Claude Code v2.1.283
Claude Code v2.1.283 was released on .
Summary
Claude Code 2.1.283 makes it easier to manage which AI models your team can use, with new controls to lock in specific versions and block others—keeping you in charge when new releases roll out. We've also added tools to audit your prompts and configurations against current be...
Release Context
- This was the 227th Claude Code release of 2026 tracked by Havoptic.
- It shipped 1 day after Claude Code v2.1.282 (September 24, 2026).
Shipped around the same time
Within 3 days of this release, other AI coding tools also shipped:
- OpenAI Codex CLI rust-v0.158.0 (September 28, 2026)
- OpenCode v1.18.33 (September 28, 2026)
- Grok Build v1.0.44 (September 28, 2026)
- Kiro CLI v2.25.0 (September 28, 2026)
- Factory Droid v0.228.1 (September 28, 2026)
Compare Claude Code
- Claude Code vs OpenAI Codex CLI
- Claude Code vs Cursor
- Claude Code vs Gemini CLI
- Claude Code vs Kiro CLI
- Claude Code vs GitHub Copilot CLI
- Claude Code vs Devin Desktop
- Claude Code vs Antigravity CLI
- Claude Code vs Grok Build
- Claude Code vs Cline
- Claude Code vs OpenCode
- Claude Code vs Zed
- Claude Code vs Factory Droid
- Claude Code vs Devin
- Claude Code vs Lovable
- Claude Code vs Amp
- Claude Code vs GitHub Copilot in VS Code
- Claude Code vs Replit Agent
- Claude Code vs Bolt
- Claude Code vs v0
Release Notes
- Added x-claude-code-prompt-id to the gateway hint headers so LLM gateways can group the requests that serve one user prompt; opt in with CLAUDECODEGATEWAYHINTHEADERS=1
- Added availableModelsMatch managed setting: with "exact", an availableModels entry allows only the model version it names, so new releases stay blocked until listed
- Added deniedModels managed setting to block specific models, even when availableModels allows them
- Added MCP tool, WebFetch and WebSearch outputs to the tool.output OpenTelemetry span event when OTELLOGTOOLCONTENT=1
- Added /doctor prompt-audit (also /checkup prompt-audit) to audit your CLAUDE.md files, skills, agents and commands for prompting patterns written for older models
- Added click-to-expand for truncated messages from your other sessions in fullscreen mode
- Added path to --plugin-dir load-failure entries in the stream-json system/init pluginerrors, naming the directory that did not load
- Added an opt-in loadtestmode block to the Claude apps gateway config: requests are built and signed but not sent upstream, and clients get a canned reply, so a deployment can be load tested
- Added a mantle upstream provider to the Claude apps gateway for Ama
Other Recent Claude Code Releases
- v2.1.325 (November 13, 2026)
- v2.1.323 (November 12, 2026)
- v2.1.322 (November 10, 2026)
- v2.1.321 (November 9, 2026)
- v2.1.319 (November 6, 2026)
Upgrading from v2.1.283? See all 36 releases since.
All Claude Code releases · All AI coding tool releases on Havoptic