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HomeDocsClaude Code CLI 2 Oct 2026
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Nearest release: v2.1.288, 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 2 Oct 2026 21:20 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 2 Oct 2026 21:37 UTC.

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312312* On macOS and Linux, Claude Code stops your running background tasks when the operating system reports critical memory pressure, provided the session has been idle for at least 30 minutes and no turn or subagent is running. Requires Claude Code v2.1.193 or later
313313 * The [debug log](/docs/en/debug-your-config) says why tasks were stopped, or why a pressure event left them running
314314 * Set [`CLAUDE_CODE_DISABLE_BG_SHELL_PRESSURE_REAP`](/docs/en/env-vars) to `1` to turn off memory-pressure stops
315* Background Bash and PowerShell commands have a time limit, counted from the moment the command enters the background: 30 minutes, or the `timeout` Claude asks for when it starts a command in the background, up to a maximum of 2 hours. A command that moves to the background while it runs, for example with `Ctrl+B`, gets 30 minutes from the move. When a command reaches its limit, Claude Code stops it and tells Claude why, and Claude can start it again with a longer `timeout` if the work still needs it. To lengthen the limits, see [Raise the time limit for background commands](/docs/en/tools-reference#raise-the-time-limit-for-background-commands) in the tools reference
315* Background commands in a local session you work in from a terminal, the desktop app, or the VS Code extension have no time limit. In a session that runs unattended, such as a `-p` run or a cloud session, Claude Code stops a background command at its [time limit](/docs/en/tools-reference#time-limit-for-background-commands)
316316* A background command that a foreground [subagent](/docs/en/sub-agents#run-subagents-in-foreground-or-background) started ends when that subagent's run ends, whether it finished, failed, or was interrupted; see [When a background command stops](/docs/en/tools-reference#when-a-background-command-stops) in the tools reference
317317 
318318To disable all background task functionality, set the [`CLAUDE_CODE_DISABLE_BACKGROUND_TASKS`](/docs/en/env-vars#variables) environment variable to `1`. Starting in [bare mode](/docs/en/headless#start-faster-with-bare-mode) turns it off as well.
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