Unofficial reconstructed notes, not a Cursor changelog. Some surfaces in a desktop build are gated and may not be live yet.
v3.19.13
stablePublished Sep 4, 2026
✦NEW5✓FIX1
Changelog
Features
- Composer auto mode now classifies Smart Mode automatically once the composer has loaded and settled.
- Cloud subagents now show a loadable header identity and can link a parent agent when the subagent is ready.
- Cloud targets now let you pick a cloud agent target from the composer.
- Skills now resolve from a dedicated skill root.
- Agent host now waits on a bounded host bridge and recovers more cleanly when a host is deleted in a burst.
Notes
- Feature gates still hide some of these surfaces; they shipped in the desktop build but may not be live yet.