AnyDiff v1.6.0

🌲 Git Commit Graph & History Inspector

• Interactive Visual Commit Graph:
  • Native multi-lane Git commit graph with zero-alloc branch and merge line rendering directly in the history list.
  • Detail popover displaying author metadata, relative and exact timestamps, and a copy button for the full commit SHA (visible on hover).
  • Compact file count badge with tooltip summary.
  • Live watcher integration: commit history automatically reloads when git repository references or HEAD change.
• Fast & Responsive History Search:
  • Debounced search queries with background graph layout offloading to keep the UI at 120 FPS.
  • Lane leak and stair-stepping prevention when rendering filtered search results.
  • Quick dismiss and clear search on Escape key press.
  • Seamless commit diff viewing: eliminated black screen flash when switching between commits by avoiding eager buffer clears.

📁 Virtualized File Tree & Standalone File Editing

• High-Performance File Tree (FilesPanel):
  • Virtualized workspace file tree capable of smoothly navigating large repositories.
  • Added dedicated Files panel support to the flexible 3-panel layout system.
  • Standalone file viewing and direct editing of non-modified workspace files directly from the tree.

🤖 AI Agent & Chat Navigation Enhancements

• Direct Chat-to-Editor File Navigation:
  • Interactive file paths and line anchor links in agent messages jump directly to corresponding editor lines.
  • Robust FileLinkParser supporting custom schemes and markdown anchor formats.
• Live Diff & Tool Call Improvements:
  • Asynchronous live diff calculation with debouncing during agent tool execution.
  • Fallback to parent message rawDiffData for edit/create tool cards with reactive updates.
  • Agent tool call location previews, theme focus accent, and header background alignment.
• Attachments & Session Persistence:
  • Deduplicated macOS screenshot drops and broadened drag-and-drop file type support.
  • Model, mode, and effort configuration persisted across sessions with boolean toggle controls.
  • ACP protocol fixes handling client capabilities duality and pagination in fs/read_text_file.
• Chat Scrolling & Cursor Fixes:
  • Eliminated cursor flickering between I-beam and arrow during scrolling by intercepting tracking areas.
  • Eliminated view hierarchy churn and drag region recalculation during rapid chat scrolling.

🎛️ Editor & Window Polish

• Scroll Anchor Preservation:
  • Preserved scroll anchor position across external file modifications and filesystem watcher reloads.
• Window Layout & Controls:
  • Left sidebar toggle button aligned to the leading edge next to macOS window traffic lights.
  • Restored and reinforced crisp vertical dividers between panels across dynamic window appearance changes.

🧪 Tests & Quality

• Expanded automated test suite to 310 passing unit & integration tests.

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AnyDiff v1.5.1

🖥️ Native Intel (x86_64) Architecture Support

• Dual Architecture Distributions:
  • Added full native release support for Intel Macs (x86_64) alongside Apple Silicon Macs (arm64).
  • Separate, highly optimized release archives (AnyDiff-macOS-arm64.dmg / .zip and AnyDiff-macOS-x86_64.dmg / .zip).
  • Size-optimized builds with dead-code stripping, minimal reflection symbols, and symbol stripping (<2 MB per archive).
• Multi-Architecture Homebrew Cask:
  • Updated vipmax/tap/anydiff formula with automatic architecture detection (arch arm: "arm64", intel: "x86_64").
• One-Line Installer (scripts/install.sh):
  • Automatically identifies host CPU architecture (arm64 vs x86_64) and downloads the matching binary.

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AnyDiff v1.5.0

🧩 Configurable 3-Panel Layout & Docking System

• Flexible Panel Assignment:
  • Introduce PanelLayoutManager allowing arbitrary configuration of Left, Center, and Right slots with Changes, Editor, and Agent panels.
  • Interactive panel headers with quick-switch menus, dock actions, and empty slot placeholder views.
  • Automatic panel content movement preventing duplicate views across slots.
  • Panel configuration persisted in UserDefaults (anydiff_panel_slot_*).
• Enhanced Window & Status Bar Controls:
  • Right panel collapsible toggle with animated transitions and state persistence.
  • Status bar quick panel toggles and visual indicators.
  • Menu bar commands for showing/hiding and switching panel contents.

🛡️ Automated Release Pipeline & Homebrew Integrity

• Zero Checksum-Mismatch Automation:
  • Added scripts/release.sh and just publish <version> for automated, atomic release generation and Homebrew tap synchronization.
  • Protected GitHub Actions CI workflow from clobbering release archive hashes.

🧪 Tests & Quality

• Expanded automated test suite to 259 passing tests with full test coverage for PanelLayoutManager and layout slot transitions.

