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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

Claude Code v2.1.277 ·

Telemetry failures in request/response logging no longer crash the call

A telemetry failure while logging request or response content no longer crashes the API call

Under the hood Internal Changes
JSON All of v2.1.277
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
TelemetryArea: what it touches
Internal ChangesKind: in v2.1.277,
Internal ChangesSection of the release
What

The code that computes telemetry about a request's prefix and a response's content is now wrapped in try/catch. If this telemetry computation fails, Claude Code now logs "request prefix telemetry failed" or "response content telemetry failed" through its debug logger instead of letting the error propagate and interrupt the API call.

Why

Previously, a bug in this telemetry code could break an otherwise-working API request. Now such a failure is just logged, so telemetry problems can't take down a real request or response.

See this entry in the whole of v2.1.277 →

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