diff --git a/public/docs.html b/public/docs.html
index a69e14b7..fa3894de 100644
--- a/public/docs.html
+++ b/public/docs.html
@@ -24,9 +24,9 @@
   <link rel="preload" href="/fonts/inter-400.woff2" as="font" type="font/woff2" crossorigin>
   <link rel="preload" href="/fonts/inter-700.woff2" as="font" type="font/woff2" crossorigin>
 
-  <link rel="stylesheet" href="/css/fonts.css?v=0.1.0.1761398485570">
-  <link rel="stylesheet" href="/css/tailwind.css?v=0.1.0.1761398485570">
-  <link rel="stylesheet" href="/css/tractatus-theme.min.css?v=0.1.0.1761398485570">
+  <link rel="stylesheet" href="/css/fonts.css?v=0.1.0.1761398900318">
+  <link rel="stylesheet" href="/css/tailwind.css?v=0.1.0.1761398900318">
+  <link rel="stylesheet" href="/css/tractatus-theme.min.css?v=0.1.0.1761398900318">
   <style>
     html { scroll-behavior: smooth; }
 
@@ -485,7 +485,7 @@
   <a href="#main-content" class="skip-link">Skip to main content</a>
 
   <!-- Navigation (injected by navbar.js) -->
-  <script src="/js/components/navbar.js?v=0.1.0.1761398485570" defer></script>
+  <script src="/js/components/navbar.js?v=0.1.0.1761398900318" defer></script>
 
   <!-- Page Header -->
   <div class="bg-white border-b border-gray-200">
@@ -496,16 +496,6 @@
           <p class="text-gray-600 mt-2">Technical specifications, guides, and reference materials</p>
         </div>
         <div class="flex items-center gap-3">
-          <!-- Language Selector -->
-          <div class="relative">
-            <select id="language-selector"
-                    class="px-4 py-2 bg-white border border-gray-300 rounded-lg hover:border-gray-400 transition text-sm font-medium text-gray-700 cursor-pointer focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent"
-                    aria-label="Select language">
-              <option value="en">🇬🇧 English</option>
-              <option value="de">🇩🇪 Deutsch</option>
-              <option value="fr">🇫🇷 Français</option>
-            </select>
-          </div>
           <!-- Search Button -->
           <button type="button" id="open-search-modal-btn" class="px-4 py-2 bg-blue-600 text-white rounded-lg hover:bg-blue-700 transition flex items-center gap-2" aria-label="Open search">
             <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
@@ -836,15 +826,15 @@
   </div>
 
   <!-- Version Management & PWA -->
-  <script src="/js/version-manager.js?v=0.1.0.1761398485570" defer></script>
+  <script src="/js/version-manager.js?v=0.1.0.1761398900318" defer></script>
 
-  <script src="/js/components/document-cards.js?v=0.1.0.1761398485570" defer></script>
-  <script src="/js/docs-app.js?v=0.1.0.1761398485570" defer></script>
-  <script src="/js/docs-search-enhanced.js?v=0.1.0.1761398485570" defer></script>
+  <script src="/js/components/document-cards.js?v=0.1.0.1761398900318" defer></script>
+  <script src="/js/docs-app.js?v=0.1.0.1761398900318" defer></script>
+  <script src="/js/docs-search-enhanced.js?v=0.1.0.1761398900318" defer></script>
 
   <!-- Internationalization -->
-  <script src="/js/i18n-simple.js?v=0.1.0.1761398485570" defer></script>
-  <script src="/js/components/language-selector.js?v=0.1.0.1761398485570" defer></script>
+  <script src="/js/i18n-simple.js?v=0.1.0.1761398900318" defer></script>
+  <script src="/js/components/language-selector.js?v=0.1.0.1761398900318" defer></script>
 
 </body>
 </html>
diff --git a/public/js/docs-app.js b/public/js/docs-app.js
index 9aa6b098..69bc3a0a 100644
--- a/public/js/docs-app.js
+++ b/public/js/docs-app.js
@@ -204,7 +204,7 @@ function detectLanguage() {
   }
 
   // Priority 2: localStorage
-  const storedLang = localStorage.getItem('tractatus_language');
+  const storedLang = localStorage.getItem('tractatus-lang');
   if (storedLang) {
     return storedLang;
   }
@@ -833,43 +833,6 @@ function closeToCModal() {
 // Initialize
 loadDocuments();
 
-// Initialize language selector and detect initial language
-(function initLanguageSelector() {
-  const selector = document.getElementById('language-selector');
-  if (!selector) return;
-
-  // Set initial value from current language
-  const initialLang = detectLanguage();
-  selector.value = initialLang;
-  currentLanguage = initialLang;
-
-  // Update page UI with initial language
-  updatePageUI(initialLang);
-
-  // Handle language change
-  selector.addEventListener('change', async (e) => {
-    const newLang = e.target.value;
-
-    // Save to localStorage
-    localStorage.setItem('tractatus_language', newLang);
-
-    // Update current language
-    currentLanguage = newLang;
-
-    // Update all page UI elements
-    updatePageUI(newLang);
-
-    // Reload document list to show translated category labels and document titles
-    const currentSlug = currentDocument ? currentDocument.slug : null;
-    await loadDocuments();
-
-    // If a document was loaded, reload it in the new language
-    if (currentSlug) {
-      loadDocument(currentSlug, newLang);
-    }
-  });
-})();
-
 // Add ESC key listener for closing modal
 document.addEventListener('keydown', (e) => {
   if (e.key === 'Escape') {
diff --git a/public/version.json b/public/version.json
index 67ee6fb0..bfe478e4 100644
--- a/public/version.json
+++ b/public/version.json
@@ -1,12 +1,12 @@
 {
-  "version": "0.1.1",
-  "buildDate": "2025-10-25T13:21:25.577Z",
+  "version": "0.1.2",
+  "buildDate": "2025-10-26T09:57:00.000Z",
   "changelog": [
-    "Mobile: Fixed calendar page loading issues with enhanced error handling",
-    "Cache: Service worker v0.1.2 - FORCE REFRESH for mobile cache fix",
-    "Admin: Improved API error reporting for calendar stats and tasks",
-    "Backend: DeepL translation API integrated for multilingual submissions"
+    "Docs: Fixed language persistence (localStorage key unified to 'tractatus-lang')",
+    "Docs: Removed duplicate language selector (now uses navbar flags only)",
+    "Docs: Language selection now persists across page reloads",
+    "Cache: Service worker v0.1.3 - Language selector fixes"
   ],
   "forceUpdate": true,
-  "minVersion": "0.1.2"
+  "minVersion": "0.1.3"
 }