Moss 0.21.0

2026-10-18T11:07:07.373Z

Updates in Moss:

- Keep a separate working folder for each conversation, remembered across turns and restarts.
- Open matching conversation passages directly and expand compaction summaries inline.
- Improved task details and controls, including narrow layouts.
- Restored built-in Agent Skills, including Outline, and bundled search tool discovery.

Read the Moss Software License Agreement before installing. The installer also includes third-party license notices.

• Download for macOS arm64 (174,256,563 bytes)
  SHA-256: c467a529037ff45962ef0a66705232443bc405709ca2265d78cba16a3a8fd776

This build is signed with Developer ID and notarized by Apple. Quit the previous app and drag Moss.app into Applications, then open Moss. macOS may ask you to confirm opening an app downloaded from the internet. Existing Tenon data remains in place.

License · All releases and help