diff --git a/lib/app/changelog.dart b/lib/app/changelog.dart
index b48ab2f..9157147 100644
--- a/lib/app/changelog.dart
+++ b/lib/app/changelog.dart
@@ -1,4 +1,13 @@
 const lunarisChangelog = [
+  LunarisChange(
+    version: '2.3.5',
+    title: 'Fullscreen Video Auto-Rotation & Orientation Controls',
+    bullets: [
+      'Smart Fullscreen Auto-Rotation: entering fullscreen mode on horizontal/landscape videos automatically snaps the device into landscape orientation for maximum viewing area, while vertical/portrait videos stay in portrait mode.',
+      'Manual Orientation Toggle: added a quick-access rotation button (Icons.screen_lock_portrait / landscape) directly in the fullscreen top bar next to the close button, allowing 1-tap switching between landscape and portrait.',
+      'Clean Orientation Recovery: exiting fullscreen seamlessly restores system navigation bars (Edge-to-Edge) and restores unrestricted device sensor orientations.',
+    ],
+  ),
   LunarisChange(
     version: '2.3.4',
     title: 'OverlayPortal Architecture & Search UI Unblocking',
diff --git a/lib/features/post/presentation/widgets/post_media_viewer.dart b/lib/features/post/presentation/widgets/post_media_viewer.dart
index a1a2ac2..a194dd7 100644
--- a/lib/features/post/presentation/widgets/post_media_viewer.dart
+++ b/lib/features/post/presentation/widgets/post_media_viewer.dart
@@ -701,6 +701,7 @@ class _FullscreenVideoPageState extends State<_FullscreenVideoPage> {
   late bool _muted;
   late bool _loopVideo;
   late bool _halfVolume;
+  late bool _isLandscape;
   Timer? _hideTimer;
 
   @override
@@ -710,15 +711,32 @@ class _FullscreenVideoPageState extends State<_FullscreenVideoPage> {
     _muted = widget.muted;
     _loopVideo = widget.loopVideo;
     _halfVolume = widget.halfVolume;
+    _isLandscape = widget.aspectRatio > 1.05;
     SystemChrome.setEnabledSystemUIMode(SystemUiMode.immersiveSticky);
-    SystemChrome.setPreferredOrientations([
-      DeviceOrientation.landscapeLeft,
-      DeviceOrientation.landscapeRight,
-      DeviceOrientation.portraitUp,
-    ]);
+    _applyOrientation();
     _scheduleControlsHide();
   }
 
+  void _applyOrientation() {
+    if (_isLandscape) {
+      SystemChrome.setPreferredOrientations([
+        DeviceOrientation.landscapeLeft,
+        DeviceOrientation.landscapeRight,
+      ]);
+    } else {
+      SystemChrome.setPreferredOrientations([
+        DeviceOrientation.portraitUp,
+        DeviceOrientation.portraitDown,
+      ]);
+    }
+  }
+
+  void _toggleOrientation() {
+    setState(() => _isLandscape = !_isLandscape);
+    _applyOrientation();
+    _showControls();
+  }
+
   @override
   void dispose() {
     _hideTimer?.cancel();
@@ -814,13 +832,28 @@ class _FullscreenVideoPageState extends State<_FullscreenVideoPage> {
                     top: 12,
                     right: 12,
                     child: SafeArea(
-                      child: IconButton.filledTonal(
-                        tooltip: 'Close fullscreen',
-                        onPressed: () => Navigator.of(
-                          context,
-                          rootNavigator: true,
-                        ).pop(_snapshot()),
-                        icon: const Icon(Icons.close_rounded),
+                      child: Row(
+                        mainAxisSize: MainAxisSize.min,
+                        children: [
+                          IconButton.filledTonal(
+                            tooltip: _isLandscape
+                                ? 'Портретная ориентация'
+                                : 'Альбомная ориентация',
+                            onPressed: _toggleOrientation,
+                            icon: Icon(_isLandscape
+                                ? Icons.screen_lock_portrait_rounded
+                                : Icons.screen_lock_landscape_rounded),
+                          ),
+                          const SizedBox(width: 8),
+                          IconButton.filledTonal(
+                            tooltip: 'Close fullscreen',
+                            onPressed: () => Navigator.of(
+                              context,
+                              rootNavigator: true,
+                            ).pop(_snapshot()),
+                            icon: const Icon(Icons.close_rounded),
+                          ),
+                        ],
                       ),
                     ),
                   ),
diff --git a/pubspec.yaml b/pubspec.yaml
index 4302b95..7aad424 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,7 +1,7 @@
 name: gel_rule_app
 description: Local backend/core layer for a Flutter booru browser app.
 publish_to: "none"
-version: 2.3.4+44
+version: 2.3.5+45
 
 environment:
   sdk: ">=3.3.0 <4.0.0"