specifiers such as `./chunk-abc123.js` resolve to
+   `/chunk-abc123.js` and return a 404, which prevents the service worker from
+   installing.
+
+   This plugin rewrites those relative specifiers in the service worker output
+   to absolute paths pointing at the build output directory, so they resolve
+   correctly regardless of the URL the worker is served from.
+*/
+
+import type { Plugin, ResolvedConfig } from 'vite';
+
+const SERVICE_WORKER_FILENAME = 'sw.js';
+
+export function MastodonServiceWorkerChunkPaths(): Plugin {
+  let config: ResolvedConfig;
+
+  return {
+    name: 'mastodon-sw-chunk-paths',
+    configResolved(resolvedConfig) {
+      config = resolvedConfig;
+    },
+    renderChunk(code, chunk) {
+      if (chunk.fileName !== SERVICE_WORKER_FILENAME) {
+        return null;
+      }
+
+      // Resolve the base from the final Vite config rather than receiving it as
+      // an argument, so forks or other plugins that alter `base` are respected.
+      // Vite normalises `base` to always include a trailing slash.
+      const { base } = config;
+
+      // Drive the rewrite from the chunk's actual dependency list rather than a
+      // generic regex, so we only ever touch real (hashed) chunk specifiers and
+      // never accidentally match similar-looking text inside string literals.
+      const dependencies = [...chunk.imports, ...chunk.dynamicImports];
+
+      let rewritten = code;
+      for (const dependency of dependencies) {
+        // The worker sits at the root of the output directory, so each
+        // dependency is imported with a leading `./`.
+        rewritten = rewritten
+          .replaceAll(`"./${dependency}"`, `"${base}${dependency}"`)
+          .replaceAll(`'./${dependency}'`, `'${base}${dependency}'`);
+      }
+
+      if (rewritten === code) {
+        return null;
+      }
+
+      // Only import specifiers are changed, so the existing source map stays
+      // accurate enough; returning `null` avoids a spurious sourcemap warning.
+      return { code: rewritten, map: null };
+    },
+  };
+}
diff --git a/lib/mastodon/version.rb b/lib/mastodon/version.rb
index ffdfdbea21..dd91302030 100644
--- a/lib/mastodon/version.rb
+++ b/lib/mastodon/version.rb
@@ -17,7 +17,7 @@ module Mastodon
     end
 
     def default_prerelease
-      'rc.1'
+      'rc.2'
     end
 
     def prerelease
diff --git a/spec/models/collection_spec.rb b/spec/models/collection_spec.rb
index 67b51fdcea..16322aff9f 100644
--- a/spec/models/collection_spec.rb
+++ b/spec/models/collection_spec.rb
@@ -221,4 +221,19 @@ RSpec.describe Collection do
       expect(subject.to_log_permalink).to eq ActivityPub::TagManager.instance.uri_for(subject)
     end
   end
+
+  describe '#destroy' do
+    let(:collection) { Fabricate(:collection) }
+
+    before do
+      Fabricate(:notification, activity: collection, type: :added_to_collection)
+      Fabricate(:notification, activity: collection, type: :collection_update)
+    end
+
+    it 'removes the collection and all notifications that reference it' do
+      expect { collection.destroy }
+        .to change(described_class, :count).by(-1)
+        .and change(Notification, :count).by(-2)
+    end
+  end
 end
diff --git a/vite.config.mts b/vite.config.mts
index 87ee8b0520..81e83f4be5 100644
--- a/vite.config.mts
+++ b/vite.config.mts
@@ -22,6 +22,7 @@ import svgr from 'vite-plugin-svgr';
 import { MastodonAssetsManifest } from './config/vite/plugin-assets-manifest';
 import { GlitchThemes as MastodonThemes } from './config/vite/plugin-glitch-themes';
 import { MastodonNameLookup } from './config/vite/plugin-name-lookup';
+import { MastodonServiceWorkerChunkPaths } from './config/vite/plugin-sw-chunk-paths';
 import { MastodonServiceWorkerLocales } from './config/vite/plugin-sw-locales';
 
 const jsRoot = path.resolve(__dirname, 'app/javascript');
@@ -185,6 +186,7 @@ export const config: UserConfigFnPromise = async ({ mode, command }) => {
       MastodonThemes(),
       MastodonAssetsManifest(),
       MastodonServiceWorkerLocales(),
+      MastodonServiceWorkerChunkPaths(),
       legacy({
         renderLegacyChunks: false,
         modernPolyfills: true,