Claude Code 2.1.144 release notes

Version

2.1.144

Released

19 May 2026

Status

Stable release

What's new in Claude Code 2.1.144

The official notes for Claude Code 2.1.144 list 50 changes: 2 new features, 30 fixes, 1 performance improvement and 17 other changes.

• 2 new features
• 30 fixes
• 1 performance improvement
• 17 other changes

Highlights

• new feature Added /resume support for background sessions — sessions started via claude --bg or agent view now appear alongside interactive ones…
• new feature Added elapsed duration to background subagent completion notifications (e.g. "Agent completed · 3h 2m 5s")
• performance improvement Improved SDK/headless MCP startup: pre-wait now overlaps startup instead of blocking before the first turn (up to 2s faster with…
• fix Fixed startup hanging up to 75s when api.anthropic.com is unreachable (captive portal, firewall, VPN issues) — side-channel API calls now…
• fix Fixed garbled terminal output after a missed window-resize event (e.g. dragging a VS Code split-pane divider) — now self-heals on…

Our short summary: changes are counted and classified automatically from the official notes, and highlights are shortened. The complete, authoritative list is in the official release notes on GitHub.

Full release notes on GitHub (Claude Code 2.1.144)

All Claude Code release notes · All releases

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