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Sweep 08 Oct 2026 · 18:53Z Build v2.1.295 516 read Stable v2.1.286 Latest v2.1.295 Next v2.1.295 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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Claude Code v2.1.290 ·

Restarting a background session can now continue as a copy

A restarted background session can now resume as a fresh copy with --fork-session, and a saved reply starting with / or ! gets a warning

You'll notice Improvements
JSON All of v2.1.290
You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
SessionsArea: what it touches
ImprovementsKind: in v2.1.290,
ImprovementsSection of the release

Unclear What decides whether a restart continues the original session or a copy is not clear.

What

A background session is a Claude Code conversation that keeps running without a terminal window. When Claude Code restarts one, it can now use --resume <id> --fork-session, which continues the conversation under a new session ID instead of reusing the original. Before, a restart always resumed the same session.

Other changes to restarts:

  • When a session is retried after Claude declined a request, the job's output and details are cleared and its saved list of links is reset.
  • If a saved reply begins with / or !, Claude Code warns that "the saved reply starts with / or !, so no restart sends it".
Why

Retrying a background session after a refusal now has its own path, which can start from a copy of the conversation.

Read from
Names in the bundle--resume--fork-session
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.

Confirmed since Anthropic's documentation has since written up --fork-session, on Manage sessions. * Session picker at launch: a session you select from the [session picker](#use-the-session-picker), whether you opened it with `claude --resume` alone, `claude --from-pr`, or a name that matches more than one session. Claude Code starts t… sessions see the edit
Confirmed since Anthropic's documentation has since written up --resume, on Claude Code changelog. * Fixed plan mode not being restored when resuming a session from the `claude --resume` session picker or with `/resume` changelog see the edit
How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtWhat decides whether a restart continues the original session or a copy is not clear.
Anthropic's documentation agreesAnthropic's documentation has since written up --resume, on Claude Code changelog.
Anthropic's release notes agreeFixed plan mode not being restored when resuming a session with --continue or --resume <session-id> in the terminal

See this entry in the whole of v2.1.290 →

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