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Sweep 27 Oct 2026 · 19:04Z Build v2.1.312 531 read Stable v2.1.308 Latest v2.1.312 Next v2.1.312 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Code CLI 27 Oct 2026
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Hosting the Agent SDK changedagent-sdk/hosting

Nearest release: v2.1.312, published 2 hours before upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Upstream edited this page at 27 Oct 2026 20:59 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 27 Oct 2026 21:07 UTC.

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188188 
189189The container needs your SDK's language runtime:
190190 
191* Python 3.10+ for the Python SDK, or Node.js 18+ for the TypeScript SDK
191* Python 3.10+ for the Python SDK, or Node.js 18.14+ for the TypeScript SDK
192192* Both the TypeScript and Python SDKs bundle a native Claude Code binary for most installs, and the spawned CLI needs no separate Node.js install. See the [quickstart's install note](https://code.claude.com/docs/en/agent-sdk/quickstart.md) for the installs that need a separate native Claude Code install.
193193 
194194The bundled binary is pinned to the SDK package version, so updating the SDK is how you update the CLI. The SDK follows semver: take patch releases continuously and review the [TypeScript](https://github.com/anthropics/claude-agent-sdk-typescript/blob/main/CHANGELOG.md) or [Python](https://github.com/anthropics/claude-agent-sdk-python/blob/main/CHANGELOG.md) changelog before taking a minor.
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331331 
332332| Limitation | What to do |
333333| - | - |
334| No top-level session timeout | A session does not time out on its own. Set `maxTurns` in TypeScript or `max_turns` in Python to bound how many tool-use round trips the agent takes before stopping. |
334| No top-level session timeout | A session doesn't time out on its own. Set `maxTurns` in TypeScript or `max_turns` in Python to bound how many [turns](https://code.claude.com/docs/en/agent-sdk/agent-loop.md#turns-and-messages) the agent takes before stopping. |
335335| Memory growth over long sessions | Cap session length or recycle subprocesses periodically. See [Scaling and concurrency](#scaling-and-concurrency). |
336336| Large parallel-subagent fanouts can hit rate limits | Break work into smaller batches rather than issuing one wide dispatch. |
337337| No per-subagent wall-clock deadline | Cap each [subagent](https://code.claude.com/docs/en/agent-sdk/subagents.md) with `maxTurns` in its `AgentDefinition`. `CLAUDE_ASYNC_AGENT_STALL_TIMEOUT_MS` sets a stall watchdog that fires when a subagent stops producing output; it isn't a total-runtime deadline. |
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