- Universal Viewer .ini File Preview Support: Added native plain text preview support for `.ini` configuration files in the Universal Viewer (F3) and Quick View (`Ctrl+Q` / `⌘Q`), enabling instant inspection of configuration settings without opening external editors - App Store Packaging & Frameworks Signing: Automated compilation and injection of `libATBLicenseKit.dylib` into `Contents/Frameworks/` for macOS Store and DMG release builds; added strict code-signing and notarization for dynamic libraries, enhanced runtime bundle discovery, and hardened universal binary merging - Interactive Tutorial Engine Stability: Resolved step navigation timeouts in the favorite hotlist curriculum, properly cleared pending transition flags upon step switching, and disconnected dangling event signals to eliminate signal leaks during onboarding - StoreKit 2 Licensing & Trial System: Built-in Swift StoreKit 2 licensing and lifetime purchase system for the Mac App Store, featuring local calendar-day trial tracking, offline receipt validation, and purchase restoration; includes a toolbar license badge, paywall dialog, and universal binary support (macOS 12+, Apple Silicon & Intel) - Embedded Shell Command Execution: Bottom command line bar now directly executes arbitrary shell commands in system terminal (Terminal / iTerm2); supports Tab path completion, and pure `cd` commands navigate active panels directly - Directory Sync Overhaul & Inline Word Diff: Redesigned Directory Synchronization (`cm_SyncDirs`) with a classic 7-column grid and double-click Diff integration, eliminating asymmetric sync risks; Diff Viewer adds fine-grained inline word/character highlighting and First/Last diff navigation - macOS Native Storage Alignment & VFS Hardening: Drive capacity and free space display aligned with macOS System Settings "Storage" specs; Network VFS (SFTP/FTP/Samba/WebDAV) strengthened with liveness checks, auto-reconnect, and FTPS; updated system tray to a minimalist monochrome template icon

1. Support X86-64 and Arm universal pkg 2. Smart File Associations & External Apps: Introduced standalone file associations management (extassoc.xml) allowing custom actions, external viewers, and editors per extension; integrated smart fallback to macOS LaunchServices and a dedicated "Open With" dialog 3. Large File Transfer & 64-bit Overflow Protection: Completely eliminated 32-bit integer overflow issues in progress signals and text panel sliders, ensuring seamless transfers and accurate progress reporting for files larger than 2GB across mounted volumes and network shares 4. Unified Viewer ESC Navigation Hierarchy: Standardized ESC key handling across all preview panels with tiered dismissals (search bar → active filter → fullscreen → close window), eliminating shortcut collisions and optimizing rapid file switching 5. Real-Time Dynamic Localization: Bottom function key bar (F3–F8) now instantly retranslates upon language changes in Preferences without requiring an application restart 6. Newbie Interactive Tutorial System: Added a 25-step interactive onboarding curriculum for newcomers with a first-run welcome prompt (accessible anytime via "Help → Interactive Tutorial"); features a spotlight cutout overlay, adaptive floating cards, and dual menu-path + native shortcut prompts

1. Universal File Viewer & Office Preview Suite: Added native preview engines for Excel spreadsheets (with lazy virtual loading), Word documents (with pagination and embedded image rendering), and PowerPoint presentations (slide card view); added previews for SQLite databases, Markdown (with TOC), Jupyter Notebooks, fonts, archives, audio, and EML; implemented instant streaming infinite scroll for large text files 2. Side-by-Side File Diff Viewer: Built-in vimdiff-style two-way comparison tool with character-level diff highlighting, hunk copying, live editing, undo/redo, and encoding preservation 3. Advanced File Search Engine: Rewritten search subsystem with default fuzzy substring matching, regex support, and a "Feed to Listbox" tab mode; batched UI throttling eliminates UI freezes on massive search results 4. File Operations & UI Hardening: Fixed duplicate overwrite prompts during cross-device moves and transfer queue deadlocks; added file creation timestamps in properties dialog; enabled vertical middle toolbar by default and refined active pane visual indicators 5. Rubberband Drag Selection & Interaction: Added mouse rubberband drag selection in both File Table View and Thumbnail View, along with clicking empty space to deselect all Global Window Hotkey & Shortcut Input: Added a configurable global hotkey to show/hide the application window; fixed 4-key modifier combinations input in hotkey settings 6. macOS Dock & Tray Restore Fix: Resolved an issue where clicking the Dock icon while minimized to the tray could fail to restore the main window or show a blank frame Core Hardening & Stability Improvements: Fixed potential lifecycle segfaults, strengthened VFS backends, and stabilized thread teardown and test suites 7. Comprehensive macOS UI/UX Overhaul: Grounded in Apple HIG with refined Light/Dark palettes, Finder-style pane highlight contrast, native card tooltips, and smooth segmented control animations 8. Vector Icon Engine & Modern Widgets: Added an SF Symbols-inspired resolution-independent vector icon generator and modernized drive bars, breadcrumbs, and combo boxes Interaction & Layout Polish: Multi-rename redesigned with a 2-column layout and real-time name collision detection; Thumbnail View supports Cmd + Wheel dynamic zooming; unified empty state views added