Changelog

Every release, every feature. From day one to now.

July 2026

v3.5.9

A Fresh New Look & Smarter Than Ever

  • Brand-new interface — cleaner, faster, and built for focus
  • Settings redesigned from the ground up: everything you need, exactly where you expect it
  • Universal MCP support — connect with VS Code, Cursor, Windsurf, Kilo, and any MCP-ready tool
  • Blazing fast sessions and buttery-smooth rendering — the snappiest Codey yet
  • Full reasoning control — pick your effort level from none all the way to max
  • Bring your own provider with Anthropic or OpenAI compatibility modes
  • Smarter thinking across the board — optimized for Alibaba, MiniMax, Anthropic, Hugging Face, Z.ai, and more
July 2026

v3.5.8

Bug Fixes & Stability Improvements

  • Resolved various minor bugs and improved overall application stability.
  • Addressed internal styling and layout issues for a smoother user experience.
June 2026

v3.5.7

Smooth Collapsible Work Logs & Live Timer

  • Introduced a collapsible "Worked" container for intermediate actions (tool calls, reasoning steps) to reduce chat clutter.
  • Added a live, ticking elapsed-time counter in the header that accurately tracks duration while the AI is executing tasks.
  • Implemented smooth, spring-driven expand and collapse transitions with custom easing (SOFT_SPRING) and subtle organic bounce.
  • Enhanced motion design to animate in all scenarios, including manual toggle of historical or finished session turns.
  • Resolved layout jumps and visual snaps by moving spacing to the inner padding of the transition container.
June 2026

v3.5.6

Agent Memory & Open Session

  • Durable memory system (SessionMemory) — AI retains context and facts across sessions and subagents
  • New Memory tool with recall, remember, replace, forget, list actions across 3 scopes: user, project, agent
  • Auto-extract: AI automatically learns and stores durable facts after each step — no manual saving needed
  • Unified memory protocol across all agents (Prometheus, Athena, Matis, Hermes) with clear read/store/forget rules
  • Memory config: max 25KB storage, 120 entries limit, auto-cleanup after 120 days, per-agent permissions
  • New Open Session tool — spawn a child session with any agent and model (GPT-4o, Claude Sonnet, Gemini, DeepSeek, and more)
  • Interactive Open Session UI in both TUI and App — agent name, model, thinking status, and navigation to child session
  • New IRIS and SCOUT subagents with advanced task delegation system
  • Prometheus promoted to default implementation agent
  • Major agent improvements: Prometheus (implementation), Athena (planning), Matis (research), Hermes (workflows)
  • Granular memory permissions — configure read/write access per agent
  • Faster agent response times and reduced token consumption
  • Memory context handoff in task delegation — subagents inherit relevant durable facts automatically
  • Memory auto-extract uses structured AI generation (generateObject) for reliable, deduplicated fact extraction
June 2026

v3.5.5

Automation Tasks

  • AI agents can now create, manage, and control automation tasks end-to-end
  • All agents (Prometheus, Athena, Matis, Hermes) gain automation awareness
  • Agents detect workflow patterns and suggest n8n automation when appropriate
  • Talos subagent handles full n8n workflow lifecycle — from design to deployment
  • 20 n8n tools available including workflow creation, validation, and execution
  • Dual-mode system: documentation mode (7 tools, no credentials) and full mode (20 tools)
  • 2,700+ n8n templates searchable for instant workflow scaffolding
  • Multi-service integration: connect Slack, GitHub, Mailchimp, Notion, and more
  • Scheduled workflows, event-driven triggers, and data transformation pipelines
  • Production-grade validation with 4 profiles (minimal, runtime, ai-friendly, strict)
  • Automatic error handling injected on all external API calls
  • Workflow lifecycle management: create, validate, deploy, monitor
May 2026

v3.5.0

Built-in Tools & Integrations

  • Playwright browser automation integrated as always-available MCP server
  • 20+ browser tools: navigate, click, type, drag, screenshot, form filling
  • Filesystem MCP server with advanced file operations and batch processing
  • Parallel multi-file reading, directory trees, glob-based search
  • Safe editing with dry-run preview mode before applying changes
  • Hermes agent (Workpilot) becomes primary consumer of Filesystem MCP
  • Browser tab management, keyboard input, and file upload support
  • Page analysis tools: snapshot, accessibility tree, console logs, network requests
  • Auto-initialization of built-in MCP servers on startup — zero configuration
April 2026

v3.4.0

Workpilot — Hermes Agent

  • Introducing Workpilot: a dedicated mode for non-code work
  • Hermes agent handles research, documents, spreadsheets, slides, PDFs, and browsing
  • PDF reading, extraction, and generation
  • Excel/CSV creation and manipulation with formula support
  • Document drafting and editing (DOCX, Markdown)
  • Presentation and slide deck generation
  • Browser-based research and web navigation
  • n8n workflow automation from within the workspace
  • Filesystem MCP integration for advanced multi-file operations
  • Drag-and-drop, form filling, and keyboard automation via Playwright
March 2026

