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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.251 ·

--bg help now names the commands that take the printed id

--bg help now names attach, logs, stop and rm as the commands taking the printed id.

Use it now New Features
JSON All of v2.1.251
Use it nowTier: how much it should matter to you
3Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
SessionsArea: what it touches
New FeaturesKind: in v2.1.251,
What probably matters to youSection of the release
What

Starting a session with --bg/--background prints an id, and the flag description now spells out that claude attach, logs, stop and rm all take that id, with claude agents listing the running sessions.

Details
  • Replaces the older description, which only pointed at claude agents.
Evidence

Prints the id that claude attach, logs, stop and rm take; claude agents lists them

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

Read from
Names in the bundle--bg--backgroundclaude agents
Since it was published

The entry above is what we published on the day. These lines were added later, as Anthropic's own pages caught up, and they sit beside the original rather than replacing it.

Added since A small documentation edit on CLI reference touched a line naming --background after this was published. | `--bg`, `--background` | Start the session as a [background agent](/docs/en/agent-view) and return immediately. Prints the session ID and management commands. Combine with `--exec` to run a shell command as a background job instead of a … cli-reference see the edit
Added since A small documentation edit on CLI reference touched a line naming --bg after this was published. | `--bg`, `--background` | Start the session as a [background agent](/docs/en/agent-view) and return immediately. Prints the session ID and management commands. Combine with `--exec` to run a shell command as a background job instead of a … cli-reference see the edit
Confirmed since Anthropic's documentation has since written up --background, on CLI reference. | `--bg`, `--background` | Start the session as a [background agent](/docs/en/agent-view) and return immediately. Prints the session ID and management commands. Combine with `--exec` to run a shell command as a background job instead of a … cli-reference see the edit
Added since A small documentation edit on What's new touched a line naming claude agents after this was published. Also this week: **fork mode** is on by default in interactive sessions, so Claude can delegate a side task to a subagent that inherits the full conversation; **GitLab** merge request URLs work with `--worktree` and the `claude agents` view… whats-new/index see the edit
Confirmed since Anthropic's documentation has since written up --bg, on Manage multiple agents with agent view. | `claude daemon stop --any` | Stop the supervisor process and the background sessions it hosts. Pass `--keep-workers` to leave background sessions running so the next supervisor reconnects to them. The next `claude agents` or `claude --bg… agent-view see the edit
Confirmed since Anthropic's documentation has since written up claude agents, on Claude Code changelog. * Fixed `claude agents`: pressing ← again at a natural pace to go back to the agent list no longer gets ignored until you pause for over a second changelog see the edit
How sure we are
Two sources agreeTwo things we can check say the same as this entry.
Anthropic's documentation agreesAnthropic's documentation has since written up claude agents, on Claude Code changelog.
Anthropic's release notes agreeFixed backgrounded sessions (←, /background, --bg) losing a Vertex/Bedrock gateway (ANTHROPIC__BASE_URL + CLAUDE_CODE_SKIP__AUTH) exported…

See this entry in the whole of v2.1.251 →

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