Major moments in Copilot CLI's journey from first build to general availability.
Sep 26, 2025
v0.0.328 — First Public Release
Copilot CLI ships its first public build. Basic agent loop with shell tools, MCP support, and Sonnet 4 model.
Sep 29, 2025
v0.0.329 — Sonnet 4.5 Support
Added Claude Sonnet 4.5 model support and the /model slash command.
Oct 2, 2025
v0.0.333 — Image Support & Shell Commands
Added image input via @-mentions, ! shell command prefix, and /usage stats.
Oct 15, 2025
v0.0.342 — Session System Overhaul
New session logging format, Kitty protocol, multi-line input support.
Oct 21, 2025
v0.0.348 — Streaming Output
Token-by-token streaming output arrives.
Oct 24–28, 2025
v0.0.351–353 — GitHub Universe Launch
Custom agents, /delegate command, parallel tool calling. Major showcase at GitHub Universe.
Nov 12, 2025
v0.0.355 — Bundled ripgrep & grep/glob tools
CLI gains its own search tools and self-documentation with /help.
Nov 13, 2025
v0.0.356 — GPT-5.1 Models
GPT-5.1, GPT-5.1-Codex, and GPT-5.1-Codex-Mini become available.
Nov 24, 2025
v0.0.363 — Opus 4.5 & GPT-4.1
Multiple new models added in a single release.
Dec 11, 2025
v0.0.369 — GPT-5.2 Support
Added support for the GPT-5.2 model.
Jan 2, 2026
v0.0.374 — Auto-compaction & Subagents
Auto-compaction at 95% token limit, built-in subagents for explore/task, web_fetch tool.
Jan 14, 2026
v0.0.382 — GPT-5.2-Codex Model
GPT-5.2-Codex model support added.
Jan 22, 2026
v0.0.389 — MSI Installer, Plugins, OAuth MCP
Windows MSI installer, plugin marketplace, MCP OAuth 2.0, MIT License. Skills invocable via slash commands.
Jan 30, 2026
v0.0.400 — Autopilot Mode & Theme Picker
Autopilot mode for autonomous task completion (experimental), /theme command, /diff and /review commands.
Feb 5, 2026
v0.0.404 — Opus 4.6 & Background Agents
Claude Opus 4.6 model support. Background agents enabled for all users.
Feb 11, 2026
v0.0.407 — Alt-Screen Mode
Experimental alternate screen buffer mode with mouse text selection, /instructions command.
Feb 17, 2026
v0.0.411 — Sonnet 4.6, Autopilot & Fleet for All
Claude Sonnet 4.6, autopilot mode, and /fleet command available to all users.
Feb 19, 2026
v0.0.412 — Cross-Session Memory
Ask about past work, files, and PRs across sessions. /fleet orchestrator validates subagent work.
Feb 25, 2026
v0.0.418 — 🎉 General Availability 🎉
Copilot CLI is now generally available! /research command for deep research with exportable reports.
Mar 3, 2026
v0.0.421 — Repo-level Config & Markdown Tables
AUTO theme reads terminal ANSI palette, repo-level config via .github/copilot/config.json, clickable PR references.
Mar 5, 2026
v0.0.422-1 — Latest Release
Personal hooks, copy_on_select, Ctrl+R history search, startup prompt hooks, background notifications.