diff --git a/main.py b/main.py
index 1066468..2ac35d5 100644
--- a/main.py
+++ b/main.py
@@ -29,7 +29,34 @@ def collect_daily_notes():
         return []
 
 def main():
-    collect_daily_notes()
+    daily_notes_list = collect_daily_notes()
+    if not daily_notes_list:
+        logging.info("No daily notes found or an error occurred. Skipping update of 'All Daily Notes.md'.")
+        return
+
+    all_daily_notes_path = os.path.join(NOTES_DIR, 'All Daily Notes.md')
+    
+    new_content = "\n\n".join(daily_notes_list)
+
+    try:
+        with open(all_daily_notes_path, 'r') as f:
+            existing_content = f.read()
+    except FileNotFoundError:
+        existing_content = ""
+        logging.info(f"File not found: {all_daily_notes_path}. A new file will be created.")
+    except OSError as e:
+        logging.error(f"Error reading file {all_daily_notes_path}: {e}")
+        return
+
+    if new_content.strip() != existing_content.strip():
+        try:
+            with open(all_daily_notes_path, 'w') as f:
+                f.write(new_content)
+            logging.info(f"Updated {all_daily_notes_path}")
+        except OSError as e:
+            logging.error(f"Error writing to file {all_daily_notes_path}: {e}")
+    else:
+        logging.info(f"No changes detected for {all_daily_notes_path}. File not updated.")
 
 if __name__ == '__main__':
     main()