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Claude Code

Anthropic · CLI

Claude Code 2.1.198

2.1.197→2.1.198·July 1, 2026 at 6:17 AM UTC

Patch release updating the minimum Node.js version to 22 and adding several new environment variables and internal controls for AFK detection, background agent behavior, and related features.

Changelog

  • [changed] Minimum Node.js version raised from 18 to 22.
  • [removed] The built-in mcp__playwright MCP tool has been removed.

Models & prompts

Prompts were updated with refined instructions for plan mode, focus mode, PII data handling, sub-agent delegation, and verification workflows.

Under the hood

  • Added environment variables under the CLAUDE_AFK and CLAUDE_SDK groups for controlling AFK countdowns, timeouts, auto-background behavior, parked permission waits, and subagent cache eviction.
  • Added the prompt-caching-evict-2026-05-12 API beta header.
  • New backend routes for /api/frame/read and /v1/design/consent.
  • SDK type definitions updated to document background agent defaults, AFK-resolved dialogs (afkTimeoutMs), and expanded task stop semantics.

Upgrade notes

Node.js 22 or later is now required.

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README.mdDocs2 KBpackage.jsonMetadata1.4 KBmanifest.jsonMetadata1.4 KBversion.jsonMetadata172 Bcli-wrapper.cjsCJS4.8 KBinstall.cjsCJS7 KBsdk-tools.d.tsTS135.7 KBLICENSE.mdDocs147 B
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