2026-07-07 · Anthropic

v2.1.203

securityprotocolsagentsmodels

read at source ↗ github.com

v2.1.203

Source: Anthropic Claude Code Date: 2026-07-07 URL: https://github.com/anthropics/claude-code/releases/tag/v2.1.203

Summary

Claude Code v2.1.203 (released July 7) is a stability/reliability patch, not a feature release: fixes concentrate on background-session recovery (stale daemon tokens, CLAUDE_BASE_URL drops, crash-looping on invalid working directories, worktree-isolated subagents leaking into the parent checkout), a macOS 15-20s session-switch stall regression, and a ~7 MB binary/startup-memory reduction. Also adds a login-expiry warning and MCP roots/list support for additional working directories.

Implications

  • dev-tooling consolidation — the fix list is almost entirely about hardening background/multi-agent session infrastructure (worktree isolation, subagent lifecycle, daemon recovery) rather than adding capability, consistent with the harness maturing its orchestration substrate after a run of feature-heavy releases.

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