(Solved) Hackintosh can't update to Big Sur 11.4 OC 0.7.0

hello guys, i have a problem from my hackintosh, now i use OC 0.7.0, and MacOS Big Sur 11.2.3 and then everyday i always check my software update but the software can't give me a update for MacOS Big Sur 11.4, and never out for the notification, anyone help me? Thank you