GitHub Copilot CLI 1.0.76 adds sessions sidebar, enterprise sandbox floor
GitHub
GitHub Copilot CLI v1.0.76 (July 30, 2026) adds a new Sessions sidebar for managing multiple concurrent sessions, lets enterprise administrators enforce a restrictive sandbox floor that managed settings can tighten but never loosen, adds grok-4.5 model support, enforces sandbox denied-path rules for relative and symlinked entries on macOS/Linux, and caps hook output at 10 MiB to prevent a memory-exhaustion vector from unbounded hook responses.
Why it matters
The enterprise-enforced sandbox floor and hardened hook-output bound are notable security/governance additions as Copilot CLI competes with Codex CLI and Claude Code for autonomous-agent trust in managed environments.
Importance: 2/5
Notable minor-version update with real security/governance features, single-source official confirmation.