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Sweep 08 Oct 2026 · 18:53Z Build v2.1.295 516 read Stable v2.1.286 Latest v2.1.295 Next v2.1.295 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.293 ·

Remote switch can shorten the prompt cache to 5 minutes for some models

Subscribers who get the 1-hour prompt cache can be moved to a 5-minute cache for certain models when a server-side switch is on

You'll notice Improvements
JSON All of v2.1.293
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Prompt CacheArea: what it touches
ImprovementsKind: in v2.1.293,
ImprovementsSection of the release

Unclear Which models the shorter 5-minute cache can apply to is not known.

What

The prompt cache is Anthropic's servers holding on to the earlier part of a conversation for a while, so that it does not have to be processed again on every turn. Claude Code decides how long that cache should last. Subscribers on the allowlist for the longer lifetime used to get 1 hour in every case.

Claude Code now also looks at the model the main conversation is using. If that model is in a particular set and a server-side switch is on, the lifetime is cut to 5 minutes. The switch is off unless it is turned on remotely, and with the switch off the 1-hour lifetime stays as before.

Why

Anthropic can shorten the cache lifetime for particular models without shipping a new Claude Code release. A shorter cache means a long pause between messages is more likely to make Claude reprocess the whole conversation.

Read from
Feature flag
tengu_tidy_frost Not enough to say

Nothing here resolved what this flag was doing on this version, so nothing here should be read as on or off.

This account: no value returned · anonymous baseline: no value returned · compiled default in v2.1.293: 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.

tengu_prompt_cache_1h_config Not enough to say

Nothing here resolved what this flag was doing on this version, so nothing here should be read as on or off.

This account: no value returned · anonymous baseline: no value returned · compiled default in v2.1.293: not a boolean we can read

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 v2.1.293. It isn't a statement about your account. What a flag value here can and cannot tell you

How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtWhich models the shorter 5-minute cache can apply to is not known.
The name it cites is new in this buildNew in this build: tengu_tidy_frost

See this entry in the whole of v2.1.293 →

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