Start by checking your states laws. If it says written notification then notify him in writing. My state says the NCP must be notified 60 days prior to the intended move. He can protest it and if he does you will probably have to keep the child in that state until the hearing. it would be up to you to prove that it would be beneficial for her to move (not you, her) but if he has not seen her in over 2 years he can't really argue that the move will hurt his relationship with her.
Keep in mind that while the CO now says supervised visits it would very well change with you moving a long distance and you would probably be responsible for transportation. Your chances of being granted a move are probably better than average since he is not an involved parent. Just be prepared for him to want to be involved if you say you are relocating with the child.
You might be able to just go and inform him later but if he files a complaint it could put you in a bad position.
When we were together, you said you'd die for me. Now, I think it's time you kept your promise.