Releases
Releases — page 2
Every stable release of the open-source Codex CLI (openai/codex) and of Claude Code (anthropics/claude-code) on GitHub, newest first. Each entry is a short summary of the official notes with a link to the full changelog. Latest: Codex 0.162.1 (9 Oct 2026) and Claude Code 2.1.296 (9 Oct 2026).
Short summaries here; each entry links to its version page and to the official release notes on GitHub.
Codex 0.159.0
Opt-in instant_interrupt lets new input steer Codex during model responses or long-running code-mode calls. (#48135, #48141) · New sessions get a compact welcome screen…
Official notes on GitHubClaude Code 2.1.284
Added Claude Sonnet 5.5 (claude-sonnet-5-5), now the default Sonnet model on the Anthropic API — 1M context, $2/$10 per Mtok with $0.20/Mtok cache reads…
Official notes on GitHubCodex 0.158.0
Configure copy-on-select and right-click paste in the fullscreen TUI. Copied transcript selections now preserve Markdown formatting. (#47639, #47896, #48118) · Connect to MCP servers…
Official notes on GitHubCodex 0.157.1
Chores · Release highlights could not be determined: the supplied PR index is empty, and the GitHub tag comparison returned 404. · Changelog
Official notes on GitHubClaude Code 2.1.283
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 CLAUDE_CODE_GATEWAY_HINT_HEADERS=1 ·…
Official notes on GitHubCodex 0.157.0
Added GPT-6 Sol and Luna, including Amazon Bedrock support and migration prompts for older models. (#47332, #47347) · Enabled fullscreen transcripts by default and…
Official notes on GitHubClaude Code 2.1.282
Added a maxProseWidth setting that caps the width of Claude's prose in wide terminals while tables and code blocks keep the full width ·…
Official notes on GitHubClaude Code 2.1.281
Added Claude apps gateway support for newer Claude Desktop keys in desktop policy blocks, including blockReadsOutsideWorkingDirectories and disableBypassPermissionsMode · Added assume_role on Claude apps…
Official notes on GitHubCodex 0.156.1
Choose GPT-6 Sol or GPT-6 Luna from the model picker. The rate-limit switch prompt now recommends GPT-6 Luna. (#47405) · Changelog · 47405 [hotfix…
Official notes on GitHubCodex 0.156.0
Choose an optional fullscreen UI with /tui for your next launch, including transcript search, mouse selection, and right-click copying. (#46732, #46734, #46883, #46895) ·…
Official notes on GitHubClaude Code 2.1.280
Added Claude Opus 5.5 (claude-opus-5-5), now the default Opus model — 1M context, $4/$20 per Mtok with $0.20/Mtok cache reads · Added mouse support…
Official notes on GitHubClaude Code 2.1.278
Changed auto mode for Claude API and Enterprise users, and on Bedrock, Vertex, Foundry and gateways, to default to the server-side classifier, which does…
Official notes on GitHubCodex 0.155.1
New local TUI sessions now leave reasoning summaries disabled by default, fixing request rejection by providers that do not support them. Explicit reasoning-summary settings…
Official notes on GitHubClaude Code 2.1.277
Added AGENTS.md support: in a project with no CLAUDE.md, Claude Code reads AGENTS.md instead; change it under "Project instructions" in /config (not yet on…
Official notes on GitHubClaude Code 2.1.276
Fixed every request failing with 400 … Input tag 'advisor_20260301' when ANTHROPIC_BASE_URL points at a proxy or gateway (2.1.275 regression)
Official notes on GitHubCodex 0.155.0
Added experimental /voice conversations with live transcripts and microphone controls on supported builds, enabled through /experimental. (#43581, #43651, #44331) · The TUI now shows…
Official notes on GitHubClaude Code 2.1.275
Added the signed-in account to Claude apps gateway sign-in: when the gateway names it, you confirm it before the credential is saved, and /status…
Official notes on GitHubClaude Code 2.1.274
Added a visible warning when memory usage is critical, with steps to free memory or restart safely · Added CLAUDE_CODE_MCP_STARTUP_WAIT_MS to bound how long…
Official notes on GitHubClaude Code 2.1.273
Added x-claude-code-request-class, x-claude-code-agent-type, x-claude-code-prev-tool-durations, x-claude-code-compaction and x-claude-code-context-compacted request headers for LLM gateways; opt in with…
Official notes on GitHubClaude Code 2.1.272
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