Events are always prolonged commercials! Expect iOS15 when the new iPhones arrive on the 24th. They probably will drop the upgrades at the same time. Because of feature integration with macOS, expect Monterey at the same time.
Meanwhile be sure to update all your devices with that security patch NOW.
iOS 14.8, iPadOS 14.8, macOS Big Sur 11.6 and watchOS 7.6.2 all dropped today with fixes for a no-click zero-day exploit that was being used by spyware firm NSO Group:
I think Apple normally keeps iOS and MacOS updates at least 1 week apart, with the iOS update coming first. 3rd week September normally is a good time to expect a release…
My bet would also be around the 24th, but not the day itself as it is a Friday, which is never a good release day.
Normally big releases are done on an early weekday, say Monday 20th. We need to ask @ismh to do a “software” update to his hardware calendar as well and put the iOS and MacOS release dates on the calendar.
While there was a three-year run corresponding to iOS 10-11-12 where they were about a week apart, if you look at the longer-term that was more the exception than the rule:
iOS version
iOS release date
macOS version
macOS release date
interval
iOS 7
September 18
Mavericks
October 22
34 days
iOS 8
September 17
Yosemite
October 16
29 days
iOS 9
September 16
El Capitan
September 30
14 days
iOS 10
September 13
Sierra
September 20
7 days
iOS 11
September 17
High Sierra
September 25
8 days
iOS 12
September 17
Mojave
September 24
7 days
iOS 13
September 19
Catalina
October 7
18 days
iOS 14
September 16
Big Sur
November 12
57 days
Note that during the big cat/pre-iOS 7 era the two were not synced up at all, with Mac OS often coming out months before iOS, or even skipping years entirely.
I guess 15.1 will be there within the first month. They also put a few features on the backburner for the full release during betas, so will likely want to come out with them a.s.a possible …