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AnyDiff v1.4.0

🔀 Side-by-Side (Split Diff) Layout Mode

• Two-Column Virtualized Editor:
  • Full side-by-side split diff viewing mode with independent left (original/deleted) and right (modified/added) column rendering.
  • Dedicated SplitDiffEngine performing line pairing, deletion/addition block alignment, and synthetic spacer row insertions.
  • Independent column text selection, cursor positioning, and clipboard copying.
  • Smooth layout toggling via Cmd + D, custom toolbar button with animated pill transitions, and the View -> Diff Layout menu.
  • State persistence across sessions (DiffLayoutMode in @AppStorage) with cursor and scroll anchor preservation.

⚡ Patience Anchor Myers Diff & Lazy Word Diffs

• Divide-and-Conquer Myers Algorithm:
  • Integrated Patience diff technique via computeMyersDiffWithAnchors: searches for unique matching anchor lines to partition the diff space before running Myers.
  • Drastically reduces diff calculation time and eliminates visual noise on large multi-line refactors.
• Lazy Slice-Based Word Diffing:
  • Intra-line character and word highlighting is now evaluated lazily only for the active visible slice rather than the entire document ahead of time.

💾 Sub-Microsecond Zero-Alloc Disk Sync (FileDiskState)

• Fast POSIX stat() Snapshotting:
  • Direct Darwin stat() query checking nanosecond-precision mtime and file size without intermediate memory allocations or reading file text into memory.
  • Differentiates AnyDiff self-saves from external modifications (e.g., git checkouts or other editors) in ~1 microsecond.
  • Tuned autosave debounce delay to 600 ms for optimal responsiveness during intensive typing.

🎛️ UI & Agent Panel Refinements

• Panel Visibility Persistence & Shortcuts:
  • Persist toggle state for Left (File Tree / Sidebar, Cmd + Ctrl + S) and Right (AI Agent, Cmd + Option + A) panels.
  • Fixed duplicate user message echoes during active ACP streaming sessions.

🧪 Tests & Quality

• Expanded automated test suite to 243 passing unit & integration tests, including tests for SplitDiffEngine, DisplayMapSplit, and split-mode selection navigation.

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📦 Downloads

• DMG Installer: AnyDiff.dmg
• ZIP Archive: AnyDiff-macOS.zip

AnyDiff v1.3.0

🤖 ACP Agent Registry & Virtualized Agent Views

• ACP Registry Integration (ACPRegistryService):
  • Direct integration with the official ACP Agent Registry to browse, discover, install, and manage certified ACP agents.
  • Automatic architecture-aware binary downloader (ACPRegistryBinaryDownloader) with progress reporting and caching.
  • Support for pre-packaged binary agents, local CLI tools, and npx/uvx/docker commands.
• Virtualized Session & Agent Browsing:
  • VirtualizedSavedSessionsListView with smooth 120 FPS virtualization for hundreds of past sessions.
  • Streaming pagination support in AgentSessionCoordinator delivering session items progressively.
  • Instant session resumption, relative timestamps, working directory badging, and search filtering.
  • VirtualizedAgentRegistryListView with category filtering, search, and one-click install/uninstall.
• Redesigned Agent Start Screen:
  • Modernized card layouts with responsive hover interactions, custom command input, and contextual management.
  • Dynamic brand icons and accent colors matching the selected agent preset across toolbar and panels.

🧪 Tests & Quality

• Expanded automated test suite to 213 passing unit & integration tests including registry parsing, caching, and downloading tests.

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📦 Downloads

• DMG Installer: AnyDiff.dmg
• ZIP Archive: AnyDiff-macOS.zip

AnyDiff v1.2.0

🔍 Full-Text Project Search & Streaming MultiBuffer

• High-Performance Search Engine (ProjectSearchEngine):
  • Full-text search across entire repository with regex (.*), match whole word (\b), case sensitivity (Aa), and glob include/exclude filters.
  • Automatic filtering of binary files (null byte scan) and files over size threshold.
  • Multi-encoding fallback support (UTF-8, Latin-1 / ISO-8859).
• Streaming Delivery & Context Clustering:
  • Progressive batch streaming delivering initial search matches immediately without waiting for full directory scan.
  • Intelligent context clustering with configurable padding lines merging nearby matches into single excerpts.
  • $O(1)$ lazy MultiBuffer slicing and in-memory match recalculation during live typing.
• Native Search Bar UI & Navigation:
  • AppKit/SwiftUI ProjectSearchBarView with keyboard navigation: Cmd + F (find in project), Cmd + Shift + F (find with prefilled selection), Cmd + G (next match), Cmd + Shift + G (previous match), Esc (dismiss).
  • Search hit counter, active match pulsing, and instant match jump navigation.
  • Integrated into the main macOS application menu.

