Business OS

Version 1.2.2 · for Mac and Windows

Download Business OS 1.2.2 (Mac and Windows)

One zip for both. 1.5 MB. SHA-256 feb69ae7e6ac91a9539b30feb0912102becc9b21fcb8a9a49b0606e75f160bbd

Install

Mac

  1. Open the downloaded zip. It unzips into a business-os-v1.2.2 folder.
  2. In that folder, right-click Install Business OS.command and choose Open, then Open again.
  3. Answer the setup questions. That's it.

If macOS still refuses, open System Settings, Privacy & Security, and click Open Anyway.

Windows

  1. Right-click the downloaded zip and choose Extract All.
  2. In the extracted folder, double-click Install Business OS.cmd. If SmartScreen appears, click More info, then Run anyway.
  3. Answer the setup questions. That's it.

Updates

Installed copies check this site for new versions. Run bos update to install one; every release is signed and checked before anything changes, and bos rollback undoes it.

What's new

1.2.2 2026-10-21

Updater hardening: refuses stale or replayed releases, caps download sizes, binds each signed file to its role

1.2.1 2026-10-21

Signed updates: every release is now signed and checked before anything installs. Updates come from the hosted channel, and the daily update check is on by default.