diff --git a/core/database.php b/core/database.php
index ea3ac36f..f9effb9a 100644
--- a/core/database.php
+++ b/core/database.php
@@ -258,6 +258,20 @@ class Database
         return $res;
     }
 
+
+    /**
+     * Execute an SQL query and return the the first column => the second column as an iterable object.
+     */
+    public function get_pairs_iterable(string $query, array $args = []): Generator
+    {
+        $_start = microtime(true);
+        $stmt = $this->execute($query, $args);
+        $this->count_time("get_pairs_iterable", $_start, $query, $args);
+        foreach ($stmt as $row) {
+            yield $row[0] => $row[1];
+        }
+    }
+
     /**
      * Execute an SQL query and return a single value, or null.
      */
diff --git a/core/extension.php b/core/extension.php
index c65418c4..b544acf0 100644
--- a/core/extension.php
+++ b/core/extension.php
@@ -61,7 +61,7 @@ abstract class Extension
         return 50;
     }
 
-    public static function determine_enabled_extensions()
+    public static function determine_enabled_extensions(): void
     {
         self::$enabled_extensions = [];
         foreach (array_merge(
@@ -138,6 +138,7 @@ abstract class ExtensionInfo
     public $license;
     public $version;
     public $dependencies = [];
+    public $conflicts = [];
     public $visibility;
     public $description;
     public $documentation;
@@ -193,6 +194,13 @@ abstract class ExtensionInfo
         if (!empty($this->db_support) && !in_array($database->get_driver_name(), $this->db_support)) {
             $this->support_info .= "Database not supported. ";
         }
+        if (!empty($this->conflicts)) {
+            $intersects = array_intersect($this->conflicts, Extension::get_enabled_extensions());
+            if (!empty($intersects)) {
+                $this->support_info .= "Conflicts with other extension(s): " . join(", ", $intersects);
+            }
+        }
+
         // Additional checks here as needed
 
         $this->supported = empty($this->support_info);
diff --git a/core/imageboard/misc.php b/core/imageboard/misc.php
index 6e13527d..8bef7bec 100644
--- a/core/imageboard/misc.php
+++ b/core/imageboard/misc.php
@@ -187,3 +187,27 @@ function create_scaled_image(string $inname, string $outname, array $tsize, stri
         true
     ));
 }
+
+function redirect_to_next_image(Image $image): void
+{
+    global $page;
+
+    if (isset($_GET['search'])) {
+        $search_terms = Tag::explode(Tag::decaret($_GET['search']));
+        $query = "search=" . url_escape($_GET['search']);
+    } else {
+        $search_terms = [];
+        $query = null;
+    }
+
+    $target_image = $image->get_next($search_terms);
+
+    if ($target_image == null) {
+        $redirect_target = referer_or(make_link("post/list"), ['post/view']);
+    } else {
+        $redirect_target = make_link("post/view/{$target_image->id}", null, $query);
+    }
+
+    $page->set_mode(PageMode::REDIRECT);
+    $page->set_redirect($redirect_target);
+}
diff --git a/ext/image/config.php b/ext/image/config.php
index e622bef6..80666f24 100644
--- a/ext/image/config.php
+++ b/ext/image/config.php
@@ -23,4 +23,8 @@ abstract class ImageConfig
 
     const COLLISION_MERGE =  'merge';
     const COLLISION_ERROR =  'error';
+
+    const ON_DELETE =        'image_on_delete';
+    const ON_DELETE_NEXT =   'next';
+    const ON_DELETE_LIST =   'list';
 }
diff --git a/ext/image/main.php b/ext/image/main.php
index b3ffa092..d6dbffcb 100644
--- a/ext/image/main.php
+++ b/ext/image/main.php
@@ -15,6 +15,11 @@ class ImageIO extends Extension
         'Merge'=>ImageConfig::COLLISION_MERGE
     ];
 
+    const ON_DELETE_OPTIONS = [
+        'Return to post list'=>ImageConfig::ON_DELETE_LIST,
+        'Go to next image'=>ImageConfig::ON_DELETE_NEXT
+    ];
+
     const EXIF_READ_FUNCTION = "exif_read_data";
 
