The release notes for the new V20.0.1 update only address the Switch’s boot-up bug, so it’s not essential for anyone without problems installing V20.0.0. The release says: “Fixed an issue where Error Code: 2206-1015 sometimes occurred when restarting the system after updating to system version 20.0.0.”

Here are the full (and brief) patch notes for this latest update via Nintendo's support page: Fixed an issue where Error Code: 2206-1015 sometimes occurred when restarting the system after updating to system version 20.0.0. If you're encountering the error, update your Nintendo Switch console in Maintenance Mode.

If your Switch is crashing following an update to version 20.0.0, you're not alone. Luckily, Nintendo is out with a patch.