GitHub Copilot CLI v1.0.59
GitHub Copilot CLI v1.0.59 was released on .
Summary
2026-06-02 - Actionable error message shown when GitHub API rate limit is hit during copilot update - Add /rubber-duck command for adversarial feedback on code and designs - Plugin slash commands (...
Release Context
- This was the 102nd GitHub Copilot CLI release of 2026 tracked by Havoptic.
- It shipped the same day as GitHub Copilot CLI v1.0.58 (June 2, 2026).
Shipped around the same time
Within 3 days of this release, other AI coding tools also shipped:
- Gemini CLI v0.45.2 (June 5, 2026)
- Claude Code v2.1.166 (June 5, 2026)
- Claude Code v2.1.165 (June 5, 2026)
- Kiro CLI v2.6.0 (June 5, 2026)
- Gemini CLI v0.45.1 (June 4, 2026)
Compare GitHub Copilot CLI: vs Claude Code · vs OpenAI Codex CLI · vs Cursor · vs Gemini CLI · vs Kiro CLI · vs Devin Desktop · vs Antigravity CLI
Release Notes
2026-06-02 - Actionable error message shown when GitHub API rate limit is hit during copilot update - Add /rubber-duck command for adversarial feedback on code and designs - Plugin slash commands (/plugin install, uninstall, update, marketplace add/remove/browse) now show immediate feedback while the operation is in progress - Canceling a running shell command (Ctrl+C on a !command, or aborting an agent command — including in sandboxed and background-promoted shells) now terminates the whole process tree instead of leaving orphaned processes running - Canvas providers can return file:// URLs in open results for local file previews - Symlinked directories appear in /cwd completion suggestions - In Azure DevOps-only repositories, the built-in GitHub MCP server now exposes only the websearch tool instead of being fully disabled - Quota footer shows remaining requests as a rounded percentage - /lsp show, /lsp test, and /lsp reload correctly discover project LSP config when the CLI is launched from a subdirectory - MCP server timeout configuration is preserved after tools list changes - /skills add and /skills remove correctly handle paths wrapped in quotes (e.g., from Windows Explorer "Copy as path") - Running copilot with an unquoted multi-word prompt now shows a helpful "quote your prompt" hint instead of a raw commander error - Default networking transport is now HTTP/1.1, improving reliability on some network paths. Opt into HTTP/2 with COPILOTENABLEHTTP2=1. - Plugins auto-installed from repository settings no longer leak into user global config - Grep tool correctly handles tsx and jsx as file type filters - Add the /voice command to dictate prompts using local speech-to-text models - COPILOTHOME is honored for the server discovery registry directory
Other Recent GitHub Copilot CLI Releases
- v1.0.71 (July 16, 2026)
- v1.0.70 (July 10, 2026)
- v1.0.69 (July 7, 2026)
- v1.0.68 (July 1, 2026)
- v1.0.67 (June 30, 2026)
All GitHub Copilot CLI releases · All AI coding tool releases on Havoptic