🌐 Unicode & Internationalization

• Full international path, Cyrillic, and multi-scalar emoji selection support across virtualized editor.

🧪 Tests & Quality

• Expanded automated test suite to 208 passing unit & integration tests.
• Swift 6 strict concurrency modernization.

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📦 Downloads

• DMG Installer: AnyDiff.dmg
• ZIP Archive: AnyDiff-macOS.zip

AnyDiff v1.1.1

🌐 Full Unicode, Emoji & Multi-Language Support

• Pixel-Perfect Selection & Caret Alignment:
  • Implemented exact bidirectional mapping between Swift Character grapheme clusters and CoreText UTF-16 code units.
  • Double-clicking words and dragging selections now highlight the exact glyph boundaries on lines containing emojis, Cyrillic, CJK (Chinese, Japanese, Korean), Arabic RTL, Hindi, and mathematical symbols.
  • Retained an $O(1)$ zero-allocation fast-path for standard ASCII lines (utf8.count == count).

📁 International Git Path & Octal Unescaping

• Native Support for Quoted & Octal-Escaped Git Paths:
  • GitDiffParser and StreamingGitDiffParser now unescape C-style octal byte sequences (\320\237...) and quoted paths generated by Git for non-ASCII or spaced filenames.
  • Correctly parses file headers, ---/+++, renames (rename from/rename to), and untracked file discovery (git ls-files) with Russian, Chinese, Japanese, and emoji filenames.
  • Fully optimized for streaming with zero intermediate string allocations.

🛰️ Atomic WordDiff for Complex Emojis

• Grapheme-Aware Word Tokenization:
  • WordDiffEngine tokenizes atomic Character grapheme clusters rather than isolated Unicode scalars.
  • Complex multi-scalar emojis (ZWJ sequences 👨‍👩‍👧‍👦, flags 🇷🇺, and variant selectors 🛰️) stay unified as single tokens with exact UTF-16 code unit ranges.

💬 Agent Chat Selection & Concurrency Improvements

• Unicode-Safe Chat Interactions:
  • Selection ranges and word boundary expansions in AgentChatScrollView now respect Character boundaries, preventing surrogate pair splits.
  • Corrected NSLayoutManager glyph measurement using utf16.count for message end-bounds.
• Swift 6 Concurrency & CI Modernization:
  • Dispatched file system change events to @MainActor in MainWindowView for thread safety.
  • Cleaned up CoreText import attributes and updated GitHub Actions workflows to actions/checkout@v5 (Node.js 24).
• File Icons:
  • Separated plain text (.txt / doc.text.fill) from Markdown (.md / [M↓]).

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📦 Downloads

• DMG Installer: AnyDiff.dmg
• ZIP Archive: AnyDiff-macOS.zip

AnyDiff v1.1.0

🤖 Embedded AI Agent (ACP Protocol)

• Agent Client Protocol (JSON-RPC 2.0):
  • Native embedded side panel (Cmd + Option + A) supporting full agent lifecycle over stdio JSON-RPC.
  • Multi-provider presets: OpenAI / Codex, Anthropic / Claude Code, Google Gemini / Antigravity CLI, and Custom ACP Agent commands.
  • Offline Mock Mode for rapid UI iteration and testing without external processes.
• Multimodal Image Attachments & Zoom Preview:
  • Drag-and-drop or clipboard paste (Cmd + V) of screenshots directly into prompts.
  • Live attachment thumbnails and full-screen zoomable modal view.
• Interactive Tool Call & Diff Jumps:
  • Real-time expandable tool call cards for file reads, directory listings, and bash commands.
  • Edited Files Card: live tracking of files modified by the agent with instant jumps to specific file diffs in the editor.
• Reasoning & State Management:
  • Streaming thinking thoughts and customizable reasoning effort levels (Low / Medium / High).
  • Context & token usage gauge with live capacity tracking.
  • Saved chat session history drawer per workspace with thread switching, renaming, and persistence.
  • Granular client-side permissions for disk writes and terminal command executions.

🎨 Rich Vector File Icons (Devicon SVGs)

• 30+ Devicon Brand Vector Icons:
  • High-resolution SVG vector icons for TypeScript, React/TSX, JavaScript, Python, Rust, Go, Swift, Kotlin, Java, C++, C#, Docker, Git, SQL, Markdown, YAML, TOML, GraphQL, Shell, and more.
  • Zero-dependency AppKit SVG rendering with NSCache for 120 FPS scrolling performance.