v3.3.0

Autopilot — Matis Agent

  • Introducing Autopilot: end-to-end application generation from prompt to production
  • Matis agent takes an app idea and builds a complete Next.js product
  • Infinite canvas architecture connecting PRD, database, UI, components, APIs, and deployment
  • Production-ready web surfaces with premium UI direction built in
  • Full-stack integration: database schemas, webhook endpoints, API responses
  • Automatic n8n workflow planning for app features
  • Design taste embedded in the generation flow — no generic templates
  • Delegation protocol between Matis and Talos for automation components
February 2026

v3.2.0

Prompt Engineering & Agent Intelligence

  • Complete rewrite of all agent system prompts for concision and role fidelity
  • Prometheus: enhanced build-mode with n8n workflow detection patterns
  • Athena: strict plan-only role with anti-manipulation boundaries
  • Scout: read-only exploration with configurable thoroughness levels
  • Iris: specialist agent for background parallel work
  • Cross-agent integration of simplicity principles and coding standards
  • Improved tool documentation consistency across all prompts
  • Behavioral constraints embedded into agent prompts for safety
  • Language matching: agents respond in the same language as the user
  • Tool playbook system for structured tool usage guidance
January 2026

v3.1.0

Performance & Stability

  • Smooth scroll acceleration in Terminal UI (Mac-style gesture response)
  • Animation refinements across desktop and web interfaces
  • Improved error recovery across all agent workflows
  • Session stability improvements for long-running conversations
  • Faster model provider initialization and SDK caching
  • File read caching with mtime validation for performance
  • Memory usage optimization for large project contexts
  • Better handling of provider rate limits with graceful fallbacks
  • UI polish: improved spacing, contrast, and micro-interactions
  • Bug fixes for git snapshot operations and session forking
December 2025

v3.0.0

Multi-Agent Architecture

  • Introducing the multi-agent system with 7 specialized AI agents
  • Prometheus: the Builder agent for code implementation and refactoring
  • Athena: the Strategist agent for architecture planning and analysis
  • Scout: the Explorer agent for read-only codebase investigation
  • Iris: the Specialist agent for background parallel tasks
  • Matis: the Creator agent for full-stack application generation
  • Hermes: the Operator agent for documents, research, and automation
  • Talos: the Automation subagent for n8n workflow architecture
  • Subagent system for context isolation and parallel execution
  • Agent delegation protocol for cross-agent task routing
  • Read-only vs build-mode agent separation for safety
November 2025

v2.5.0

Skills System

  • Modular skill system for specialized domain expertise
  • File-based skills defined in SKILL.md with YAML frontmatter
  • Multi-source discovery: project, global, Claude-compatible, and custom paths
  • 10-50x faster search with inverted indexes (5-10ms for 1000 skills)
  • AI-powered contextual skill suggestions based on user prompts
  • Automatic trigger matching — skills activate when relevant
  • Bundled resources: scripts, references, and assets per skill
  • Permission integration for skill access control
  • Background sync with stale-while-revalidate pattern
  • @mention and /skill slash command for manual skill loading
October 2025

v2.4.0

MCP Protocol Support

  • Full Model Context Protocol (MCP) implementation for external tool servers
  • Local MCP servers via stdio transport — run tools as subprocesses
  • Remote MCP servers via HTTP/SSE with streaming support
  • Built-in OAuth 2.0 authentication flow with PKCE
  • Dynamic client registration and automatic token refresh
  • Runtime tool discovery from connected MCP servers
  • Resource and prompt support alongside tools
  • Tool caching for performance optimization
  • Tier-based access control for built-in MCP servers
  • Configuration via codey.json with hot-reload support
September 2025

v2.3.0

Custom Agents & Subagents

  • Define custom agent personas using markdown files
  • Global agents in ~/.config/codey/agents/ or per-project in .codey/agents/
  • Agent configuration: custom prompts, model selection, tool scopes
  • Built-in lock guard: native agents (Prometheus, Athena) cannot be overwritten
  • Global agents CRUD API for programmatic management
  • Subagent spawning for parallel isolated tasks
  • Subagent context isolation — agents cannot read each other's conversations
  • Agent mode filtering: primary agents vs subagents vs hidden
  • Migration-safe loading of legacy agent configurations
August 2025

v2.2.0

Session Intelligence

  • Session compaction: automatic summarization of old messages to preserve context
  • Session forking: create child sessions from any conversation point
  • Session reverting: roll back to previous states with git snapshot integration
  • Session sharing: generate shareable links to conversations
  • Persistent conversation history across CLI and Desktop sessions
  • Message-part architecture: text, tool states, files, reasoning, subtasks
  • Real-time streaming of all LLM responses with token-level updates
  • Tool execution logging with duration, input arguments, and output
  • Thread history search and resume across sessions
  • Visual diff reviews for file changes proposed by build agents
July 2025

