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Claude Code v2.1.270

2 entries read v2.1.269 → v2.1.270 Markdown Unofficial

This build adds a bypass to the refusal-fallback "silent rearm" system, letting Claude Code re-offer a fallback model for bio-category refusals even after a user has already declined that route. It stays confined to bio-related refusals and remains part of the in-development fallback machinery rather than something a user can trigger directly. The change is not switched on for general use in this release.

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Smaller changes and internals, grouped as the pipeline found them. Nothing is dropped, it is only further down.

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In Developmentopen

◌In dev
Under the hood
Useful3 Signal3
Model Routing unclear

Refusal-fallback "silent rearm" can now bypass the declined-route check for bio-category refusals#

A new bypass lets Claude Code re-offer a fallback model for bio-related refusals even after the user already declined that route

Unclear Whether the tengu_refusal_fallback_route_declined, tengu_refusal_fallback_setting_changed, and tengu_refusal_fallback_suppressed gates are enabled is unread, not established either way.

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Internal Changesopen

Verbatim
Official · Anthropic

Anthropic’s official release notes

Published verbatim by Anthropic for v2.1.270. Text is unmodified from the upstream changelog. Everything else on this page came out of the bundle instead, which is why the two lists don't match.

Of these 1 bullets, 0 name something an entry on this page also names, 0 name something no entry here does, and 1 name nothing specific enough to line up either way. The pairings are made on names both sides wrote down, a flag or a setting or a slash command, so read one as probably the same thing rather than as a fact, and read the middle number as candidates rather than as a miss count.

  • Fixed read-only git commands in Bash unexpectedly asking for permission after a session had been running for a while (regression in 2.1.269) Nothing to match on
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No change to the system prompt since v2.1.269.

Claude Code, interactive mode

No prompt capture for v2.1.270, so this release's prompt surface is unknown.

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Documentation

What the docs did around this release

86 documentation changes were recorded within 24 hours either side of this release, nearest first. The closest 12 are below. They're here because they happened near this release in time. That's not a claim that this release caused the edit, or that the page documents anything in it.

claude-tag/admins/connections/custom Changed +1 -1 recorded here claude-docs changelog Changed +4 -0 recorded here claude-code claude-tag/users/when-claude-responds Changed +1 -1 recorded here claude-docs claude-tag/users/commands Changed +12 -0 recorded here claude-docs claude-tag/admins/troubleshooting Changed +6 -2 recorded here claude-docs settings-reference Changed +2 -2 recorded here claude-code server-managed-settings Changed +1 -1 recorded here claude-code errors Changed +1 -1 recorded here claude-code agent-view Changed +1 -1 recorded here claude-code agent-sdk/typescript Changed +1 -1 recorded here claude-code worktrees Changed +1 -1 recorded here claude-code troubleshoot-install Changed +1 -29 recorded here claude-code

Every time above is when this site's poller recorded the change, which is up to half an hour after the edit on an ordinary read and up to a day after it on a full sweep. Upstream's own edit time is used instead wherever a capture carries one. None of these do.

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