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Sweep 10 Nov 2026 · 02:18Z Build v2.1.322 539 read Stable v2.1.311 Latest v2.1.322 Next v2.1.322 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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Claude Code v2.1.267 ·

Memory-context prefetch added, gated off by default

A new background 'memory context' prefetch path exists but stays off unless enabled by feature gate or a new env var

Group of 2 Nothing to try yet No documentation found In Development
JSON All of v2.1.267
Nothing to try yetTier: how much it should matter to you
3Useful: my rating, 1 to 5
4Signal: worth watching, 1 to 5
MemoryArea: what it touches
In DevelopmentKind: in v2.1.267,
What probably matters to youSection of the release

What

  • A new memory-context prefetch/fetch path was added that fires performance timers (memory_context_fetch_ms, memory_context_boot_spillover_ms). It requires either CLAUDE_CODE_ENTRYPOINT being remote_cowork/remote_cowork_trigger, or a new SYSTEM_REMINDER_MEMORY_CONTEXT environment variable, plus an account/session check, plus the tengu_misty_anchor feature gate.
  • SYSTEM_REMINDER_MEMORY_CONTEXT was also added to the lists of environment variables that get passed through/preserved for sessions, and setting it can force-enable the memory-context fetch even when tengu_misty_anchor would otherwise be off.

Why The feature is built but gated off by default (tengu_misty_anchor), so most users won't see any behavior change yet; the env var provides a way to force it on for testing.

Read from
Names in the bundleSYSTEM_REMINDER_MEMORY_CONTEXT
Feature flag
tengu_misty_anchor 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 v2.1.267: off

Read once, for one account on one subscription tier, against v2.1.267. 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 on for tengu_misty_anchor, 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 off for tengu_misty_anchor, 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 on for tengu_misty_anchor, 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 off for tengu_misty_anchor, 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 on for tengu_misty_anchor, 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 off for tengu_misty_anchor, 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 on for tengu_misty_anchor, 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 off for tengu_misty_anchor, 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 →

How sure we are
One source agreesOne thing we can check says the same as this entry.
The name it cites is new in this buildNew in this build: SYSTEM_REMINDER_MEMORY_CONTEXT

See this entry in the whole of v2.1.267 →

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