Unlikely, but Apple could release macOS and iOS on the same day for the first time

Apple is gearing up for September releases, with macOS Sequoia and iOS 18 set to launch simultaneously. Apple typically releases new versions of macOS in the fall, with release dates varying between September, October, and November.

The company has often opted for October releases, such as macOS Ventura on October 25, 2022 and macOS Monterey on October 25, 2021. However, there have been exceptions, with some versions such as the latest macOS Sonoma being released in September, specifically on September 26, 2023.

According to MacRumors, macOS will likely be released in mid-September, just like iOS, which was also released in October. This also means there's a small chance that both will be released on the same day, although that seems unlikely to me. But you never know, it's Apple.

The software launch is expected to coincide with Apple's annual iPhone event, likely on September 10. If past patterns hold, the new iPhones could launch by September 20 and the software updates could roll out on September 18. However, these dates are subject to change depending on Apple's final decisions.

Compatibility for macOS Sequoia extends to a range of Mac models, including iMac (2019 and later), Mac Studio (2022 and later), and MacBook Air (2020 and later). While some Intel-based Macs are supported, Apple Intelligence features require Apple silicon chips.