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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

Claude Code v2.1.227 ·

Resuming an interrupted thinking block accepts more model spellings

Resuming an interrupted thinking block now accepts model aliases, but the feature stays off.

Nothing to try yet In Development
JSON All of v2.1.227
Nothing to try yetTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
ThinkingArea: what it touches
In DevelopmentKind: in v2.1.227,
In DevelopmentSection of the release

Thinking-block resumption matches more model spellings but its flag defaults to false.

What

The check that decides whether an interrupted thinking block can be resumed no longer demands an exact match against two model ids; it now compares canonical forms and a known alias set, so aliases of the same model qualify. Still off unless the tengu_thinking_block_resumption flag is enabled, which defaults to false.

Evidence

tengu_thinking_block_resumption

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

Read from
Feature flag
tengu_thinking_block_resumption Off in both readings

The flag server returned off for the account this site reads and for the anonymous baseline. A reading of off cannot rule out a rollout these two readings sit outside of.

This account: off · anonymous baseline: off · compiled default in v2.1.227: off

These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.

Read once, for one account on one subscription tier, against v2.1.227. It isn't a statement about your account. What a flag value here can and cannot tell you

What has happened since
Flag reading moved The flag server now returns off for tengu_thinking_block_resumption, read as this account. A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.
Flag reading moved The flag server now returns nothing at all, having stopped carrying it for tengu_thinking_block_resumption, read as this account. A reading is one sample. Claude Code evaluates its flags remotely, so no client sees the targeting rule behind a value and this says nothing about your account.

See this across every release →

See this entry in the whole of v2.1.227 →

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