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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
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Claude Code v2.1.243 ·

Version constant bumped to 2.1.243

The version number now reads 2.1.243 everywhere it shows up.

Under the hood Internal Changes
JSON All of v2.1.243
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
Internal ChangesKind: in v2.1.243,
Internal ChangesSection of the release
What

The build stamp changed from 2.1.242 to 2.1.243. Everything that reports a version now reports the new one, including --version, the /status version row, the updater's npm commands, the user-agent strings and the bug-report Environment Info block.

Details
  • Only the version, build time and git commit fields changed; the package URL, README URL, issues explainer, feedback channel, hooks worker URL and sourcemap group are untouched.
  • The same build-metadata object is inlined at roughly 118 places, so the daemon start log line, the x-environment-runner-version request header and the Remote Control minimum-version message all pick it up together.
  • No behaviour change beyond the reported string.
Evidence

BUILD_TIME: "2026-08-24T21:05:22Z"

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

Read from
Names in the bundle--version/status
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 Configure cloud environments touched a line naming --version after this was published. To get the versions of most of the tools in this table, ask Claude to run `check-tools` in a cloud session. It's a shell command installed on the session VM, not a command you type with `/`; you ask Claude because [Claude runs all VM comma… cloud-environments see the edit
Added since A small documentation edit on Recommend your plugin from your CLI touched a line naming /status after this was published. * `CLAUDE_CODE_CHILD_SESSION`: set only in subprocesses Claude Code itself spawns, such as tool calls, hook commands, and [status line](/docs/en/statusline) commands, so the tag does not normally reach a human terminal. A long-lived proces… plugin-hints see the edit
Confirmed since Anthropic's documentation has since written up /status, on Claude Code on Amazon Bedrock. Run `/status` to see the resolved region. When the region came from your AWS config files or the default fallback, Claude Code also notes the source in the `/status` output. amazon-bedrock see the edit
Confirmed since Anthropic's documentation has since written up --version, on Get started. Ubuntu 24.04's repositories carry a new enough bubblewrap and Ubuntu 22.04's don't; on any distribution, confirm with `bwrap --version` that the installed version is 0.8.0 or later before you start Claude Science. claude-science/get-started 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 --version, on Get started.
Anthropic's release notes agreeAdded a Skipped sources line to /status that lists managed settings sources (for example managed-settings.json) present but not applied…

See this entry in the whole of v2.1.243 →

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