v2.1.0

70+ AI Providers

  • Unified interface for 30+ LLM providers via Vercel AI SDK and Models.dev
  • Support for OpenAI, Anthropic, Google Gemini, Amazon Bedrock, and more
  • OpenRouter integration for access to hundreds of models
  • Ollama and local model support for fully offline operation
  • Dynamic model discovery from provider APIs
  • Adaptive thinking support for new Claude reasoning modes
  • Provider-specific schema transformations for optimal compatibility
  • API key, OAuth, and AWS IAM credential management
  • Per-provider configuration overrides (timeouts, base URLs, custom headers)
  • Model capability detection: text, images, audio, video, PDF input support
  • Streaming reliability with SSE wrapping for consistent token delivery
June 2025

v2.0.0

Security & Permissions System

  • Three-tier permission system: allow, ask, deny
  • Granular control per tool, per directory, per operation
  • Glob/wildcard pattern matching for flexible rules
  • Protected directory enforcement — sensitive paths are read-only
  • Bash command analysis: dangerous patterns (rm -rf) blocked before execution
  • External directory protection with explicit approval required
  • Session-based permission caching to reduce approval prompts
  • Configuration via codey.json with project-level overrides
  • Guard utility wraps all tool operations with automatic permission checking
  • Structured error responses with permission details and matched rules
May 2025

v1.5.0

Desktop Application

  • Native desktop application built with Tauri for macOS, Windows, and Linux
  • Bidirectional sync between Desktop and CLI sessions
  • Real-time collaboration through git worktree management
  • Dual-authentication: provider keys (auth.json) + Codey account (account.json)
  • Subscription tier management synced between Desktop and CLI
  • Cross-platform installation: Homebrew, npm, Scoop, Chocolatey, and curl
  • Auto-update system with version management
  • System tray integration and native notifications
  • Hardware-accelerated rendering for smooth UI performance
April 2025

v1.4.0

Web Interface & Dashboard

  • Rich web client dashboard accessible via local server
  • Thread history navigation with search and resume
  • Visual diff reviews with color-coded file changes
  • Tool execution logs: click any step to review output and duration
  • Live settings management for models, themes, and experimental flags
  • Real-time streaming of agent responses in the browser
  • WebSocket-based event system for live updates
  • Responsive layout for desktop and tablet browsers
March 2025

v1.3.0

LSP & Code Formatters

  • Language Server Protocol integration for syntax and compilation analysis
  • Automatic diagnostic feedback: agents detect and fix compile errors
  • Support for TypeScript, Python, Go, Rust, and more via LSP servers
  • Auto-triggered code formatters after file edits (Prettier, ESLint)
  • Custom formatter commands configurable per project
  • Formatter detection from project configuration files
  • Tree-sitter parsers for syntax highlighting in terminal UI
  • Code search powered by ripgrep for fast text matching
February 2025

v1.2.0

Terminal UI (TUI)

  • Interactive Terminal UI with streaming responses and visual file previews
  • Color-harmonized themes: codey, one-dark, everforest, synthwave84, and more
  • Customizable keybindings with leader key system (Ctrl+x default)
  • File reference system: type @filename to inject file contents into prompts
  • Shell command integration: prefix with ! to feed output directly to agents
  • Keyboard shortcuts: new session, undo/redo, compact, editor, share, exit
  • Agent switching via Tab key between Build and Plan modes
  • Scroll acceleration with Mac-style smooth gestures
  • Fuzzy search auto-completion for slash commands
January 2025

v1.1.0

Core Tool System

  • 9 file editing strategies for surgical code modifications
  • Shell execution with infinite loop detection and background process support
  • File reading with automatic truncation for LLM context limits
  • File writing with atomic operations and backup
  • Glob-based file discovery and ripgrep-powered text search
  • Web fetching and web search tools for real-time information
  • Code search for semantic code navigation
  • Todo management for task tracking within sessions
  • Truncation-aware output handling for large results
  • All tools validated with Zod schemas and permission-checked before execution
December 2024

v1.0.0

Initial Release

  • Local-first AI coding agent for terminal and desktop
  • Project-aware context with automatic git integration
  • Configuration hierarchy: remote, global, custom path, project, inline, managed
  • Support for JSON and JSONC configuration files
  • File-based JSON storage engine with file locking for concurrency
  • Event bus system for decoupled communication between modules
  • Instance-based architecture with state isolation per directory
  • Git worktree management for parallel session support
  • Structured logging with service-based organization
  • Feature flags for gradual feature rollout
  • ID generation, shell detection, and environment utilities
  • Cross-platform support: macOS, Linux, and Windows

Initial release — December 2024