Agent chat and the composer-first launcher are back: 0.239.0 was pulled shortly after…
v0.240.0Jul 21, 2026
Highlights
Agent chat and the composer-first launcher are back: 0.239.0 was pulled shortly after release, and this release restores it with critical fixes to startup, chat, and the updater.
Steer agents mid-turn without interrupting them — follow-up messages queue and deliver between steps, now including Grok sessions.
Added
Right-click any pane header for a unified context menu, plus a View control for per-pane options like reader mode and tool-call display.
atrium now detects when installed AI tools have updates and can install them for you from the launcher.
Notification sounds are configurable in a new Notifications settings tab.
Drag files onto the launcher to attach them to your first prompt.
New agent panes title themselves from your first prompt.
Changed
Chat tool calls collapse by default while diffs render with syntax highlighting and folded unchanged lines, and transcripts wrap at a readable width.
Fixed
A slow startup can no longer wipe settings, launch profiles, or achievements — state loading retries instead of saving defaults over real data.
Chat works on installs without Node available — atrium now bundles its own runtime.
Updating atrium no longer hangs on the restore screen due to a background service race.
A broad chat reliability pass: interrupts, steers, resume, compaction, permission switches, and terminal↔chat conversion all settle correctly instead of leaving sessions stuck.
Fleet activity tracking writes far less to disk.
The menu-bar popover no longer flickers closed on the first click.