MacBook Trackpad Horizontal Swipe Gestures for History Navigation: Added native support for two-finger horizontal trackpad swipe gestures to navigate Back and Forward through directory history, featuring intelligent debounce and threshold checks for a seamless macOS-native feel (Fixes #185, #195) Total Commander Tab Locking & Adjacent Tab Creation: Fully implemented classic Total Commander tab locking with "Lock this tab" and "Locked, but directory changes allowed" modes, indicating locked tabs with an asterisk * in the tab title (Fixes #180, #189); newly opened tabs now appear immediately adjacent to the active tab for improved multi-folder workflow efficiency (Fixes #177, #191) Arbitrary Character Boundary Pinyin Match & Filter-Only Mode: Upgraded QuickSearch pinyin engine to match Chinese pinyin initials and full pinyin at any character boundary rather than prefix-only (Fixes #182, #194); introduced an optional "Only show matching files/directories" filter mode, allowing users to toggle between live cursor navigation and dedicated filtered listing (Fixes #178, #192) Show Menu Expansion & Ergonomic Show Occupied Space Shortcut: Added "Show All Files" (Cmd+F10) and "Show Custom Files / Extensions" (Cmd+F11) actions to the Show menu and panel header context menu (Fixes #181, #193); updated the default shortcut for "Show Occupied Space" to the ergonomic and conflict-free Alt+Shift+Return (Fixes #179, #196) App Store Sandbox Cloud Drives & Terminal Hardening: Refined detection and security-scoped bookmark workflows for OneDrive and other cloud drives in macOS App Store sandboxes (Fixes #187, #188); pre-filled shell commands in Terminal without auto-execution in sandboxed builds to prevent unintended commands (Fixes #183, #190); eliminated duplicate Terminal windows and zsh touch session errors; restored the packaged application Dock icon to resource/AppIcon.icns with robust standard fallback icons (Fixes #184, #186)

- Text Editor Toolbar Modernization with Icon+Tooltip Layout: Completely overhauled the text editor (F4) toolbar, replacing plain text buttons with sleek, compact vector icons paired with descriptive tooltips (Fixes #105, #106); tooltips clearly indicate action names alongside keyboard shortcuts (Save, Undo, Redo, Find, Replace, Encoding Switch), improving layout compactness and editing productivity - Directory History & Tab Bar Context Menu Shortcut Visibility: Added explicit `Alt+Left` and `Alt+Right` keyboard shortcut hints to the "Back" and "Forward" history navigation button tooltips with full 31-language localization; displayed corresponding global shortcuts next to common actions in the path tab bar context menu (New Tab, Close Tab, Close Other Tabs, Duplicate Tab), reinforcing keyboard-first navigation workflows - Interpreter Finalization Safety & Clean Exit Crash Prevention: Introduced safety guards during Python interpreter shutdown (`sys.is_finalizing()`), safely bypassing QThread cleanup, object resurrection, and event filter removal during finalization; completely eliminated occasional exit crashes caused by `SIGABRT` or premature destruction of underlying C++ Qt objects - Privileged Cleanup Process Enumeration Hardening: Refined process scanning and application bundle inspection logic to prevent a single unreadable or non-standard bundle from spoiling whole-system detection or marking idle applications as unknown; increased process enumeration and plist parsing timeouts to ensure resilient cleanup on slow or heavily loaded storage

App Store Sandbox Dual-Mode Running Apps & Cleaner Enhancements: Implemented automatic dual-mode fallback in the System Status panel to display running GUI applications via NSWorkspace in restricted App Store sandboxes, complete with native icons and foreground indicators (Fixes #102, #104); resolved sandbox container traversal limitations for browser caches and unknown size accounting in System Cleaner, accurately accumulating known sizes and reporting cleanup results Finder Color Tag Canonicalization & 31-Language Deep Localization: Introduced tag canonicalization and localization helpers (get_canonical_tag_name and localize_tag_name) to cleanly strip internal index suffixes; compiled standardized localized translations for all 7 macOS color tags (Red, Orange, Yellow, Green, Blue, Purple, Gray) across all 31 supported languages, dynamically surfacing localized tag names in file panel column tooltips Panel Shift+Click Deselection & Search Dialog Usability Polish: Added support for Shift+Click to batch-deselect files in the file table, enabling intuitive range unmarking without losing remaining selections ; automatically focuses the file pattern input by default when opening the Search dialog (Fixes #94, #98); prevented accidental search cancellation caused by Enter key double-triggering tightened visual spacing between the drive selector and tabs

