diff --git a/releases-manifest.json b/releases-manifest.json
index 00f6f4c..c6e0b73 100644
--- a/releases-manifest.json
+++ b/releases-manifest.json
@@ -1,6 +1,6 @@
 {
   "schema": "silentmode-releases/2",
-  "updated": "2026-09-22",
+  "updated": "2026-09-23",
   "mirrors": [
     "https://dl.silentmode.st/"
   ],
@@ -8,15 +8,15 @@
     {
       "id": "theseus-navigator",
       "product": "Theseus Navigator",
-      "version": "0.3.54",
-      "date": "2026-09-22",
+      "version": "0.3.55",
+      "date": "2026-09-23",
       "platform": "win-x64",
       "signed": false,
       "signingAuthority": null,
-      "changes": "An add-on can no longer restart Theseus on its own. Aegis relaunched the whole browser after staging its own update, mid-session and without warning; the add-on API's restart now shows a native dialog (Restart now / Later, Later is the default) and a declined restart loses nothing, since a staged update applies at the next normal launch. The guard lives in the browser, so it covers every Aegis version on the channel and any future add-on. Includes everything from 0.3.53: extension updates re-checked every 4 hours, announced by a toolbar chip and installed in place; the compact Extensions page with detail view; drag-to-reorder toolbar buttons with a right-click menu; the new-tab button next to the last tab.",
+      "changes": "Fixes a fatal \"uncaught exception\" that could appear right after Theseus relaunched itself (for example after Aegis applied its own update) or when it was started from a terminal: the new process inherited a stdout pipe that then died, and the next diagnostic line the add-on host printed was reported as a crash. Diagnostics that cannot be written are now dropped silently. Also: PDF Editor 0.3.x edits stay editable after a text replacement. Includes 0.3.54 (add-ons ask before restarting the browser) and 0.3.53 (extension updates re-checked every 4 hours, announced by a toolbar chip and installed in place; compact Extensions page; drag-to-reorder toolbar buttons).",
       "files": {
-        "TheseusNavigator-0.3.54-portable.exe": "4ccf40554531594d677b2b24495111c34efbe16884748f95c549de50e3e9cb67",
-        "TheseusNavigator-Setup-0.3.54.exe": "ce31af6f9728b6874c03da8aecb8794c481797f60aeb203111a1700d67b107a4"
+        "TheseusNavigator-0.3.55-portable.exe": "d10707808d8422272da38f15021cab5657ee63b1a913aafdf033045430b6acef",
+        "TheseusNavigator-Setup-0.3.55.exe": "01ce50316ab6bee4f1d23b3af45d77683e24dcd0e02b8f1988f8b157afb13936"
       }
     },
     {
diff --git a/releases/index.html b/releases/index.html
index fb0faba..286ad74 100644
--- a/releases/index.html
+++ b/releases/index.html
@@ -58,16 +58,16 @@
      mirror cannot change what you check against here.</p>
 
   <div class="rel">
-    <h2>Theseus Navigator <span style="color:var(--acid)">0.3.54</span></h2>
-    <div class="meta">Windows 64-bit · unsigned · 2026-09-22 · <b>0.3.54 — add-ons ask before restarting the browser</b> — An add-on can no longer restart Theseus on its own. Aegis relaunched the whole browser after staging its own update, mid-session and without warning; the add-on API's restart now shows a native dialog (Restart now / Later, Later is the default) and a declined restart loses nothing, since a staged update applies at the next normal launch. The guard lives in the browser, so it covers every Aegis version on the channel and any future add-on. Includes everything from 0.3.53: extension updates re-checked every 4 hours, announced by a toolbar chip and installed in place; the compact Extensions page with detail view; drag-to-reorder toolbar buttons with a right-click menu; the new-tab button next to the last tab.</div>
+    <h2>Theseus Navigator <span style="color:var(--acid)">0.3.55</span></h2>
+    <div class="meta">Windows 64-bit · unsigned · 2026-09-23 · <b>0.3.55 — no more fatal error after a self-restart</b> — Fixes a fatal "uncaught exception" that could appear right after Theseus relaunched itself (for example after Aegis applied its own update) or when it was started from a terminal: the new process inherited a stdout pipe that then died, and the next diagnostic line the add-on host printed was reported as a crash. Diagnostics that cannot be written are now dropped silently. Also: PDF Editor 0.3.x edits stay editable after a text replacement. Includes 0.3.54 (add-ons ask before restarting the browser) and 0.3.53 (extension updates re-checked every 4 hours, announced by a toolbar chip and installed in place; compact Extensions page; drag-to-reorder toolbar buttons).</div>
 
     <div class="file">
-      <div class="n"><a href="https://dl.silentmode.st/TheseusNavigator-Setup-0.3.54.exe">TheseusNavigator-Setup-0.3.54.exe</a> — installer</div>
-      <code>ce31af6f9728b6874c03da8aecb8794c481797f60aeb203111a1700d67b107a4</code>
+      <div class="n"><a href="https://dl.silentmode.st/TheseusNavigator-Setup-0.3.55.exe">TheseusNavigator-Setup-0.3.55.exe</a> — installer</div>
+      <code>01ce50316ab6bee4f1d23b3af45d77683e24dcd0e02b8f1988f8b157afb13936</code>
     </div>
     <div class="file">
-      <div class="n"><a href="https://dl.silentmode.st/TheseusNavigator-0.3.54-portable.exe">TheseusNavigator-0.3.54-portable.exe</a> — portable</div>
-      <code>4ccf40554531594d677b2b24495111c34efbe16884748f95c549de50e3e9cb67</code>
+      <div class="n"><a href="https://dl.silentmode.st/TheseusNavigator-0.3.55-portable.exe">TheseusNavigator-0.3.55-portable.exe</a> — portable</div>
+      <code>d10707808d8422272da38f15021cab5657ee63b1a913aafdf033045430b6acef</code>
     </div>
   </div>
 
diff --git a/theseus/index.html b/theseus/index.html
index 2835ff9..1a358f7 100644
--- a/theseus/index.html
+++ b/theseus/index.html
@@ -144,7 +144,7 @@
         <h3>Theseus for Windows</h3>
         <p class="desc">Full-window desktop browser with Tor toggle, search bar, password
            vault and add-ons. macOS and Linux not yet packaged.</p>
-        <div class="meta">v0.3.54 · installer ~134 MB · portable ~134 MB · unsigned</div>
+        <div class="meta">v0.3.55 · installer ~134 MB · portable ~134 MB · unsigned</div>
         <div class="buttons">
           <a class="btn acid" href="https://dl.silentmode.st/latest/TheseusNavigator-Setup.exe">Installer</a>
           <a class="btn ghost" href="https://dl.silentmode.st/latest/TheseusNavigator-portable.exe">Portable .exe</a>