Claude Code v2.1.239 — major release with data-residency cost premium, cross-session messaging on Windows, ListAgents
Anthropic
On Aug 21, Anthropic released Claude Code v2.1.239 (50+ changes): cost estimates (/cost, status line, --max-budget-usd) now include the 1.1x US-only-inference premium for data-residency workspaces; new /claude-api upgrade migrates Python projects from anthropic 0.x to 1.x; Alpine/musl builds now load native image-paste, clipboard, and audio-capture add-ons; cross-session messaging expanded to Windows (was macOS/Linux only); /goal check-ins back off (30 min -> 1 h -> 2 h) instead of firing every 30 min; ListAgents / /list-agents lists live teammates; keybindingFlavor 'readline' matches Bash word-key behavior. Also fixes Bedrock streaming billing, Edit/Write latency in JetBrains, MCP elicitation clipping, and OpenTelemetry trace fragmentation.
Why it matters
This is the largest Claude Code release in the window and the first to surface data-residency pricing in the CLI itself — a meaningful change for enterprise users on Bedrock/Vertex. The cross-session messaging expansion to Windows and the /goal backoff together signal Anthropic is investing in long-lived, multi-agent Claude Code workflows rather than single-session chats.
Importance: 3/5
Major Claude Code release (50+ items, data-residency pricing)