Claude Code v2.1.282: 400-error fix for web-search history, telemetry hardening
Anthropic
Claude Code v2.1.282 fixes a bug where every request failed with HTTP 400 once conversation history contained web-search results the API cannot decrypt (seen notably through third-party gateways). Project and local settings now ignore OpenTelemetry export variables, auto mode defaults to the server-side classifier on direct Anthropic API (opt-out via CLAUDE_CODE_AUTO_MODE_SERVER=0), a new maxProseWidth setting caps prose width in wide terminals, and resume time for very large, never-compacted sessions is substantially improved.
Why it matters
The 400-on-web-search-history and slow-resume bugs hit exactly the users with long sessions and proxy backends; the OpenTelemetry hardening closes a route by which project-level config could silently enable content capture.
Importance: 2/5
Minor version with real bug fixes and security hardening