The software that will power the new iPhones, and all models right back to the iPhone 11, will go on general release this day or, possibly, Tuesday, Sept. 16. Date and time expected: 7 a.m. local time, Friday, Sept. 19 This is it: the iPhone 17 series will hit stores and go on general sale.

Apple usually sends out invites in late August, but history and habit suggest this year’s iPhone event will fall on September 9.

The most widely discussed rumor is that Apple might be introducing its slimmest phone ever, the iPhone Air, which may replace the iPhone Plus. This rumored device is said to have a profile thickness of 5.5 mm, making it about 0.08 inches thinner than current iPhones. It’ll also feature a 6.6-inch screen.