Agent Breaking Changes_

← Copilot CLI

Copilot CLI 1.0.103-0

2026-10-22 · official notes

Summary

• Clicking a completed response code block copies its original code when enabled.
• Reuse cached local MCP tool snapshots across registered Git worktrees in one repository
• Improve remote launch options with clearer hosting/connection flags and retire legacy --remote/--no-remote startup flags

Full notes

**Added**
- Clicking a completed response code block copies its original code when enabled.

**Improved**
- Reuse cached local MCP tool snapshots across registered Git worktrees in one repository
- Improve remote launch options with clearer hosting/connection flags and retire legacy --remote/--no-remote startup flags

**Fixed**
- ACP sessions now honor saved sandbox settings and --sandbox/--no-sandbox flags, including on resume.
- Cloud replies keep full text when the CLI reconnects after a dropped connection
- Sessions browser shows a session's recorded title instead of a generic Session N fallback when available
- Model-specific default Responses verbosity now applies correctly for GPT-5 models unless session verbosity is explicitly set
- Allow dnx commands to use existing .NET and NuGet sandbox grants when developer-tool access is enabled
- Windows dev-tool shims like npm.cmd now receive the same sandbox grants as npm.
- Gemini tool calls now avoid 400 schema validation errors for nullable and enum fields
- Resume sessions under mandatory managed model defaults without rejecting saved preferences
- Hash mention suggestions refresh automatically when the GitHub client becomes ready