GitHub Copilot CLI 1.0.103 retires the legacy --remote flags and extends sandbox support

GitHub Copilot CLI 1.0.103, dated October 22, 2026, per its release notes:

• Changed: remote launch options get clearer hosting and connection flags, and the legacy --remote / --no-remote startup flags are retired.
• New: clicking a completed response code block copies its original code when enabled; the sessions browser shows a session's recorded title instead of a generic "Session N"; local MCP tool snapshots are reused across Git worktrees of one repository.
• Sandbox: ACP sessions honor saved sandbox settings and the --sandbox / --no-sandbox flags, including on resume; dnx commands can use existing .NET and NuGet sandbox grants when developer-tool access is enabled; Windows dev-tool shims such as npm.cmd get the same grants as npm.
• Models: model-specific default Responses verbosity now applies for GPT-5 models unless session verbosity is set explicitly; Gemini tool calls avoid 400 schema-validation errors on nullable and enum fields; sessions resume under mandatory managed model defaults without rejecting saved preferences.
• Fixes: cloud replies keep their full text after a dropped connection, and hash-mention suggestions refresh once the GitHub client is ready.