On your device, you can go to Settings > General > Software Update and at the top there will be an option for beta updates. Tap that and you can select the public beta or developer beta. You can also check out the Apple Beta Software Program site as well.
How do i download the beta?
On your device, you can go to Settings > General > Software Update and at the top there will be an option for beta updates. Tap that and you can select the public beta or developer beta. You can also check out the Apple Beta Software Program site as well.
I hope this helps.
Says i need to make a backup before, is that just a safety measure or is it indispensable to avoid data loss after the update is complete?
You should not join the beta on your main device
Correct, you should use a separate device for testing.