macOS 27 already carries the touch tells, so audit hit targets before October

Sidecar is the load-bearing item on that list. Putting touch into Sidecar means a finger becomes a legitimate way to hit a control in a Mac window, and it does so on hardware that already exists in large numbers ^[1]. No October launch is required for a user to poke at your toolbar.

The menu bar change is the one with a bill attached already. The 9to5Mac writer reports that on a 13-inch MacBook Air, extras that used to fit to the left of the notch now spill past it ^[2]. That is not a preview of a future problem. It is a layout regression that arrives with the OS update, and it lands on whoever put an icon up there.

Mark Gurman's description of the unreleased behaviour, as relayed by 9to5Mac, is worth reading as an admission about target sizes. Touch a button and the interface is said to raise a new menu around the finger with more relevant touch commands ^[5]; the control set on offer is said to be chosen from prior interaction ^[6]; tapping a menu bar item is said to enlarge the controls so a finger can pick one ^[7]. All three are the system mediating a target that is too small for a fingertip. The implication for anyone drawing controls inside a custom view is that the system cannot do that mediation on your behalf, because it does not know what your pixels are.

The counter-argument is the rumour mill, and the rumour mill is exactly why the OS beta is the better index. Initial reporting had the redesign debuting M6 Pro and Max chips; the current account is that Apple skipped them to accelerate the M7, leaving the machine on existing M5 Pro and M5 Max silicon ^[9]. Chip reporting reversed inside one cycle. Sidecar touch and the menu bar metrics did not, because they are shipping code.

The commercial shape matters for how long the audit stays optional. There is no base model at launch, with a base M7 version rumoured for as early as next spring ^[10], which puts roughly two quarters between the first touch Mac and a cheaper one ^[13]. Expected pricing starts at $2499 for the 14-inch and $2999 for the 16-inch after Apple's June increases tied to the memory crisis ^[12], a $500 spread ^[14]. For that window, the users touching your app are the ones who bought the most expensive notebook in the range, which is not usually the cohort a team wants to hand a mis-sized target to.