Claude Code v2.1.277 · 18 Sep 2026
Claude Code now waits for in-flight staged file operations to settle before handing off a turn
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All of v2.1.277
Under the hood Tier: how much it should matter to you
2 Useful: my rating, 1 to 5
2 Signal: worth watching, 1 to 5
Turn Handling Area: what it touches
Internal Changes Kind: in v2.1.277, 18 Sep 26
Internal Changes Section of the release
Unclear Nothing has been read yet about whether the tengu_turn_handoff_staged_files_wait gate is on or off for any account.
What
Claude Code now tracks staged file operations that are still in progress, and before handing off control at the end of a turn, it waits (up to a timeout) for those operations to finish. It records an event, tengu_turn_handoff_staged_files_wait , with the outcome, how long it waited, and how many operations were still pending, and logs a warning if the wait times out.
Why
This is meant to avoid a turn handing off while file staging is still mid-flight, though it isn't yet known whether this behavior is active for any given user.
How sure we are
Something disagrees Something we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubt Nothing has been read yet about whether the `tengu_turn_handoff_staged_files_wait` gate is on or off for any account.
See this entry in the whole of v2.1.277 →
18 Sep 2026 · 402 entries, this one is #382.
Use it now29 You'll notice126 Nothing to try yet23 Under the hood224
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Related
Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.
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Tool-input JSON parse failures now log MCP status and richer Zod error detail
Under the hood Tool Validation
In v2.1.277 Internal Changes release-page order
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Turn duration now accounts for detached/background tool calls separately
Under the hood Turn Handling