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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeReleasesv2.1.221entry #286

Claude Code v2.1.221 ·

Telemetry values run through sanitizers in more places

More analytics fields get cleaned before sending, and some events carry extra context.

Under the hood Internal Changes
JSON All of v2.1.221
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
TelemetryArea: what it touches
Internal ChangesKind: in v2.1.221,
Internal ChangesSection of the release
What

More analytics payload fields are wrapped before being sent, and a few events gained extra context.

Details
  • Sanitized fields: bug-report reason, MCP error_code (stringified through a mapper), forkLabel on fork-agent queries, the clicked slash-command name, the claude-api subcommand, artifact publish template, and OAuth flow error_code.
  • New session-level set policyPredicateTelemetryEmitted dedupes policy-predicate events.
  • Artifact publish events gained a workshop info blob, and review dispatch gained diffFiles and diffLines.
Evidence

tengu_bug_report_failed

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

See this entry in the whole of v2.1.221 →

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