Anthropic shipped Claude Code v2.1.282 on 2026-09-24: maxProseWidth caps prose in wide terminals, allowClaudeInChromeWithManagedMcp lets claude --chrome coexist with exclusive managed-mcp.json, and store.readiness_grace_seconds keeps Apps Gateway /readyz up through brief Postgres failovers—plus many fixes for --continue/--resume dropping extended thinking, redacted_thinking 400s, and managed permission blocks.

Key Takeaways

  • ✓`maxProseWidth` caps prose width; tables/code keep full width
  • ✓`allowClaudeInChromeWithManagedMcp` for Chrome + exclusive managed-mcp.json
  • ✓`store.readiness_grace_seconds` for Apps Gateway /readyz through short Postgres outages
  • ✓Resume/continue and redacted_thinking 400 fixes; drop thinking blocks and retry once when needed
  • ✓Install `@anthropic-ai/[email protected]` (release 2026-09-24T18:38:05Z)
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Project Links & Resources

Direct Access
Direct access to official project resources and documentation
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GitHub Release v2.1.282
github.com/anthropics/claude-code/releases/tag/v2.1.282
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CHANGELOG.md
github.com/anthropics/claude-code/blob/main/CHANGELOG.md
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npm @anthropic-ai/claude-code 2.1.282
www.npmjs.com/package/@anthropic-ai/claude-code/v/2.1.282
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Claude Code docs overview
docs.anthropic.com/en/docs/claude-code/overview
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In-Depth Technical Analysis

Background

Enterprise Claude Code users hit friction on wide-terminal prose, Chrome under exclusive managed-mcp.json, and --continue/--resume dropping extended thinking or hitting redacted_thinking 400s. v2.1.282 addresses those with settings plus targeted fixes.

Architecture

maxProseWidth caps prose while tables/code stay full width. allowClaudeInChromeWithManagedMcp lets claude --chrome run with exclusive managed MCP. store.readiness_grace_seconds keeps Apps Gateway /readyz ready through short Postgres outages. Resume/continue paths reduce rewritten history and dropped thinking; invalid redacted_thinking data triggers drop-and-retry; refused compaction retries on a fallback model.

Benchmarks

No SWE-bench numbers in this point release. Verified: GitHub v2.1.282 at 2026-09-24T18:38:05Z; npm latest 2.1.282. Changelog notes faster resume for very large sessions without published timings.

Get started

npm i -g @anthropic-ai/[email protected], set maxProseWidth / allowClaudeInChromeWithManagedMcp as needed, and use claude doctor for telemetry setting notices.