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Changelog - Unicode & CJK Support Update
🖥️ Local Server (v6.9.1)
Fixed Filename Sanitization:

Disabled the restrictfilenames option in yt-dlp configuration.

Changed all sanitize_filename function calls from restricted=True to restricted=False.

Removed the --restrict-filenames flag from Live Recording (subprocess) commands.

Impact: The server now correctly saves files with Chinese, Japanese, Korean (CJK), Arabic, and accented characters instead of replacing them with underscores (e.g., fixed ____.mp4 → Vtuber_夏色まつり.mp4).

📜 Userscript (v3.12.6)
Updated cleanFileName() Logic:

Replaced the old "Whitelist" Regex (which only allowed A-Z/0-9) with a "Blacklist" Regex.

Now only removes characters explicitly forbidden by the Windows filesystem (< > : " / \ | ? *), preserving all global languages.

Notification System:

Updated the UI Banner to announce Server v6.9.1.

Reset the banner memory key to yt_dl_seen_v691_banner, forcing the notification to appear for all users (even those who closed the previous one).

Here is the **Changelog** in English, focusing on the new features you added:

### **v3.12.5 - Major Update**

* **🆕 Quality Selector:** Added a dropdown menu to select your preferred video resolution (Best/4K/8K, 1080p, 720p, 480p).
* **🔴 Live Recording:** Added a **"Rec Clip"** button to record livestreams or specific video segments directly to your local disk.
* **📸 Frame Capture:** Added a **"Frame"** button (and `Alt+S` shortcut) to take high-quality screenshots from the video player.
* **⚠️ Requirement:** These new features require the **Universal Server v6.9** to function properly.

**v3.12.3**
* General improvements and bug fixes.

🇺🇸 English (Changelog v3.12.1)
🔧 FIX: Resolved issue where YouTube Shorts thumbnails were not appearing (Updated URL parsing logic).

🆕 NEW: Added a direct "Panel" button in the UI footer to open the server dashboard easily.

⚠️ IMPROVED: Added a clear "Server Offline? Start the App!" error message when the connection fails.

✨ UI: The panel is now fully resizable and draggable with smart positioning logic.

🌐 SYSTEM: Code cleanup and robust language fallback system (prevents "undefined" texts on unsupported languages).

🇧🇷 Português (Histórico de Mudanças v3.12.1)
🔧 CORREÇÃO: Resolvido o problema onde as miniaturas dos Shorts não apareciam (Lógica de URL atualizada).

🆕 NOVO: Adicionado botão "Painel" na interface para abrir o dashboard do servidor rapidamente.

⚠️ MELHORIA: Adicionada mensagem de erro clara "Servidor Offline? Inicie o App!" quando a conexão falha.

✨ INTERFACE: O painel agora é redimensionável e arrastável (com memória de posição inteligente).

🌐 SISTEMA: Limpeza de código e sistema de fallback de idioma robusto (evita textos "undefined").

🇨🇳 Chinese (更新日志 v3.12.1)
🔧 修复: 解决了 YouTube Shorts (短视频) 缩略图无法显示的问题（更新了 URL 解析逻辑）。

🆕 新增: 在界面底部添加了 “面板” (Panel) 按钮，可快速打开服务器仪表板。

⚠️ 改进: 连接失败时添加了清晰的 “服务器离线？启动应用程序！” 错误提示。

✨ 界面: 面板现在支持 调整大小 和 拖动（具有智能定位记忆功能）。

🌐 系统: 代码清理和强大的语言回退系统（防止在不支持的语言上出现 "undefined" 文本）。

### 🇺🇸 English (Changelog)

**v3.12.0**
* **🆕 UNIVERSAL SERVER (v6):** Added support for the new Universal Server engine.
* **🖼️ IMAGE SUPPORT:** Now you can download high-quality thumbnails! (Requires **Server v6**).
* **⚡ SMART SHORTCUTS:** Added "Right-Click" shortcuts to download directly from thumbnails without opening the video:
* `SHIFT + Right Click` = Video
* `ALT + Right Click` = Audio
* `CTRL + Right Click` = Image
* **📦 BATCH DOWNLOAD:** New tab to paste a list of links and download them all at once.
* **🧠 SMART GRABBER:** Logic improved to detect media from sidebar/home thumbnails.
* **💅 UI IMPROVEMENTS:** Added visual shortcut hints on the Home tab, a "Pro Tip" box, and a completely redesigned **Help** tab with installation steps.


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### 🇧🇷 Português (Histórico de Mudanças)

**v3.12.0**
* **🆕 SERVIDOR UNIVERSAL (v6):** Adicionado suporte ao novo motor do Servidor Universal.
* **🖼️ SUPORTE A IMAGENS:** Agora você pode baixar thumbnails em alta qualidade! (Requer **Servidor v6**).
* **⚡ ATALHOS INTELIGENTES:** Adicionados atalhos de "Clique Direito" para baixar direto das miniaturas sem abrir o vídeo:
* `SHIFT + Clique Direito` = Vídeo
* `ALT + Clique Direito` = Áudio
* `CTRL + Clique Direito` = Imagem
* **📦 DOWNLOAD EM LOTE (BATCH):** Nova aba para colar uma lista de links e baixar tudo de uma vez.
* **🧠 SMART GRABBER:** Lógica melhorada para detectar mídia nas miniaturas da Home e Barra Lateral.
* **💅 MELHORIAS NA UI:** Adicionadas dicas visuais dos atalhos na aba Home, caixa "Dica Pro" e uma aba **Ajuda** totalmente redesenhada com passos de instalação.

v3.11.1 - Major Usability Update

🆕 New "Help & Install" Screen: Added a dedicated help section accessible via the new [?] button in the panel header or via the Tampermonkey menu.

📖 Step-by-Step Guide: Clear instructions on how to set up the required Local Server (1. Download > 2. Open > 3. Start).

⬇️ Direct Download: Added a direct download button for the YT_Downloader.exe server app inside the interface.

🎨 UI Improvements:

Increased visibility of inactive tabs (changed from dark gray to light gray).

Added a "Back to Panel" button in the help screen for easier navigation.

Fixed warning icons ensuring they load correctly.

🌍 Translations: Added localization for the new help section in all supported languages (PT, ES, EN, RU, FR, DE, IT, ZH, JA).

v3.10.1 - The "Native Look" Update & Login Fix Guide

Changelog:

Native Integration: Replaced floating buttons with two large, native-style buttons located directly below the video player (next to Share/Download).

Video Button (Blue): Instant download of the best video quality.

Audio Button (Purple): Instant download of MP3 audio.

UI Fixes: Improved CSS to match YouTube's rounded design perfectly.