Advanced Recent File & Folder Changes Tool: Built a dedicated "Recent Changes" system tool powered by native bridge commands, supporting flexible time ranges (1 hour, 24 hours, 7 days, 30 days) and minimum size filters (>1MB, >10MB, >100MB, >1GB); integrates macOS Spotlight metadata to seed candidates for ultra-fast deep scans; search results support instant text filtering, double-click/contextual navigation to Finder or panel paths, and batch moving to Trash Collision-Safe Paste Auto-Rename & Cloud Storage Reliability: Automatically appends incremental numeric suffixes (e.g. name (1).ext) when pasted files or directories collide with existing items, preventing accidental overwrites (Fixes #92); restored missing Google Drive discovery data across virtual filesystems (Fixes #87, #91); bundled essential Dropbox cloud dependencies in macOS application builds (Fixes #90) Comprehensive 31-Language Audit & Terminology Standardization: Rigorously audited and polished translations across all 31 supported languages, resolving PO line-wrap escaping issues and syntax errors while eliminating machine-translation anomalies (Fixes #88, #93); standardized professional file manager terminology and refreshed compiled binary .mo catalogs macOS Native UX Polish & Visual Refinement: Standardized confirmation dialog buttons to macOS conventions ("Yes/Confirm" preceding "No/Cancel"); cleaned up redundant hairline borders around path tabs for a refined capsule appearance; fixed macOS Dock icon fuzziness caused by Qt downsampling, improved table header column divider contrast, and resolved a path checker thread retirement race condition

- File Panel Tabs Overhaul with macOS Native Card/Capsule Design: Completely redesigned path tab bars into rounded card capsules with slot backgrounds and hairline dividers, fixing uneven borders and clipping; established active/inactive focus hierarchy (vibrant blue indicator for active panel, neutral gray for inactive); introduced semantic vector icons (locked padlocks, Home, Root, Search results); standardized 28px height aligned pixel-perfectly with drive selectors (Fixes #78, #79) - Smart Encoding Auto-Detection in Viewer & Editor: Built a dedicated encoding detection engine (`encoding_utils`) combining BOM inspection, chardet analysis, and common codepage heuristics; completely resolved garbled text when opening GBK, GB18030, Big5, Shift-JIS, and EUC-KR files in Universal Viewer (F3) and Editor (F4) - Lightweight Architecture & Dramatic Package Size Reduction: Completely removed the heavy `opencv-python-headless` dependency (shaving 70MB+), reimplementing image processing and watermark removal with Pillow and Apple CoreImage; pruned unused transcoding libraries (libtesseract, libx265), significantly reducing DMG/PKG installer sizes and runtime memory footprint - Core Safety Audit & Broad Stability Hardening: Eliminated the risk of source file truncation when copying to identical physical files across paths or VFS layers; secured text editor symlink preservation, read-only permissions, and multibyte/Emoji replacement synchronization; hardened command-line `cd` path escaping, multi-rename conflict resolution, checksum cancellation responsiveness, 7z extraction, and image scanline alignment crashes

- Default Theme Refinement & Modern UI Architecture: Introduced semantic appearance tokens and contrast rules with seamless light and dark mode adaptation; restored colorful icons, classic blue panel accents, and unified high-contrast active, marked, and translucent hover states; expanded default toolbar with native overflow while preserving custom toolbar configurations; slightly widened drive selector with green disk capacity bars and clear unknown capacity handling; hidden semantic command bar by default for a cleaner look, kept bookmark popups within panels, and unified footer shortcut badges - Archive Encoding Auto-Detection & ZIP Panel Copying: Completely resolved garbled non-UTF-8 archive filenames (GBK, GB18030, CP936, Shift-JIS) during compression and extraction (Fixes #74); integrated smart charset detection across ZIP browsing and extraction; added full support for copying selected entries directly from ZIP virtual panels - Directory Sync Dialog Constraint & Robustness: Added sensible maximum width limits to the Synchronize Directories dialog, preventing tables from infinitely expanding horizontally during large comparison tasks (Fixes #76); strengthened comparison logic and test stability across ARM64 and x86_64 runners - Accessibility (a11y) Upgrades & Contextual Terminal Action: Assigned accessible names to all toolbar actions and exposed full keyboard navigation; added a "System Terminal" action to file panel context menus to open terminal sessions directly in the active folder; updated all 31 language catalogs for refined theme controls and disk capacity summaries

