What changed in Claude Code, Codex, Cursor, GitHub Copilot, and Gemini CLI this week, and what to do about it.https://agent-config.com/https://agent-config.com/this-week/2026-w42/https://agent-config.com/this-week/2026-w42/Claude Code 2.1.293 makes Haiku 5.5 the default Haiku, Cursor ships remote control for local agents, and Copilot's local sandboxing is generally available.Mon, 12 Oct 2026 00:00:00 GMThttps://agent-config.com/this-week/2026-w41/https://agent-config.com/this-week/2026-w41/Claude Code 2.1.284 makes Sonnet 5.5 the default Sonnet, Codex 0.159.1 makes GPT-6.1 Sol the bundled default, and Copilot drops four models while adding computer use.Mon, 05 Oct 2026 00:00:00 GMThttps://agent-config.com/this-week/2026-w40/https://agent-config.com/this-week/2026-w40/Claude Code 2.1.280 makes Opus 5.5 the default Opus, Codex 0.156.0 turns on voice and worktrees by default, and Cursor launched Rollouts and Security Review for Teams and Enterprise.Mon, 28 Sep 2026 00:00:00 GMThttps://agent-config.com/this-week/2026-w39/https://agent-config.com/this-week/2026-w39/Claude Code 2.1.277 reads AGENTS.md when a project has no CLAUDE.md, Codex 0.155.0 adds experimental /voice, and Copilot auto model selection gains efficiency, balance, and intelligence tiers.Mon, 21 Sep 2026 00:00:00 GMThttps://agent-config.com/this-week/2026-w38/https://agent-config.com/this-week/2026-w38/Cursor launched Projects, Codex 0.154.0 adds --worktree and drops codex mcp-server, and Claude Code 2.1.269 adds claude plugin eval and /output-style.Mon, 14 Sep 2026 00:00:00 GMThttps://agent-config.com/this-week/2026-w37/https://agent-config.com/this-week/2026-w37/Claude Code 2.1.263 makes Fable 5.1 the default Fable model, Codex 0.153.4 makes Astra the bundled default, and Cursor shipped self-hosted machines.Mon, 07 Sep 2026 00:00:00 GMT