Megastructure Arc · September 8, 2026
Arc 1.9.5
Arc 1.9.5 makes empty rooms easier to understand, keeps message recipients tied to the room, and fixes file references, folder linking, and conversation scrolling.
Current release
Clearer rooms, steadier conversations
Windows 10/11 (64-bit), or macOS 11+ on Apple Silicon. Bundled Local AI requires macOS 26+.
Highlights
- Empty rooms welcome you and explain the two ways to bring in an agent. The composer stays readable when the app is zoomed.
- Choose recipients from agents in the current room. Your selection survives routine status refreshes, and agents from a previous daemon are cleared when the hub changes.
Fixes and refinements
- GLM Flash Latest can be added from OpenRouter without its public model name being mistaken for an API key.
- On macOS, the timeline follows a growing reply while you are at the bottom. Scrolling away still lets you read earlier messages.
- A folder inside another room’s linked folder is offered as a new link, with wording that explains the relationship. Moving an exact folder link still names its current room and project.
- Files named by managed agents can be verified on installations that have never used the legacy Local AI panel.
System requirements
Windows 10/11 (64-bit), or macOS 11+ on Apple Silicon. Bundled Local AI requires macOS 26+.