- File Panel Interaction Overhaul & Visual Hierarchy: Refactored row item delegates to render subtle translucent hover highlights with rounded pill borders, clearly separating mouse hover states from active file selections (Fixes #72); eliminated right-click delays and ensured right-clicking preserves current selections (Fixes #60); added "New File" (Shift+F4) and "New Folder" (F7) actions directly to the file panel context menu with full 31-language i18n support (Fixes #61, #70); automatically resets file selections upon changing directories to prevent accidental cross-folder file operations (Fixes #67) - Command Line Terminal Execution & Seamless Path Navigation: Pressing Enter on any external shell command in the bottom command line automatically launches the default system terminal (Terminal.app / iTerm2) and executes it in the current panel directory (Fixes #63); entering directory paths or `cd` commands navigates directly with robust escaping for spaces and special characters - Deep Memory Governance & System Status Ring Buffers: Enforced `WA_DeleteOnClose` and deterministic destruction across Universal Viewer (F3), Editor (F4), and all modal dialogs to eliminate memory accumulation across repeated lifecycles; migrated i18n dispatchers to `weakref.WeakMethod`, broke `DiskTreeNode` reference cycles, and introduced a QIcon LRU cache; upgraded System Status Panel and AtbSysBridge with 120-sample fixed ring buffers and in-place widget reuse to eliminate memory and stylesheet churn during high-frequency telemetry polling - Toolbar Configuration Fix & Sandbox Guidance Alignment: Resolved an issue where newly added buttons in the middle toolbar could be overwritten and lost upon saving settings (Fixes #62); synchronized sandbox Full Disk Access (FDA) status bar indicators with Configuration menu actions

- Native Google Drive & Dropbox Cloud VFS Integration with OAuth 2.0: Introduced native virtual filesystem support for Google Drive (`gdrive://`) and Dropbox (`dropbox://`); added dedicated cloud storage profiles in Connection Manager with support for custom Client ID / Client Secret credentials and one-click browser-based OAuth 2.0 authorization; optimized direct stream copy fast-paths, quota TTL caching, and lazy directory listings with automatic connection profile saving - Consolidated Keychain Security & Encrypted Credential Import/Export: Cleaned up Keychain service namespaces to eliminate repetitive startup authorization dialogs and ensure robust credential and license persistence; introduced encrypted export and import for saved connection credentials protected by user-defined passwords for secure cross-device migration, backed by full 31-language i18n - Nuitka Runtime Hardening & Zip Streaming Improvements: Resolved edge-case launch crashes in standalone Nuitka builds and extended CI smoke test coverage across all packaged artifacts; refined the archive system's Zip streaming engine and fixed potential file panel wiping during cloud cache invalidation - Sorting Concurrency Fix & Comprehensive Cloud Setup Guide: Resolved thread race conditions in folder-first and natural-case sorting tests (Fixes #58); expanded Chapter 6 of the User Guide with step-by-step instructions for Google Drive and Dropbox API setup, OAuth consent screen branding, and security guidance - Sandbox Permission Flow Overhaul & Unified Authorization Workflow: Restored and unified user Home (`~`) and `/Volumes` authorization into a streamlined single-button "Grant Permissions" onboarding workflow; introduced intelligent path promotion that automatically promotes subfolder access requests to the user home or volume root and persists security-scoped bookmarks, completely eliminating repetitive permission prompts under macOS App Store sandbox - Dialog Standard Buttons i18n & 31-Language Catalog Deepening: Implemented `_GettextQtTranslator` to dynamically intercept and translate Qt standard buttons (Yes, No, OK, Cancel, Save, Discard, Apply, Close, Open, Reset) via gettext with automatic shortcut accelerator stripping (`&Yes` -> `Yes`); enhanced options pages (Toolbar, Hotkeys, Favorite Tabs, Auto Refresh), Connection Manager, and Queue Viewer with full dynamic UI retranslation (`retranslate_ui`); updated and compiled `.po`/`.mo` catalogs across all 31 supported languages, backed by new automated tests

- Packer Overhaul, Separate Archiving & Streaming Progress: Added "Create separate archive for each selected file/folder" in ArchiveDialog to batch-compress multiple items individually; implemented streaming progress tracking for large files (≥1MB) across Zip, Tar, and 7z drivers; introduced thread-safe collision handling (Overwrite, Skip, Auto-Rename, Cancel), enhanced batch error tolerance for damaged items, robustly preserved symlinks, and synchronized 31-language translations - System Tray Geometry & macOS Global Hotkey Hardening: Perfectly restored window position, dimensions, and maximized state when unhiding from the system tray; prevented tray context menus from inadvertently bringing the main window to foreground; revamped the macOS global wake/hide hotkey by normalizing Option dead-key characters via virtual keycodes and caching Darwin key contexts on the main thread to eliminate macOS Sequoia background assertions; added dynamic minimize-to-tray toggle in Preferences - Drive Selector & Disk Capacity Tooltip Enhancements: Upgraded the drive selector bar with native volume labels and hardware disk icons; enriched tooltip previews with mount points, filesystem types, free disk space, and total capacity statistics - Nuitka Build Integrity & Automated Bundle Smoke Tests: Added `--include-package=atbcmder` across all Nuitka build scripts to eliminate runtime `ModuleNotFoundError` caused by lazy-loaded UI dialogs; introduced headless `--smoke-test` verification integrated into DMG, Mac App Store PKG, and CI release workflows to guarantee rock-solid application bundles out of the box - Multilingual Official Landing Page Launch: Launched the official modern product showcase website with a smart client-side language router (supporting English, Chinese, Japanese, Korean, and more) highlighting dual-pane productivity and native macOS craftsmanship

