Claude Code v2.1.212: /fork Moves to Background Sessions, /subtask Replaces It — What You Need to Know
If you’ve been relying on /fork in Claude Code to spin up in-session subagents, version 2.1.212 — released July 16, 2026 — changes the behavior significantly. This is a packed release with 48 total changes, including a security fix you should update for immediately. Here’s the full breakdown. What Changed with /fork In all versions prior to v2.1.212, running /fork inside a Claude Code session would launch an inline in-session subagent — a background task that shared the conversation context but ran concurrently. That behavior is gone. ...