This Week in Coding Agents
I read the week's releases from Claude Code, Codex, Cursor, GitHub Copilot, and Gemini CLI, then write down what actually changed for people who run coding agents. I ship it on Mondays.
This Week in Coding Agents: October 12, 2026
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.
This Week in Coding Agents: October 5, 2026
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.
This Week in Coding Agents: September 28, 2026
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.
This Week in Coding Agents: September 21, 2026
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.
This Week in Coding Agents: September 14, 2026
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.
This Week in Coding Agents: September 7, 2026
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.