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Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.259 ·

Artifact 'pinned' support added, gated by frozenArtifactPins

Artifacts and listings carry a pinned field with a pins_enabled flag, gated by frozenArtifactPins.

TierNothing to try yethow much it should matter to you
Useful3my rating, 1 to 5
Signal4worth watching, 1 to 5
AreaArtifactswhat it touches
KindIn Developmentin v2.1.259,
Nothing to try yet

Artifacts and listings carry a pinned field with a pins_enabled flag, gated by frozenArtifactPins.

Artifacts and artifact listings now support a pinned field, with list results carrying a pins_enabled flag. Create and publish responses now include messaging that reflects the current pin state.

Read from
Names in the bundlepinnedpins_enabledfrozenArtifactPins
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 Customize sessions in self-hosted environments touched a line naming pinned after this was published. | `CLAUDE_RUNNER_CLAUDE_BIN` | Absolute path to the runner's own Claude Code binary. End your wrapper with `exec "$CLAUDE_RUNNER_CLAUDE_BIN" "$@"` to pass control to the pinned binary without hardcoding an install path. | self-hosted-environments-configuration see the edit
Confirmed since Anthropic's documentation has since written up pinned, on Connect Claude Code to an LLM gateway. * **Model capabilities**: if you pin a model ID that your Claude Code version doesn't recognize, features such as effort levels or extended thinking can stay disabled on it. Declare what the model supports with [`ANTHROPIC_DEFAULT_OPUS_MOD… llm-gateway-connect see the edit
How sure we are
One source agreesOne thing we can check says the same as this entry.
Anthropic's documentation agreesAnthropic's documentation has since written up pinned, on Connect Claude Code to an LLM gateway.

See this entry in the whole of v2.1.259 →

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