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image: Claude Code 2.1.280, pinned and installed onto the volume when it holds another - #247

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claude-code-2-1-280
Sep 22, 2026
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richard-epsilla merged 2 commits into
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claude-code-2-1-280

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Claude Opus 5.5 needs Claude Code 2.1.280 or newer (Anthropic's API refuses an older CLI with "version 2.1.280 or newer is required"), and the entrypoint installed the CLI once onto the data volume and never touched it again, so an instance from last month would never gain the model. The CLI is now installed at the release's pinned version and moved to it when the volume holds another; CLAUDE_CODE_VERSION overrides the pin.

Seen on the hosted service while verifying Opus 5.5 end to end; the hosted runner image pins the same version.

Patch release: v0.23.7.

🤖 Generated with Claude Code

… it holds another

Claude Opus 5.5 needs Claude Code 2.1.280 or newer (the API refuses an older CLI), and the
entrypoint installed the CLI once onto the data volume and never touched it again, so an instance
from last month would never gain the model. The CLI is now installed at the release's pinned
version and moved to it when the volume holds another; CLAUDE_CODE_VERSION overrides the pin.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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Pins the CLI the model needs and moves an old volume to it; checks green.

@richard-epsilla
richard-epsilla merged commit 809392d into main Sep 22, 2026
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