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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.308 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.79 ·

Memory Verification Instructions

Entry
JSON All of v2.1.79
EntryKind: in v2.1.79,
ChangesSection of the release
What

New system prompt instructions that teach the model to verify memories against current code before recommending from them. Memories about file paths, functions, or flags may be stale—the model now greps or checks files before acting on recalled information.

Details
  • Added a "Before recommending from memory" section to the memory system prompt
  • Instructs the model: "If the memory names a file path: check the file exists", "If the memory names a function or flag: grep for it"
  • Emphasizes that '"The memory says X exists" is not the same as "X exists now."'
Evidence

Memory verification guardrails (search for "Before recommending from memory" and "The memory says X exists")

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

See this entry in the whole of v2.1.79 →

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