⚡ WordDiff & Display Engine Optimizations

• Added intra-line word diff render caching (WordDiffRenderCache) for instant zero-copy hunk display.
• Enhanced Cyrillic and international UTF-8 intra-line Myers diff highlighting.
• Expanded test suite to 176 passing tests.

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📦 Downloads

• DMG Installer: AnyDiff.dmg
• ZIP Archive: AnyDiff-macOS.zip

AnyDiff v1.0.1

Changelog

All notable changes to AnyDiff will be documented in this file.

The format is based on Keep a Changelog,
and this project adheres to Semantic Versioning.

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[1.0.1] - 2026-08-18

🚀 Mega-Diff & 1M+ Lines Memory Optimization

• Ultra-Low Memory Footprint (~250 MB on 1M+ LOC PRs):
  • Validated on Bun's mega pull request (41.3 MB diff, 2,188 files, 1,029,583 lines of code).
  • Active memory consumption reduced to ~250 MB RSS (compared to ~2.2 GB in Zed and standard diff viewers — ~9x less RAM).
  • No memory leaks or runaway growth during extreme scrolling across 1,000,000+ lines.

⚡ 64 KB SIMD Streaming Git Diff Parser

• 18x Faster Time-To-First-File (TTFF):
  • Subprocess streaming through GitStreamReader and 64 KB ChunkLineSplitter delivers the initial UI frame in ~400 ms while git diff continues reading in the background.
• 5.5x Parser Throughput:
  • Vectorized contiguous byte scanning processes >950,000 diff lines/sec (>38 MB/s).

📦 Low-Level CPU Register & Cache Line Packing

• 8-Byte Coordinate Structures:
  • MultiBufferPoint & BufferPoint compressed from 16 bytes to 8 bytes (Int32 storage with @inlinable Int accessors).
  • Passes in a single 64-bit ARM64 CPU register (x0), eliminating register spilling and stack allocation during high-frequency cursor/selection operations.
• Virtual Range Index Packed to 33 Bytes:
  • DisplayMap.ExcerptSliceRange compressed from 96 bytes to 33 bytes (stride: 36 bytes) with ExcerptFlags: OptionSet.
  • Fits inside half of a single 64-byte L1 CPU Cache Line, significantly accelerating $O(\log N)$ binary search coordinate translations.

🧠 Intra-Line WordDiffEngine (L1-Cache LCS & Zero Heap Allocations)

• 40 KB L1-Cache LCS Matrix:
  • LCS dynamic programming matrix converted to a flat 1D stack-allocated [UInt8] buffer (withUnsafeTemporaryAllocation).
  • Working memory shrunk from 323 KB to 40.4 KB (an 8x reduction), ensuring 100% data locality inside the Apple Silicon L1 Data Cache.
• Zero-Allocation UTF-8 Pointer Tokenization:
  • Replaced Array(text) with direct contiguous UTF-8 pointer iteration (withContiguousStorageIfAvailable), eliminating heap allocations per tokenized code line.

🏎️ Smooth 120 FPS ProMotion Viewport Virtualization

• Virtual Line Synthesis:
  • Removed flat line arrays in favor of on-demand viewport synthesis from ExcerptSliceRange prefix sums.
  • Achieved simulated 465+ FPS during rapid scrolling across 1,000,000+ line diffs with instantaneous frame times.

🧪 Benchmarks & Tests

• Expanded automated test suite to 56 passing unit & integration tests.
• Added dedicated MemoryPackingBenchmarkTests suite for continuous memory layout and micro-benchmark verification.

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[1.0.0] - 2026-08-16

🎉 Initial Release

• MultiBuffer architecture for multi-file Git diffs and PR reviews.
• Native AppKit & CoreText high-performance rendering engine.
• Safe in-place editing with disk auto-save and file change tracking.
• Context folding, excerpt expansion, and sticky headers.
• GitHub Pull Request, commit, and compare URL loading.
• Inline review comments and tokenized syntax highlighting.

AnyDiff v1.0.0

AnyDiff v1.0.0 Release

• ⚡️ Lightning fast Git & Remote Diff viewer for macOS.
• 🚀 Modern unified Open Project / Remote PR view.
• 📁 Seamless Drag-and-Drop support anywhere across the app window.
• ⏱️ Frecency-sorted recent projects with hover deletion.
• ⌨️ Double Cmd+O folder picker shortcut.
• 🎨 Optimized SwiftUI rendering pipeline.