After finishing up your tests, you can begin migrating your entire fleet to Blueprints.
We recommend migrating your devices in batches. Start by migrating 20 devices at a time and then build up from there. Adding devices that have the same blueprint to a group may help to save time along the way.
Continue to verify your devices' behavior, and use the Event Feed to track the device's Converge status.
You now have the tools you need to migrate your devices. Go forth and upgrade!