Version Control

Qubit-Pro includes custom version control to help you save snapshots of your designs, compare layouts, and roll back changes.

Saving a Layout Snapshot

To save the current state of your chip design:

  1. Open the Version Control page.

  2. In the snapshot form, fill in the details: * Tag: Type a version number or tag (for example, v1.0 or v1.1-testing). * Commit Message: Write a short description explaining what you changed (for example, Optimized resonator spacing on Q1).

  3. Click the Save Snapshot button.

What you just did: You saved a permanent, read-only snapshot of the current layout to the project database. It will appear on your version timeline.

Comparing Layout Differences (Diff)

  1. Go to the version Timeline on the Version Control page.

  2. Select two different snapshots from the list.

  3. Click the Diff or Compare button.

  4. The system will display the differences between the two versions, highlighting added, modified, or removed components and parameter changes.

What this means: Comparing differences helps you track exactly how a design has evolved and identify which modifications improved or degraded the simulated performance.

Restoring an Older Version

If you want to discard recent changes and go back to an older layout:

  1. Find the desired snapshot in the version Timeline.

  2. Click the Restore or Rollback button.

  3. Confirm the action when prompted.

What you just did: You set the active design back to the selected snapshot. Any modifications made after that snapshot will be overwritten by the restored version.

Downloading a Snapshot

  1. Select any snapshot on the version timeline.

  2. Click the Download button.

  3. The layout definition file will download as a JSON file to your local computer.

What this means: You can archive your design files locally or import them into other offline tools.