     const THUMBNAIL_ENGINES = [
@@ -70,14 +75,20 @@ class ImageIO extends Extension
 
     public function onPageRequest(PageRequestEvent $event)
     {
+        global $config;
         if ($event->page_matches("image/delete")) {
             global $page, $user;
             if ($user->can(Permissions::DELETE_IMAGE) && isset($_POST['image_id']) && $user->check_auth_token()) {
                 $image = Image::by_id(int_escape($_POST['image_id']));
                 if ($image) {
                     send_event(new ImageDeletionEvent($image));
-                    $page->set_mode(PageMode::REDIRECT);
-                    $page->set_redirect(referer_or(make_link("post/list"), ['post/view']));
+
+                    if ($config->get_string(ImageConfig::ON_DELETE)===ImageConfig::ON_DELETE_NEXT) {
+                        redirect_to_next_image($image);
+                    } else {
+                        $page->set_mode(PageMode::REDIRECT);
+                        $page->set_redirect(referer_or(make_link("post/list"), ['post/view']));
+                    }
                 }
             }
         } elseif ($event->page_matches("image/replace")) {
@@ -254,6 +265,7 @@ class ImageIO extends Extension
         $sb->add_text_option(ImageConfig::TIP, "Image tooltip", true);
         $sb->add_text_option(ImageConfig::INFO, "Image info", true);
         $sb->add_choice_option(ImageConfig::UPLOAD_COLLISION_HANDLER, self::COLLISION_OPTIONS, "Upload collision handler", true);
+        $sb->add_choice_option(ImageConfig::ON_DELETE, self::ON_DELETE_OPTIONS, "On Delete", true);
         if (function_exists(self::EXIF_READ_FUNCTION)) {
             $sb->add_bool_option(ImageConfig::SHOW_META, "Show metadata", true);
         }
diff --git a/ext/index/main.php b/ext/index/main.php
index 09ba2ac5..50cdd235 100644
--- a/ext/index/main.php
+++ b/ext/index/main.php
@@ -208,7 +208,7 @@ class Index extends Extension
         } elseif (preg_match("/^(phash)[=|:]([0-9a-fA-F]*)$/i", $event->term, $matches)) {
             $phash = strtolower($matches[2]);
             $event->add_querylet(new Querylet('images.phash = :phash', ["phash" => $phash]));
-        } elseif (preg_match("/^(filename|name)[=|:]([a-zA-Z0-9]*)$/i", $event->term, $matches)) {
+        } elseif (preg_match("/^(filename|name)[=|:](.+)$/i", $event->term, $matches)) {
             $filename = strtolower($matches[2]);
             $event->add_querylet(new Querylet("lower(images.filename) LIKE :filename{$this->stpen}", ["filename{$this->stpen}"=>"%$filename%"]));
         } elseif (preg_match("/^(source)[=|:](.*)$/i", $event->term, $matches)) {
diff --git a/ext/media/main.php b/ext/media/main.php
index 74d7f0a7..ec644952 100644
--- a/ext/media/main.php
+++ b/ext/media/main.php
@@ -581,7 +581,7 @@ class Media extends Extension
             $resize_suffix .= "\!";
         }
 
-        $args = "";
+        $args = " -auto-orient ";
         $resize_arg = "-resize";
         if ($minimize) {
             $args .= "-strip ";
@@ -611,8 +611,8 @@ class Media extends Extension
             case Media::RESIZE_TYPE_FIT_BLUR:
                 $blur_size = max(ceil(max($new_width, $new_height) / 25), 5);
                 $args .= "${file_arg} ".
-                    "\( -clone 0 -resize ${new_width}x${new_height}\^ -background ${bg} -flatten -gravity center -fill black -colorize 50% -extent ${new_width}x${new_height} -blur 0x${blur_size} \) ".
-                    "\( -clone 0 -resize ${new_width}x${new_height} \) ".
+                    "\( -clone 0 -auto-orient -resize ${new_width}x${new_height}\^ -background ${bg} -flatten -gravity center -fill black -colorize 50% -extent ${new_width}x${new_height} -blur 0x${blur_size} \) ".
+                    "\( -clone 0 -auto-orient -resize ${new_width}x${new_height} \) ".
                     "-delete 0 -gravity center -compose over -composite";
                 break;
         }
diff --git a/ext/mime/mime_type.php b/ext/mime/mime_type.php
index cd925c39..eec112c9 100644
--- a/ext/mime/mime_type.php
+++ b/ext/mime/mime_type.php
@@ -131,15 +131,17 @@ class MimeType
         if (($fh = @fopen($image_filename, 'rb'))) {
             try {
                 //check if gif is animated (via https://www.php.net/manual/en/function.imagecreatefromgif.php#104473)
+                $chunk = false;
+
                 while (!feof($fh) && $is_anim_gif < 2) {
-                    $chunk = fread($fh, 1024 * 100);
-                    $is_anim_gif += preg_match_all('#\x00\x21\xF9\x04.{4}\x00[\x2C\x21]#s', $chunk, $matches);
+                    $chunk =  ($chunk ? substr($chunk, -20) : "") . fread($fh, 1024 * 100); //read 100kb at a time
+                    $is_anim_gif += preg_match_all('#\x00\x21\xF9\x04.{4}\x00(\x2C|\x21)#s', $chunk, $matches);
                 }
             } finally {
                 @fclose($fh);
             }
         }
-        return ($is_anim_gif == 0);
+        return ($is_anim_gif >=2);
     }