Google Colab–GitHub sync notification persistence

Goal: Keep the Colab interface free of repetitive GitHub sync banners while still being aware of any divergence between the notebook stored in GitHub and the session copy.

Constraints: The yellow banner that appears when a GitHub‑hosted notebook is out of sync can be dismissed with the Hide button, but this preference does not persist across notebook reloads or sessions. Colab’s Edit > Notifications menu does not expose a toggle for these GitHub alerts, and there is no documented global setting to enable or disable them. Users who rely on manual “Save a copy on GitHub” risk forgetting to push changes, and attempts to suppress the banner with custom CSS or JavaScript are unsupported and may break after UI updates.

Uncertainty: It is unclear whether a supported, persistent method exists to suppress GitHub sync notifications, or whether any workaround would introduce unacceptable risks such as missed divergences or UI instability.

Questions:

• Is there a supported way to persistently disable GitHub sync notifications in Colab?
• If no supported option exists, what are the safety implications of using custom CSS/JS to hide the banner?
• What alternative approaches can users adopt to stay informed of out‑of‑sync states without relying on the banner?