- macOS Finder Native Color Tags & Live-Sync: Deeply integrated macOS Foundation APIs (NSURLTagNamesKey) and NSWorkspace to display native color dot tags in file panels; supports sorting by Finder native color order with 2-second viewport polling for real-time tag synchronization; includes customizable column visibility in Preferences and fully localized color labels - Directory Synchronization Overhaul (cm_SyncDirs): Comprehensively re-engineered directory synchronization to eliminate UI state deadlocks and added a dedicated SyncErrorsDialog; introduced Swap Dirs, bidirectional deletion (OP_DELETE_BOTH), pipe | wildcard exclusion syntax, real-time selection statistics, CSV export, selection submenus, and Reveal in Finder with persistent window geometry and column widths - Apple HIG Frosted Glass Interactive Tooltips: Built a centralized tooltip architecture featuring 80% translucent frosted glass cards matching native macOS Light and Dark appearances; unified tooltips across toolbars, splitters, breadcrumbs, Fx function keys, and dialogs with native macOS shortcut badges while suppressing duplicate Qt tooltips - Native macOS Shortcut Conventions & Conflict Auto-Deduplication: Standardized shortcut descriptions and glyphs to match native macOS conventions, strictly synchronizing menu items and toolbar actions; eliminated historical 1-to-1 shortcut collisions with automatic deduplication across settings dialogs, command registry, and XML storage - 100% 31-Language Translation Coverage & Demo Showcase Expansion: Reached 100% localization coverage and accurate plural forms across all 31 supported languages; enhanced Universal File Viewer (F3) with an "Open in Text Mode" fallback and added hover tooltips for truncated filenames; expanded demo scripts to showcase Quick Filter, Multi-Rename, transparent archive VFS, directory sync, and Tree View

- System Tools >2GB Metric Precision & Uninstaller Enhancements: Fixed 32-bit integer signal overflow and 64-bit precision loss when reporting cleanup byte counts exceeding 2 GB; added application installation date display and sorting in the Application Uninstaller - Mac App Store Sandbox Compliance & Real Home Propagation: Propagated the real user home directory (`real_home`) across the `atbsys` bridge for accurate disk cleaning and remnant detection inside the App Sandbox; hardened elevation, terminal execution, and scripting interfaces for strict App Store review compliance - Preferences Layout Controls & Directory Hotlist Fixes: Added main window layout toggle controls in General Preferences with live `MainWindow` and `ThemeManager` synchronization, and disabled the main toolbar system status capsule by default for a cleaner initial workspace; fixed empty dropdown menus and live language retranslation in Directory Hotlist settings - Localization Terminology & Language Selector Polish: Standardized the Chinese translation of "Directory Hotlist" to "路径收藏夹" across all UI surfaces and enhanced the Preferences language selector with dual native-script and localized display names - Keychain ACL Preservation & Stream Copy Reliability: Preserved existing macOS Keychain access control lists (ACLs) and eliminated redundant startup writes to prevent repeated Keychain authorization prompts; ensured deterministic `operation_completed` signal emission before thread completion in `StreamCopyWorker` - Runtime Settings Immediate Application (Hot Reload): All configuration settings across 7 major options pages (File Operations, Editor, Viewer, Quick Search & Filter, Tabs, File Panel Icons, and Sorting) now take effect immediately upon saving without restarting the application; added a configurable `sort_folder_mode` supporting Folders First, Files First, and Mixed sorting - Directory Synchronization Safety & Parity: Comprehensive audit of Directory Synchronization (`cm_SyncDirs`) aligning behavior directly with classic Double Commander; strengthened bidirectional state validation and safety checks to eliminate asymmetric synchronization risks - Smart Tooltips for Truncated Filenames with CJK Precision: Added intelligent hover/selection tooltips that appear exclusively when long filenames are truncated with ellipses, keeping UI clean for fully visible items; integrated high-precision CJK character width calculations to eliminate font metric discrepancies - Dual-Panel Workflow & Interaction Polish: Right-click archive packing and unpacking defaults destination to the peer panel directory with default focus on the Start button; refined delete confirmation dialog button ordering and keyboard default; restored pointer cursors for middle toolbar action buttons - Mac App Store Sandbox Real Home & FDA Hardening: Implemented the `real_home` resolution engine to resolve user home directories and Favorite Hotlists accurately under App Sandbox containers; fixed Full Disk Access (FDA) false alarms and auto-closed prompt dialogs upon authorization; migrated system CPU metrics to Mach host statistics for sandbox compliance

- 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