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

Claude Code v2.1.225 ·

Error redaction covers invalid HTTP header messages

Error and telemetry text now scrubs invalid HTTP header values so they can't leak into reports.

Under the hood Improvements
JSON All of v2.1.225
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
TelemetryArea: what it touches
ImprovementsKind: in v2.1.225,
ImprovementsSection of the release
What

Two more patterns were added to the telemetry and error scrubber so header values do not leak through error text.

Details
  • One pattern truncates everything after "has invalid value: " for a named header.
  • The other covers Headers.append and Headers.set messages about an invalid header name or value.
Evidence

has invalid value:

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

See this entry in the whole of v2.1.225 →

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