[aspiring developer] Beta to Golden Master, is it flawless?

I'm an aspiring developer. I'm thinking to enrol one device in the developer program.
Once I enrol my iPhone into the program, download the profile and work on it, it's my understanding that I will be able to receive all the updates.
I read that for un enrol a device it's necessary to restore from DFU but...
My question is: once the Golden Master will hit the market in the next fall, will I be able to delete the profile and stay on a general release? Or I will need to restore my phone in DFU to have it back to "normal"?

Thanks in advance for your help.