There won't be one, first time they were questioned about MIUI 12 for MI Mix 3 5G they said the first security update would be in June, when question in June about the updates they said the first security update would be in July, it's already the first of August and still nothing, no need to get our hopes up for this phone anymore they failed to deliver everything since this phone released, don't expect anything for this phone there won't be any security updates or MIUI updates this phone is no longer being updated by Xiaomi dead on arrival.